CN220731689U - Square cell, battery module and energy storage device - Google Patents
Square cell, battery module and energy storage device Download PDFInfo
- Publication number
- CN220731689U CN220731689U CN202322191731.6U CN202322191731U CN220731689U CN 220731689 U CN220731689 U CN 220731689U CN 202322191731 U CN202322191731 U CN 202322191731U CN 220731689 U CN220731689 U CN 220731689U
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- Prior art keywords
- battery cell
- cell body
- battery
- substrate
- square
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- 238000004146 energy storage Methods 0.000 title claims abstract description 11
- 210000005056 cell body Anatomy 0.000 claims abstract description 63
- 210000004027 cell Anatomy 0.000 claims abstract description 41
- 239000000758 substrate Substances 0.000 claims abstract description 41
- 239000006260 foam Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 13
- 230000007547 defect Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Landscapes
- Battery Mounting, Suspending (AREA)
Abstract
The utility model provides a square battery cell, a battery module and an energy storage device. According to the square battery cell, the substrate is arranged at the bottom of the battery cell body and is detachably connected with the battery pack shell through the mounting part, so that the single battery cell body can be conveniently detached and mounted from the battery pack shell, the defect that the whole battery pack is replaced in the prior art can be effectively overcome, the single battery cell body can be conveniently and purposefully replaced when being damaged, and the maintenance cost of the battery cell is reduced.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a square battery cell. The utility model also relates to a battery module provided with the square battery cell and an energy storage device applying the battery module.
Background
In recent years, new energy automobiles are favored by customers, the existing battery structure is mainly fixed by gluing a module and a battery pack lower shell through heat conduction structural adhesive, however, when a battery fails in a battery core unit, the battery core unit cannot be freely detached in the whole battery, so that a damaged battery core cannot be replaced, the whole battery is mostly replaced in the existing production, the disassembly working time and the maintenance difficulty are increased, and the maintenance cost is increased due to scrapping of the whole battery pack.
In addition, the original battery cell fixing support is mostly damaged in the fault repairing process, and even if a good battery cell is replaced, the damaged part of the battery cell fixing support cannot be repaired, so that the strength of the whole battery is affected, and potential safety hazards are increased in the later use of the battery.
Disclosure of Invention
In view of this, the present utility model aims to provide a square battery cell, so as to facilitate the disassembly and assembly of a single battery cell, reduce the maintenance difficulty and reduce the maintenance cost.
In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:
the square battery cell comprises a battery cell body and a substrate adhered to the bottom of the battery cell body, wherein a mounting part is arranged on the substrate and used for detachably mounting and positioning the battery cell body.
Further, the battery cell structure further comprises a binding belt, wherein the binding belt binds the battery cell body and the substrate together along the height direction of the battery cell body.
Further, foam is arranged on the contact surface of the adjacent battery cell body, and the foam is arranged on the binding belt along the length direction of the binding belt, and/or the foam is arranged on the contact surface. Further, the ribbon is one or more arranged at intervals along the length direction of the battery cell body.
Further, a positioning part is arranged between the battery cell body and the substrate, and the positioning part positions the battery cell body on the substrate.
Further, the positioning part comprises a positioning column arranged on the substrate and a positioning hole arranged at the bottom of the battery cell body.
Further, the substrate is provided with an overhanging part which is overhanging relative to the battery cell body;
the mounting portion includes a mounting hole provided on the overhanging portion.
Further, the substrate is a heat conducting metal plate, and/or the width of the substrate along the width direction of the battery cell body is not larger than the width of the battery cell body. Compared with the prior art, the utility model has the following advantages:
according to the square battery cell, the substrate is arranged at the bottom of the battery cell body and is detachably connected with the battery pack shell through the mounting part, so that the single battery cell body can be conveniently detached and mounted from the battery pack shell, the defect that the whole battery pack is replaced in the prior art can be effectively overcome, the single battery cell body can be conveniently and purposefully replaced when being damaged, and the maintenance cost of the battery cell is reduced.
In addition, tie up electric core body and base plate through the ribbon, can further improve the connection effect of base plate and electric core body. Through set up the bubble cotton in the ribbon outside, can prevent effectively that the electricity from rubbing each other between the core to provide the clearance between the adjacent electric core, be favorable to cycle performance.
In addition, through setting up locating hole and reference column, can effectively guarantee the fixed position of electric core connection on the base plate to the regularity when guaranteeing the battery module and putting. And through setting up overhanging portion on the base plate to do benefit to the setting of mounting hole, be convenient for the connection of base plate and battery package shell, and do benefit to the dismantlement space to the installation department, improve the convenience when changing the electric core.
Another object of the present utility model is to propose a battery module comprising a plurality of square cells as described above arranged side by side.
In addition, the utility model also provides an energy storage device which comprises the battery module or the square battery cell.
According to the battery module and the energy storage device, the square battery cells are arranged, so that the maintenance and the replacement of the battery module can be facilitated, the single battery cell with the fault can be quickly replaced, the quality of the battery module is improved, the maintenance cost is reduced, the maintenance convenience of the energy storage device is improved, and the mass production is facilitated.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
fig. 1 is a schematic perspective view of a square battery cell according to an embodiment of the present utility model;
fig. 2 is a schematic perspective view of a battery module according to an embodiment of the present utility model;
fig. 3 is a schematic diagram illustrating a connection structure between a battery module and a part of a battery pack case according to an embodiment of the utility model.
Reference numerals illustrate:
1. square cell, 2, battery pack shell;
101. a cell body; 102. a substrate; 103. a tie;
1011. positioning holes;
1021. a mounting part; 1022. positioning columns; 1023. an overhanging portion.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus 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 utility model. In addition, the terms "first," "second," are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, in the description of the present utility model, the terms "mounted," "connected," and "connected," are to be construed broadly, unless otherwise specifically defined. For example, the connection can be fixed connection, detachable connection or integrated connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in combination with specific cases.
The utility model will be described in detail below with reference to the drawings in connection with embodiments.
The present embodiment relates to a square battery cell 1, where the square battery cell 1 includes a battery cell body 101 and a substrate 102 adhered to the bottom of the battery cell body 101, and a mounting portion 1021 is provided on the substrate 102, and the mounting portion 1021 is used for detachably mounting and positioning the battery cell body 101 in a battery pack case 2.
The square electric core 1 of this embodiment sets up base plate 102 through in electric core body 101 bottom, and base plate 102 can dismantle with battery package casing 2 through installation department 1021 and be connected to the dismantlement and the installation in the battery package casing 2 of single electric core body 101 follow, thereby can effectively improve the defect that whole battery package was changed among the prior art, and be convenient for carry out the pointedly change when finding single electric core body 101 damage, reduce electric core cost of maintenance.
Based on the above overall description, as shown in fig. 1 and 2, an exemplary structure of the square battery cell 1 of the present embodiment is formed by molding the battery cell body 101 into a rectangular parallelepiped structure, and molding the substrate 102 into a rectangular parallelepiped plate-like structure and disposed below the battery cell body 101. Specifically, the upper end of the cell body 101 has a positive electrode post and a negative electrode post, which are the same as the battery structure in the prior art.
As shown in fig. 1, before the substrate 102 is connected to the battery cell body 101 in this embodiment, a layer of heat-conducting structural adhesive is coated on the substrate 102 at a position corresponding to the battery cell body 101, and the heat-conducting structural adhesive can be selected from adhesive between the module and the battery pack case 2 in the prior art.
In addition, the substrate 102 of the present embodiment adopts a heat conductive metal plate made of copper, aluminum, stainless steel, etc., and by providing the substrate 102 made of the heat conductive metal plate, it is convenient to transfer the heat in the battery cell body 101 to the outside, which is beneficial to the heat conduction in the battery module.
In addition, the width of the substrate 102 in this embodiment is equal to the width of the cell body 101, or in other embodiments, the width of the substrate 102 may be smaller than the width of the cell body 101, so as to facilitate connection between adjacent cell bodies 101 and improve compactness of cell connection.
As a preferred embodiment, the square battery cell 1 of the present embodiment further includes a tie 103, and the tie 103 ties the battery cell body 101 and the substrate 102 together in the height direction of the battery cell body 101. As shown in fig. 1, a band 103 is provided on the cell body 101 so as to be bound along the periphery of the cell body 101 and the substrate 102. The cell body 101 and the substrate 102 are bundled by the tie 103, and the connection effect between the substrate 102 and the cell body 101 can be further improved.
Preferably, foam is provided on the contact surface of the adjacent cell body 101, and is arranged on the ribbon 103 along the length direction of the ribbon 103. Specifically, the portion of ribbon 103 along the height direction arrangement of the cell body is provided with foam, and foam is arranged on one side of ribbon 103 opposite to the cell body.
Foam is provided on the outside of the band 103, in particular a foam strip or a foam sheet. Meanwhile, foam can also be arranged on the contact surface. Through set up the bubble cotton in ribbon 103 outside, can effectively prevent mutual friction between the electric core to provide the clearance between the adjacent electric core, be favorable to cycle performance.
Preferably, the plurality of tie bars 103 are arranged at intervals along the length direction of the cell body 101. As shown in fig. 1, in order to further achieve a better fixing effect, two bands 103 are disposed at intervals in this embodiment, however, in other embodiments, the number of bands 103 may be plural, and may be adaptively increased or decreased according to the length of the cell body 101.
In addition, in order to facilitate the regular arrangement of the square-shaped battery cells 1 after the installation, a positioning portion is provided between the battery cell body 101 and the substrate 102, and the positioning portion positions the battery cell body 101 on the substrate 102. Further, the positioning portion includes a positioning post 1022 disposed on the substrate 102, and a positioning hole 1011 disposed at the bottom of the cell body 101.
As shown in fig. 1 and 2, the positioning columns 1022 in the present embodiment are cylinders fixedly connected to the substrate 102, the positioning columns 1022 protrude upward from the substrate 102, positioning holes 1011 are formed at four corners of the cell body 101, and accordingly, the positioning columns 1022 are disposed at positions corresponding to the positioning holes 1011.
Through setting up locating hole 1011 and reference column 1022, can effectively guarantee the fixed position of electric core connection on base plate 102 to guarantee the regularity when the battery module is put. Moreover, through the location of reference column 1022 and locating hole 1011, when base plate 102 is connected with battery package casing 2, need not to carry out the position adjustment to square electric core 1, realize the swiftly of electric core installation.
As one possible embodiment, the substrate 102 has overhanging portions 1023 that overhang the cell body 101. The mounting portion 1021 includes a mounting hole provided on the overhanging portion 1023. In a specific structure, as shown in fig. 1 to 3, the overhanging portion 1023 of the present embodiment protrudes from both sides of the cell body 101 along a length square.
In addition, the mounting holes are through holes formed on the substrate 102 and are formed on the overhanging portion 1023 corresponding to the two sides of the cell body 101. As a specific embodiment, as shown in fig. 3, a threaded hole corresponding to the mounting hole is provided in the battery case, and a bolt is screwed into the threaded hole by using a tool so that the square battery cell 1 is fixedly connected in the battery pack case 2. Through set up overhanging portion 1023 on base plate 102 to do benefit to the setting of mounting hole, be convenient for the connection of base plate 102 and battery package shell, and do benefit to the dismantlement space to installation department 1021, improve the convenience when changing the electric core.
Based on the same design concept, the present embodiment also relates to a battery module including a plurality of square cells 1 as described above arranged side by side.
In addition, the embodiment also relates to an energy storage device, which comprises the battery module.
According to the battery module and the energy storage device, the square battery core 1 is arranged, so that the maintenance and the replacement of the battery module can be facilitated, a single battery core with faults can be quickly replaced, the quality of the battery module is improved, the maintenance cost is reduced, the maintenance convenience of the energy storage device is improved, and the mass production is facilitated.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (10)
1. A square cell is characterized in that:
the battery cell comprises a battery cell body and a substrate adhered to the bottom of the battery cell body, wherein a mounting part is arranged on the substrate and used for detachably mounting and positioning the battery cell body.
2. The square cell of claim 1, wherein:
the battery cell structure further comprises a binding belt, wherein the binding belt binds the battery cell body and the substrate together along the height direction of the battery cell body.
3. The square cell of claim 2, wherein:
foam is arranged on the contact surface of the adjacent battery cell body, and is arranged on the binding belt along the length direction of the binding belt, and/or is arranged on the contact surface.
4. The square cell of claim 2, wherein:
the ribbon is one or more arranged at intervals along the length direction of the battery cell body.
5. The square cell of claim 1, wherein:
and a positioning part is arranged between the battery cell body and the substrate, and the positioning part is used for positioning the battery cell body on the substrate.
6. The square cell of claim 5, wherein:
the positioning part comprises a positioning column arranged on the substrate and a positioning hole arranged at the bottom of the battery cell body.
7. The square cell of any one of claims 1 to 6, wherein:
the substrate is provided with an overhanging part which is overhanging relative to the battery cell body;
the mounting portion includes a mounting hole provided on the overhanging portion.
8. The square cell of claim 7, wherein:
the substrate is a heat-conducting metal plate, and/or the width of the substrate along the width direction of the battery cell body is not larger than the width of the battery cell body.
9. A battery module, characterized in that:
comprising a plurality of square cells according to any one of claims 1 to 8 arranged side by side.
10. An energy storage device, characterized in that:
comprising a battery module according to claim 9 or a square cell according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322191731.6U CN220731689U (en) | 2023-08-14 | 2023-08-14 | Square cell, battery module and energy storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322191731.6U CN220731689U (en) | 2023-08-14 | 2023-08-14 | Square cell, battery module and energy storage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220731689U true CN220731689U (en) | 2024-04-05 |
Family
ID=90525363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322191731.6U Active CN220731689U (en) | 2023-08-14 | 2023-08-14 | Square cell, battery module and energy storage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220731689U (en) |
-
2023
- 2023-08-14 CN CN202322191731.6U patent/CN220731689U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |