Title:
COMPOSITE CURRENT COLLECTOR, BATTERY USING SAME, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/155938
Kind Code:
A1
Abstract:
A composite current collector, comprising a polymer film layer and a metal layer provided on at least one surface of the polymer film layer. A first coating is provided between the polymer film layer and the metal layer, and a second coating is provided between the first coating and the metal layer. The bonding force between the first coating and the second coating is larger than that between the second coating and the metal layer and larger than that between the first coating and the polymer film layer, thereby effectively improving the bonding force between the metal layer and the polymer film layer. The present application further provides a battery using the composite current collector and an electronic device using the battery.
Inventors:
YANG XIAOBING (CN)
Application Number:
PCT/CN2021/073453
Publication Date:
July 28, 2022
Filing Date:
January 23, 2021
Export Citation:
Assignee:
NINGDE AMPEREX TECHNOLOGY LTD (CN)
International Classes:
H01M4/64; H01M4/66
Domestic Patent References:
| WO2020263014A1 | 2020-12-30 |
Foreign References:
| CN107369810A | 2017-11-21 | |||
| CN105703010A | 2016-06-22 | |||
| JP2018181796A | 2018-11-15 |
Attorney, Agent or Firm:
SHENZHEN SCIENBIZIP INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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