Title:
BATTERY MODULE
Document Type and Number:
WIPO Patent Application WO/2021/000336
Kind Code:
A1
Abstract:
The present application relates to a battery module, comprising: two or more battery units, wherein each of the battery units comprises a battery cell, the battery cell is provided with two end portions opposite each other in the length direction of the battery cell, and the two or more battery units are arranged side by side in the thickness direction of the battery cell; and in two adjacent battery units, a first gap is formed between two battery cells close to each other, and the first gap extends from an end portion in the length direction, with in a direction from the end portion to the center of the battery cell, the size of the first gap being gradually reduced in the thickness direction. The battery module further comprises: a cushion pad, wherein the cushion pad is arranged between the two adjacent battery units, and the cushion pad is arranged in the first gap and is in contact with the end portions of the battery cell. According to the battery module in the embodiments of the present application, a gap between a first pole piece and a second pole piece can be effectively reduced by means of a cushion pad, and the possibility of a lithium precipitation phenomenon occurring at an end portion of a battery cell is reduced, thereby improving the whole cycle performance of the battery module.
Inventors:
WANG YUWEN (CN)
YANG KAI (CN)
LIN GUANGLIANG (CN)
YANG KAI (CN)
LIN GUANGLIANG (CN)
Application Number:
PCT/CN2019/095252
Publication Date:
January 07, 2021
Filing Date:
July 09, 2019
Export Citation:
Assignee:
JIANGSU CONTEMPORARY AMPEREX TECH LTD (CN)
International Classes:
H01M10/42
Foreign References:
| CN109428024A | 2019-03-05 | |||
| JP2000223096A | 2000-08-11 | |||
| CN109411651A | 2019-03-01 |
Other References:
See also references of EP 3790097A4
Attorney, Agent or Firm:
BEIJING EAST IP LTD. (CN)
Download PDF: