(19)

(11)

EP 2 907 214 A2

(12)

(88) Date of publication A3: 09.04.2015 (43) Date of publication: 19.08.2015 Bulletin 2015/34 (21) Application number: 13780311.0 (22) Date of filing: 27.09.2013

(51) International Patent Classification (IPC):  H02J 3/46(2006.01) H02J 3/38(2006.01) (86) International application number: PCT/EP2013/002908 (87) International publication number: WO 2014/060065 (24.04.2014 Gazette 2014/17)

(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 (30) Priority: 15.10.2012 LU 92083 (71) Applicant: Université du Luxembourg 1511 Luxembourg (LU)	(72) Inventor: JOSTOCK, Markus 54340 Leiwen (DE) (74) Representative: Schiweck, Weinzierl & Koch  European Patent Attorneys Landsberger Straße 98 80339 München 80339 München (DE)