(19)

(11)

EP 4 352 800 A2

(12)

(88) Date of publication A3: 16.03.2023 (43) Date of publication: 17.04.2024 Bulletin 2024/16 (21) Application number: 22751502.0 (22) Date of filing: 01.07.2022

(51) International Patent Classification (IPC):  H01M 4/134(2010.01) H01M 10/052(2010.01) H01M 4/66(2006.01) H01M 10/058(2010.01) (52) Cooperative Patent Classification (CPC): Y02E 60/10; H01M 10/052; H01M 10/058; H01M 4/134; H01M 4/661; H01M 4/667; H01M 2004/027; H01M 4/663 (86) International application number: PCT/US2022/035944 (87) International publication number: WO 2023/278839 (05.01.2023 Gazette 2023/01)

(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: 02.07.2021 US 202117366410 (71) Applicant: Terawatt Technology Inc. Santa Clara, CA 95054 (US)	(72) Inventors: OGATA, Ken Santa Clara, California 95054 (US) YANG, Yang Santa Clara, California 95054 (US) HOSHI, Hajime Santa Clara, California 95054 (US) NAKANO, Masatsugu Santa Clara, California 95054 (US) IMOTO, Hiroshi Santa Clara, California 95054 (US) (74) Representative: Horler, Philip John  Withers & Rogers LLP 2 London Bridge London SE1 9RA London SE1 9RA (GB)