| 摘要 |
PROBLEM TO BE SOLVED: To provide a thin separator for a battery and its manufacture, having high strength and a high liquid-holding performance. SOLUTION: This separator for a battery has fabric diameters of 0.5-20 μm, longitudinal tensile strength of 60-300 N/5 cm, and thickness less than 0.2 mm. After manufacturing a nonwoven fabric made from synthetic fiber, it is drawn at least in one axis direction, and web-like structures where the synthetic fiber is drawn in a thin film state are formed between component fibers of the synthetic fiber nonwoven fabric. This separator can be suitably used particularly for a nickel-hydrogen secondary battery. |
