Title:
ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/206877
Kind Code:
A1
Abstract:
The present application discloses an electrochemical device and an electronic device. The electrochemical device comprises an electrode assembly; the electrode assembly comprises a first pole piece, a second pole piece, and a separator provided between the first pole piece and the second pole piece; the first pole piece comprises a first active material layer and a second active material layer which are arranged along the length direction of the pole piece; the lithium ion diffusion rate of the first active material layer is greater than that of the second active material layer, that is, the lithium-ion dynamic performance of the first active material layer is better than that of the second active material layer, such that the occurrence of lithium precipitation can be reduced.
Inventors:
FU AO (CN)
Application Number:
PCT/CN2022/084268
Publication Date:
October 06, 2022
Filing Date:
March 31, 2022
Export Citation:
Assignee:
NINGDE AMPEREX TECHNOLOGY LTD (CN)
International Classes:
H01M4/13; H01M10/0525; H01M10/0587
Foreign References:
| CN113097441A | 2021-07-09 | |||
| CN113097431A | 2021-07-09 | |||
| CN111916844A | 2020-11-10 | |||
| CN111029527A | 2020-04-17 | |||
| CN108352505A | 2018-07-31 | |||
| CN110190338A | 2019-08-30 | |||
| CN111725484A | 2020-09-29 | |||
| CN111952541A | 2020-11-17 | |||
| CN112186273A | 2021-01-05 |
Attorney, Agent or Firm:
SHENZHEN JIAQIN INTELLECTUAL PROPERTY AGENCY (CN)
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