| 摘要 |
PURPOSE:To reduce the inner resistance of cell by employing a polypropylene unwoven cloth applied with ethylene-acryl acid salt copolymer resin layer on the contacting side with anode layer as a separator for separating between anode agent layer and cathode layer. CONSTITUTION:Polypropylene unwoven cloth 1 is employed as separator layer 6, and ethylene-acryl acid salt copolymer resin film is integrally laminated with unwoven cloth 1 on at least contacting side with anode agent layer 4. Said resin permeat between single fiber of poltpropylene unwoven cloth 1 to improve the water repellent performance thus to provide hydrophilic performance to the separator layer thereby inner resistance of cell is reduced while the characteristic of cell particularly heavy load discharging characteristic or the fluctuation of electric amount can be improved. |
