CN206451793U - Quadrate secondary lithium battery structure - Google Patents
Quadrate secondary lithium battery structure Download PDFInfo
- Publication number
- CN206451793U CN206451793U CN201720080041.5U CN201720080041U CN206451793U CN 206451793 U CN206451793 U CN 206451793U CN 201720080041 U CN201720080041 U CN 201720080041U CN 206451793 U CN206451793 U CN 206451793U
- Authority
- CN
- China
- Prior art keywords
- battery
- metal
- secondary lithium
- thermal conductivity
- lithium battery
- 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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Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 claims abstract description 33
- 239000002184 metal Substances 0.000 claims abstract description 33
- 238000002844 melting Methods 0.000 claims abstract description 11
- 230000008018 melting Effects 0.000 claims abstract description 11
- 230000004888 barrier function Effects 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 4
- 229910001128 Sn alloy Inorganic materials 0.000 claims description 4
- 229910000648 terne Inorganic materials 0.000 claims description 4
- GZCWPZJOEIAXRU-UHFFFAOYSA-N tin zinc Chemical compound [Zn].[Sn] GZCWPZJOEIAXRU-UHFFFAOYSA-N 0.000 claims description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 230000002776 aggregation Effects 0.000 abstract description 2
- 238000004220 aggregation Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000000956 alloy Substances 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011056 performance test 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Secondary Cells (AREA)
Abstract
The utility model discloses a kind of quadrate secondary lithium battery structure, including the battery battery core being formed by stacking by multiple hierarchical elements, encapsulated layer is provided with the outside of battery battery core；The hierarchical element includes positive plate（101）And negative plate（102）, positive plate（101）And negative plate（102）Between be provided with barrier film（103）；Between each hierarchical element and battery battery core（1）Outermost is also equipped with barrier film（103）；It is low melting point, the sheet metal of high thermal conductivity coefficient metal that material is provided with one or more hierarchical elements of the battery battery core（104）.The utility model by set on battery the low melting point combined closely with battery, high thermal conductivity coefficient metal, when thermal runaway situation occurs during battery use, low melting point, the metal simple-substance of high thermal conductivity coefficient or alloy can quickly absorb and transmit heat, reduce the heat aggregation of battery, thermal runaway risk is reduced, so as to improve the security performance of battery.
Description
Technical field
The utility model is related to a kind of serondary lithium battery structure, more particularly to a kind of quadrate secondary lithium battery structure.
Background technology
Since the green energy resource epoch, battery oneself gradually replacing fuel oil be applied to pure electric vehicle (EV), hybrid electrically
Car (HEV) and plug-in hybrid electric vehicle (PHEV), while the maximization of battery cell capacity turns into the hair of Vehicular dynamic battery
Exhibition trend, and security performance is the basic demand to Prospect of EVS Powered with Batteries, the security performance of battery and its capacity are into anti-
Than capacity is bigger, and the security and Reliability Design to battery requires higher.At present, restriction battery is commercialized in electrokinetic cell
Principal element is its security performance.Battery is likely to cause to occur when interior external short circuit, overcharge, overheat
The unsafe acts such as fire, blast.The failure of battery is the result of many factors comprehensive function, finally then shows as thermal runaway.
Utility model content
The purpose of this utility model is that there is provided a kind of quadrate secondary lithium battery structure.It can effectively buffer secondary lithium
The thermal runaway of battery, so as to improve the security performance of serondary lithium battery.
In order to solve the above technical problems, the technical scheme that the utility model is provided is as follows：Quadrate secondary lithium battery structure, its
Feature is：Including the battery battery core being formed by stacking by multiple hierarchical elements, encapsulated layer is provided with the outside of battery battery core；The lamination list
Member includes positive plate and negative plate, and barrier film is provided between positive plate and negative plate；Between each hierarchical element with battery battery core most
Outside is also equipped with barrier film；It is low melting point, high heat conduction system that material is provided with one or more hierarchical elements of the battery battery core
The sheet metal of number metal.
In above-mentioned quadrate secondary lithium battery structure, the low melting point, high thermal conductivity coefficient metal are that fusing point is 40 DEG C~650
DEG C, thermal conductivity factor be 20W/ (mK)~500W/ (mK) metal.
In foregoing quadrate secondary lithium battery structure, the sheet metal is tin piece or zinc metal sheet.
In foregoing quadrate secondary lithium battery structure, the sheet metal is that Zinc-tin alloy piece or terne metal piece are (commercially available
The conventional Zinc-tin alloy or terne metal of fusing point and thermal conductivity factor within the above range).
In foregoing quadrate secondary lithium battery structure, the thickness of the sheet metal is 5 μm~5mm.
Compared with prior art, the utility model on battery by setting the low melting point combined closely with battery, height to lead
The metal of hot coefficient, when thermal runaway situation occurs during battery use, low melting point, the metal simple-substance of high thermal conductivity coefficient or conjunction
Gold can quickly absorb and transmit heat, reduce the heat aggregation of battery, thermal runaway risk is reduced, so as to improve the peace of battery
Full performance.
Brief description of the drawings
Fig. 1 is the hierarchical element structural representation of battery battery core of the present utility model.
Embodiment
The utility model is further described with reference to embodiment.
Embodiment：Quadrate secondary lithium battery structure, as shown in figure 1, including the battery being formed by stacking by multiple hierarchical elements
Encapsulated layer is provided with the outside of battery core, battery battery core；The hierarchical element includes positive plate 101 and negative plate 102, the He of positive plate 101
Barrier film 103 is provided between negative plate 102；Between each hierarchical element barrier film 103 is also equipped with battery battery core outermost；Institute
It is low melting point, the sheet metal 104 of high thermal conductivity coefficient metal to state and material is provided with one or more hierarchical elements of battery battery core 1.
Metal used in sheet metal 104 is that fusing point is 40 DEG C~650 DEG C, and thermal conductivity factor is 20W/ (mK)~500W/'s (mK)
Tin, zinc, Zinc-tin alloy or terne metal.The thickness of sheet metal 104 is 5 μm~5mm.Described positive plate, negative plate are by specific
Equipment die cut form, positive and negative plate is without corner angle, impulse- free robustness.Fold encapsulated battery battery core into sheet metal, baking, note
Liquid and detection etc., finally obtain the quadrate secondary lithium battery.
Performance test.Triggered thermal runaway test is carried out to battery of the present utility model, triggering battery occurs internal short
Road, test battery is not on fire in process of the test, 221 DEG C of battery surface maximum temperature.Thermal runaway triggering method, establishing criteria
《Electric motor coach safety specification》Appendix B secondary battery unit thermal runaway is tested.
Comparative example 1：Heated in this example to not adding low melting point, the same structure of high thermal conductivity coefficient metal with capacity batteries
Thermal runaway test is triggered, experiment finds that test battery is on fire in process of the test, 500 DEG C of battery surface maximum temperature.
Claims (5)
1. quadrate secondary lithium battery structure, it is characterised in that：Including the battery battery core being formed by stacking by multiple hierarchical elements, battery
Encapsulated layer is provided with the outside of battery core；The hierarchical element includes positive plate (101) and negative plate (102), positive plate (101) and negative pole
Barrier film (103) is provided between piece (102)；Between each hierarchical element barrier film is also equipped with battery battery core (1) outermost
(103)；It is low melting point, the metal of high thermal conductivity coefficient metal that material is provided with one or more hierarchical elements of the battery battery core
Piece (104).
2. quadrate secondary lithium battery structure according to claim 1, it is characterised in that：The low melting point, high thermal conductivity coefficient
Metal is the metal that fusing point is 40 DEG C~650 DEG C, thermal conductivity factor is 20W/ (mK)~500W/ (mK).
3. quadrate secondary lithium battery structure according to claim 2, it is characterised in that：The sheet metal (104) is tin piece
Or zinc metal sheet.
4. quadrate secondary lithium battery structure according to claim 2, it is characterised in that：The sheet metal (104) is zinc-tin
Alloy sheet or terne metal piece.
5. quadrate secondary lithium battery structure according to claim 1, it is characterised in that：The thickness of the sheet metal (104)
For 5 μm~5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720080041.5U CN206451793U (en) | 2017-01-22 | 2017-01-22 | Quadrate secondary lithium battery structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720080041.5U CN206451793U (en) | 2017-01-22 | 2017-01-22 | Quadrate secondary lithium battery structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206451793U true CN206451793U (en) | 2017-08-29 |
Family
ID=59667131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720080041.5U Active CN206451793U (en) | 2017-01-22 | 2017-01-22 | Quadrate secondary lithium battery structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206451793U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114824288A (en) * | 2022-05-09 | 2022-07-29 | 江苏正力新能电池技术有限公司 | Battery core, battery module and battery pack |
| CN114824287A (en) * | 2022-05-09 | 2022-07-29 | 江苏正力新能电池技术有限公司 | Battery core, battery module and battery pack |
| CN114883562A (en) * | 2022-05-09 | 2022-08-09 | 江苏正力新能电池技术有限公司 | Battery core, battery module and battery pack |
-
2017
- 2017-01-22 CN CN201720080041.5U patent/CN206451793U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114824288A (en) * | 2022-05-09 | 2022-07-29 | 江苏正力新能电池技术有限公司 | Battery core, battery module and battery pack |
| CN114824287A (en) * | 2022-05-09 | 2022-07-29 | 江苏正力新能电池技术有限公司 | Battery core, battery module and battery pack |
| CN114883562A (en) * | 2022-05-09 | 2022-08-09 | 江苏正力新能电池技术有限公司 | Battery core, battery module and battery pack |
| CN114883562B (en) * | 2022-05-09 | 2024-05-24 | 江苏正力新能电池技术有限公司 | Electric core, battery module and battery package |
| CN114824287B (en) * | 2022-05-09 | 2024-05-24 | 江苏正力新能电池技术有限公司 | Electric core, battery module and battery package |
| CN114824288B (en) * | 2022-05-09 | 2024-05-24 | 江苏正力新能电池技术有限公司 | Electric core, battery module and battery package |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190611 Address after: 313000 Dongbin Road, Huzhou City, Zhejiang Province, 588 Patentee after: Zhejiang travel and Power System Co.,Ltd. Address before: 313009 No. 8, Jinghang Road, Lianshi Town, Nanxun District, Huzhou City, Zhejiang Province Patentee before: HUZHOU BAICHENG BATTERY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240311 Address after: 528000, 5th Floor, No. 13 Huafu Road, Huakou Community, Ronggui Street, Shunde District, Foshan City, Guangdong Province, China Patentee after: Foshan Tuopu Technology Co.,Ltd. Country or region after: China Address before: 313000 Dongbin Road, Huzhou City, Zhejiang Province, 588 Patentee before: Zhejiang travel and Power System Co.,Ltd. Country or region before: China |