| 摘要 |
PURPOSE:To obtain a battery which is small-sized and lightweight and allows a fixed-current quick charge by overlapping a nonwoven fabric made of fine glass fibers and a nonwoven fabric made of water-repellent polymer fibers in layer as a separator. CONSTITUTION:A separator overlapped in layer with a nonwoven fabric made of extreme fine glass fibers and a nonwoven fabric made of water-repellent polymer fibers is inserted between positive and negative electrode plates formed by caustification respectively so that the nonwoven fabric of water-repellent polymer fibers in the separator is brought into contact with the surface of the negative electrode active material. As a result, the oxygen absorbing reaction on the negative electrode plate can be accelerated, and the hydrogen occurrence during a quick fixed-current charge can be suppressed. Accordingly, a quick charge is allowed, the negative electrode active material quantity is also decreased, and a battery is made small-sized and lightweight. |
