Title:
POSITIVE ELECTRODE PLATE AND SECONDARY BATTERY COMPRISING SAME, AND BATTERY MODULE, BATTERY PACK AND ELECTRIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/097565
Kind Code:
A1
Abstract:
Provided in the present application are a positive electrode plate and a secondary battery comprising same, and a battery module, a battery pack and an electric apparatus. The positive electrode plate in the present application comprises a current collector, a resistor layer and a positive electrode active material layer, wherein the current collector comprises a coating area, and a non-coating area other than the coating area; the resistor layer comprises a conductive agent and a binder, but does not comprise a positive electrode active material; the positive electrode active material layer comprises a positive electrode active material, a conductive agent and a binder; the resistance of the resistor layer is greater than the resistance of the positive electrode active material layer, and the resistor layer is arranged on the current collector; and in a cross section of the positive electrode plate, a projection of part of the positive active material layer on the current collector overlaps with a projection of the resistor layer on the current collector, but a projection of the other part on the current collector does not overlap with the projection of the resistor layer on the current collector.
Inventors:
LI QUANGUO (CN)
LIU QIAN (CN)
YE YONGHUANG (CN)
HE JIANFU (CN)
HUANG FAJUN (CN)
YU CHUNPENG (CN)
XIAO DEJUN (CN)
LIU QIAN (CN)
YE YONGHUANG (CN)
HE JIANFU (CN)
HUANG FAJUN (CN)
YU CHUNPENG (CN)
XIAO DEJUN (CN)
Application Number:
PCT/CN2021/134819
Publication Date:
June 08, 2023
Filing Date:
December 01, 2021
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M4/139
Foreign References:
| CN107004836A | 2017-08-01 | |||
| CN107210417A | 2017-09-26 | |||
| CN102856579A | 2013-01-02 | |||
| CN102272982A | 2011-12-07 | |||
| JPH1173947A | 1999-03-16 | |||
| CN104620423A | 2015-05-13 | |||
| CN105703010A | 2016-06-22 | |||
| CN112825621A | 2021-05-21 | |||
| GB190772016A |
Attorney, Agent or Firm:
SHANGCHENG & PARTNERS (CN)
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