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(11)

EP 2 013 930 A2

(12)

(88) Date of publication A3: 10.04.2008 (43) Date of publication: 14.01.2009 Bulletin 2009/03 (21) Application number: 07755747.8 (22) Date of filing: 20.04.2007

(51) International Patent Classification (IPC):  H01M 4/86(2006.01) H01M 8/10(2006.01) H01M 4/88(2006.01) (86) International application number: PCT/US2007/009596 (87) International publication number: WO 2007/124011 (01.11.2007 Gazette 2007/44)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 21.04.2006 US 408787 (71) Applicant: BDF IP Holdings Ltd. Vancouver, BC V6C 2X8 (CA)

(72) Inventors: MAH, Ronald Burnaby, British Columbia V5C 2S4 (CA) BAI, Kyoung J. Cranbrook, British Columbia V1C 5Y4 (CA) YE, Siyu Burnaby, British Columbia V5H 1S2 (CA) DE HAAN, David S. Burnaby, British Columbia V5J 2Z8 (CA) VLAJNIC, Goran R. Burnaby, British Columbia V5H 2S7 (CA) LEOW, Andrew North Delta, British Columbia V4C 3V4 (CA) (74) Representative: Beyer, Andreas  Wuesthoff & Wuesthoff Patent- und Rechtsanwälte Schweigerstrasse 2 81541 München 81541 München (DE)