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(11)

EP 2 036 157 A1

(12)

(43) Date of publication: 18.03.2009 Bulletin 2009/12 (21) Application number: 07765377.2 (22) Date of filing: 12.06.2007

(51) International Patent Classification (IPC):  H01M 12/06(2006.01) H01M 8/08(2006.01) H01M 10/34(2006.01) H01M 4/86(2006.01) H01M 12/08(2006.01) H01M 10/28(2006.01) H01M 4/38(2006.01) (86) International application number: PCT/EP2007/055781 (87) International publication number: WO 2007/144357 (21.12.2007 Gazette 2007/51)

(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: 12.06.2006 EP 06253023 (71) Applicant: ReVolt Technology Ltd Dublin 2 (IE)	(72) Inventors: BURCHARDT, Trygve 8712 Staefa (CH) BECQUET, Anne-Laure 8708 Männedorf (CH) (74) Representative: Brearley, Helen Rebecca  Elkington and Fife LLP Prospect House 8 Pembroke Road Sevenoaks Kent TN13 1XR Sevenoaks Kent TN13 1XR (GB)