(19)

(11)

EP 0 857 225 A1

(12)

(43) Date of publication: 12.08.1998 Bulletin 1998/33 (21) Application number: 96934830.0 (22) Date of filing: 15.10.1996

(51) International Patent Classification (IPC):  C25B 1/ 00( . ) H01M 8/ 08( . ) (86) International application number: PCT/FI1996/000541 (87) International publication number: WO 1997/014824 (24.04.1997 Gazette 1997/18)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 16.10.1995 FI 19950004902 (71) Applicant: Partanen, Rainer SF-00750 Helsinki (FI)	(72) Inventor: Partanen, Rainer SF-00750 Helsinki (FI) (74) Representative: Järveläinen, Pertti Tauno Juhani, et al  Oy Heinänen Ab, Annankatu 31-33 C 00100 Helsinki 00100 Helsinki (FI)