| 摘要 |
PURPOSE:To improve electrolyte absorbing ability of a separator and increase battery performance by using thermoplastic resin fiber to which a plasma irradiation treatment is applied in a separator. CONSTITUTION:Thermoplastic resin fibers to which a plasma irradiation treatment is applied is used in a part or whole of a separator in which electrolyte is held. Oxygen, nitrogen, argon, or air can be used as atmosphere gas for the plasma irradiation treatment. The plasma irradiation is performed by operating a microwave generator having an output of 0.1-5.0kW under a degree of vacuum of 0.01-10torr of one of these gasses for 10sec-10min. By this treatment, since affinity and absorbing ability of the fiber to dilute sulfuric acid electrolyte are increased, electrolyte absorbing ability of the separator is improved and battery performance is increased. |
