← EPO Patent Bulletin

SILICON-BASED NEGATIVE ELECTRODE ACTIVE MATERIAL AND PREPARATION METHOD THEREFOR, SECONDARY BATTERY, AND ELECTRICAL DEVICE

Publication EP4604202A1 Kind: A1 Mar 18, 2026

Applicants

Contemporary Amperex Technology (Hong Kong) Limited

Inventors

GUO, Xiaoxin, WANG, Jiazheng, LV, Zijian

IPC Classifications

H01M 4/36 20060101AFI20260210BHEP H01M 4/38 20060101ALI20260210BHEP H01M 4/485 20100101ALI20260210BHEP H01M 4/58 20100101ALI20260210BHEP C01B 33/24 20060101ALI20260210BHEP H01M 4/62 20060101ALI20260210BHEP H01M 10/0525 20100101ALI20260210BHEP

Designated States

AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, ME, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR