| 摘要 |
PURPOSE:To provide a battery with less self-discharge and excellent charging/ discharging cyclic lifetime even though it is stored in high temp. atmosphere for a long period of time by fixing a terminal of polyolefin resin to the surface of polyolefin type resin fibers, and affixing a hydrophile organic substance having anti-electrolyte property. CONSTITUTION:Particles 3 of polyolefin resin are fixed to the surface of polyolefin resin fibers 2, and a hydrophile organic substance having anti- electrolyte property is dispersed on or covers the surfaces of these fibers 2 or particles 3. Accordingly the separator material is not dissolved or does not produce impurity ions even in an alkaline electrolyte with high temp. and high concentration, which prevents promotion of the self-discharging caused by separator material. Because particles 3 of polyolefin resin are fixed to the surfaces of the fibers 2, the electrolyte is retained in voids between the particles 3 and fibers 2 to enhance the liquid retaining property of the separator, which should enhance the charging/discharging cyclic lifetime. |
