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(11)

EP 4 494 193 A2

(12)

(88) Date of publication A3: 26.10.2023 (43) Date of publication: 22.01.2025 Bulletin 2025/04 (21) Application number: 23771351.6 (22) Date of filing: 15.03.2023

(51) International Patent Classification (IPC):  H01M 4/04(2006.01) B82Y 30/00(2011.01) (52) Cooperative Patent Classification (CPC): H01M 4/139; B02C 17/16; B02C 17/187; H01M 4/13; H01M 4/36; Y02E 60/10 (86) International application number: PCT/US2023/015259 (87) International publication number: WO 2023/177713 (21.09.2023 Gazette 2023/38)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 15.03.2022 US 202217654915 (71) Applicant: U.S. Silica Company Katy TX 77494 (US)	(72) Inventors: PITCHUMANI, Ramanan Hagerstown, Maryland 21742 (US) WELLS, William, Richard Hancock, Maryland 21750 (US) WELLER, David, Earl, Jr. Greencastle, Pennsylvania 17225 (US) (74) Representative: Maikowski & Ninnemann Patentanwälte Partnerschaft mbB  Postfach 15 09 20 10671 Berlin 10671 Berlin (DE)