Battery cell mounting base and battery module

Patent metadata

Field	Value
Publication number	US-2025038335-A1
Application number	US-202418914675-A
Country	US
Kind code	A1
Filing date	Oct 14, 2024
Priority date	Apr 12, 2022
Publication date	Jan 30, 2025
Grant date	—

Abstract

Provided are a battery cell mounting base and a battery module. The battery cell mounting base includes a lower cover, the lower cover has a limit groove for accommodating a battery cell, the battery cell is secured in the limit groove, and a connecting portion is provided on a side of the lower cover away from the battery cell, and the lower cover is capable of being secured to a battery box through the connecting portion.

First claim

What is claimed is:

1 . A battery cell mounting base, comprising a lower cover, wherein the lower cover has a limit groove for accommodating a battery cell, the battery cell is secured in the limit groove, a connecting portion is provided on a side of the lower cover away from the battery cell, and the lower cover is secured to a battery box through the connecting portion.

2 . The battery cell mounting base according to claim 1 , wherein a first snap is provided on one of the lower cover or the battery box, a first clamping groove is provided on the other one of the lower cover or the battery box, the first snap is engaged with the first clamping groove, and the connecting portion is the first snap or the first clamping groove which is provided on the lower cover.

3 . The battery cell mounting base according to claim 1 , wherein the connecting portion is disposed on a bottom surface of the lower cover.

4 . The battery cell mounting base according to claim 1 , wherein a first adhesive storage groove is opened on an inner wall of the limit groove.

5 . The battery cell mounting base according to claim 4 , wherein the first adhesive storage groove is opened on a bottom of the inner wall of the limit groove.

6 . The battery cell mounting base according to claim 4 , wherein a second adhesive storage groove is provided on the side of the lower cover away from the battery cell, and the second adhesive storage groove filled with structural adhesive is capable of bonding the lower cover and the battery box.

7 . The battery cell mounting base according to claim 6 , wherein the second adhesive storage groove is disposed on a bottom surface of the lower cover.

8 . The battery cell mounting base according to claim 1 , wherein the lower cover comprises a bottom plate and a plurality of side plates annularly arranged and connected to an outer periphery of the bottom plate, the plurality of side plates are disposed at intervals, and the bottom plate and the plurality of side plates are encircled to form the limit groove.

9 . The battery cell mounting base according to claim 8 , wherein a limit protrusion is provided on an outer periphery surface of each of the plurality of side plates.

10 . The battery cell mounting base according to claim 1 , wherein a first electrode and a second electrode of the battery cell are located on a same side of the battery cell, the battery cell mounting base further comprises an upper cover disposed opposite to the lower cover, the upper cover covers the side of the batter cell where the first electrode and the second electrode are disposed, and the first electrode and the second electrode are exposed from the upper cover.

11 . The battery cell mounting base according to claim 10 , wherein the second electrode protrudes from the first electrode, the upper cover comprises a first annular cylinder and a second annular cylinder connected to a cylinder mouth at an end of the first annular cylinder, the first annular cylinder is sleeved on an outer periphery of the battery cell, the second annular cylinder is sleeved on the second electrode, the first electrode is exposed from the cylinder mouth of the first annular cylinder, and the second electrode is exposed from a cylinder mouth of the second annular cylinder.

12 . The battery cell mounting base according to claim 11 , wherein a baffle plate is disposed at an end portion of the first annular cylinder, the second annular cylinder is connected to the baffle plate through a connecting plate, and the connecting plate and the baffle plate abut against a part of the first electrode.

13 . The battery cell mounting base according to claim 11 , wherein the battery cell is a cylindrical battery cell, and an inner wall of the first annular cylinder is circular.

14 . The battery cell mounting base according to claim 11 , wherein the second electrode is cylindrical, and an inner wall of the second annular cylinder is circular.

15 . The battery cell mounting base according to claim 13 , wherein the second electrode is cylindrical, and an inner wall of the second annular cylinder is circular.

16 . The battery cell mounting base according to claim 11 , wherein a second snap and a second clamping groove are provided in a circumferential direction of the first annular cylinder.

17 . The battery cell mounting base according to claim 16 , wherein the second snap and the second clamping groove are disposed opposite to each other.

18 . A battery module, comprising a battery box, a busbar, a battery cell and a battery cell mounting base, wherein a plurality of battery cells and a plurality of battery cell mounting bases are provided, and the busbar is connected to a first electrode of a battery cell among the plurality of battery cells and a second electrode of another battery cell among the plurality of battery cells;
wherein the battery cell mounting base comprises a lower cover, the lower cover has a limit groove for accommodating the battery cell, the battery cell is secured in the limit groove, a connecting portion is provided on a side of the lower cover away from the battery cell, and the lower cover is secured to the battery box through the connecting portion.

19 . The battery module according to claim 18 , wherein a honeycomb panel is disposed inside the battery box, and the lower cover is mounted in an accommodating groove of the honeycomb panel.

20 . The battery module according to claim 18 , wherein a first snap is provided on one of the lower cover or the battery box, a first clamping groove is provided on the other one of the lower cover or the battery box, the first snap is engaged with the first clamping groove, and the connecting portion is the first snap or the first clamping groove which is provided on the lower cover.

Assignees

• Eve Power Co Ltd

Inventors

• Qiu Wencong
• Li Fan
• Chen Zhiwei
• Chen Zhaohai
• Feng Yanqiang

Classifications

• H01M50/258

  Modular batteries; Casings provided with means for assembling · CPC title

• H01M50/267

  having means for adapting to batteries or cells of different types or different sizes · CPC title

• H01M50/233

  characterised by physical properties of casings or racks, e.g. dimensions · CPC title

• H01M50/213

  adapted for cells having curved cross-section, e.g. round or elliptic (H01M50/209, H01M50/216 take precedence) · CPC title

• H01M50/505

  comprising a single busbar · CPC title