Title:
LITHIUM-ION BATTERY AND ELECTRIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/082291
Kind Code:
A1
Abstract:
A lithium-ion battery and an electric device comprising same. The lithium-ion battery comprises a positive electrode, a negative electrode and an electrolyte, wherein the negative electrode comprises a negative electrode current collector and a negative electrode active material layer, which is attached to at least one surface of the negative electrode current collector and comprises a negative electrode active material, wherein the average width-to-length ratio of particles of the negative electrode active material is 0.1-1; the ionic conductivity of the electrolyte is 7-15 mS/cm; and the ratio CB of the lithium intercalation capacity of the negative electrode to the lithium de-intercalation capacity of the positive electrode is 1.05-1.5. The lithium-ion battery has a large-rate fast charging capability and good cycling performance.
Inventors:
GUO JIE (CN)
HAN CHANGLONG (CN)
WU ZELI (CN)
JIANG BIN (CN)
ZHANG CUIPING (CN)
WANG GUAN (CN)
CAI LINHUA (CN)
HAN CHANGLONG (CN)
WU ZELI (CN)
JIANG BIN (CN)
ZHANG CUIPING (CN)
WANG GUAN (CN)
CAI LINHUA (CN)
Application Number:
PCT/CN2022/126797
Publication Date:
April 25, 2024
Filing Date:
October 21, 2022
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M10/0525
Foreign References:
| CN105580184A | 2016-05-11 | |||
| CN105514350A | 2016-04-20 | |||
| CN113036298A | 2021-06-25 | |||
| CN103441305A | 2013-12-11 | |||
| CN115101803A | 2022-09-23 | |||
| JP2013232326A | 2013-11-14 |
Attorney, Agent or Firm:
ACIP LAW OFFICES (CN)
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