Title:
NEGATIVE ELECTRODE ACTIVE MATERIAL USED FOR BATTERY AND METHOD FOR FABRICATION THEREOF, AND BATTERY NEGATIVE ELECTRODE AND BATTERY
Document Type and Number:
WIPO Patent Application WO/2022/088543
Kind Code:
A1
Abstract:
Provided by the present application is a negative electrode active material used for a battery, containing negative electrode active substance particles, said negative electrode active substance particles comprising: silicon–oxygen compound particles, the silicon–oxygen compound particles containing elemental silicon nanoparticles and elemental lithium; a composite oxide cladding layer, partially or completely covered with silicon–oxygen compound particles, the composite oxide cladding layer containing a composite oxide of M metal and phosphorus, said M metal comprising elemental lithium and non-lithium metal elements. The negative electrode active material has good water resistance, and a battery made using said negative electrode active material has advantages such as good cycling performance, high energy density, high coulombic efficiency, and good rate performance.
Inventors:
LUO SHU (CN)
LI ZHE (CN)
ZHA DAOSONG (CN)
ZHANG HEBAO (CN)
WANG CEN (CN)
LI ZHE (CN)
ZHA DAOSONG (CN)
ZHANG HEBAO (CN)
WANG CEN (CN)
Application Number:
PCT/CN2021/074528
Publication Date:
May 05, 2022
Filing Date:
January 30, 2021
Export Citation:
Assignee:
AMPRIUS NANJING CO LTD (CN)
International Classes:
H01M4/36; H01M4/38
Foreign References:
| CN112018367A | 2020-12-01 | |||
| CN111326727A | 2020-06-23 | |||
| CN110121803A | 2019-08-13 | |||
| CN109075332A | 2018-12-21 | |||
| JP2003292309A | 2003-10-15 | |||
| CN111180692A | 2020-05-19 |
Attorney, Agent or Firm:
BEIJING LAWSING IP FIRM (CN)
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