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(11)

EP 1 620 937 A1

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(43) Date of publication: 01.02.2006 Bulletin 2006/05 (21) Application number: 04729800.5 (22) Date of filing: 28.04.2004

(51) International Patent Classification (IPC):  H02M 3/28(1968.09) H01M 8/04(1974.07) H02J 7/34(1968.09) (86) International application number: PCT/CA2004/000628 (87) International publication number: WO 2004/098035 (11.11.2004 Gazette 2004/46)

(84) Designated Contracting States: DE FR GB IT (30) Priority: 29.04.2003 US 426942 04.09.2003 US 654872 (71) Applicant: NuCellSys GmbH 73230 Kirchheim/Teck-Nabern (DE)	(72) Inventors: ZHU, Lizhi Canton, MI 48188 (US) HAMPO, Richard, J. Plymouth, MI 48170 (US) WELLS, Brian, W. Vancouver, British Columbia V5Y 2A6 (CA) (74) Representative: Senft, Stefan Manfred et al c/o DaimlerChrysler AG Intellectual Property Management Wilhelm-Runge-Strasse 11 89077 Ulm 89077 Ulm (DE)