← EPO Patent Bulletin

LITHIUM-ION BATTERY SEPARATOR COATED WITH SURFACE TREATED ALUMINA

Publication EP3966881A1 Kind: A1 Mar 18, 2026

Applicants

Evonik Operations GmbH

Inventors

HUANG, Yuan-Chang, HSIEH, Ping-Hsun, KIM, Dong-Won, AHN, Junhwan, LEE, Sangmin, YOU, Tae-Sun

IPC Classifications

H01M 10/052 20100101AFI20251023BHEP C09C 1/40 20060101ALI20251023BHEP H01M 50/446 20210101ALI20251023BHEP H01M 50/451 20210101ALI20251023BHEP H01M 50/489 20210101ALI20251023BHEP

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, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR