Title:
HIGH-NICKEL MULTI-ELEMENT POSITIVE ELECTRODE MATERIAL, AND PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/174028
Kind Code:
A1
Abstract:
The present invention provides a high-nickel multi-element positive electrode material, which is comprised of particles having a general formula of Li1+kMe1-kO2, and a high-valence lithium-metal oxide compound coating the surfaces of the particles, wherein high-valence metal ions in the high-valence lithium-metal oxide compound are cations which do not have electrons on the outermost orbit d and have a valence state of no less than +5. The present application further provides a high-nickel multi-element positive electrode material and the use thereof. The high-nickel multi-element positive electrode material provided in the present application has high paste stability, high cycling stability and a high thermal safety performance, thereby achieving a balance between various electrochemical performances of the high-nickel multi-element positive electrode material serving as a positive electrode material of a lithium-ion battery.
Inventors:
YE SHEWEN (CN)
WANG BIJUN (CN)
YU JIAN (CN)
SUN HUI (CN)
MA JIE (CN)
YANG PING (CN)
WANG BIJUN (CN)
YU JIAN (CN)
SUN HUI (CN)
MA JIE (CN)
YANG PING (CN)
Application Number:
PCT/CN2023/077830
Publication Date:
September 21, 2023
Filing Date:
February 23, 2023
Export Citation:
Assignee:
NINGBO RONBAY NEW ENERGY TECH CO LTD (CN)
International Classes:
H01M4/04; H01M4/36; H01M4/485; H01M4/505; H01M4/525; H01M4/62; H01M10/0525
Foreign References:
| CN114725338A | 2022-07-08 | |||
| JP2020070211A | 2020-05-07 | |||
| JP2020087823A | 2020-06-04 | |||
| JP2020087822A | 2020-06-04 | |||
| CN111952554A | 2020-11-17 | |||
| CN108172821A | 2018-06-15 | |||
| CN113839040A | 2021-12-24 |
Attorney, Agent or Firm:
SINOTALEN ATTORNEYS AT LAW (CN)
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