| 摘要 |
PURPOSE:To prolong lifetime in deep charging and discharging of an anode plate not including antimony by installing a separator having a rib on one side so that its side not having the rib is in close contact with the anode plate. CONSTITUTION:A separator 3 consisting of a fine porous film with plastics as main component forms a void between two electrodes by a rib 2 furnished on one side of the separator 3. That side out separator which is free from rib 2 is in close contact with the electrode plate surface of an anode plate 1 provided with a lattice not containing antimony as alloy component. This suppresses the amount of electrolyte supplied to the anode plate 1, and the concentration drops with operation of the battery. This improves charging/ discharging reactions only near lattice active substance interfaces, which is considered to be a defect of an anode not using antimony to lead to improvement of the lifetime when deep charging/discharging are repeated. |
