Title:
ELECTRODE SHEET, ELECTROCHEMICAL DEVICE, AND DEVICE THEREOF
Document Type and Number:
WIPO Patent Application WO/2020/258810
Kind Code:
A1
Abstract:
An electrode sheet, an electrochemical device, and a device thereof. The electrode sheet comprises current collectors (10, 20), electrode active material layers (11, 21) disposed on at least one surface of the current collectors (10, 20), and an electrical connection member (511) electrically connected to the current collectors (10, 20). The electrode active material layers (11, 21) are disposed on the main body portions of the current collectors (10, 20), and the described region is referred to as a film region (A); the electrical connection member (511) is welded to an edge of the current collectors (10, 20) for connection to the current collectors (10, 20), and the welding region is referred to as a transfer welding region (C); a transitioning region of uncoated electrode active material layers (11, 21) of the current collectors (10, 20) between the film region (A) and the transfer welding region (C) is referred to as an extending region (B), and the current collectors (10, 20) as composite current collectors; in addition, the electrode sheet further comprises a thermally conductive layer (15), and the thermally conductive layer (15) covers at least one portion of the electrical connection member (511) in the transfer welding region (C).
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Inventors:
LI WEI (CN)
XUE QINGRUI (CN)
LI JING (CN)
ZHANG ZIGE (CN)
ZHANG YANG (CN)
LU YANG (CN)
WANG PENGXIANG (CN)
XUE QINGRUI (CN)
LI JING (CN)
ZHANG ZIGE (CN)
ZHANG YANG (CN)
LU YANG (CN)
WANG PENGXIANG (CN)
Application Number:
PCT/CN2019/129807
Publication Date:
December 30, 2020
Filing Date:
December 30, 2019
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M4/66
Foreign References:
| CN208955106U | 2019-06-07 | |||
| CN109873160A | 2019-06-11 | |||
| CN109873165A | 2019-06-11 | |||
| CN108682788A | 2018-10-19 | |||
| CN108767262A | 2018-11-06 | |||
| US7081142B1 | 2006-07-25 |
Other References:
See also references of EP 3913711A4
Attorney, Agent or Firm:
BEIJING ZHICHEN INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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