CN220873799U - Soft package battery module - Google Patents
Soft package battery module Download PDFInfo
- Publication number
- CN220873799U CN220873799U CN202322464795.9U CN202322464795U CN220873799U CN 220873799 U CN220873799 U CN 220873799U CN 202322464795 U CN202322464795 U CN 202322464795U CN 220873799 U CN220873799 U CN 220873799U
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- China
- Prior art keywords
- battery module
- cell
- package battery
- soft package
- battery
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052802 copper Inorganic materials 0.000 claims abstract description 26
- 239000010949 copper Substances 0.000 claims abstract description 26
- 239000004033 plastic Substances 0.000 claims abstract description 20
- 229920003023 plastic Polymers 0.000 claims abstract description 20
- 239000006260 foam Substances 0.000 claims abstract description 12
- 239000002937 thermal insulation foam Substances 0.000 claims abstract description 9
- 230000017525 heat dissipation Effects 0.000 claims description 18
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims 1
- 229920005830 Polyurethane Foam Polymers 0.000 abstract description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 5
- 239000011496 polyurethane foam Substances 0.000 abstract description 5
- 229910052710 silicon Inorganic materials 0.000 abstract description 5
- 239000010703 silicon Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 229920000642 polymer Polymers 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 230000010354 integration Effects 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- Battery Mounting, Suspending (AREA)
Abstract
The utility model provides a soft package battery module, which comprises a plurality of stacked cell structures and a protection structure; the top of each of the plurality of stacked cell structures is provided with a cell copper bar, and each cell structure is connected in series and parallel with the wire harness through the cell copper bars; the outer layer of the cell structure is provided with heat insulation foam, and the inside of the heat insulation foam is lined with expansion foam. By adopting the silicon foam with lower heat transfer coefficient and the polyurethane foam for matching use, the silicon foam blocks the heat conduction of adjacent batteries because of the lower heat transfer coefficient, and the polyurethane foam absorbs the pressure caused by the expansion of the batteries, so that the thermal runaway protection effect of the soft-package battery module is improved, and the overall size of the soft-package battery module is ensured; the safety is arranged in the soft package battery module, so that the integrated design of the soft package battery module is optimized; the wire harness of the soft package battery module is fixed in the arch structure of the plastic frame, and the stability of the wire harness is improved to a certain extent.
Description
Technical Field
The utility model relates to the technical field of energy storage battery modules, in particular to a soft package battery module.
Background
The pouch cell does not have a more rigid outer shell than square and cylindrical cells, but is surrounded by a layer of softer polymer. In the existing soft package battery module, multiple layers of soft package batteries are stacked and restrained by a plastic frame, and aluminum heat dissipation plates are arranged between the soft package batteries. The two ends of the module are clamped by metal pieces, and the whole module is connected and fixed at four corners through long screws. When the modules are installed and connected on site, a fuse is installed at the connecting part between the modules to play a role of overload protection. The prior art CN110289376A is a soft package battery module, which comprises a module bottom plate and a battery unit, wherein the battery unit comprises two soft package electric cores which are arranged in parallel and a fixed bracket for fixing the soft package electric cores, a fireproof insulating heat-insulating layer is arranged between the two soft package electric cores, a heat-conducting aluminum plate is arranged on the outer side of the fixed bracket and is clung to the soft package electric cores, and an insulating protective film is clung to the outer side of the heat-conducting aluminum plate; the module bottom plate is provided with a groove matched with the fixing support and the heat conduction aluminum plate in a clamping mode, and the bottom of the heat conduction aluminum plate is fixed with the module bottom plate through heat conduction glue. The problem in the prior art is that the battery cell of the soft package battery module is easy to expand because the shell is wrapped by softer polymer in the charging and discharging process; the integrated integration of the soft package battery module is low, and additional fuses and relevant damping devices are required to be additionally arranged, so that the difficulty is increased in the transportation and assembly processes; the soft package battery module is energy big, and current heat dissipation and thermal runaway safeguard are difficult to play effective role.
Disclosure of Invention
The utility model aims to solve the problem that in the prior art, in the charging and discharging process of a battery cell of a soft package battery module, the battery cell is easy to deform because the shell is wrapped by a softer polymer; the integrated integration of the soft package battery module is low, and additional fuses and relevant damping devices are required to be additionally arranged, so that the difficulty is increased in the transportation and assembly processes; the soft package battery module has the advantages that the energy is large, the existing heat dissipation and thermal runaway protection measures are difficult to play an effective role, and the like; the top of each of the plurality of stacked cell structures is provided with a cell copper bar, and each cell structure is connected in series and parallel with the wire harness through the cell copper bars; the outer layer of the cell structure is provided with heat insulation foam, and the inside of the heat insulation foam is lined with expansion foam.
Preferably, the battery cell structure comprises a heat dissipation plate, the soft package battery and the heat dissipation plate are stacked alternately, two sides of the battery cell structure are limited by limiting end plates, and a plurality of battery cell limiting holes are formed in the edge of the battery cell structure. The soft package battery and the heat dissipation plate are stacked alternately, so that heat of the soft package battery can be effectively dissipated through the heat dissipation plate, and the heat dissipation plate has certain rigidity and can inhibit deformation of the soft package battery. The limiting end plates at two sides of the soft-package battery also adopt metal plates, so that the heat conduction of the soft-package battery and the limitation of the battery cell structure are ensured. The battery cell limiting holes at the edges of the battery cell structures can fasten all the battery cell structures by using long screws to form a soft package battery module.
Preferably, the protection structure comprises a plastic frame with a plurality of first limiting holes matched with the limiting holes of the battery cells at the edge. The first limiting hole on the plastic frame is matched with the battery cell limiting hole to fix the soft package battery module in the plastic frame, other protection parts are conveniently arranged on the soft package battery module, and meanwhile, the soft package battery module is convenient to transport and fix.
Preferably, the plastic frame top is provided with a front top cover and a rear top cover according to the stacking thickness of the stacked cell structures. Because the intrinsic nature of electric core structure needs to set up the positive negative pole interface to and make things convenient for personnel to connect the positive negative pole interface of electric core structure, divide into preceding top cap and back top cap with the top cap at plastic frame top, but preceding top cap and back top cap still need satisfy the guard action to electric core structure, and the length of preceding top cap and back top cap sum of length need with the pile up thickness of a plurality of electric core structure and the length phase coupling of soft packet of battery module.
Preferably, the front end edge of the front top cover and the rear end edge of the rear top cover are respectively provided with an arched electrode protection cover, and the electrode protection covers are divided into an anode protection cover and a cathode protection cover according to battery polarities. The electrode of the battery cell structure is convenient for personnel to connect and production is convenient, the wiring positions of the electrodes are arranged at the edges of the front top cover and the rear top cover, and the electrode protection cover is arranged to play a role in dust prevention and collision prevention on the electrode interface.
Preferably, an electrode copper bar is arranged in the electrode protection cover, the electrode copper bar is divided into an anode copper bar and a cathode copper bar according to the polarity of the battery, a fuse is arranged on the electrode copper bar, and the fuse is connected with a wire harness by adopting a fastener combination. In order to improve the integration level of the soft package battery module, the fuse is arranged at the electrode copper bar of the electrode interface, and the fuse is not required to be additionally arranged on the user of the soft package battery module.
Preferably, the front roof and the rear roof are provided with an arch structure at the wire harness passing position. In order to fix and reasonably set the wire harnesses connected in series and parallel between the cell structures, arch structures are arranged at the wire harness passing positions of the front top cover and the rear top cover.
Preferably, the plastic frame is provided with a front end plate and a rear end plate at two ends, the front end plate and/or the rear end plate are provided with an outward turning edge with reinforcing ribs, and the outward turning edge is provided with mounting holes. The front end plate and/or the rear end plate are/is provided with an outward turning edge with a reinforcing rib, which is beneficial to heightening the structural strength of the soft-package battery module; the mounting holes on the outer turndown edge are convenient for fixing the soft package battery module.
The utility model has the advantages that the fuse is integrated into the module, and the soft package battery module is integrated, thereby being convenient for transportation and installation; the energy of the soft package battery module is increased, and the thermal runaway of the soft package battery module is prevented by changing the filling material among the batteries; the bottom of the metal end plate on two sides of the soft package battery module is additionally provided with the folded edges with the reinforcing ribs, so that the structural strength of the whole soft package battery module is enhanced, and the soft package battery module is convenient to fix.
Drawings
Fig. 1 is an overall schematic view of a pouch battery module;
fig. 2 is an overall exploded view of the pouch battery module;
FIG. 3 is a schematic view of thermal protection of a pouch cell;
fig. 4 is a schematic installation view of a fuse of a soft pack battery module.
Legend description: 1 a cell structure; 2, an anode protective cover; 3, a negative electrode protective cover; 4, a front top cover; 5, a rear top cover; a front end plate; 7, a rear end plate; 8 a soft package battery module main body; 8.1 a plastic frame; 8.2 a heat dissipation plate; 8.3, a copper bar of the battery cell; 8.4 negative copper bars; 8.5 positive copper bars; 8.6 wiring harnesses; 8.7 fuses; 8.8 cylindrical washers; 8.9 fastener assembly; 8.10 insulating foam; 8.11 expanding foam; 8.12 pouch cell.
Detailed Description
The technical scheme of the present utility model will be clearly and completely described in the following with reference to the accompanying drawings of the embodiments of the present utility model. The described embodiments are only embodiments of a part of the utility model, not all.
Referring to fig. 1 and 2, in one embodiment of the present utility model, a soft pack battery module body 8 includes a plurality of stacked cell structures 1 and a protection structure; the top of each of the plurality of stacked cell structures 1 is provided with a cell copper bar 8.3, and each cell structure 1 is connected in series-parallel with the cell copper bar 8.3 and the wire harness 8.6; the outer layer of the battery cell structure 1 is provided with heat insulation foam 8.10, and the inside of the heat insulation foam 8.10 is lined with expansion foam 8.11. In this embodiment, the heat insulation foam 8.10 is a silicon foam, and the expansion foam 8.11 is a polyurethane foam.
Through the arrangement, the battery cell deformation easily occurs due to the fact that the shell is wrapped by the softer polymer in the prior art; the integrated integration of the soft package battery module is low, and the additional fuse 8.7 and related shock absorption arrangement are needed, so that the difficulty is increased in the transportation and assembly processes; the soft package battery module has high energy, and the existing heat dissipation and thermal runaway protection measures are difficult to play an effective role.
Referring to fig. 2 and 3, in this embodiment, the battery core structure 1 includes a heat dissipation plate 8.2, soft package batteries 8.12 and the heat dissipation plate 8.2 are alternately stacked, two sides are limited by using limiting end plates, and four corners of the battery core structure 1 are provided with four battery core limiting holes. The soft package battery 8.12 and the heat dissipation plate 8.2 are alternately stacked, so that heat of the soft package battery 8.12 can be effectively dissipated through the heat dissipation plate 8.2, and the heat dissipation plate 8.2 has certain rigidity and can inhibit deformation of the soft package battery 8.12. The limiting end plates on the two sides of the soft-package battery 8.12 also adopt metal plates, so that the heat conduction of the soft-package battery 8.12 and the effective limiting of the battery cell structure 1 are ensured.
In this embodiment, four cell limiting holes at the edge of the cell structure 1 can fasten all the cell structures 1 by using long screws, so as to form a soft package battery module.
Because the soft-packed battery does not have a hard shell of a square battery or a cylindrical battery, a protection structure is required to be arranged outside the soft-packed battery 8.12, so that the soft-packed battery has the function of preventing the soft polymer shell of the soft-packed battery 8.12 from being broken and the soft-packed battery 8.12 from being deformed.
As shown in fig. 2, in this embodiment, the protection structure includes a plastic frame 8.1 with four corners provided with four first limiting holes matching with the limiting holes of the battery cells. The top of the plastic frame 8.1 is provided with a front cover 4 and a rear cover 5 depending on the stack thickness of the stacked cell structures 1. The first limiting hole on the plastic frame 8.1 is matched with the battery core limiting hole to fix the soft package battery module in the plastic frame 8.1, so that other protection parts are conveniently arranged on the soft package battery module, and meanwhile, the soft package battery module is convenient to transport and fix.
Because the intrinsic nature of the electric core structure 1 needs to set up positive and negative electrode interfaces, and the positive and negative electrode interfaces that make things convenient for personnel to connect electric core structure 1, divide into preceding top cap 4 and back top cap 5 with the top cap at plastic frame 8.1 top, but preceding top cap 4 and back top cap 5 still need satisfy the guard action to electric core structure 1, and the length of preceding top cap 4 and the length of back top cap 5 need couple with the stack thickness of a plurality of electric core structure 1 and the length of soft packet of battery module.
In this embodiment, as shown in fig. 1 and 2, for convenience in connection with the electrodes of the cell structure 1 and convenience in production, the edges of the front top cover 4 and the rear top cover 5 are provided with wiring positions of the electrodes, and the electrode protection cover is provided to play a role in dust prevention and collision prevention on the electrode interface. The front end edge of the front top cover 4 is provided with an arched electrode protection cover, the rear end edge of the rear top cover 5 is also provided with an arched electrode protection cover, the electrode protection cover is divided into an anode protection cover 2 and a cathode protection cover 3 according to battery polarities, and the anode protection cover 2 and the cathode protection cover 3 are precisely fixed on the front top cover 4 and the rear top cover 5 through positioning columns and buckles.
In this embodiment, an electrode copper bar is disposed in the electrode protection cover, the electrode copper bar is divided into an anode copper bar 8.5 and a cathode copper bar 8.4 according to the polarity of the battery, a fuse 8.7 is disposed on the electrode copper bar, and the fuse 8.7 is connected with a wire harness 8.6 by adopting a fastener combination 8.9 and a cylindrical gasket 8.8. Through the arrangement, the integration level of the soft package battery module is improved, the fuse 8.7 is arranged at the electrode copper bar of the electrode interface, the fuse 8.7 is not required to be additionally installed by a user of the soft package battery module, and the soft package battery module can be directly connected in a cascading manner or a wiring manner between modules.
In this embodiment, in order to connect each of the cell structures 1 in series and to obtain signals of each of the cell structures 1 in parallel, the sub-harness of the harness 8.6 is fixed on the cell copper bar 8.3 through a copper nose, the cell copper bar 8.3 is a 4P copper bar, and the lead-out portion of the harness 8.6 is fixed on an opening on the plastic frame 8.1. In order to fix and reasonably arrange the wire harnesses 8.6 connected in series and parallel between the cell structures 1, arch structures are arranged at the passing positions of the wire harnesses 8.6 of the front top cover 4 and the rear top cover 5.
In this embodiment, the plastic frame 8.1 is provided with a front end plate 6 and a rear end plate 7 at both ends, the front end plate 6 and the rear end plate 7 are provided with an outward turning edge with reinforcing ribs, and the outward turning edge is provided with mounting holes. The front end plate 6 and the rear end plate 7 are respectively provided with an outward turning edge with a reinforcing rib, which is beneficial to heightening the structural strength of the soft-package battery module; the mounting holes on the outer turndown edge are convenient for fixing the soft package battery module.
According to the utility model, through the arrangement, the problem that in the prior art, in the charging and discharging process of the battery cell of the soft package battery module, the battery cell is easy to deform because the shell is wrapped by a softer polymer is solved; the integrated degree of the soft package battery module is low, and the fuse 8.7 and the related shock absorption arrangement are required to be additionally arranged, so that the difficulty is increased in the transportation and assembly processes; the soft-package battery module has the advantages that the soft-package battery module is high in energy, the existing heat dissipation and thermal runaway protection measures are difficult to play an effective role, and the like, and the advantages are achieved that the silicon foam with a lower heat transfer coefficient and the polyurethane foam are adopted for matching use, the silicon foam blocks heat conduction of adjacent batteries due to the lower heat transfer coefficient, and the polyurethane foam absorbs pressure caused by battery expansion, so that the thermal runaway protection effect of the soft-package battery module is improved, and the overall size of the soft-package battery module is guaranteed; the fuse 8.7 is arranged in the soft package battery module, so that the integrated design of the soft package battery module is optimized; the wire harness 8.6 of the soft package battery module is fixed in the arch structure of the plastic frame 8.1, and the stability of the wire harness 8.6 is improved to a certain extent.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art should be able to apply equivalent substitutions or alterations to the technical solution and the inventive concept thereof within the scope of the present utility model.
Claims (8)
1. The soft package battery module is characterized by comprising a plurality of stacked cell structures (1) and a plurality of stacked cell structures
A protective structure;
The top parts of the plurality of stacked cell structures are respectively provided with a cell copper bar (8.3), and each cell copper bar and a wire harness (8.6) are connected in series and parallel
A core structure;
The outer layer of the battery cell structure is provided with heat insulation foam (8.10), and the inside of the heat insulation foam is lined with expansion foam (8.11).
2. The flexible battery module according to claim 1, wherein the cell structure comprises a heat dissipation plate (8.2),
The soft package battery and the heat dissipation plate are stacked alternately, two sides of the soft package battery are limited by limiting end plates, and a plurality of battery cell limits are arranged at the edge of the battery cell structure
And a bit hole.
3. The flexible battery module according to claim 1, wherein the protection structure comprises a plurality of edges
And a plastic frame (8.1) with a first limiting hole matched with the limiting hole of the battery cell.
4. A pouch battery module according to claim 3, wherein the plastic frame top is according to stacked electricity
The core structure has a stack thickness provided with a front cap (4) and a rear cap (5).
5. The flexible battery module according to claim 4, wherein the front end edge of the front cover and the rear cover
The rear end edges of the battery are respectively provided with an arched electrode protection cover, and the electrode protection covers are divided into an anode protection cover (2) and a cathode protection cover (2) according to the polarity of the battery
And a negative electrode protective cover (3).
6. The flexible battery module according to claim 5, wherein the electrode protection cover is provided with an electrode copper bar,
The electrode copper bar is divided into an anode copper bar (8.5) and a cathode copper bar (8.4) according to the polarity of the battery, a fuse (8.7) is arranged on the electrode copper bar,
The fuse is connected with the wire harness (8.6) by adopting a fastener combination (8.9).
7. The flexible battery module according to claim 4 or 5, wherein the front cover and the rear cover are positioned on a wire harness
An arch structure is arranged at the passing position.
8. A flexible battery module according to claim 3, wherein front end plates (6) are provided at both ends of the plastic frame
And a rear end plate (7), wherein the front end plate and/or the rear end plate are/is provided with an outward turning edge with reinforcing ribs, and the outward turning edge is provided with mounting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322464795.9U CN220873799U (en) | 2023-09-12 | 2023-09-12 | Soft package battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322464795.9U CN220873799U (en) | 2023-09-12 | 2023-09-12 | Soft package battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220873799U true CN220873799U (en) | 2024-04-30 |
Family
ID=90814654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322464795.9U Active CN220873799U (en) | 2023-09-12 | 2023-09-12 | Soft package battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220873799U (en) |
-
2023
- 2023-09-12 CN CN202322464795.9U patent/CN220873799U/en active Active
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