Title:
POSITIVE ELECTRODE SHEET AND ELECTROCHEMICAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/098765
Kind Code:
A1
Abstract:
Provided are a positive electrode sheet and an electrochemical device, the positive electrode sheet comprises a current collector (10), a positive electrode active material layer (14) and a safety coating (12) disposed between the current collector (10) and the positive electrode active material layer (14), wherein: the safety coating (12) comprises a polymer matrix, a conductive material and an inorganic filler, when the safety coating layer (12) and the positive electrode active material layer (14) are collectively referred to as a film layer, the elongation of the film layer is greater than or equal to 30%. The positive electrode sheet is capable of improving the nail-penetrating safety performance of an electrochemical device such as a capacitor, a primary battery or a secondary battery.
Inventors:
ZENG YUQUN (CN)
LIN YONGSHOU (CN)
LI ZHENHUA (CN)
JIN HAIZU (CN)
ZHANG XIAOWEN (CN)
LIN YONGSHOU (CN)
LI ZHENHUA (CN)
JIN HAIZU (CN)
ZHANG XIAOWEN (CN)
Application Number:
PCT/CN2019/118667
Publication Date:
May 22, 2020
Filing Date:
November 15, 2019
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M4/13
Foreign References:
| CN102648546A | 2012-08-22 | |||
| CN102959768A | 2013-03-06 | |||
| CN101471435A | 2009-07-01 | |||
| CN107004516A | 2017-08-01 | |||
| CN109755468A | 2019-05-14 | |||
| CN109755670A | 2019-05-14 | |||
| CN109755463A | 2019-05-14 | |||
| CN109755462A | 2019-05-14 |
Attorney, Agent or Firm:
BEIJING EAST IP LTD. (CN)
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