Title:
POSITIVE ELECTRODE CURRENT COLLECTOR, AND POSITIVE ELECTRODE PLATE, BATTERY, BATTERY MODULE, BATTERY PACK AND APPARATUS COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2022/041254
Kind Code:
A1
Abstract:
The present application relates to a positive electrode current collector, and a positive electrode plate, a battery, a battery module, a battery pack and an apparatus comprising the positive electrode current collector. Specifically, the present application discloses a positive electrode current collector, comprising an organic support layer and an aluminum-based conductive layer provided on at least one surface of the organic support layer; the aluminum-based conductive layer contains aluminum (Al) and at least one modifier element selected from oxygen (O), nitrogen (N), fluorine (F), boron (B), sulfur (S), and phosphorus (P); and after a surface passivation layer is removed by etching, the aluminum-based conductive layer has, in an X-ray photoelectron spectroscopy (XPS) spectrum obtained from XPS, at least a first peak in the range from 70 eV to 73.5 eV and a second peak in the range from 73.5 eV to 78 eV, and the ratio x of the intensity of the second peak to the intensity of the first peak satisfies 0
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Inventors:
LIU XIN (CN)
HUANG QISEN (CN)
LI MINGLING (CN)
LIU XIANGHUI (CN)
LI CHENG (CN)
PENG JIA (CN)
LIANG CHENGDU (CN)
HUANG QISEN (CN)
LI MINGLING (CN)
LIU XIANGHUI (CN)
LI CHENG (CN)
PENG JIA (CN)
LIANG CHENGDU (CN)
Application Number:
PCT/CN2020/112691
Publication Date:
March 03, 2022
Filing Date:
August 31, 2020
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M4/13; H01M4/66; H01M10/05
Foreign References:
CN111180736A | 2020-05-19 | |||
CN105870457A | 2016-08-17 | |||
KR101988158B1 | 2019-06-11 | |||
CN110660957A | 2020-01-07 | |||
CN103633333A | 2014-03-12 | |||
CN109346724A | 2019-02-15 |
Other References:
See also references of EP 4109602A4
Attorney, Agent or Firm:
BEIJING EAST IP LTD. (CN)
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