(19)

(11)

EP 2 643 871 A1

(12)

(43) Date of publication: 02.10.2013 Bulletin 2013/40 (21) Application number: 11796837.0 (22) Date of filing: 21.11.2011

(51) International Patent Classification (IPC):  H01M 2/10(2006.01) H01M 10/50(2006.01) (86) International application number: PCT/JP2011/006468 (87) International publication number: WO 2012/070220 (31.05.2012 Gazette 2012/22)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 22.11.2010 JP 2010260203 (71) Applicant: Yamaha Hatsudoki Kabushiki Kaisha Iwata-shi, Shizuoka 438-8501 (JP)	(72) Inventors: TERADA, Junji Iwata-shi Shizuoka 438-8501 (JP) SHIMA, Yoshinori Iwata-shi Shizuoka 438-0026 (JP) IIDA, Hiroki Iwata-shi Shizuoka 438-0026 (JP) (74) Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser  Leopoldstrasse 4 80802 München 80802 München (DE)