(19)

(11)

EP 4 380 985 A1

(12)

(43) Date of publication: 12.06.2024 Bulletin 2024/24 (21) Application number: 22853659.5 (22) Date of filing: 05.05.2022

(51) International Patent Classification (IPC):  C08F 122/10(2006.01) H01M 10/056(2010.01) H01M 10/0525(2010.01) (52) Cooperative Patent Classification (CPC): Y02E 60/10; C08F 22/10; C08F 222/102; H01M 10/052; H01M 10/0565; H01M 2300/0082   C-Sets: C08F 222/102, C08F 222/104; (86) International application number: PCT/US2022/027849 (87) International publication number: WO 2023/014416 (09.02.2023 Gazette 2023/06)

(84) Designated Contracting 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 Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 06.08.2021 US 202117395477 31.01.2022 US 202263304932 P (71) Applicant: Factorial Inc. Woburn, MA 01801 (US)	(72) Inventors: DU, Jia Woburn, 01801 (US) REN, Dong Woburn, 01801 (US) HUANG, Yiqing Woburn, 01801 (US) (74) Representative: Elkington and Fife LLP  Prospect House 8 Pembroke Road Sevenoaks, Kent TN13 1XR Sevenoaks, Kent TN13 1XR (GB)