WO2011007508A1 - 組電池及び電池モジュール - Google Patents
組電池及び電池モジュール Download PDFInfo
- Publication number
- WO2011007508A1 WO2011007508A1 PCT/JP2010/004254 JP2010004254W WO2011007508A1 WO 2011007508 A1 WO2011007508 A1 WO 2011007508A1 JP 2010004254 W JP2010004254 W JP 2010004254W WO 2011007508 A1 WO2011007508 A1 WO 2011007508A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- battery
- assembled battery
- plate
- connection
- assembled
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/514—Methods for interconnecting adjacent batteries or cells
- H01M50/516—Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/552—Terminals characterised by their shape
- H01M50/559—Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/562—Terminals characterised by the material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to an assembled battery configured by arranging a plurality of batteries, and a battery module (battery device) configured by arranging a plurality of assembled batteries.
- the battery module includes a main body case and an assembled battery provided in the main body case.
- the assembled battery is configured by arranging a plurality of batteries, and in the batteries adjacent to each other in the assembled battery, the positive electrode of one battery and the negative electrode of the other battery are connected in series with each other via a connecting body ( Patent Document 1).
- Patent Document 1 may cause a decrease in productivity of the assembled battery.
- a battery module when the battery module is used as, for example, a driving source of an automobile, a battery module is configured by electrically connecting a very large number of batteries.
- N-1 connection bodies are required, and the batteries are connected in series one by one using the connection bodies. Must be connected. Therefore, as the number of batteries constituting the assembled battery increases, the productivity of the assembled battery further decreases. When the productivity of the assembled battery decreases, the productivity of a battery module manufactured using the assembled battery decreases.
- This invention is made
- the batteries are arranged such that the sealing plates for sealing the opening of the battery case face each other in the same direction.
- the terminals of the first pole of the battery are respectively connected to the connection pieces of the first pole, and the terminals of the second pole of the battery are respectively connected to the connection pieces of the second pole.
- the first pole connecting piece and the second pole connecting piece are arranged on the sealing plate side, the first pole connecting piece is connected in parallel to each other, and the second pole connecting piece is connected in parallel to each other. .
- the connection piece of the 1st pole and the connection piece of the 2nd pole are laminated
- the terminals of the first pole of the battery may be connected in parallel to each other, and the terminals of the second pole of the battery may be connected in parallel to each other. Therefore, since it is not necessary to connect the batteries one by one in order, the productivity of the assembled battery can be improved.
- an assembled battery and a battery module excellent in productivity can be provided.
- FIG. 1 is a perspective view of a battery module according to an embodiment of the present invention.
- FIG. 2 is a plan view of the battery module in one embodiment of the present invention.
- FIG. 3 is a cross-sectional view of an assembled battery according to an embodiment of the present invention.
- FIG. 4 is a perspective view showing a negative electrode connection structure in an assembled battery according to an embodiment of the present invention.
- FIG. 5 is a perspective view showing a positive electrode connection structure in the assembled battery according to the embodiment of the present invention.
- FIG. 6 is a cross-sectional view of a battery module according to an embodiment of the present invention.
- FIG. 7 is a cross-sectional view of an assembled battery according to another embodiment of the present invention.
- FIG. 8 is a perspective view showing a negative electrode connection structure in an assembled battery according to another embodiment of the present invention.
- FIG. 9 is a perspective view of an assembled battery according to another embodiment of the present invention.
- FIG. 1 is a perspective view of a battery module according to Embodiment 1 of the present invention
- FIG. 2 is a plan view of the battery module shown in FIG.
- FIG. 3 is a cross-sectional view of the assembled battery 2 according to the present embodiment
- FIG. 4 is a perspective view showing a negative electrode connection structure in the assembled battery 2
- FIG. 5 shows a positive electrode connection structure in the assembled battery 2. It is a perspective view shown.
- FIG. 6 is a cross-sectional view of the battery module according to this embodiment.
- FIG. 2 indicates the direction in which the cylindrical batteries 3 are arranged in the assembled battery 2, and this direction is hereinafter referred to as “the arrangement direction D1 of the cylindrical batteries 3”.
- D2 shown in FIG. 2 and FIG. 6 indicates a direction in which the assembled battery 2 is arranged in the battery module, and this direction is hereinafter referred to as “an arrangement direction D2 of the assembled battery 2”.
- FIG. 6 the component of one assembled battery (the assembled battery located on the left side of FIG. 6) is denoted by the numeral “A” and the other assembled battery (the assembled battery located on the right side of FIG. 6).
- the reference numeral “number + B” is attached to the constituent elements.
- FIG. 6 illustrates a case where two assembled batteries are directly connected to each other in order to avoid the figure from becoming complicated.
- the battery module according to the present embodiment includes a main body case 1, and the main body case 1 is a box shape having a rectangular planar shape.
- the main body case 1 as shown in FIG. 2, seven rows of assembled batteries 2 are arranged in parallel to each other.
- each assembled battery 2 20 cylindrical batteries 3 are arranged in a row (longitudinal direction of the main body case 1), and the sealing plates 13 (positive terminals, see FIG. 3) of the cylindrical batteries 3 are connected to each other.
- the battery cases 10 negative electrode terminals, see FIG. 3) of the cylindrical battery 3 are connected to each other.
- 20 cylindrical batteries 3 are connected in parallel. Therefore, when the electromotive force of one cylindrical battery 3 is 3.6V, the electromotive force of the assembled battery 2 is also 3.6V.
- the positive electrode connection plate (electrode plate) 33 (see FIG. 5) of one assembled battery 2 and the negative electrode connection plate (electrode plate) 27 of the other assembled battery 2 (see FIG. 4) Is connected. That is, adjacent battery packs 2 are connected in series. Therefore, when the electromotive force of the assembled battery 2 is 3.6V, the electromotive force of the battery module is 25.2V.
- the electromotive force of 25.2 V obtained in this way is taken out between the electrode terminal 4 and the electrode terminal 5 provided on the outer peripheral wall of the main body case 1 of FIG.
- a control terminal 6 and a control terminal 7 that perform charge / discharge control of the cylindrical battery 3 are provided above the electrode terminal 4 and the electrode terminal 5.
- an inlet 8 and an outlet 9 for cooling water are provided below the electrode terminal 4 and the electrode terminal 5.
- the cylindrical battery 3 is cooled by allowing cooling water to flow into the main body case 1 from the inlet 8, and the cooling water whose temperature has been increased by cooling the cylindrical battery 3 flows out of the main body case 1 from the outlet 9. .
- the cooling water that has flowed out of the main body case 1 flows again into the main body case 1 from the inlet 8 when the temperature decreases.
- the cylindrical battery 3 includes a bottomed cylindrical battery case 10 having an opening at one end (the upper end in FIG. 3), and an electrode provided in the battery case 10. It has a group 11, an assembly sealing body (sealing body) 12 that covers the opening of the battery case 10, and a sealing plate 13 that constitutes the assembly sealing body 12.
- the battery case 10 is made of a conductive material (for example, metal). Since the outer surface of the battery case 10 is not covered with a resin tube or the like, the entire outer surface of the battery case 10 is the negative electrode terminal of the cylindrical battery 3.
- the electrode group 11 is not labeled in order to avoid complication of the drawing, but is configured by winding a positive electrode plate and a negative electrode plate via a separator.
- the negative electrode plate of the electrode group 11 is welded to the bottom surface of the battery case 10 via the negative electrode lead 14, thereby being electrically and mechanically connected to the bottom surface of the battery case 10. Therefore, the battery case 10 functions as the negative electrode terminal of the cylindrical battery 3 as described above.
- a welding electrode (not shown) is formed in the hollow portion 11 a of the electrode group 11 before the upper end surface of the electrode group 11 is covered with the assembly sealing body 12 in FIG. And welding with the negative electrode lead 14 pressed onto the bottom surface of the battery case 10 through the welding electrode.
- the insulating plate 15 is inserted into the battery case 10 through the opening of the battery case 10 and disposed on the upper end surface of the electrode group 11.
- a through hole 15 a is formed at the center of the insulating plate 15, and the positive lead 16 connected to the positive plate of the electrode group 11 is passed through the through hole 15 a of the insulating plate 15 to open the battery case 10. Pull up.
- the assembly sealing body 12 is configured by sequentially stacking a metal plate 17, a metal plate 18, an insulating plate 19, a metal valve plate 20, and a sealing plate 13 toward the outside of the battery case 10.
- a packing 21 is provided on the outer periphery of the assembly sealing body 12.
- the structure of the assembly sealing body 12 will be described in more detail.
- the upper end of the positive electrode lead 16 is electrically connected to the lower surface of the metal plate 17, and a through hole 22 is provided in the center of the metal plate 17.
- the peripheral edge of the upper surface of the metal plate 17 is electrically connected to the lower surface of the metal plate 18.
- a through hole 23 is also formed in the metal plate 18, and a protrusion 24 that protrudes toward the opening of the battery case 10 is formed in the center of the metal plate 18.
- the protrusion 24 passes through a through hole 25 formed in the center of the insulating plate 19 and abuts against the center of the lower surface of the metal valve plate 20.
- the pressure in the battery case 10 becomes higher than a predetermined value, the pressure escapes from the through hole 22 of the metal plate 17 and the through hole 23 of the metal plate 18, breaks the metal valve plate 20, and passes the sealing plate 13. Escape out of the battery case 10 through the pores 26.
- the metal plate 17 and the metal plate 18 and the sealing plate 13 are connected via the metal valve plate 20, if the metal valve plate 20 is broken, the electrical connection between the metal plate 17 and the metal plate 18 and the sealing plate 13 is performed. Connection will be interrupted.
- the assembled battery 2 according to the present embodiment is configured by arranging the cylindrical batteries 3 so that the sealing plates 13 face each other in the same direction, and includes a negative electrode connection plate 27, a positive electrode connection plate 33, and a connecting member (connection). Plate) 35.
- a negative electrode connection plate 27 a positive electrode connection plate 33
- a connecting member (connection). Plate) 35 a connecting member (connection). Plate
- the negative electrode connection plate 27 extends in the arrangement direction D1 of the cylindrical batteries 3 as shown in FIG. 4, and is welded to the battery case 10 as shown in FIGS. Specifically, as shown in FIGS. 3 and 4, the center in the short direction of the negative electrode connection plate 27 is in contact with the open end 10 a of the battery case 10 and is welded to the open end 10 a. Both ends in the short direction of the connecting plate 27 are in contact with the side surface of the battery case 10 and are welded to the side surface. Accordingly, the battery cases 10 are connected in parallel to each other via the negative electrode connection plate 27.
- a through hole 28 is formed at the center of the negative electrode connection plate 27 in the short direction.
- the through holes 28 penetrate in the thickness direction of the negative electrode connection plate 27, and are formed at intervals in the arrangement direction D ⁇ b> 1 of the cylindrical batteries 3.
- the sealing plate 13 of the cylindrical battery 3 is exposed from each of the through holes 28, so that contact between the negative electrode connection plate 27 and the sealing plate 13 can be avoided.
- the air holes 26 of the sealing plate 13 communicate with each of the through holes 28, so that a gas escape path in the battery case 10 can be secured.
- a welding allowance 29 is provided on one end side in the short direction of the negative electrode connection plate 27 (right side in FIG. 3). As shown in FIG. 4, the welding allowance 29 is disposed at a distance from each other in the arrangement direction D ⁇ b> 1 of the cylindrical batteries 3, and is in contact with and welded to the side surface of the battery case 10.
- the negative electrode connection plate 27 in this embodiment has a function of connecting the cylindrical batteries 3 in parallel in the arrangement direction D1 of the cylindrical batteries 3 (part extending in the arrangement direction D1 of the cylindrical batteries 3). And a portion having a function of connecting to each of the cylindrical batteries 3 (a portion around the through hole 28 and welded to the open end 10a of the battery case 10 and a welding allowance 29). . Therefore, the current supplied to the assembled battery can be evenly distributed to the cylindrical batteries 3 constituting the assembled battery 2.
- the negative electrode connection plate 27 is bent twice, as shown in FIG. 3, on the other side in the short direction of the negative electrode connection plate 27 (left side in FIG. 3).
- a portion of the negative electrode connecting plate 27 that extends downward at the other short side is a welding allowance 30, and the welding allowance 30 is in contact with the side surface of the battery case 10 and is welded.
- a portion extending in the horizontal direction at the other short-side end of the negative electrode connection plate 27 is a connection portion 31, and the connection portion 31 is welded to a positive electrode connection plate 33 of an assembled battery located adjacent thereto as described later.
- an insulating member (insulator) 32 and a positive electrode connection plate 33 are disposed on the negative electrode connection plate 27 (specifically, the center in the short direction of the negative electrode connection plate 27). Are stacked.
- the insulating member 32 and the positive electrode connecting plate 33 extend in the arrangement direction D1 of the cylindrical battery 3, and each of the insulating member 32 and the positive electrode connecting plate 33 penetrates the through hole 28 of the negative electrode connecting plate 27.
- a hole 32a and a through hole 34 are formed.
- the sealing plate 13 is exposed from the communication hole formed in this way. Further, since the vent hole 26 communicates with the communication hole, a gas escape path in the battery case 10 can be secured.
- the positive electrode connection plate 33 is connected to the sealing plate 13 exposed from the communication hole via a connecting member 35.
- the connecting member 35 is provided across the edge of the communication hole, and one end thereof is welded to the sealing plate 13 and the other end is welded to the positive electrode connecting plate 33.
- the sealing plates 13 are connected in parallel to each other via the positive electrode connection plate 33 and the connecting member 35.
- the connection structure of the positive electrode of the assembled battery 2 in the present embodiment includes a portion (positive electrode connection plate 33) having a function of connecting the cylindrical batteries 3 in parallel in the arrangement direction D1 of the cylindrical batteries 3, and the cylinder. And a portion (connecting member 35) having a function of connecting to each of the battery cells 3. Therefore, the current supplied to the assembled battery can be evenly distributed to the cylindrical batteries 3 constituting the assembled battery 2.
- the positive electrode connection plate 33 is bent twice at one end side in the short direction of the positive electrode connection plate 33 (right side in FIG. 3). Specifically, the battery case 10 is bent on the opening end portion 10a and extends downward without contacting the welding allowance 29 of the battery case 10 or the negative electrode connection plate 27, and is then bent again and extends in the horizontal direction. A portion extending in the horizontal direction at one end in the short direction of the positive electrode connection plate 33 is a connection portion 36, and the connection portion 36 is for the negative electrode in the short direction of the battery pack 2 (corresponding to “the arrangement direction D2 of the battery pack 2”) The connection plate 27 extends in the opposite direction to the connection portion 31. As will be described later, the connecting portion 36 is welded to the adjacent negative electrode connecting plate 27 of the assembled battery.
- the cylindrical battery 3 is first arranged so that the sealing plate 13 faces the same direction, and then the negative electrode connection plate 27 is placed on the open end 10 a of the battery case 10.
- the negative electrode connecting plate 27 and the battery case 10 are welded, and then the positive electrode connecting plate 33 is disposed on the negative electrode connecting plate 27 with the insulating member 32 interposed therebetween, and then the connecting member 35 is sealed with the sealing plate. 13 and the positive electrode connection plate 33 may be welded. Therefore, the productivity of the assembled battery 2 can be improved as compared with the case where the adjacent cylindrical batteries are connected one by one using the connection body.
- the negative electrode connection plate 27 is welded to the open end 10 a of the battery case 10.
- the thickness of the packing 21 in the height direction of the battery case 10 is thicker than the thickness of the packing 21 in the radial direction of the battery case 10. Therefore, the negative electrode connection plate 27 can be welded to the battery case 10 while reducing damage to the electrode group and the like.
- the negative electrode connection plate 27 and the positive electrode connection plate 33 are stacked on the open end portion 10a of the battery case via the insulating member 32. Therefore, generation
- the wiring can be concentrated on the sealing plate 13 side. Therefore, since it is possible to prevent the wiring from being provided on the side surface of the battery case 10, the container in which the cooling water is accommodated can be brought into close contact with the side surface of the battery case 10. Therefore, the cooling efficiency of the cylindrical battery 3 can be improved.
- connection portion 36A of the positive electrode connection plate 33A of one assembled battery 2A and the connection portion 31B of the negative electrode connection plate 27B of the other assembled battery 2B are mutually connected.
- the connecting portion 31 of the negative electrode connecting plate 27 and the connecting portion 36 of the positive electrode connecting plate 33 extend in opposite directions in the short direction of the assembled battery 2. Therefore, the assembled battery 2 is arranged and connected to the connecting portion 31 so that the connecting portion 31 of the negative electrode connecting plate 27 and the connecting portion 36 of the positive electrode connecting plate 33 are alternately arranged in the arrangement direction D2 of the assembled battery 2. If the part 36 is welded together, the battery module which concerns on this embodiment can be produced. Therefore, the productivity of the battery module can be improved.
- FIG. 7 is a cross-sectional view of the assembled battery 2 according to Embodiment 2 of the present invention.
- the shapes of the insulating plate and the positive electrode connection plate are different from those of the first embodiment. In the following, differences from the first embodiment will be mainly described.
- the positive electrode connection plate 33 is bent on the opening end portion 10a of the battery case 10 as shown in FIG. It extends to the front side of the connection portion 31 of the negative electrode connection plate 27 toward the lower side.
- one end in the short direction of the positive electrode connection plate 33 is provided on the side surface of the battery case 10 or on the welding allowance 29 of the negative electrode connection plate 27 via the insulating member 32.
- the other end of the connecting plate 33 in the short side direction is provided on the welding allowance 30 of the connecting plate for negative electrode 27 via the insulating member 32.
- both ends in the short direction of the positive electrode connection plate 33 extend downward (to the cylindrical battery 3 side), a plurality of the cylindrical batteries 3 are formed at both ends in the short direction of the positive electrode connection plate 33. Therefore, the plurality of cylindrical batteries 3 can be fixed via the positive electrode connection plate 33 even before welding.
- FIG. 8 is a perspective view of the assembled battery 2 according to Embodiment 3 of the present invention.
- the connection structure of the negative electrode in the assembled battery 2 is different from that of the first embodiment. In the following, differences from the first embodiment will be mainly described.
- a negative electrode connection piece 127 is connected to each battery case 10, and the negative electrode connection piece 127 is adjacent to the negative electrode connection plate 27 in the first and second embodiments. It is formed by cutting between the through holes 28.
- the negative electrode connecting piece 127 has a welding allowance 129, a welding allowance 130, and a connecting portion 131 corresponding to the welding allowance 29, the welding allowance 30, and the connecting portion 31 in the first and second embodiments.
- the positive electrode connection plate 33 is provided on the negative electrode connection piece 127 via an insulating member 32 (not shown).
- the plurality of cylindrical batteries 3 are connected in parallel to each other via the positive electrode connection plate 33 in the arrangement direction D1 of the cylindrical batteries 3.
- the negative electrode connecting member of one assembled battery 2 (the negative electrode connecting member is a member for connecting the negative electrode connecting pieces 127 in parallel to each other.
- the connecting portion 36 of the positive electrode connection plate 33 of the other assembled battery 2 may be connected, or the connecting portion 131 of the negative electrode connecting piece 127 of one assembled battery 2 is connected to the positive electrode of the other assembled battery 2.
- connection part 131 of the negative electrode connection piece 127 of one assembled battery 2 and the connection part 36 of the positive electrode connection plate 33 of the other assembled battery 2 are connected to produce the battery module according to this embodiment. preferable.
- the negative electrode connection plate 27 in the first and second embodiments is used instead of the negative electrode connection piece 127 and the negative electrode connection member, and the positive electrode instead of the positive electrode connection plate 33 is used.
- FIG. 9 is a perspective view of the assembled battery 2 according to Embodiment 4 of the present invention.
- the positive electrode connection structure in the assembled battery 2 is different from that of the third embodiment. In the following, differences from the third embodiment will be mainly described.
- a positive electrode connection piece 133 is connected to each of the sealing plates 13, and the positive electrode connection piece 133 is a connection member (not shown) extending in the arrangement direction D ⁇ b> 1 of the cylindrical batteries 3. Are connected to each other in parallel.
- the positive electrode connecting piece 133 is formed by cutting the positive electrode connecting plate 33 in the first to third embodiments between adjacent through holes 34. In other words, when the positive electrode connection piece 133 in the present embodiment is continuously formed integrally in the arrangement direction D1 of the cylindrical battery 3, the positive electrode connection plate 33 in the first to third embodiments is obtained. Therefore, the positive electrode connection piece 133 has a connection portion 136 corresponding to the connection portion 36 in the first to third embodiments.
- the negative electrode connecting piece 127, the insulating member 32 (not shown), the positive electrode connecting piece 133, and the connecting member 35 are arranged at predetermined positions in a state where the cylindrical battery 3 is a single body. Then, the assembled battery 2 can be assembled.
- the components of the assembled battery 2 (the cylindrical battery 3, the negative electrode connection piece 127, the positive electrode connection piece 133, and the connecting member 35) are single parts, the negative electrode connection piece 127 and the like are sealed.
- the assembled battery 2 can be assembled without being short-circuited with the plate 13. Therefore, the assembled battery 2 can be assembled at high speed while maintaining the assembly accuracy.
- the negative electrode connecting member (see the third embodiment) of one assembled battery 2 and the connecting member of the other assembled battery 2 may be connected, or one set
- the connecting portion 131 of the negative electrode connecting piece 127 of the battery 2 may be connected to the connecting member of the other assembled battery 2, or the connecting portion 136 of the positive electrode connecting piece 133 of one assembled battery 2 may be connected to the other set.
- the battery 2 may be connected to the negative electrode connecting member.
- the negative electrode connection pieces 127 of one assembled battery 2 are connected in parallel to each other via the connection member of the other assembled battery 2, and the other assembled battery 2 of the other assembled battery 2 is connected via the connection member.
- the seal plate 13 is connected in series.
- the positive electrode connection pieces 133 of one assembled battery 2 are connected in parallel to each other via the negative electrode connection member of the other assembled battery 2, and the negative electrode connection member It is connected in series to the battery case 10 of the other assembled battery 2. Therefore, it is preferable to connect the connecting portion 131 of the negative electrode connection piece 127 of one assembled battery 2 and the connection member of the other assembled battery 2 to produce a battery module, or to form the positive electrode of one assembled battery 2.
- the battery module is preferably manufactured by connecting the connecting portion 136 of the connecting piece 133 and the negative electrode connecting member of the other assembled battery 2.
- connection part 31 of the negative electrode connection plate 27 or the connection part 131 of the negative electrode connection piece 127 is more than the connection part 36 of the positive electrode connection plate 33 or the connection part 136 of the positive electrode connection piece 133. It may be located on the lower side. Further, the connection part 31 of the negative electrode connection plate 27 or the connection part 131 of the negative electrode connection piece 127 may be located above the sealing plate 13 in the height direction of the battery case 10, or the sealing plate 13. And may be located in substantially the same plane. Similarly, the connection part 36 of the positive electrode connection plate 33 or the connection part 136 of the positive electrode connection piece 133 may be located above the sealing plate 13 in the height direction of the battery case 10, or the sealing plate 13.
- connection part 31 of the negative electrode connection plate 27 or the connection part 131 of the negative electrode connection piece 127 of one assembled battery 2 is the connection part 36 of the positive electrode connection plate 33 or the connection part of the positive electrode connection piece 133 of the other assembled battery 2. What is necessary is just to determine the positional relationship of the connection part 31 or the connection part 131, and the connection part 36 or the connection part 136 in the height direction of the battery case 10 so that it can contact
- the shape of the negative electrode connecting member in Embodiments 3 to 4 is not particularly limited.
- the negative electrode connecting member only has to extend in the arrangement direction D1 of the cylindrical batteries 3, and may be a plate-like member or a rod-like member. The same can be said for the connection member in the fourth embodiment.
- the negative electrode connection plate 27 or the negative electrode connection piece 127 may be a nickel plate having a thickness of, for example, 0.25 mm. Further, the thickness of the negative electrode connection plate 27 or the negative electrode connection piece 127 is preferably equal to or less than the thickness of the battery case 10, whereby the negative electrode connection plate 27 or the negative electrode connection piece 127 is welded to the battery case 10. Moreover, the welding stress to the battery case 10 can be reduced.
- the positive electrode connection plate 33 or the positive electrode connection piece 133 may be a copper plate having a thickness of 1 mm, for example. Moreover, it is preferable that the positive electrode connection plate 33 or the positive electrode connection piece 133 is thicker than the battery case 10, whereby the resistance value can be reduced. The same applies to the third to fourth embodiments.
- the connecting member 35 may be a nickel plate having a thickness of, for example, 0.25 mm, and is preferably thinner than the positive electrode connection plate 33 or the positive electrode connection piece 133. Thereby, the connecting member 35 can be welded to the positive electrode connection plate 33 or the positive electrode connection piece 133 without opening a hole in the positive electrode connection plate 33 or the positive electrode connection piece 133. Therefore, productivity of the assembled battery 2 and the battery module can be improved. For the same reason, the connecting member 35 is preferably thinner than the sealing plate 13.
- the insulating member 32 has a thickness that can avoid contact between the negative electrode connection plate 27 or the negative electrode connection piece 127 and the positive electrode connection plate 33 or the positive electrode connection piece 133. And an insulating plate or an insulating film may be used.
- the number of the cylindrical batteries 3 constituting the assembled battery 2 is not limited to 20, and the number of the assembled batteries 2 constituting the battery module is limited to 7. Not. In the first to fourth embodiments, since the effect of improving the productivity of the assembled battery 2 and the battery module can be obtained, the larger the number of cylindrical batteries 3 constituting the assembled battery 2, the more effective. The larger the number of the assembled batteries 2 constituting the module, the more effective.
- a prismatic battery can be used instead of the cylindrical battery 3.
- the electrode group of the rectangular battery may be configured by winding or laminating a positive electrode plate and a negative electrode plate via a separator.
- the present invention is useful for a power source for portable electronic devices, a power source for driving automobiles, a power source for supplying household power, and the like.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Description
図1は、本発明の実施形態1に係る電池モジュールの斜視図であり、図2は、図1に示す電池モジュールの平面図である。図3は、本実施形態に係る組電池2の断面図であり、図4は、組電池2における負極の接続構造を示す斜視図であり、図5は、組電池2における正極の接続構造を示す斜視図である。図6は、本実施形態に係る電池モジュールの断面図である。
図7は、本発明の実施形態2に係る組電池2の断面図である。本実施形態では、絶縁板及び正極用接続板の形状が上記実施形態1とは異なる。以下では、上記実施形態1とは異なる点を主に説明する。
図8は、本発明の実施形態3に係る組電池2の斜視図である。本実施形態では、組電池2における負極の接続構造が上記実施形態1とは異なる。以下では、上記実施形態1とは異なる点を主に説明する。
図9は、本発明の実施形態4に係る組電池2の斜視図である。本実施形態では、組電池2における正極の接続構造が上記実施形態3とは異なる。以下では、上記実施形態3とは異なる点を主に説明する。
上記実施形態1~4では、負極用接続板27の接続部31又は負極用接続片127の接続部131は、正極用接続板33の接続部36又は正極用接続片133の接続部136よりも下側に位置していても良い。また、負極用接続板27の接続部31又は負極用接続片127の接続部131は、電池ケース10の高さ方向において、封口板13よりも上側に位置していても良いし、封口板13と略同一平面内に位置していても良い。同じく、正極用接続板33の接続部36又は正極用接続片133の接続部136は、電池ケース10の高さ方向において、封口板13よりも上側に位置していても良いし、封口板13と略同一平面内に位置していても良い。一方の組電池2の負極用接続板27の接続部31又は負極用接続片127の接続部131が他方の組電池2の正極用接続板33の接続部36又は正極用接続片133の接続部136に当接可能となるように、電池ケース10の高さ方向における接続部31又は接続部131と接続部36又は接続部136との位置関係を決めれば良い。
10 電池ケース
13 封口板(正極)
27 負極用接続板 (電極板)
32 絶縁部材 (絶縁体)
33 正極用接続板 (電極板)
35 連結部材 (接続板)
127 負極用接続片
133 正極用接続片
Claims (13)
- 複数の電池が配列されて構成された組電池であって、
前記電池は、電池ケースの開口部を封止する封口板が互いに同じ方向を向いて配置されており、
前記電池の第1極の端子は、それぞれ、封口板側に配設された第1極の接続片に接続されており、
前記電池の第2極の端子は、それぞれ、前記封口板側に配設された第2極の接続片に接続されており、
前記第1極の接続片は、互いに並列接続されており、
前記第2極の接続片は、互いに並列接続されており、
前記第1極の接続片と前記第2極の接続片とは、絶縁部材を介して前記封口板の上に積層されている組電池。 - 請求項1に記載の組電池であって、
前記第1極の接続片及び前記第2極の接続片の少なくとも一方の極の接続片が前記電池の配列方向において連続して一体形成されて構成された接続板を備えている組電池。 - 請求項1に記載の組電池であって、
前記第1極の端子は、金属缶からなる電池ケースであり、
前記第1極の接続片は、前記電池ケースに溶接されている組電池。 - 請求項3に記載の組電池であって、
前記第1極の接続片の厚みは、前記電池ケースの厚み以下である組電池。 - 請求項1に記載の組電池であって、
前記第2極の端子は、前記封口板であり、
前記第2極の接続片は、前記封口板に溶接されている組電池。 - 請求項5に記載の組電池であって、
前記第2極の接続片には、前記封口板を露出する貫通孔が形成されており、
前記第2極の接続片は、前記貫通孔を通って設けられた連結部材を介して、前記封口板に接続されている組電池。 - 請求項6に記載の組電池であって、
前記連結部材は、前記第2極の接続片よりも薄い組電池。 - 請求項5に記載の組電池であって、
前記第2極の接続片は、前記電池ケースよりも厚い組電池。 - 請求項1に記載の前記組電池が複数配列されて構成された電池モジュールであって、
隣り合う前記組電池では、一方の前記組電池の前記第1極の接続片と他方の前記組電池の前記第2極の接続片とが直列接続されている電池モジュール。 - 請求項9に記載の電池モジュールであって、
前記一方の組電池の前記第1極の接続片と前記他方の組電池の前記第2極の接続片とは、前記組電池の配列方向において互いに逆向きに延びている電池モジュール。 - 請求項9に記載の電池モジュールであって、
前記一方の組電池の前記第1極の接続片は、接続部材を介して互いに並列接続されており、
前記他方の組電池の前記第2極の接続片は、前記接続部材を介して、互いに並列接続されているとともに前記一方の組電池の前記第1極の接続片に直列接続されている電池モジュール。 - 請求項9に記載の電池モジュールであって、
前記一方の組電池は、前記第1極の接続片が前記電池の配列方向において連続して一体形成されて構成された第1極の接続板を有し、
前記他方の組電池の前記第2極の接続片は、前記第1極の接続板を介して、互いに並列接続されているとともに前記一方の組電池の前記第1極の接続片に直列接続されている電池モジュール。 - 請求項9に記載の電池モジュールであって、
前記一方の組電池は、前記第1極の接続片が前記電池の配列方向において連続して一体形成されて構成された第1極の接続板を有し、
前記他方の組電池は、前記第2極の接続片が前記電池の配列方向において連続して一体形成されて構成された第2極の接続板を有し、
前記第1極の接続板と前記第2極の接続板とは、直列接続されている電池モジュール。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010550966A JP4749514B2 (ja) | 2009-07-17 | 2010-06-28 | 組電池及び電池モジュール |
CN2010800029809A CN102197512A (zh) | 2009-07-17 | 2010-06-28 | 组电池以及电池模块 |
US13/119,649 US8197962B2 (en) | 2009-07-17 | 2010-06-28 | Assembled battery and battery module |
EP10799572A EP2339667A1 (en) | 2009-07-17 | 2010-06-28 | Battery and battery module |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009-168520 | 2009-07-17 | ||
JP2009168520 | 2009-07-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011007508A1 true WO2011007508A1 (ja) | 2011-01-20 |
Family
ID=43449120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/004254 WO2011007508A1 (ja) | 2009-07-17 | 2010-06-28 | 組電池及び電池モジュール |
Country Status (6)
Country | Link |
---|---|
US (1) | US8197962B2 (ja) |
EP (1) | EP2339667A1 (ja) |
JP (1) | JP4749514B2 (ja) |
KR (1) | KR20110042376A (ja) |
CN (1) | CN102197512A (ja) |
WO (1) | WO2011007508A1 (ja) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012120774A1 (ja) * | 2011-03-10 | 2012-09-13 | 三洋電機株式会社 | 組電池および電池接続方法 |
JP2015141800A (ja) * | 2014-01-28 | 2015-08-03 | ダイキョーニシカワ株式会社 | 電池モジュール |
WO2019131359A1 (ja) * | 2017-12-26 | 2019-07-04 | パナソニックIpマネジメント株式会社 | 電池モジュール |
WO2019244392A1 (ja) * | 2018-06-22 | 2019-12-26 | パナソニックIpマネジメント株式会社 | 電池モジュール |
US12100847B2 (en) | 2020-12-29 | 2024-09-24 | Lg Energy Solution, Ltd. | Cylindrical battery cell, and battery pack and vehicle comprising same |
JP7634180B2 (ja) | 2019-07-31 | 2025-02-21 | パナソニックIpマネジメント株式会社 | 電池 |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012063381A1 (ja) * | 2010-11-08 | 2012-05-18 | パナソニック株式会社 | 電池モジュールと電池モジュール溶接方法 |
US9768425B2 (en) * | 2013-10-31 | 2017-09-19 | Panasonic Intellectual Property Management Co., Ltd. | Battery module |
DE102013112395A1 (de) | 2013-11-12 | 2015-05-13 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Batterieeinheit |
US9350127B2 (en) * | 2014-03-24 | 2016-05-24 | Ford Global Technologies, Llc | Self-locating busbar assembly and alignment method |
US20160172653A1 (en) * | 2014-12-15 | 2016-06-16 | Nec Energy Solutions, Inc. | Battery containment |
KR102123674B1 (ko) * | 2017-01-19 | 2020-06-16 | 주식회사 엘지화학 | 전극단자 접속 플레이트를 포함하고 있는 전지팩 |
KR102196266B1 (ko) * | 2017-04-03 | 2020-12-29 | 주식회사 엘지화학 | 원통형 배터리 셀의 방열 구조 |
KR102410972B1 (ko) * | 2017-09-22 | 2022-06-20 | 삼성에스디아이 주식회사 | 배터리 팩 |
US10886580B2 (en) * | 2018-08-28 | 2021-01-05 | Rivian Ip Holdings, Llc | Cylindrical battery cell packaging and cooling configuration |
DE102018221194A1 (de) * | 2018-12-07 | 2020-06-10 | Robert Bosch Gmbh | Kontaktierung für Batteriezellen sowie Batteriesystem |
US20220255121A1 (en) * | 2019-07-31 | 2022-08-11 | Panasonic Intellectual Property Management Co., Ltd. | Battery |
DE102020114648A1 (de) * | 2020-06-02 | 2021-12-02 | Rwe Generation Se | Oberschalenfreies Batteriezellenmodul |
CN112038521B (zh) * | 2020-08-18 | 2024-10-29 | 嘉兴模度新能源有限公司 | 一种电池同向排列并成排串联的电池模块 |
DE102021106344A1 (de) | 2021-03-16 | 2022-09-22 | Bayerische Motoren Werke Aktiengesellschaft | Rundzellenbatteriemodul, aufweisend Rundzellenbatterieeinheiten und eine Zellverbindungseinrichtung, Fahrzeug und Zellverbindungseinrichtung |
CN114243230B (zh) * | 2022-02-23 | 2022-05-31 | 深圳市格林晟科技有限公司 | 一种电芯极耳焊接汇流方法及设备 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH027862A (ja) | 1987-10-13 | 1990-01-11 | Magneti Marelli Electrical Ltd | ロータリダイナモ電気機械 |
JPH027862U (ja) * | 1988-06-29 | 1990-01-18 | ||
JP2002015716A (ja) * | 2000-06-30 | 2002-01-18 | Sanyo Electric Co Ltd | バッテリーパック |
JP2006190611A (ja) * | 2005-01-07 | 2006-07-20 | Sanyo Electric Co Ltd | 電源装置 |
JP2008204986A (ja) * | 2007-02-16 | 2008-09-04 | Matsushita Electric Ind Co Ltd | 蓄電ユニット |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3759872B2 (ja) * | 2000-05-12 | 2006-03-29 | 本田技研工業株式会社 | セルモジュール |
US8194393B2 (en) | 2007-02-16 | 2012-06-05 | Panasonic Corporation | Capacitor unit and its manufacturing method |
-
2010
- 2010-06-28 US US13/119,649 patent/US8197962B2/en not_active Expired - Fee Related
- 2010-06-28 JP JP2010550966A patent/JP4749514B2/ja not_active Expired - Fee Related
- 2010-06-28 EP EP10799572A patent/EP2339667A1/en not_active Withdrawn
- 2010-06-28 CN CN2010800029809A patent/CN102197512A/zh active Pending
- 2010-06-28 WO PCT/JP2010/004254 patent/WO2011007508A1/ja active Application Filing
- 2010-06-28 KR KR1020117006221A patent/KR20110042376A/ko active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH027862A (ja) | 1987-10-13 | 1990-01-11 | Magneti Marelli Electrical Ltd | ロータリダイナモ電気機械 |
JPH027862U (ja) * | 1988-06-29 | 1990-01-18 | ||
JP2002015716A (ja) * | 2000-06-30 | 2002-01-18 | Sanyo Electric Co Ltd | バッテリーパック |
JP2006190611A (ja) * | 2005-01-07 | 2006-07-20 | Sanyo Electric Co Ltd | 電源装置 |
JP2008204986A (ja) * | 2007-02-16 | 2008-09-04 | Matsushita Electric Ind Co Ltd | 蓄電ユニット |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012120774A1 (ja) * | 2011-03-10 | 2012-09-13 | 三洋電機株式会社 | 組電池および電池接続方法 |
JPWO2012120774A1 (ja) * | 2011-03-10 | 2014-07-07 | 三洋電機株式会社 | 組電池および電池接続方法 |
JP2015141800A (ja) * | 2014-01-28 | 2015-08-03 | ダイキョーニシカワ株式会社 | 電池モジュール |
JPWO2019131359A1 (ja) * | 2017-12-26 | 2020-12-10 | パナソニックIpマネジメント株式会社 | 電池モジュール |
CN111033810A (zh) * | 2017-12-26 | 2020-04-17 | 松下知识产权经营株式会社 | 电池模块 |
WO2019131359A1 (ja) * | 2017-12-26 | 2019-07-04 | パナソニックIpマネジメント株式会社 | 電池モジュール |
JP7178593B2 (ja) | 2017-12-26 | 2022-11-28 | パナソニックIpマネジメント株式会社 | 電池モジュール |
CN111033810B (zh) * | 2017-12-26 | 2023-01-10 | 松下知识产权经营株式会社 | 电池模块 |
WO2019244392A1 (ja) * | 2018-06-22 | 2019-12-26 | パナソニックIpマネジメント株式会社 | 電池モジュール |
CN112335117A (zh) * | 2018-06-22 | 2021-02-05 | 松下知识产权经营株式会社 | 电池模块 |
CN112335117B (zh) * | 2018-06-22 | 2023-07-21 | 松下知识产权经营株式会社 | 电池模块 |
JP7634180B2 (ja) | 2019-07-31 | 2025-02-21 | パナソニックIpマネジメント株式会社 | 電池 |
US12100847B2 (en) | 2020-12-29 | 2024-09-24 | Lg Energy Solution, Ltd. | Cylindrical battery cell, and battery pack and vehicle comprising same |
Also Published As
Publication number | Publication date |
---|---|
KR20110042376A (ko) | 2011-04-26 |
CN102197512A (zh) | 2011-09-21 |
US8197962B2 (en) | 2012-06-12 |
JPWO2011007508A1 (ja) | 2012-12-20 |
US20110171515A1 (en) | 2011-07-14 |
JP4749514B2 (ja) | 2011-08-17 |
EP2339667A1 (en) | 2011-06-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4749514B2 (ja) | 組電池及び電池モジュール | |
WO2012101728A1 (ja) | 電池モジュール及びそれに用いる組電池 | |
JP4820929B2 (ja) | 電池及び電池ユニット | |
US20140220396A1 (en) | Battery pack | |
US10468647B2 (en) | Battery pack | |
JP7178593B2 (ja) | 電池モジュール | |
JP2006066322A (ja) | 組電池及びモジュール電池 | |
WO2014125806A1 (ja) | 電池ブロック | |
JP2010211950A (ja) | 組電池、その製造方法および組電池用筐体 | |
CN108391453B (zh) | 用于软包电池的穿墙集流体 | |
CN110892547B (zh) | 机械固定的穿壁集流器 | |
EP2874204B1 (en) | Battery assembly | |
US9419261B2 (en) | Battery pack | |
KR100599714B1 (ko) | 이차 전지 | |
KR20180093330A (ko) | 전극단자 접속 플레이트를 포함하고 있는 전지팩 | |
JP2008123758A (ja) | 電池及び電池パック |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201080002980.9 Country of ref document: CN |
|
ENP | Entry into the national phase |
Ref document number: 2010550966 Country of ref document: JP Kind code of ref document: A |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10799572 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2010799572 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 20117006221 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13119649 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |