Title:
POSITIVE ELECTRODE CURRENT COLLECTOR, POSITIVE ELECTRODE PLATE, ELECTROCHEMICAL APPARATUS AND DEVICE THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/000562
Kind Code:
A1
Abstract:
A positive electrode current collector (10), a positive electrode plate, an electrochemical apparatus and a device thereof. The positive electrode current collector (10) comprises a supporting layer (101) and a metal conducting layer (102) provided on the supporting layer (101), the ratio of the density of the metal conducting layer (102) to the intrinsic density of the material of the metal conducting layer (102) is greater than or equal to 0.89, and the material of the metal conducting layer (102) is one or more of aluminum, aluminum alloy, nickel, nickel alloy, titanium, titanium alloy, silver and silver alloy. The positive electrode current collector (10) can have both low weight and high electrical performance, thereby enabling the electrochemical device to have both high weight energy density and high electrochemical performance.
Inventors:
LIANG CHENGDU (CN)
HUANG QISEN (CN)
WANG SHIWEN (CN)
HUANG QISEN (CN)
WANG SHIWEN (CN)
Application Number:
PCT/CN2020/071176
Publication Date:
January 07, 2021
Filing Date:
January 09, 2020
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M4/66
Domestic Patent References:
| WO2019103465A1 | 2019-05-31 |
Foreign References:
| CN109830688A | 2019-05-31 | |||
| CN109873164A | 2019-06-11 | |||
| CN108832134A | 2018-11-16 | |||
| CN107123812A | 2017-09-01 |
Other References:
See also references of EP 3930057A4
Attorney, Agent or Firm:
BEIJING ZHICHEN INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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