CN215527830U - Battery module and battery pack - Google Patents
Battery module and battery pack Download PDFInfo
- Publication number
- CN215527830U CN215527830U CN202121093966.6U CN202121093966U CN215527830U CN 215527830 U CN215527830 U CN 215527830U CN 202121093966 U CN202121093966 U CN 202121093966U CN 215527830 U CN215527830 U CN 215527830U
- Authority
- CN
- China
- Prior art keywords
- terminal
- flexible package
- battery module
- shell
- negative
- 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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- 238000003466 welding Methods 0.000 claims abstract description 6
- 230000017525 heat dissipation Effects 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 claims description 14
- 238000012856 packing Methods 0.000 claims description 14
- 229910052744 lithium Inorganic materials 0.000 claims description 12
- 239000004033 plastic Substances 0.000 claims description 10
- 239000007774 positive electrode material Substances 0.000 claims description 10
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 9
- 239000003792 electrolyte Substances 0.000 claims description 9
- 239000002985 plastic film Substances 0.000 claims description 6
- 229920006255 plastic film Polymers 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 5
- 229910052708 sodium Inorganic materials 0.000 claims description 5
- 239000011734 sodium Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 8
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 8
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 239000010405 anode material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- DCYOBGZUOMKFPA-UHFFFAOYSA-N iron(2+);iron(3+);octadecacyanide Chemical compound [Fe+2].[Fe+2].[Fe+2].[Fe+3].[Fe+3].[Fe+3].[Fe+3].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] DCYOBGZUOMKFPA-UHFFFAOYSA-N 0.000 description 2
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 2
- ZAUUZASCMSWKGX-UHFFFAOYSA-N manganese nickel Chemical compound [Mn].[Ni] ZAUUZASCMSWKGX-UHFFFAOYSA-N 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 229960003351 prussian blue Drugs 0.000 description 2
- 239000013225 prussian blue Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Images
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
Abstract
The utility model relates to a battery module and a battery pack, wherein the battery module comprises a shell, at least two flexible package electric cores arranged in the shell and a support used for fixing the flexible package electric cores, the flexible package electric cores are paved in the support, the flexible package electric cores are connected in parallel and then in series or directly in series, a total anode and a total cathode after being connected in series are respectively connected with an anode converging terminal and a cathode converging terminal, the series welding positions of the adjacent flexible package electric cores and the flexible package electric cores are connected with an information acquisition terminal, the assembled flexible package electric cores are arranged in the shell, and the shell is packaged and welded with a cover plate; the cover plate is provided with a through hole, and the positive pole, the information output terminal and the negative pole penetrate through the through hole in the cover plate and are respectively connected with the positive bus bar terminal, the terminal and the negative bus bar terminal. The mechanical strength of the flexible package lithium ion battery is increased by arranging the metal shell and the support, the battery module is good in heat dissipation performance and high in space utilization rate, and the assembly convenience is improved.
Description
Technical Field
The utility model relates to a battery module and a battery pack.
Background
With the popularization of new energy automobiles, users put higher requirements on the endurance mileage of the new energy automobiles, and the influence on the endurance of electric automobiles is mainly the energy density of a battery pack, how to pack more batteries in a limited battery pack space, and the improvement of the grouping efficiency becomes the key point of research and development of each battery enterprise.
At present, lithium ion batteries on the market are divided into the following materials according to the outer packaging materials: the lithium ion battery with the aluminum shell, the lithium ion battery with the steel shell, the flexible package lithium ion battery and the like, wherein the lithium ion battery with the aluminum shell and the lithium ion battery with the steel shell are convenient to assemble due to high shell hardness; the soft package battery has strong plasticity, but the aluminum-plastic outer package has low strength and weak mechanical impact resistance, and needs a complex assembly mode to stabilize the structure and improve the strength. This results in inefficient and costly grouping of modules.
The present invention has been made to solve these problems.
Disclosure of Invention
The utility model aims to provide a battery module.
The purpose of the utility model can be realized by the following technical scheme:
the utility model provides a battery module, which comprises an outer shell, arrange two at least soft-packing electricity core in the shell in and be used for the support of fixed soft-packing electricity core, soft-packing electricity core is spread in the support, soft-packing electricity core is parallelly connected earlier and is established ties or directly establish ties, total positive pole after establishing ties, total negative pole respectively with anodal terminal that converges, the negative pole terminal that converges is connected, the adjacent series connection welded position of soft-packing electricity core and soft-packing electricity core is connected with the information acquisition terminal, the shell is arranged in to the soft-packing electricity core group that assembles, shell and apron encapsulation welding.
Preferably, the housing and the cover plate are made of metal materials with high heat dissipation coefficients.
Preferably, the portable terminal further comprises a positive pole, an information output terminal and a negative pole, the cover plate is provided with a through hole, and the positive pole, the information output terminal and the negative pole penetrate through the through hole in the cover plate to be connected with the positive bus terminal, the information acquisition terminal and the negative bus terminal respectively.
Preferably, plastic parts are padded above the positive bus terminal, the negative bus terminal and the information acquisition terminal, and through holes are formed in the plastic parts.
Preferably, the cover plate is provided with an explosion-proof exhaust valve.
Preferably, the flexible package battery cell comprises a positive electrode, a negative electrode, an isolating film, an electrolyte and an aluminum-plastic film shell, the positive electrode, the negative electrode and the isolating film are wound or laminated to form a roll core, the aluminum-plastic film is packaged outside the roll core, and the electrolyte is injected into the roll core.
Preferably, the positive electrode is a lithium-containing positive electrode material or a sodium-containing positive electrode material or a non-metal positive electrode material, and the negative electrode is graphite or a silicon-containing material or lithium metal; the electrolyte is in a liquid or solid state.
Preferably, the lithium-containing positive electrode material comprises any one or a mixture of any more of lithium iron phosphate, lithium manganate, lithium-rich manganese, nickel manganese and lithium cobaltate, and the sodium-containing positive electrode material is prussian blue.
A battery pack comprises a plurality of battery modules.
The beneficial technical effects are as follows:
this battery module can increase flexible package lithium ion battery's mechanical strength through setting up metal casing, support to easily in groups, reduce the connecting piece that outside series connection produced, improve efficiency in groups, reduce cost, heat dispersion is good, and space utilization is high, improves assembly convenience and automation.
Drawings
The utility model will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic view of a battery module according to the present invention.
Fig. 2 is an exploded view of a part of the structure of a battery module according to the present invention.
Fig. 3 is a schematic structural view of an assembled battery module according to the present invention.
Fig. 4 is a schematic diagram of a battery pack structure according to the present invention.
In the figure: 1-positive pole confluence terminal, 2-negative pole confluence terminal, 3-positive pole, 4-negative pole, 5-explosion-proof exhaust valve, 6-information output terminal, 7-bracket, 8-flexible package battery cell, 9-shell, 10-information acquisition terminal, 11-plastic part, 12-cover plate, 100-battery module and 101-battery pack frame.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a battery module 100 includes a housing 9, at least two flexible package battery cells 8 disposed in the housing 9, a support 7 for fixing the flexible package battery cells 8, a cover plate 12, a positive electrode pillar 3, an information output terminal 6, a negative electrode pillar 4, an information collecting terminal 10, a positive electrode collecting terminal 1, and a negative electrode collecting terminal 2, wherein the flexible package battery cells 8 are laid in the support 7, the flexible package battery cells 8 are connected in parallel and then connected in series or directly connected in series, a total positive electrode and a total negative electrode after being connected in series are respectively connected with the positive electrode collecting terminal 1 and the negative electrode collecting terminal 2, the flexible package battery cells 8 and the flexible package battery cells 8 are connected in series at adjacent welding positions and are connected with the information collecting terminal 10, the assembled flexible package battery cells 8 are disposed in the housing 9, a through hole is disposed on the cover plate 12, and the positive electrode pillar 3, the information output terminal 6, and the negative electrode pillar 4 pass through the through hole on the cover plate 12 and are respectively connected with the positive electrode collecting terminal 1, The information collecting terminal 10 and the negative bus bar terminal 2 are connected, and the case 9 and the lid plate 12 are sealed and welded to form the battery module 100. The information acquisition terminal 10 is used for acquiring information such as voltage, current and temperature, and the information output terminal 6 is used for outputting information such as voltage, current and temperature.
The housing 9 and the cover plate 12 are made of metal material with high heat dissipation coefficient. Plastic parts 11 are respectively arranged above the positive bus terminal 1, the negative bus terminal 2 and the information acquisition terminal 10 in a cushioning manner, so that the plastic parts 11 have an insulation effect, through holes are formed in the plastic parts 11, and the positive pole column 3, the information output terminal 6 and the negative pole column 4 penetrate through the cover plate 12 and the through holes in the plastic parts 11 to be respectively connected with the positive bus terminal 1, the information acquisition terminal 10 and the negative bus terminal 2; the cover plate 12 is provided with an explosion-proof exhaust valve 5.
The grouping method of the battery module 100 includes the following steps:
step 1: the flexible package battery cores 8 are sequentially paved in the bracket 7 and are connected in parallel and then connected in series or directly connected in series; preferably, 2 flexible package battery cells 8 are connected in parallel, the width of the module is increased by connecting in series, and the total positive electrode and the total negative electrode are led out in the direction perpendicular to the length of the flexible package battery cells 8; preferably, the battery modules 100 have a pack width of 400mm to 2500mm and a thickness of 5mm to 60 mm.
Step 2: the total positive electrode and the total negative electrode connected in series are connected to the positive electrode bus terminal 1 and the negative electrode bus terminal 2, respectively.
And step 3: the information acquisition terminal 10 is connected to the information output terminal 6.
And 4, step 4: and placing the connected flexible package battery cell 8 in a shell 9.
And 5: the shell 9 and the cover plate 12 are subjected to encapsulation welding.
The flexible package battery cell 8 comprises an anode, a cathode, an isolating film, electrolyte and an aluminum-plastic film shell, wherein the anode, the cathode and the isolating film are assembled in a winding or laminating mode to form a winding core, and the winding core is packaged by the aluminum-plastic film and the electrolyte is injected to form the flexible package battery cell; the positive and negative electrodes of the flexible package battery cell are output from two ends; the anode is a lithium-containing anode material or a sodium-containing anode material or a non-metal anode material, and the cathode is graphite or a silicon-containing material or lithium metal; the electrolyte is in a liquid state or a solid state; the lithium-containing positive electrode material comprises any one or a mixture of any more of lithium iron phosphate, lithium manganate, lithium-rich manganese, nickel manganese and lithium cobaltate, and the sodium-containing positive electrode material is Prussian blue.
Referring to fig. 4, a plurality of battery modules 100 are assembled to form a battery pack, and the battery pack is placed on a battery pack holder 101.
Claims (8)
1. The utility model provides a battery module, a serial communication port, including shell (9), arrange two at least soft-packing electricity core (8) in shell (9) in, support (7) for fixing soft-packing electricity core (8), anodal terminal (1) that converges, negative pole terminal (2) and information acquisition terminal (10) converge, soft-packing electricity core (8) are spread in support (7), soft-packing electricity core (8) are parallelly connected earlier and then are established ties or directly establish ties, total positive after the series connection, total negative pole respectively with anodal terminal (1) that converges, negative pole terminal (2) that converges are connected, adjacent soft-packing electricity core (8) are connected with information acquisition terminal (10) with soft-packing electricity core (8) series connection welding position, shell (9) are arranged in to assembled soft-packing electricity core (8), shell (9) and apron (12) encapsulation welding.
2. The battery module according to claim 1, wherein the housing (9) and the cover plate (12) are made of a metal material having a high heat dissipation coefficient.
3. The battery module according to claim 2, further comprising a positive post (3), an information output terminal (6) and a negative post (4), wherein the cover plate (12) is provided with a through hole, and the positive post (3), the information output terminal (6) and the negative post (4) are respectively connected with the positive bus bar terminal (1), the information collecting terminal (10) and the negative bus bar terminal (2) through the through hole of the cover plate (12).
4. The battery module according to claim 3, wherein plastic members (11) are padded above the positive bus bar terminal (1), the negative bus bar terminal (2) and the information acquisition terminal (10), and through holes are formed in the plastic members (11).
5. The battery module according to claim 1, wherein the cover plate (12) is provided with an explosion-proof exhaust valve (5).
6. The battery module according to claim 1, wherein the flexible package battery cell (8) comprises a positive electrode, a negative electrode, a separator, an electrolyte and an aluminum-plastic film, the positive electrode, the negative electrode and the separator are wound or laminated to form a winding core, the aluminum-plastic film is encapsulated outside the winding core, and the electrolyte is injected into the winding core.
7. The battery module according to claim 6, wherein the positive electrode is a lithium-containing positive electrode material or a sodium-containing positive electrode material or a non-metallic positive electrode material, and the negative electrode is graphite or a silicon-containing material or lithium metal; the electrolyte is in a liquid or solid state.
8. A battery pack comprising a plurality of battery modules according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121093966.6U CN215527830U (en) | 2021-05-20 | 2021-05-20 | Battery module and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121093966.6U CN215527830U (en) | 2021-05-20 | 2021-05-20 | Battery module and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215527830U true CN215527830U (en) | 2022-01-14 |
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ID=79804821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121093966.6U Active CN215527830U (en) | 2021-05-20 | 2021-05-20 | Battery module and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215527830U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114464961A (en) * | 2022-01-19 | 2022-05-10 | 蜻蜓实验室(深圳)有限公司 | Lithium ion battery and lithium ion battery pack |
| CN115000592A (en) * | 2022-06-20 | 2022-09-02 | 万向一二三股份公司 | Novel soft-package square-shell battery |
| WO2024021085A1 (en) * | 2022-07-29 | 2024-02-01 | 宁德时代新能源科技股份有限公司 | End cover assembly, battery assembly, battery, and electric apparatus |
-
2021
- 2021-05-20 CN CN202121093966.6U patent/CN215527830U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114464961A (en) * | 2022-01-19 | 2022-05-10 | 蜻蜓实验室(深圳)有限公司 | Lithium ion battery and lithium ion battery pack |
| CN114464961B (en) * | 2022-01-19 | 2024-03-29 | 蜻蜓实验室(深圳)有限公司 | Lithium ion battery and lithium ion battery pack |
| CN115000592A (en) * | 2022-06-20 | 2022-09-02 | 万向一二三股份公司 | Novel soft-package square-shell battery |
| WO2024021085A1 (en) * | 2022-07-29 | 2024-02-01 | 宁德时代新能源科技股份有限公司 | End cover assembly, battery assembly, battery, and electric apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A battery module and battery pack Effective date of registration: 20230104 Granted publication date: 20220114 Pledgee: South Taihu New Area sub branch of Huzhou Wuxing Rural Commercial Bank Co.,Ltd. Pledgor: Tianneng new energy (Huzhou) Co.,Ltd. Registration number: Y2023980030108 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20220114 Pledgee: South Taihu New Area sub branch of Huzhou Wuxing Rural Commercial Bank Co.,Ltd. Pledgor: Tianneng new energy (Huzhou) Co.,Ltd. Registration number: Y2023980030108 |