公开(公告)号：US5525444A

公开(公告)日：1996-06-11

申请号：US490134

申请日：1995-06-14

申请人： Takeo Ito ,  Eiichi Wakai ,  Katsuya Kumagai ,  Kunihiko Miyamoto

发明人： Takeo Ito ,  Eiichi Wakai ,  Katsuya Kumagai ,  Kunihiko Miyamoto

IPC分类号： H01M4/62 ,  H01M10/24

CPC分类号： H01M4/621 ,  H01M10/24

摘要： An alkaline secondary battery is capable of inhibiting an increase of internal pressure in the charging/discharging cycles and extending life of charging/discharging cycles. This secondary battery comprises, a case, a paste-type positive electrode accommodated in the case and essentially consisting of a conductive substrate filled with a paste containing an active material and a binder, a negative electrode accommodated in the case, a separator interposed between the positive electrode and the negative electrode, and an alkaline electrolyte accommodated in the case, wherein the binder in the positive electrode contains a copolymer consisting of a vinyl alcohol unit and a unit having COOX group, wherein X is an element selected from the group consisting of hydrogen, alkaline metals and alkaline earth metals.

摘要翻译： 碱性二次电池能够抑制充电/放电循环中的内部压力的增加和充电/放电循环的延长寿命。 这种二次电池包括壳体，容纳在壳体中并且基本上由填充有包含活性材料和粘合剂的糊状物的导电基底，容纳在壳体中的负极，插入在壳体中的隔膜 正电极和负极，以及容纳在壳体中的碱性电解质，其中正极中的粘合剂包含由乙烯醇单元和具有COOX基团的单元组成的共聚物，其中X是选自以下的元素： 氢，碱金属和碱土金属。