CN211957821U - Lamination electricity core anchor clamps - Google Patents
Lamination electricity core anchor clamps Download PDFInfo
- Publication number
- CN211957821U CN211957821U CN202020389669.5U CN202020389669U CN211957821U CN 211957821 U CN211957821 U CN 211957821U CN 202020389669 U CN202020389669 U CN 202020389669U CN 211957821 U CN211957821 U CN 211957821U
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- CN
- China
- Prior art keywords
- clamp
- electricity core
- lamination electricity
- laminated cell
- laminated
- 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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- 238000003475 lamination Methods 0.000 title claims abstract description 34
- 230000005611 electricity Effects 0.000 title claims abstract description 32
- 230000000670 limiting effect Effects 0.000 claims description 17
- 230000000694 effects Effects 0.000 abstract description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical class [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000001351 cycling effect Effects 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000008961 swelling Effects 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
-
- 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
- Battery Mounting, Suspending (AREA)
Abstract
The utility model belongs to the technical field of the battery, especially, relate to a lamination electricity core anchor clamps, including being used for spacingly the curb plate of lamination electricity core side, the edge of curb plate be provided with to spacing portion of extension in the middle of the lamination electricity core, spacing portion with curb plate fixed connection. The utility model provides a lamination electricity core anchor clamps design is simple and convenient, and is with low costs, can use single electric core alone, can show the marginal expansion that restraines electric core to reduce the marginal effect of lamination electricity core, improve the life cycle of electric core, also can wrap the use to electric core in pack, can improve the circulation uniformity of electric core package. In addition, the clamp has a protection effect on four sides of the battery cell, and the safety of the battery cell is improved.
Description
Technical Field
The utility model belongs to the technical field of the battery, especially, relate to a lamination electricity core anchor clamps.
Background
The soft-pack laminated lithium ion battery has the characteristics of high multiplying power, high energy density and safety, so that the soft-pack laminated lithium ion battery is widely applied to the fields of power automobiles and energy storage. Compared with a winding type lithium ion battery, the laminated type lithium ion battery is very easy to peel off due to no winding tension between the pole pieces, particularly four edges of the laminated battery cell. In addition, the edge cutting of the metal current collector is exposed, so that the electric conductivity is better than that of other areas, the current density of the edge of the laminated lithium ion battery is higher, lithium separation is easy to generate, the thickness of the laminated lithium ion battery is increased due to the lithium separation, the polarization is increased, and the lithium separation is further accelerated. Laminated cells are therefore prone to four-sided bulging during cycling, which can exacerbate cell degradation.
SUMMERY OF THE UTILITY MODEL
One of the purposes of the utility model lies in: the laminated battery cell clamp can inhibit the edge of the laminated battery cell from swelling, improve the cycle performance of the battery cell and improve the safety of the laminated battery cell.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a lamination electricity core anchor clamps, is including being used for spacingly the curb plate of lamination electricity core side, the edge of curb plate be provided with to the spacing portion that extends in the middle of the lamination electricity core, spacing portion with curb plate fixed connection.
As an improvement of lamination electricity core anchor clamps, it is relative two distance between the spacing portion is L, thickness when lamination electricity core is full of electricity is T, L and T satisfy relational expression 0.9T ≤ L ≤ 1.15T. The distance between the two side plates is set in the range, and even if the edge of the laminated battery core expands, the laminated battery core can be fixed by the limiting part, so that the polarization is prevented from being further increased.
As an improvement of lamination electricity core anchor clamps, the width of spacing portion is 2 ~ 35 mm.
As an improvement of lamination electricity core anchor clamps, the width of spacing portion is 5 ~ 20 mm. The width setting of spacing portion can effectively prevent lamination electricity core edge inflation in this within range to practice thrift the cost.
As an improvement of lamination electricity core anchor clamps, the thickness of side plate is 0.08 ~ 3.0mm, the thickness of spacing portion is 0.5 ~ 2.0 mm. The side plate and the limiting part are made of die steel, 45# steel or alloy materials, the hardness is higher than HRC30, the edge expansion of the laminated battery cell can be effectively prevented, and the limiting effect is achieved.
As an improvement of the laminated cell clamp of the present invention, the clamp is configured as a "type". A "" -type fixture may be used when cycling individual laminated cells.
As an improvement of lamination electricity core anchor clamps, anchor clamps set up to "mountain" type. When two laminated battery cores are stacked up and down, a mountain-shaped clamp is adopted.
As an improvement of lamination electricity core anchor clamps, anchor clamps set up to "worker" type. When two laminated battery cores are transversely arranged in parallel, an I-shaped clamp is adopted.
As an improvement of lamination electricity core anchor clamps, anchor clamps set up to the combination of a plurality of "", "mountain" type and "worker" type. When a plurality of laminated battery cores are superposed up and down, the clamp can be provided with a plurality of "" fixed connection as a whole.
As an improvement of lamination electricity core anchor clamps, still include the bottom plate, the bottom plate with curb plate fixed connection. The bottom plate is used for limiting expansion of the bottom of the laminated battery core. Preferably, the bottom plate further extends to the middle of the laminated cell to form a fixing part.
The utility model has the advantages of but not limited to: the utility model provides a lamination electricity core anchor clamps, including being used for spacingly the curb plate of lamination electricity core side, the edge of curb plate be provided with to spacing portion of extension in the middle of the lamination electricity core, spacing portion with curb plate fixed connection. The utility model provides a lamination electricity core anchor clamps design is simple and convenient, and is with low costs, can use single electric core alone, can show the marginal expansion that restraines electric core to reduce the marginal effect of lamination electricity core, improve the life cycle of electric core, also can wrap the use to electric core in pack, can improve the circulation uniformity of electric core package. In addition, the clamp has a protection effect on four sides of the battery cell, and the safety of the battery cell is improved.
Drawings
Fig. 1 is a cross-sectional view of a laminated cell holder in example 1.
Fig. 2 is one of the schematic diagrams of the assembly of the laminated cell holder and the laminated cell in embodiment 1.
Fig. 3 is a second schematic view of the assembly of the laminated cell fixture and the laminated cell in example 1.
Fig. 4 is a cross-sectional view of a laminated cell holder of example 2.
Fig. 5 is a schematic view of assembly of the laminated cell fixture and the laminated cell in embodiment 2.
Fig. 6 is a cross-sectional view of a laminated cell holder of example 3.
Fig. 7 is a schematic view of assembly of the laminated cell fixture and the laminated cell in embodiment 3.
Fig. 8 is a cross-sectional view of a laminated cell holder of example 4.
Fig. 9 is a schematic view of assembly of the laminated cell holder and the laminated cell in example 4.
In the figure: the battery comprises a side plate 1, a limiting part 11, a laminated battery cell 2 and a fixing part 3.
Detailed Description
As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, within which a person skilled in the art can solve the technical problem to substantially achieve the technical result.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", horizontal "and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The present invention will be described in further detail with reference to the accompanying drawings, which are not intended to limit the present invention.
Example 1
As shown in fig. 1 to 3, the present embodiment provides a lamination battery cell clamp, including a side plate 1 for limiting a side edge of a lamination battery cell 2, an edge of the side plate 1 is provided with a limiting portion 11 extending towards the middle of the lamination battery cell 2, and the limiting portion 11 is fixedly connected with the side plate 1.
Furthermore, the distance between the two opposite limiting parts 11 is L, the thickness of the laminated battery cell 2 when the laminated battery cell is fully charged is T, and L and T satisfy the relation that L is not less than 0.9 × T and not more than 1.15 × T. Setting the distance between the two side plates 1 within this range, even if the edge of the laminated cell 2 expands, it is fixed by the stopper 11, preventing further increase in polarization.
Further, the width of the limiting part 11 is 2-35 mm.
Furthermore, the width of the limiting part 11 is 5-20 mm. The width setting of spacing portion 11 is in this within range, can effectively prevent lamination electricity core 2 edge inflation to practice thrift the cost.
Furthermore, the thickness of the side plate 1 is 0.08-3.0 mm, and the thickness of the limiting part 11 is 0.5-2.0 mm. Curb plate 1 and spacing portion 11 all adopt the mould steel material, can effectively prevent the inflation of lamination electricity core 2, play spacing effect.
Further, the clamp is provided in a "type". The "" -type jig can be used when a single laminated cell 2 is subjected to cycle testing.
Furthermore, the device also comprises a bottom plate which is fixedly connected with the side plate 1. Wherein, the bottom plate is used for limiting the expansion of the bottom of the laminated cell 2. Preferably, the bottom plate further extends to the middle of the laminated cell 2 to form a fixing portion 3.
Example 2
As shown in fig. 4 to 5, the present embodiment provides a laminated cell fixture, which is different from embodiment 1 in that the fixture is configured as a "hill". When the two laminated battery cores 2 are superposed up and down, a mountain-shaped clamp is adopted.
The rest is the same as embodiment 1, and the description is omitted here.
Example 3
As shown in fig. 6 to 7, the present embodiment provides a laminated cell fixture, which is different from embodiment 1 in that the fixture is configured as an "i" type. When the two laminated battery cores 2 are transversely arranged in parallel, an I-shaped clamp is adopted.
The rest is the same as embodiment 1, and the description is omitted here.
Example 4
As shown in fig. 8 to 9, the present embodiment provides a laminated cell fixture, which is different from embodiment 1 in that the fixture is provided with a plurality of "u" shaped combinations. When a plurality of laminated battery cores 2 are stacked up and down, the fixture can be provided with a plurality of "" fixed connections as a whole.
The rest is the same as embodiment 1, and the description is omitted here.
While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive of other embodiments, and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed above, or as otherwise known in the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (10)
1. The utility model provides a lamination electricity core anchor clamps, its characterized in that, is including being used for spacingly the curb plate of lamination electricity core side, the edge of curb plate be provided with to the spacing portion that extends in the middle of the lamination electricity core, spacing portion with curb plate fixed connection.
2. The laminated cell clamp of claim 1, wherein a distance between the two opposite limiting portions is L, a thickness of the laminated cell when the laminated cell is fully charged is T, and L and T satisfy a relation of 0.9 × T ≤ L ≤ 1.15 × T.
3. The laminated cell clamp of claim 1, wherein the width of the restraint portion is 2-35 mm.
4. The laminated cell clamp of claim 3, wherein the width of the limiting portion is 5-20 mm.
5. The laminated cell clamp of claim 1, wherein the side plates are 0.08-3 mm thick, and the limiting portion is 0.5-2.0mm thick.
6. The laminated cell clamp of claim 1, wherein the clamp is configured in a "type".
7. The laminated cell clamp of claim 1, wherein the clamp is provided in a "hill" shape.
8. The laminated cell clamp of claim 1, wherein the clamp is provided in the form of an "i" type.
9. The laminated cell clamp of claim 1, wherein the clamp is provided in a combination of a plurality of "n", "hill" and "i" shapes.
10. The laminated cell clamp of claim 1, further comprising a bottom plate fixedly connected to the side plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020389669.5U CN211957821U (en) | 2020-03-25 | 2020-03-25 | Lamination electricity core anchor clamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020389669.5U CN211957821U (en) | 2020-03-25 | 2020-03-25 | Lamination electricity core anchor clamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211957821U true CN211957821U (en) | 2020-11-17 |
Family
ID=73185558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020389669.5U Active CN211957821U (en) | 2020-03-25 | 2020-03-25 | Lamination electricity core anchor clamps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211957821U (en) |
-
2020
- 2020-03-25 CN CN202020389669.5U patent/CN211957821U/en active Active
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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: Laminated electric core clamp Effective date of registration: 20210729 Granted publication date: 20201117 Pledgee: Bank of Changsha Co.,Ltd. Zhuzhou branch Pledgor: HUNAN LIFANG NEW ENERGY SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2021980007086 |
|
| 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 |
Date of cancellation: 20230208 Granted publication date: 20201117 Pledgee: Bank of Changsha Co.,Ltd. Zhuzhou branch Pledgor: HUNAN LIFANG NEW ENERGY SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2021980007086 |
|
| 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 laminated cell fixture Effective date of registration: 20230829 Granted publication date: 20201117 Pledgee: Agricultural Bank of China Limited Zhuzhou branch Pledgor: HUNAN LIFANG NEW ENERGY SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2023980054119 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20201117 Pledgee: Agricultural Bank of China Limited Zhuzhou branch Pledgor: HUNAN LIFANG NEW ENERGY SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2023980054119 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A laminated battery cell fixture Granted publication date: 20201117 Pledgee: Agricultural Bank of China Limited Zhuzhou branch Pledgor: HUNAN LIFANG NEW ENERGY SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2024980042821 |