CN106058111B - A kind of thermal balance lithium ion battery packet - Google Patents
A kind of thermal balance lithium ion battery packet Download PDFInfo
- Publication number
- CN106058111B CN106058111B CN201610656078.8A CN201610656078A CN106058111B CN 106058111 B CN106058111 B CN 106058111B CN 201610656078 A CN201610656078 A CN 201610656078A CN 106058111 B CN106058111 B CN 106058111B
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- China
- Prior art keywords
- battery
- busbar
- insulation board
- heat
- total
- 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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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 31
- 238000009413 insulation Methods 0.000 claims abstract description 63
- 239000000463 material Substances 0.000 claims abstract description 29
- 239000004020 conductor Substances 0.000 claims description 25
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 24
- 229910052759 nickel Inorganic materials 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- 239000000741 silica gel Substances 0.000 claims description 11
- 229910002027 silica gel Inorganic materials 0.000 claims description 11
- 239000003822 epoxy resin Substances 0.000 claims description 9
- 229920000647 polyepoxide Polymers 0.000 claims description 9
- 239000004519 grease Substances 0.000 claims description 7
- 229920001296 polysiloxane Polymers 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 3
- 239000000178 monomer Substances 0.000 claims description 3
- 230000008029 eradication Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 12
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 239000004411 aluminium Substances 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000011258 core-shell material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000005439 thermosphere Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
- H01M10/6555—Rods or plates arranged between the 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a kind of thermal balance lithium ion battery packets,The battery pack includes battery pack babinet and the battery modules in battery pack babinet,The battery modules are made of multiple battery modules of laid out in parallel,The battery module is constituted by multiple square individual battery core through-thickness are stacked,It is separated with insulation board between battery module,Insulation board and the shell for the single battery core for constituting battery module fit closely,Thermal hole is provided on insulation board,Paste insulating heat-conduction material is filled in thermal hole,The battery modules are cuboid battery modules,The heat-conducting layer fitted closely with battery modules surface is equipped in battery modules outer surface,Insulation board is equipped on the outside of heat-conducting layer,Multiple thermal holes are provided on insulation board,Paste insulating heat-conduction material is filled in thermal hole,The thermal balance lithium ion battery packet internal heat can be rapidly achieved equilibrium,The operating voltage of each single battery core is balanced in battery module,The heat dissipation of battery pack,Shockproof effect is good.
Description
Technical field
The present invention relates to battery group technical field more particularly to a kind of lithium ion batteries of internal heat fast uniform
Packet.
Background technology
Lithium ion battery has high-energy density, high output voltage, high-output power, fast charging and discharging and the low public affairs of green
The advantages that evil.With popularizing for green energy resource, will be used wider and wider for lithium ion battery is general.In order to meet large capacity and height
The requirement of voltage needs several single battery cores first carrying out parallel connection, forms capacity lithium-ion battery module, then will be several big
Capacity lithium ion battery block coupled in series is at high voltage large capcity lithium ion battery module, high voltage large capcity lithium ion battery module
With electronic unit, the interface of protective device, other external systems（Such as high pressure, auxiliary low pressure, communication）And shell composition lithium from
Sub- battery pack.
Lithium ion battery packet is usually made of hundreds of single battery cores, and position of each single battery core in battery pack is different,
Heat dissipation effect is inconsistent.Since, there are gap, the thermal resistance of air is larger between each single battery core in battery module.Battery module it
Between need insulating materials to separate when being connected, between module to prevent short circuit, the thermal resistance of insulating materials is equally larger.Air with absolutely
Edge material prevents heat fast uniform in battery pack, causes battery modules internal difference in temperature big, influences the consistent of entire battery pack
Property and reliability.
Since the internal resistance of power lithium-ion battery is milliohm rank, the resistance value difference of conductive connecting piece will influence battery module
The current distribution of interior each single battery core causes the operating voltage of single battery core in the same battery module difference, this difference occur
The different temperature difference that can also amplify between single battery core, and then influence the consistency and reliability of entire battery pack.
Invention content
Technical problems to be solved by the inivention are：In order to overcome above-mentioned the deficiencies in the prior art, it is equal to provide a kind of heat
Heng Lilizi electricity Chi Bao, the thermal balance lithium ion battery packet internal heat can be rapidly achieved equilibrium, each monomer in battery module
The operating voltage of battery core is balanced, and the heat dissipation of battery pack, shockproof effect are good.
The technical solution adopted for solving the technical problem：A kind of thermal balance lithium ion battery packet, including battery pack babinet and
Battery modules in battery pack babinet, the battery modules are made of multiple battery modules of laid out in parallel, the electricity
Pond module is constituted by multiple square individual battery core through-thickness are stacked, is separated with insulation board between battery module, insulation board
It is fitted closely with the shell for the single battery core for constituting battery module, thermal hole is provided on insulation board, is filled in thermal hole
Paste insulating heat-conduction material.
As an improvement of the present invention：The battery modules be cuboid battery modules, battery modules outer surface be equipped with
The heat-conducting layer that battery modules surface fits closely, is equipped with insulation board on the outside of heat-conducting layer, and multiple lead is provided on insulation board
Hot hole, is filled with paste insulating heat-conduction material in thermal hole, on the inside of 5 face of remaining of Battery case in addition to upper cover plate and battery
Insulation board on module corresponding surface fits closely.
Further, the gross area of thermal hole is not less than the 50% of insulation plate suqare on insulation board.
Further, thermal hole is round hole, a diameter of 5-20mm of thermal hole on insulation board.
Another as the present invention improves：All single battery cores in same battery module are connected in parallel, and constitute battery
All battery modules of module are connected in series with, and connection busbar, connection busbar side are equipped between adjacent battery module
It is connect with the anode of all single battery cores of a battery module, connects the other side of busbar and the institute of another battery module
There is the cathode of single battery core to connect, total anode busbar and total is additionally provided on the battery module positioned at battery modules head and the tail both ends
Negative terminal busbar, total anode busbar and total negative terminal busbar pass through the total anode of cable connection battery modules and battery modules respectively
Total negative terminal.
Further, the single battery core by the nickel sheet that is welded on pole with connect busbar, total anode busbar
Or total negative terminal busbar connection.
Further, the cable is the harness being made of the insulated conductor of more same sizes, the number of insulated conductor
Equal with the number of single battery core of battery module is constituted, one end of more insulated conductors is stacked direction along single battery core and equidistantly welds
Be connected on total anode busbar or total negative terminal busbar, the other end convergences of more insulated conductors be welded in battery modules it is total just
End or total negative terminal.
Further, the position that each insulated conductor welds on total anode busbar or total negative terminal busbar with connect monomer
Position of the nickel sheet of battery core pole on total anode busbar or total negative terminal busbar corresponds, more eradications in same harness
The equal length of edge conducting wire.
Preferred embodiment as the present invention：The insulated conductor is silica gel line, the connection busbar, total anode busbar
It is copper busbar with total negative terminal busbar.
Preferred plan as the present invention：Insulation board is epoxy resin board, and the paste insulating heat-conduction material is thermal conductive silicon
Fat, the heat-conducting layer are heat-conducting silica gel sheet.
Advantageous effect：The thermal balance lithium ion battery packet of the present invention, as a result of insulation board between battery module and structure
It is fitted closely at the shell of the single battery core of battery module, and is provided with thermal hole on insulation board, cream is filled in thermal hole
Shape insulating heat-conduction material will be provided with the insulation board of thermal hole as insulation framework, and thermal hole forms multiple heat conduction on insulation board
Channel significantly improves insulation while ensureing insulation effect between the necessary mechanical strength of insulation board and battery module
The heat-conducting effect of plate enables the heat between battery module quickly to conduct, and the heat inside battery pack is rapidly achieved equilibrium, reduces
Temperature difference between battery module, to keep the operating voltage of each single battery core in battery module more balanced, while battery pack
Heat dissipation, shockproof effect it is more preferable.It is led with what battery modules surface fitted closely as a result of being equipped in battery modules outer surface
Thermosphere, is equipped with the insulation board for being provided with thermal hole on the outside of heat-conducting layer, and paste insulating heat-conduction material is filled in thermal hole,
And make to fit closely with the insulation board on battery modules corresponding surface on the inside of 5 face of remaining of Battery case in addition to upper cover plate, paste
Insulating heat-conduction material is filled between battery module, the hole between battery modules and battery pack babinet on insulation board, and paste is exhausted
Edge Heat Conduction Material forms heat conduction network with single battery core shell, and the heat that battery modules generate is led by heat-conducting layer and paste insulation
Hot material is quickly transferred to battery pack case, is distributed into ambient enviroment by battery pack case, makes each single battery core in battery pack
Between be rapidly achieved thermal balance, moreover, the heat-conducting layer and insulation board between battery modules and battery case further improve battery
The shock resistance of packet and vibration resistance.Due to reasonably defining the gross area of thermal hole on insulation board, improving insulation board heat conduction
While effect, the mechanical strength of insulation board is taken into account, ensure that insulation effect.Due to reasonably defining heat conduction on insulation board
The shape and thermal hole size in hole, make insulation board be easier to produce and process, and the paste insulating heat-conduction material filled in thermal hole is more
Uniformly.It is connected in parallel as a result of all single battery cores in same battery module, constitutes all battery moulds of battery modules
Block is connected in series with, and connection busbar, connection busbar side and battery module are equipped between adjacent battery module
The anode connection of all single battery cores, connects the cathode of the other side of busbar and all single battery cores of another battery module
Connection, is additionally provided with total anode busbar and total negative terminal busbar, always just on the battery module positioned at battery modules head and the tail both ends
Hold busbar and total negative terminal busbar respectively by the technology of the total anode of cable connection battery modules and the total negative terminal of battery modules spy
Sign, make the more compact structure of battery modules, between battery module apart from smaller, the voltage of single battery core is also more balanced.Due to adopting
With the single battery core by the nickel sheet that is welded on pole with connect busbar, total anode busbar or total negative terminal busbar
The technical characteristic of connection not only makes the conductive effect between pole and busbar more preferable, and can also conduct pole by nickel sheet
Heat make the speed of heat balance faster, each single battery core from the shell and inner pole piece of single battery core uniform heat simultaneously
Between temperature difference smaller.It is the harness being made of the insulated conductor of more same sizes, insulated conductor as a result of the cable
Number with constitute the number of single battery core of battery module it is equal, one end of more insulated conductors is stacked direction along single battery core
It is equidistantly welded on total anode busbar or total negative terminal busbar, the other end convergence of more insulated conductors is welded in battery modules
Total anode or total negative terminal technical characteristic, keep the conductive path of each single battery core in battery module consistent, to make same electricity
The current balance of each single battery core, operating voltage are consistent in the module of pond.As a result of each insulated conductor in total anode busbar
Or the position welded on total negative terminal busbar and the nickel sheet of single battery core pole is connect in total anode busbar or total negative terminal conduction
Position on row corresponds, and the technical characteristic of the equal length of more insulated conductors in same harness makes conductive path
Length is more accurate, further reduces the length difference between each conductive path, keeps the running parameter of each single battery core more aligned,
The capacity of battery pack is more stable, and the service life is longer.It is epoxy resin board, the paste insulating heat-conductive as a result of insulation board
Material is heat-conducting silicone grease, and the heat-conducting layer is the technical characteristic of heat-conducting silica gel sheet, after so that thermal hole is filled insulating heat-conduction material
Insulation board insulation performance is unaffected, and heat conductivility is more preferable.As a result of the connection busbar, total anode busbar and
Total negative terminal busbar is the technical characteristic of copper busbar, and while ensureing conductive effect, heat conduction is more preferable, the output of battery modules
Voltage and current is more stable.
Description of the drawings
Fig. 1 is the thermal balance lithium ion battery packet surface structure schematic diagram of the present invention；
Fig. 2 be the present invention thermal balance lithium ion battery packet in battery modules outer surface insulating heat-conductive structure chart；
Fig. 3 be the present invention thermal balance lithium ion battery packet in battery modules assembling schematic diagram；
Fig. 4 insulating heat-conductive structures between the battery module of battery modules in the thermal balance lithium ion battery packet of the present invention.
Specific implementation mode
Further to illustrate the technical solution used in the present invention, below in conjunction with the preferred embodiment of the present invention and its attached
Figure is described in detail.
As shown in Figure 1, the thermal balance lithium ion battery packet of the present invention includes battery pack babinet 5.In the lid of battery pack babinet
Interface of the plate 4 equipped with electronic unit 2, protective device, other external systems（Such as high pressure, auxiliary low pressure, communication）, battery pack
Battery modules are installed in babinet, total anodes of battery modules, total negative terminal respectively with total anode 1 of battery pack case, total negative terminal 3
Connection.
As shown in Fig. 2, the battery modules are cuboid battery modules 6, it is equipped with and battery mould in battery modules outer surface
The heat-conducting layer 7 that group surface fits closely, insulation board 8 is equipped on the outside of heat-conducting layer, multiple thermal holes are provided on insulation board
9, be filled with paste insulating heat-conduction material in thermal hole, on the inside of 5 face of remaining of Battery case in addition to upper cover plate with battery mould
Group corresponding surface on insulation board fit closely, the heat-conducting layer be heat-conducting silica gel sheet, heat-conducting silica gel sheet play heat conduction with it is shockproof
Effect, the insulation board are epoxy resin board, and the paste insulating heat-conduction material is heat-conducting silicone grease.
As shown in figure 3, the battery modules 6 are made of multiple battery modules 61 of laid out in parallel, the battery module by
Multiple 611 through-thickness of square individual battery core are stacked to be constituted, and is separated with insulation board 8 between battery module, insulation board and structure
It is fitted closely at the shell of the single battery core of battery module, thermal hole 9 is provided on insulation board, paste is filled in thermal hole
Insulating heat-conduction material, the insulation board are epoxy resin board, and the paste insulating heat-conduction material is heat-conducting silicone grease.
As an improvement of the present invention, on insulation board thermal hole 50% of the gross area not less than insulation plate suqare, on insulation board
The preferably circular hole of thermal hole, a diameter of 5-20mm of thermal hole, the diameter of thermal hole is preferably 10mm.
As shown in figure 4,21 single battery cores in same battery module are connected in parallel, 7 batteries of battery modules are constituted
Block coupled in series connects, and mode arranges fixation to single battery core as shown in Figure 4, and thermal conductive silicon is filled between single battery core after fixation
Fat.It is equipped with connection 14,7 battery modules of busbar between adjacent battery module and passes through 6 connection busbar series connection, connection
Busbar side is connect with the anode of 21 single battery cores of a battery module, connects the other side and another electricity of busbar
The cathode of 21 single battery cores of pond module connects, and total anode is additionally provided on the battery module positioned at battery modules head and the tail both ends
Busbar 17 and total negative terminal busbar 11, total anode busbar are connect with the anode of all single battery cores of place battery module,
Total negative terminal busbar is connect with the cathode of all single battery cores of place battery module, total anode busbar and total negative terminal busbar
Respectively by the total anode of cable connection battery modules and the total negative terminal of battery modules, the single battery core is by being welded on pole 16
Nickel sheet 15 with connect busbar, total anode busbar or total negative terminal busbar connect, the cable is by more same sizes
The harness that constitutes of insulated conductor 12, the number of insulated conductor is equal with the composition number of single battery core of battery module, more
One end of insulated conductor is stacked direction along single battery core and is equidistantly welded on total anode busbar or total negative terminal busbar, thoroughly do away with more
The other end convergence of edge conducting wire is welded in total anode of battery modules or total negative terminal, and each insulated conductor is in total anode busbar or always
The position welded on negative terminal busbar with connect the nickel sheet of single battery core pole on total anode busbar or total negative terminal busbar
Position correspond, spacing that insulated conductor welds on busbar and spacing of the single battery core identical electrodes on busbar
It is equal, the equal length of more insulated conductors in same harness.The insulated conductor is that preferably silica gel line, the connection are led
Electricity row, total anode busbar and total negative terminal busbar are preferably copper busbar.
Particularly, if being contacted closely between single battery core shell, it is not required to filling heat-conducting silicone grease.
In the present embodiment, single battery core is the rectangular aluminum hull battery cores of 1865130A, and every 21 single battery cores are simultaneously unified into one
Battery module, 7 battery modules are connected into a battery modules.In the present embodiment, paste Heat Conduction Material is a kind of insulating heat-conductive
Silicone grease, model Katy reach K-8510.Insulation board between battery module is 0.5mm thickness epoxy resin boards, and size can be according to design
It is required that cutting.Nickel sheet is T26*W8*H0.2mm nickel straps.Connection busbar is copper busbar, and thickness 0.5mm, size can basis
Design requirement is cut.Insulated conductor is silica gel line, model 16AWG.Heat-conducting layer is heat-conducting silica gel sheet, and thickness 2mm, size can
It is cut according to design requirement.Insulation board between battery modules and battery pack babinet is epoxy resin board, thickness 1mm, size
It can be cut according to design requirement.The material of battery pack case is aluminium, thickness 1.2mm.
The thermal coefficient of the heat conduction associated materials arrived involved in the present invention is as follows：
| Title | Material | Model | Thermal coefficient W/mk |
| 1 shell of battery core battery core | Aluminium | 3003 | 237 |
| Paste insulating heat-conduction material 2 | Heat-conducting silicone grease | Katy reaches K-8510 | 1.8 |
| Insulating materials 4 | Epoxy resin board | 0.5mm | 0.12 |
| Heat-conducting layer 9 | Heat-conducting silica gel sheet | 2.0mm | 1.5 |
| Insulating materials 10 | Epoxy resin board | 1mm | 0.12 |
| Battery pack case 11 | Aluminium | 5052 | 138 |
| Air（Normal temperature and pressure） | 0.026 |
In the present invention, the single battery core arrangement mode for forming each battery module of battery modules is consistent；The same battery
The nickel sheet specification drawn in each single battery core identical electrodes in module is consistent；Each single battery core identical electrodes in battery module
The connection sheet of upper extraction is consistent with the connection type of busbar；The total anode of battery modules, is always born total negative terminal to the total anode of battery pack
A plurality of connecting line is drawn at end, and each single battery core of the total anode of battery modules is to each connection wire gauge sizes one of the total anode of battery pack
It causes, each connection wire gauge sizes of each single battery core of the total negative terminal of battery modules to the total negative terminal of battery pack are consistent.
Insulation board in the present invention can also use the insulation board of the other materials met the requirements, such as：PC plate；Heat-conducting layer
The flexible thermally conductive sheet of other tools can also be used, such as：Polycarbonate-based non-bromine flame-retardant insulating film；The paste insulating heat-conduction material
Other creamy materials with good heat conductive and insulation performance can also be used, such as：Organic silicon potting adhesive；Busbar can also
Select it is other meet conductive, welding, it is anti-oxidation require metallic conduction to arrange, such as：Aluminium is arranged.
The above for those of ordinary skill in the art can according to the technique and scheme of the present invention and technology
Other various corresponding change and deformations are made in design, and all these change and distortions should all belong to the claims in the present invention
Protection domain.
Claims (10)
1. a kind of thermal balance lithium ion battery packet, including battery pack babinet and the battery modules in battery pack babinet, institute
It states battery modules to be made of multiple battery modules of laid out in parallel, the battery module is by multiple square individual battery cores along thickness side
To stacked composition, it is characterized in that：It is separated with insulation board between battery module, insulation board and the single battery core for constituting battery module
Shell fit closely, thermal hole is provided on insulation board, paste insulating heat-conduction material is filled in thermal hole.
2. thermal balance lithium ion battery packet according to claim 1, it is characterized in that：The battery modules are cuboid battery
Module is equipped with the heat-conducting layer fitted closely with battery modules surface in battery modules outer surface, is equipped on the outside of heat-conducting layer
Insulation board, is provided with multiple thermal holes on insulation board, paste insulating heat-conduction material is filled in thermal hole, Battery case is except upper
It is fitted closely with the insulation board on battery modules corresponding surface on the inside of remaining 5 face outside cover board.
3. thermal balance lithium ion battery packet according to claim 1 or 2, it is characterized in that：Total face of thermal hole on insulation board
50% of product not less than insulation plate suqare.
4. thermal balance lithium ion battery packet according to claim 3, it is characterized in that：Thermal hole is round hole on insulation board,
A diameter of 5-20mm of thermal hole.
5. thermal balance lithium ion battery packet according to claim 1, it is characterized in that：All monomers in same battery module
Battery core is connected in parallel, and all battery modules for constituting battery modules are connected in series with, and connection is equipped between adjacent battery module
Busbar, connection busbar side are connect with the anode of all single battery cores of a battery module, connect the another of busbar
Side is connect with the cathode of all single battery cores of another battery module, on the battery module positioned at battery modules head and the tail both ends
It is additionally provided with total anode busbar and total negative terminal busbar, total anode busbar and total negative terminal busbar pass through cable connection electricity respectively
The total anode of pond module and the total negative terminal of battery modules.
6. thermal balance lithium ion battery packet according to claim 5, it is characterized in that：The single battery core is by being welded on pole
Nickel sheet on column is connected with busbar, total anode busbar or total negative terminal busbar is connect.
7. thermal balance lithium ion battery packet according to claim 6, it is characterized in that：The cable is by more same sizes
The harness that constitutes of insulated conductor, the number of insulated conductor is equal with the number of single battery core of battery module is constituted, more eradications
One end of edge conducting wire is stacked direction along single battery core and is equidistantly welded on total anode busbar or total negative terminal busbar, thoroughly does away with edge more
The other end convergence of conducting wire is welded in total anode of battery modules or total negative terminal.
8. thermal balance lithium ion battery packet according to claim 7, it is characterized in that：Each insulated conductor is in total anode busbar
Or the position welded on total negative terminal busbar and the nickel sheet of single battery core pole is connect in total anode busbar or total negative terminal conduction
Position on row corresponds, the equal length of more insulated conductors in same harness.
9. thermal balance lithium ion battery packet according to claim 8, it is characterized in that：The insulated conductor is silica gel line, institute
It is copper busbar to state connection busbar, total anode busbar and total negative terminal busbar.
10. thermal balance lithium ion battery packet according to claim 2, it is characterized in that：Insulation board is epoxy resin board, described
Paste insulating heat-conduction material is heat-conducting silicone grease, and the heat-conducting layer is heat-conducting silica gel sheet.
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| CN201610656078.8A CN106058111B (en) | 2016-08-12 | 2016-08-12 | A kind of thermal balance lithium ion battery packet |
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| CN106058111B true CN106058111B (en) | 2018-09-11 |
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| KR102150679B1 (en) * | 2018-03-13 | 2020-09-01 | 주식회사 엘지화학 | Battery module, battery pack comprising the battery module and vehicle comprising the battery pack |
| CN109817873A (en) * | 2018-12-17 | 2019-05-28 | 浙江新创能源有限公司 | A kind of electrokinetic cell system |
| KR20240135680A (en) * | 2019-01-09 | 2024-09-11 | 비와이디 컴퍼니 리미티드 | Power battery pack and electric vehicle |
| CN110164634B (en) * | 2019-05-05 | 2024-08-23 | 中国科学院电工研究所 | Insulation structure of container high-voltage energy storage system |
| CN110600651A (en) * | 2019-10-12 | 2019-12-20 | 荣盛盟固利新能源科技有限公司 | Battery module |
| CN113921937B (en) * | 2021-09-03 | 2024-03-15 | 八方电气(苏州)股份有限公司 | Direct cooling heat dissipation lithium battery module structure |
| CN114865190A (en) * | 2022-04-11 | 2022-08-05 | 北京机电工程研究所 | Underwater device lithium battery system and underwater device |
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| JP5610309B2 (en) * | 2010-09-30 | 2014-10-22 | 株式会社Ｇｓユアサ | Single cell, battery module and battery pack |
| JP2014220131A (en) * | 2013-05-09 | 2014-11-20 | スズキ株式会社 | Restriction band structure of vehicle battery module |
| CN104600236B (en) * | 2015-01-23 | 2017-07-21 | 珠海市嘉德电能科技有限公司 | A kind of Li-ion batteries piles |
| CN204516809U (en) * | 2015-01-28 | 2015-07-29 | 合肥国轩高科动力能源股份公司 | A kind of quadrate lithium battery modular structure |
| CN105742535B (en) * | 2016-04-07 | 2018-07-03 | 陈杰 | A kind of Combined type battery case |
| CN205882031U (en) * | 2016-08-12 | 2017-01-11 | 辽宁比科新能源股份有限公司 | Thermal balance lithium ion battery package |
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Effective date of registration: 20190117 Address after: 112500 No. 01 Nanguanghui Road West, Guangming Avenue, Laosiping Industrial Park, Changtu County, Tieling City, Liaoning Province Patentee after: LIAONING BICO NEW ENERGY CO.,LTD. Address before: 112500 No. 01 Nanguanghui Road West, Guangming Avenue, Laosiping Industrial Park, Changtu County, Tieling City, Liaoning Province Co-patentee before: Wang Hongdong Patentee before: LIAONING BICO NEW ENERGY CO.,LTD. |
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