公开(公告)号：EP0142045A1

公开(公告)日：1985-05-22

申请号：EP84112320.1

申请日：1984-10-12

申请人： SHOWA DENKO KABUSHIKI KAISHA ,  HITACHI, LTD.

发明人： Nishimura, Shigeoki ,  Fujita, Kazunori ,  Sugimoto, Hiroyuki ,  Tooyama, Atsuko ,  Ebato, Noboru ,  Matsuda, Shinpei

IPC分类号： H01M10/40 ,  H01M4/60

CPC分类号： H01M10/05 ,  H01M4/60

摘要： A secondary battery having at least one electrode made from a polymer having conjugated double bonds in a main chain such as polyacetylene can be improved remarkably in charge-discharge cycle life by making the electrode surface area of the negative electrode larger than that of the positive electrode.

公开(公告)号：EP0068508A3

公开(公告)日：1983-07-06

申请号：EP82105839

申请日：1982-06-30

申请人： Hitachi, Ltd.

发明人： Kawana, Hidejiro ,  Horiba, Tatsuo ,  Iwamoto, Kazuo ,  Fujita, Kazunori ,  Tamura, Kohki

IPC分类号： H01M08/08 ,  H01M02/16

CPC分类号： H01M8/1009 ,  H01M8/0289 ,  H01M8/08

摘要： A methanol fuel cell wherein a positive electrode (2) and a negative electrode (1) are disposed in contact with a solid film (3) which exhibits a hydrogen ion- and/ or hydronium ion-conductivity. The methanol permeability coefficient of the solid film (3) of the methanol fuel cell is at most 1 x 10- 6 mol/mol/ℓ).min.cm 2 .