(19)

(11)

EP 4 824 928 A1

(12)

(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 24820658.3 (22) Date of filing: 04.12.2024

(51) International Patent Classification (IPC):  H02M 3/00(2006.01) H02M 3/145(2006.01) H02M 1/15(2006.01) H02M 3/02(2006.01) H02M 1/00(2006.01) H02M 3/335(2006.01) (52) Cooperative Patent Classification (CPC): H02M 1/0058; H02M 3/33573; H02M 3/015; H02M 1/15; Y02B 70/10 (86) International application number: PCT/EP2024/084676 (87) International publication number: WO 2025/125035 (19.06.2025 Gazette 2025/25)

(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: GE KH MA MD TN (30) Priority: 13.12.2023 EP 23216140 (71) Applicant: Shell Internationale Research Maatschappij B.V. 2596 HR The Hague (NL)	(72) Inventors: SHU, Liangcai 5616 VD Eindhoven (NL) WANG, Songda 2596 HR The Hague (NL) BELOQUI LARUMBE, Lucia 2596 HR The Hague (NL) SUN, Yin 2596 HR The Hague (NL) (74) Representative: Shell Technology IP Department  PO Box 384 2501 CJ The Hague 2501 CJ The Hague (NL)