The object of the invention is to provide a battery which has a simple structure with good durability and can continue a cell reaction smoothly. Two vessels are connected with a hydrophobic ion-permeable separator 21 interposed therebetween. An electrolyti...

On the opposite end walls (8) of a flat, primatic battery case (2) of a battery module (1) where electrode terminals (12) are attached, protruding components (26) are formed such as to protrude further than the electrode terminals. Terminal holes (10) are ...

A prismatic sealed battery module includes a prismatic battery case (3), an electrode plate group (8) constituted by alternately layering positive and negative electrode plates with a separator arranged therebetween, and an electrolyte. The positive or neg...

Production of separator comprising polyolefin resin fibre nonwoven cloth including a sulphonation process giving an even and higher degree of sulphonation on the surface of the nonwoven cloth. The sulphonation process comprises passing the nonwoven cloth t...

A rectangular alkaline storage battery includes a plurality of rectangular positive electrode plates (1), negative electrode plates(2), and separators (3). The positive and negative electrode plates are layered alternately via the separators, resulting in ...