CN209282294U - Lithium ion battery - Google Patents
Lithium ion battery Download PDFInfo
- Publication number
- CN209282294U CN209282294U CN201821994767.0U CN201821994767U CN209282294U CN 209282294 U CN209282294 U CN 209282294U CN 201821994767 U CN201821994767 U CN 201821994767U CN 209282294 U CN209282294 U CN 209282294U
- Authority
- CN
- China
- Prior art keywords
- connection sheet
- positive
- lithium ion
- ion battery
- connect
- 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
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 22
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 238000003466 welding Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 15
- 229910052744 lithium Inorganic materials 0.000 abstract description 15
- 238000010586 diagram Methods 0.000 description 6
- 101100460844 Mus musculus Nr2f6 gene Proteins 0.000 description 4
- 210000005069 ears Anatomy 0.000 description 4
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000649 photocoagulation Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 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
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a lithium ion battery, including positive pole subassembly and negative pole subassembly, positive pole subassembly includes positive pole roll core, first connection piece and anodal utmost point post, is formed with anodal utmost point ear on the positive pole roll core, and anodal utmost point ear cross-section is "L" shape, and anodal utmost point ear one side is connected with first connection piece, and first connection piece is connected with anodal utmost point post, and negative pole subassembly includes negative pole roll core, second connection piece and negative pole post, is formed with the negative pole utmost point ear on the negative pole roll core, and negative pole utmost point ear cross-section is "L" shape, and negative pole utmost point ear one side is connected with the second connection piece, and the second connection piece is connected with the negative pole post; the utility model discloses in, the lithium ion battery that provides, the inside positive pole utmost point ear of lithium cell and negative pole utmost point ear are "L" shape, and it still less to occupy the lithium cell inner space for "S" shape utmost point ear, under the unchangeable circumstances of lithium cell casing size, has improved the inside effective utilization of lithium cell.
Description
Technical field
The utility model relates to technical field of lithium batteries more particularly to a kind of lithium ion batteries.
Background technique
The rectangular hard shell battery of takeup type relies on its high production efficiency, is better than soft-package battery to the protective effect of battery core, and empty
Between utilization rate be better than cylindrical battery, and possess higher popularity rate in power battery market, as market is close to the energy content of battery
The continuous improvement of degree demand, all big enterprises all in the capacity for improving battery of trying one's best, reduce the weight of battery core, Lai Tigao battery
Energy density；Fig. 1 is the internal structure of lithium battery in the prior art, and the tab A of lithium battery interior is in serpentine structure, this
Structure occupancy lithium battery interior space is larger, in the case where not changing li battery shell size, effective rate of utilization in lithium battery
It is lowered.
Utility model content
To solve technical problem present in background technique, the utility model proposes a kind of lithium ion batteries.
The utility model proposes a kind of lithium ion battery, including positive electrode and cathode component；
Positive electrode includes positive core, the first connection sheet and Positive Poles, is formed with positive pole ear in positive core, just
Pole tab section is L-shaped, and positive pole ear side is connect with the first connection sheet, and the first connection sheet is connect with Positive Poles；
Cathode component includes cathode core, the second connection sheet and negative pole, is formed with negative lug in cathode core, is born
Pole tab section is L-shaped, and negative lug side is connect with the second connection sheet, and the second connection sheet is connect with negative pole.
Preferably, positive pole ear is equipped with multiple, and multiple positive pole ears are arranged in parallel.
Preferably, negative lug is equipped with multiple, and multiple negative lugs are arranged in parallel.
Preferably, the first connection sheet includes the first connecting portion and second connecting portion being fixedly connected, first connecting portion surface
Product is greater than second connecting portion, and first connecting portion is connect with positive pole ear, and second connecting portion is connect with Positive Poles.
Preferably, the second connection sheet includes the third interconnecting piece and the 4th interconnecting piece being fixedly connected, third connection surface
Product is greater than the 4th interconnecting piece, and third interconnecting piece is connect with negative lug, and the 4th interconnecting piece is connect with negative pole.
Preferably, positive pole ear and the first connection sheet are passed through sharp by ultrasonic bonding, the first connection sheet and Positive Poles
Photocoagulation.
Preferably, negative lug and the second connection sheet are passed through sharp by ultrasonic bonding, the second connection sheet and negative pole
Photocoagulation.
Preferably, the first connection sheet is made of Al060-o.
Preferably, the second connection sheet is made of CuT-M.
In the utility model, the lithium ion battery proposed, the positive pole ear and negative lug of lithium battery interior is in " L "
Shape, it is less relative to serpentine tab occupancy lithium battery interior space, in the case where keeping lithium battery casing size constancy, mention
High lithium battery interior effective rate of utilization.
Detailed description of the invention
Fig. 1 is the schematic diagram of internal structure of lithium ion battery in the prior art；
Fig. 2 be the utility model proposes a kind of lithium ion cell positive component structural schematic diagram；
Fig. 3 be the utility model proposes the first connection sheet structural schematic diagram.
Specific embodiment
As shown in Figure 1-3, Fig. 1 is the schematic diagram of internal structure of lithium ion battery in the prior art, Fig. 2 is the utility model
A kind of structural schematic diagram of the lithium ion cell positive component proposed, Fig. 3 are the structural schematic diagram of the first connection sheet.
Referring to Fig. 2, the utility model proposes a kind of lithium ion battery, including positive electrode and cathode component；
Positive electrode includes positive core 1, the first connection sheet 3 and Positive Poles 4, is formed with positive pole in positive core 1
Ear 2,2 section of positive pole ear is L-shaped, and 2 side of positive pole ear is connect with the first connection sheet 3, the first connection sheet 3 and Positive Poles
4 connections；
Cathode component includes cathode core, the second connection sheet and negative pole, is formed with negative lug in cathode core, is born
Pole tab section is L-shaped, and negative lug side is connect with the second connection sheet, and the second connection sheet is connect with negative pole.
Positive Poles 4 and negative pole are located at the same side.
In the present embodiment, increase the intracorporal available space of shell by reducing to be flexible coupling with the height of tab bending, favorably
In the promotion of battery core capacity and energy density.
In the present embodiment, each circle of positive core 1 extends a positive pole ear 2, therefore there is multiple positive poles
Ear 2, multiple positive pole ears 2 connect and are arranged in parallel with the first connection sheet 3, and each positive pole ear 2 is opposite and in the prior art
Extreme ear structure save lithium battery interior space, the spatial summation that multiple positive pole ears 2 are saved gets up bigger.
In the present embodiment, each circle of cathode core extends a negative lug, therefore there is multiple negative lugs,
Multiple negative lugs connect and are arranged in parallel with the second connection sheet, and each negative lug is opposite with tab knot in the prior art
Structure saves lithium battery interior space, and the spatial summation that multiple negative lugs are saved gets up bigger.
Referring to Fig. 3, the first connection sheet 3 includes the first connecting portion 31 and second connecting portion 32 being fixedly connected, the first connection
31 surface area of portion is greater than 32 surface area of second connecting portion, and first connecting portion 31 is connect with multiple positive pole ears 2, second connecting portion 32
It is connect with Positive Poles 4.
Second connection sheet includes the third interconnecting piece and the 4th interconnecting piece being fixedly connected, and third connection surface product is greater than the
Four connection surfaces product, third interconnecting piece are connect with multiple negative lugs, and the 4th interconnecting piece is connect with negative pole.
In the present embodiment, positive pole ear 2 and the first connection sheet 3 pass through ultrasonic bonding, the first connection sheet 3 and Positive Poles
4 pass through laser welding.
By ultrasonic bonding, the second connection sheet passes through laser welding with negative pole for negative lug and the second connection sheet.
First connection sheet 3 can be made of aluminum material, and in the present embodiment, the first connection sheet 3 uses Al1060-o system
At.
Second connection sheet can be made of copper material, and in the present embodiment, the second connection sheet is made of CuT2-M.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (9)
1. a kind of lithium ion battery, which is characterized in that including positive electrode and cathode component；
Positive electrode includes positive core (1), the first connection sheet (3) and Positive Poles (4), is formed with just on positive core (1)
Pole tab (2), positive pole ear (2) section is L-shaped, and positive pole ear (2) side is connect with the first connection sheet (3), the first connection
Piece (3) is connect with Positive Poles (4)；
Cathode component includes cathode core, the second connection sheet and negative pole, and negative lug, cathode pole are formed in cathode core
Ear section is L-shaped, and negative lug side is connect with the second connection sheet, and the second connection sheet is connect with negative pole.
2. lithium ion battery according to claim 1, which is characterized in that positive pole ear (2) is equipped with multiple, multiple anode poles
Ear (2) is arranged in parallel.
3. lithium ion battery according to claim 1, which is characterized in that negative lug is equipped with multiple, multiple negative lugs
It is arranged in parallel.
4. lithium ion battery according to any one of claim 1-3, which is characterized in that the first connection sheet (3) includes solid
Surely the first connecting portion (31) and second connecting portion (32) connected, first connecting portion (31) surface area are greater than second connecting portion (32)
Surface area, first connecting portion (31) are connect with positive pole ear (2), and second connecting portion (32) is connect with Positive Poles (4).
5. lithium ion battery according to any one of claim 1-3, which is characterized in that the second connection sheet includes fixed connects
The third interconnecting piece and the 4th interconnecting piece connect, third connection surface product be greater than the 4th connection surface product, third interconnecting piece with
Negative lug connection, the 4th interconnecting piece are connect with negative pole.
6. lithium ion battery according to claim 1, which is characterized in that positive pole ear (2) passes through with the first connection sheet (3)
Ultrasonic bonding, the first connection sheet (3) and Positive Poles (4) pass through laser welding.
7. lithium ion battery according to claim 1, which is characterized in that negative lug and the second connection sheet pass through ultrasonic wave
Welding, the second connection sheet and negative pole pass through laser welding.
8. lithium ion battery according to claim 1, which is characterized in that the first connection sheet (3) is made of Al1060-o.
9. lithium ion battery according to claim 1, which is characterized in that the second connection sheet is made of CuT2-M.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821994767.0U CN209282294U (en) | 2018-11-30 | 2018-11-30 | Lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821994767.0U CN209282294U (en) | 2018-11-30 | 2018-11-30 | Lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209282294U true CN209282294U (en) | 2019-08-20 |
Family
ID=67609409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821994767.0U Active CN209282294U (en) | 2018-11-30 | 2018-11-30 | Lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209282294U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114300814A (en) * | 2021-12-17 | 2022-04-08 | 上海瑞浦青创新能源有限公司 | Pole structure for non-isopolar lug and top cover, welding method and lithium battery |
| CN116014375A (en) * | 2023-02-09 | 2023-04-25 | 深圳海润新能源科技有限公司 | Energy storage device and electric equipment |
-
2018
- 2018-11-30 CN CN201821994767.0U patent/CN209282294U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114300814A (en) * | 2021-12-17 | 2022-04-08 | 上海瑞浦青创新能源有限公司 | Pole structure for non-isopolar lug and top cover, welding method and lithium battery |
| CN114300814B (en) * | 2021-12-17 | 2024-04-16 | 上海瑞浦青创新能源有限公司 | Pole structure for unequal pole lugs and top cover, welding method and lithium battery |
| CN116014375A (en) * | 2023-02-09 | 2023-04-25 | 深圳海润新能源科技有限公司 | Energy storage device and electric equipment |
| CN116014375B (en) * | 2023-02-09 | 2023-06-09 | 深圳海润新能源科技有限公司 | Energy storage device and electric equipment |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |