(19)

(11)

EP 3 991 261 A1

(12)

(43) Date of publication: 04.05.2022 Bulletin 2022/18 (21) Application number: 19742405.4 (22) Date of filing: 26.07.2019

(51) International Patent Classification (IPC):  H02J 3/32(2006.01) H02J 7/00(2006.01) (52) Cooperative Patent Classification (CPC): H02J 3/32; H02J 7/0013; H02J 7/0025; H02J 7/005; Y02B 70/3225; Y02T 10/70; Y04S 20/222; Y02E 40/10 (86) International application number: PCT/EP2019/070271 (87) International publication number: WO 2020/259860 (30.12.2020 Gazette 2020/53)

(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: 27.06.2019 EP 19183035 (71) Applicant: Smart Power GmbH 85622 Feldkirchen bei München (DE)	(72) Inventor: BÜRGER, Robert, Ulrich 85386 Eching (DE) (74) Representative: Stellbrink & Partner Patentanwälte mbB  Widenmayerstrasse 10 80538 München 80538 München (DE)