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(11)

EP 1 665 438 A1

(12)

(43) Date of publication: 07.06.2006 Bulletin 2006/23 (21) Application number: 04704918.4 (22) Date of filing: 23.01.2004

(51) International Patent Classification (IPC):  H01M 8/10(1974.07) H01M 2/02(1974.07) H01M 2/16(1974.07) H01M 6/18(1974.07) B05D 5/12(1974.07) C08F 116/36(1974.07) H01M 2/00(1974.07) H01M 2/14(1974.07) H01M 6/14(1974.07) C25B 13/00(1974.07) C08K 3/34(1990.01) C08F 283/00(1974.07) (86) International application number: PCT/US2004/001960 (87) International publication number: WO 2005/020362 (03.03.2005 Gazette 2005/09)

(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 PT RO SE SI SK TR (30) Priority: 19.08.2003 US 644227 (71) Applicant: Hoku Scientific, Inc. Honolulu, HI 96819 (US)	(72) Inventors: TAFT, Karl Honolulu, HI 96813 (US) KURANO, Matthew, Robert Honolulu, HI 96817 (US) MADA KANNAN, Arunachaka, Nadar Honolulu, HI 96819 (US) (74) Representative: Weller, Wolfgang et al Witte, Weller & Partner Patentanwälte Postfach 10 54 62 70047 Stuttgart 70047 Stuttgart (DE)