CN105514337B - Sealing cell - Google Patents
Sealing cell Download PDFInfo
- Publication number
- CN105514337B CN105514337B CN201610054212.7A CN201610054212A CN105514337B CN 105514337 B CN105514337 B CN 105514337B CN 201610054212 A CN201610054212 A CN 201610054212A CN 105514337 B CN105514337 B CN 105514337B
- Authority
- CN
- China
- Prior art keywords
- pole piece
- tab
- battery
- guide bar
- flow guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- H01M50/531—Electrode connections inside a battery casing
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
Sealing cell disclosed by the invention, by battery case, battery cover and the battery pole group being contained in battery case and battery cover composition, battery pole group is made of the overlapping anode pole piece placed and cathode pole piece, insulator is separated between anode pole piece and cathode pole piece, anode pole piece and cathode pole piece are by matrix, it tab and is formed for conductive flow guide bar, the tab and flow guide bar of anode pole piece and cathode pole piece are located at battery pole group two sides, described matrix one end is connect with tab one end, the two sides of the tab other end open up a positioning hole respectively, flow guide bar length makes flow guide bar be welded on the part on tab between two location holes less than the spacing of two location holes.The present invention has both the feature that small in size, conductive effect is good and battery capacity is big.
Description
Technical field
The present invention relates to a kind of sealing cells.
Background technique
A kind of rectangular cell as disclosed in Chinese invention patent 201310058048.3 belongs to a kind of typical closed type
Battery, including battery case, battery cover and the battery pole group being contained in battery case and battery cover, according to its attached drawing 8-16
Shown, pole group is formed by overlapping place of anode pole piece and cathode pole piece, and setting is for exhausted between anode pole piece and cathode pole piece
The diaphragm or partition of edge, anode pole piece is identical with cathode pole piece structure, all includes matrix, tab and for conductive flow guide bar,
Matrix coats active material, the side welding of matrix side and tab, and the other side of tab and deflector weld, this closed type
Battery be integrated with multilayer anode pole piece and cathode pole piece it is overlapping made of pole group, inject electrolyte in battery case, meet big
The storage of volume and electricity.
In current sealing cell market, technology is quickly grown, and battery volume constantly reduces, and is taken electricity and is constantly increased
Greatly, however, under existing sealing cell basic structure system, the volume of battery is already close to the limit, therefore, how again into
One step reduces battery volume, while guaranteeing conductive effect, or battery fan-out capability is further increased under same volume, is each
Large manufacturer's major technique R&D competetion point, therefore find to reduce battery volume or improve battery in inside battery and take the prominent of electric energy power
Breakpoint becomes the key for promoting productivity effect.
Above-mentioned sealing cell generally all by increasing pole group, expands battery volume to expand battery capacity, due to volume
Expanding production cost correspondinglys increase, it is clear that we need another Breakthrough Approaches of demand.
In view of this, the present inventor's especial manufacture goes out a kind of sealing cell with Reasonable Orientation hole site and size,
Reduce its volume while to guarantee battery capacity, thus this case generates.
Summary of the invention
The purpose of the present invention is to provide a kind of sealing cell, have both that small in size, conductive effect is good and battery holds
Measure big feature.
To achieve the goals above, technical scheme is as follows:
Sealing cell, by battery case, battery cover and the battery pole group group being contained in battery case and battery cover
Be made of at, battery pole group the overlapping anode pole piece placed and cathode pole piece, between anode pole piece and cathode pole piece between be separated with absolutely
Edge body, anode pole piece and cathode pole piece are formed by matrix, tab and for conductive flow guide bar, anode pole piece and cathode pole piece
Tab and flow guide bar be located at battery pole group two sides, described matrix one end is connect with tab one end, the two of the tab other end
Side opens up a positioning hole respectively, flow guide bar length less than the spacing of two location holes make flow guide bar be welded on tab two location holes it
Between part.
Described matrix extends weld part relative to insulator, and weld part front end and tab one end are welded, after weld part
Width is held to be less than or equal to 0.5mm, tab width is less than or equal to 5mm.
The flow guide bar height is consistent with the spacing of two adjacent tabs.
The invention has the benefit that the present invention improves battery pole group, by shortening flow guide bar length and again
The position of new settings location hole makes flow guide bar be welded on the part on tab between two location holes, makes full use of between two location holes
Space, so that the width of tab be made to reduce, and then shorten the width of battery pole group two sides, reach reduce leakproofness battery it is wide
The purpose of degree and volume, after the present invention shortens flow guide bar length, the electric current of substrate two sides equally can be from two side of tab to centre
Transmission, electric conductivity has no influence, and under the premise of the battery of same volume (width), the present invention can design increase substrate width, electricity
Capacity is expanded, and the reserve of electricity and economic benefit of sealing cell are improved.
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Detailed description of the invention
Fig. 1 is front view of the invention；
Fig. 2 is side view of the invention；
Fig. 3 is the A-A sectional view of Fig. 1；
Fig. 4 is the B-B sectional view of Fig. 2；
Fig. 5 is the front view of battery pole group of the present invention；
Fig. 6 is the side view of battery pole group of the present invention；
Fig. 7 is the A-A sectional view of Fig. 5；
Fig. 8 is enlarged drawing at the C of Fig. 7.
Fig. 9 is the structural schematic diagram of single anode pole piece or cathode pole piece in battery pole group.
Label declaration
Sealing cell 100, battery case 101, battery cover 102, battery pole group 103, anode pole piece 103a, cathode pole piece
103b, insulator 103c, matrix 104, weld part 104a, tab 105, location hole 105a, flow guide bar 106.
Specific embodiment
As shown in Figure 1 to 9, the sealing cell 100 that the present invention discloses by battery case 101, battery cover 102 and holds
The battery pole group composition being contained in battery case 104 and battery cover 102, battery pole group 103 is by the overlapping anode pole piece placed
103a and cathode pole piece 103b composition, between anode pole piece 103a and cathode pole piece 103b between be separated with insulator 103c, positive pole
Piece 103a and cathode pole piece 103b structure all include matrix 104, tab 105 and the flow guide bar 106 for conduction, described matrix
104 one end are connect with 105 one end of tab, and the two sides of 105 other end of tab open up a positioning hole 105a respectively, and flow guide bar 106 is long
The spacing less than two location hole 105a is spent, so that flow guide bar 106 is welded on the part on tab 105 between two location hole 105a.
In the present embodiment, 104 side of described matrix extends weld part 104a relative to insulator, before weld part 104a
End is welded with 105 one end of tab, and weld part 104a rear width is less than or equal to 0.5mm, and tab width is less than or equal to 5mm.This example
The middle tab width used is 5mm, weld part rear width 0.5mm, after flow guide bar 106 is embedded in caulking groove, compared to traditional sealing
Type battery volume of the present invention greatly reduces.
106 height of flow guide bar is identical as the two neighbouring spacing of tab 105, fills flow guide bar 106 just
Between two anode plate 103a or two negative plates 103b, be conducive to the integrally-built stability of battery pole group 103.
The present invention makes the weldering of flow guide bar 106 by shortening 106 length of flow guide bar and resetting the position of location hole 105a
The part on tab 105 between two location hole 105a is connect, the space between two location hole 105a is made full use of, to make tab
Width reduce, and then shorten the width of 103 two sides of battery pole group, reach the mesh for reducing leakproofness cell widths and volume
, after the present invention shortens 106 length of flow guide bar, the electric current of substrate two sides equally can be conductive from two side of tab to intermediate conveyor
Property have no influence, under the premise of the battery of same volume (width), the present invention, which can design, increases 104 width of substrate, and capacitance obtains
To expand, the reserve of electricity and economic benefit of sealing cell are improved.
The above is only specific embodiments of the present invention, not to the restriction of protection scope of the present invention.All setting according to this case
The equivalent variations that meter thinking is done, each falls within the protection scope of this case.
Claims (3)
1. sealing cell is made of battery case, battery cover and the battery pole group being contained in battery case and battery cover,
Battery pole group is made of the overlapping anode pole piece placed and cathode pole piece, between anode pole piece and cathode pole piece between be separated with insulation
Body, anode pole piece and cathode pole piece are formed by matrix, tab and for conductive flow guide bar, anode pole piece and cathode pole piece
Tab and flow guide bar are located at battery pole group two sides, and described matrix one end is connect with tab one end, it is characterised in that: tab is another
The two sides of one end open up a positioning hole respectively, and flow guide bar length is welded on flow guide bar two on tab less than the spacing of two location holes
Part between location hole.
2. sealing cell as described in claim 1, it is characterised in that: described matrix extends welding relative to insulator
Portion, weld part front end and tab one end are welded, and weld part rear width is less than or equal to 0.5mm, and tab width is less than or equal to 5mm.
3. sealing cell as described in claim 1, it is characterised in that: the spacing of flow guide bar height tab adjacent with two
It is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610054212.7A CN105514337B (en) | 2016-01-27 | 2016-01-27 | Sealing cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610054212.7A CN105514337B (en) | 2016-01-27 | 2016-01-27 | Sealing cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105514337A CN105514337A (en) | 2016-04-20 |
| CN105514337B true CN105514337B (en) | 2018-12-14 |
Family
ID=55722152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610054212.7A Active CN105514337B (en) | 2016-01-27 | 2016-01-27 | Sealing cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105514337B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106784574A (en) * | 2016-12-22 | 2017-05-31 | 中科泰能高铭科技发展有限公司 | A kind of square bar housing battery and its assemble the module of battery system |
| CN106549184B (en) * | 2016-12-22 | 2024-02-27 | 中科泰能高铭科技发展有限公司 | Square battery with novel current conducting structure and manufacturing method |
| CN113661608A (en) * | 2020-12-22 | 2021-11-16 | 宁德新能源科技有限公司 | Electrochemical device and electricity utilization device |
| CN113113736B (en) * | 2021-05-11 | 2024-02-27 | 福建卫东新能源股份有限公司 | Square battery and manufacturing device and method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102130365A (en) * | 2011-01-30 | 2011-07-20 | 康图强 | Laminated type lithium battery core body with extremely high bearing capacity and packaging technique |
| CN103137937A (en) * | 2013-02-25 | 2013-06-05 | 四川万凯丰稀土新能源科技有限公司 | Rectangular battery and manufacturing method thereof |
| CN203179974U (en) * | 2013-02-25 | 2013-09-04 | 四川万凯丰稀土新能源科技有限公司 | Square battery |
| CN205508930U (en) * | 2016-01-27 | 2016-08-24 | 福建卫东新能源有限公司 | Sealed battery |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4504600B2 (en) * | 2000-11-30 | 2010-07-14 | パナソニック株式会社 | Square sealed battery and manufacturing method thereof |
-
2016
- 2016-01-27 CN CN201610054212.7A patent/CN105514337B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102130365A (en) * | 2011-01-30 | 2011-07-20 | 康图强 | Laminated type lithium battery core body with extremely high bearing capacity and packaging technique |
| CN103137937A (en) * | 2013-02-25 | 2013-06-05 | 四川万凯丰稀土新能源科技有限公司 | Rectangular battery and manufacturing method thereof |
| CN203179974U (en) * | 2013-02-25 | 2013-09-04 | 四川万凯丰稀土新能源科技有限公司 | Square battery |
| CN205508930U (en) * | 2016-01-27 | 2016-08-24 | 福建卫东新能源有限公司 | Sealed battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105514337A (en) | 2016-04-20 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| CB02 | Change of applicant information |
Address after: 364100 Lianhua Industrial Park, Gao PI Town, Yongding County, Longyan, Fujian Applicant after: Fujian Weidong new energy Limited by Share Ltd Address before: 364100 Lianhua Industrial Park, Gao PI Town, Yongding County, Longyan, Fujian Applicant before: Fujian Weidong New Energy Co., Ltd. |
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| GR01 | Patent grant |