(19)

(11)

EP 1 742 867 A1

(12)

(43) Date of publication: 17.01.2007 Bulletin 2007/03 (21) Application number: 04768256.2 (22) Date of filing: 31.08.2004

(51) International Patent Classification (IPC):  C01B 3/36(2006.01) H01M 8/06(2006.01) (86) International application number: PCT/GB2004/003706 (87) International publication number: WO 2005/021423 (10.03.2005 Gazette 2005/10)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR (30) Priority: 01.09.2003 GB 0320446 08.09.2003 GB 0320966 (71) Applicant: Cambridge Enterprise Limited Trinity lane Cambridge Cambridgeshire CB2 1TN (GB)	(72) Inventors: MASTORAKOS, Epaminondas Cambridge CB3 0DG (GB) PEDERSEN-MJAANES, Haakon St. Stephen, NB E3L 1T8 (CA) (74) Representative: Hucker, Charlotte Jane  Gill Jennings & Every LLP Broadgate House 7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)