电芯侧板和电芯

Abstract

本实用新型涉及电池技术领域，提供一种电芯侧板和电芯，所述电芯侧板包括：第一板体，具有相背的第一板面和第二板面；第二板体，具有相背的第三板面和第四板面，所述第一板体和所述第二板体装配连接，所述第一板面和所述第三板面平齐，所述第二板面和所述第四板面平齐。本实用新型可根据电芯的极组的实际长度选配合适长度的第一板体和第二板体进行装配，得到与极组尺寸相适应的电芯侧板，提高了电芯侧板的通用性，且容易满足电芯侧板的翘曲度需求。

Claims

1. An electrode side plate characterized by comprising: include: The first plate has a first plate surface and a second plate surface that are opposite to each other; The second plate has a third plate surface and a fourth plate surface facing away from each other. The first plate and the second plate are assembled and connected. The first plate surface and the third plate surface are flush, and the second plate surface and the fourth plate surface are flush.

2. The cell side plate of claim 1, wherein The first plate has a mounting surface, and the mounting surface and the first plate surface are located on the same side of the first plate and have a height difference; The second plate includes a connected main board and an assembly board. One side of the assembly board is flush with one side of the main board to form the third plate surface, and the other side of the main board forms the fourth plate surface. There is a height difference between the other side of the assembly board and the fourth plate surface, and the assembly board is in contact with the assembly surface.

3. The cell side plate of claim 2, wherein, One of the assembly surface and the assembly plate is provided with a snap-fit ​​part, and the other is provided with a snap-fit ​​groove, wherein the snap-fit ​​part is snapped into the snap-fit ​​groove.

4. The cell side plate of claim 3, wherein The snap-fit ​​part has a connecting part and a limiting part. The limiting part is provided at one end of the connecting part and protrudes from one side of the connecting part in the length direction. When the snap-fit ​​part is snapped into the slot, the limiting part is limited to the slot.

5. The cell side plate of claim 4, wherein The snap-fit ​​portion includes two connecting portions arranged opposite each other, and each of the two connecting portions is connected to a limiting portion, with the limiting portions on the two connecting portions arranged back to back.

6. The cell side plate of claim 3, wherein There are multiple snap-fit ​​parts and multiple slots, and each snap-fit ​​part and multiple slots are arranged in a matrix.

7. The cell side plate of claim 2, wherein The first plate has an assembly groove recessed on one side corresponding to the first plate surface. The assembly groove has a first groove wall and a second groove wall opposite to each other in the width direction of the first plate. The assembly surface forms the bottom of the assembly groove and connects between the first groove wall and the second groove wall. The assembly plate is located in the assembly groove, and the first groove wall and the second groove wall are in a limiting fit with the assembly plate.

8. The cell side plate of claim 7, wherein The clearance between the wall of the assembly groove and the assembly plate is 0.1mm to 0.2mm.

9. The cell side plate of claim 1, wherein Both the first plate and the second plate are provided with positioning holes, which are suitable for assembling and positioning the insulating film of the battery cell with positioning components.

10. An electric cell characterized by, include: The housing, cover plate, electrode assembly, insulating film, and cell side plate as described in any one of claims 1-9; The housing has an opening, the cover plate covers the opening and surrounds the housing to form a receiving cavity, the electrode assembly is housed in the receiving cavity, the insulating film is disposed between the housing and the electrode assembly, and the side plate is disposed between the insulating film and the electrode assembly or between the insulating film and the housing.

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