| 摘要 |
PURPOSE:To manufacture the titled cell having superior storage character through the formation of the cover layer of alcoholate on the negative electrode black mix composed of light metal mixing a little volume of alcohol into organic electrolyte. CONSTITUTION:Light metal, for example, Li sheet is pressedly stuck to a negative electrode can 6 in order to make a negative electrode black mix 1. Further, 0.1- 2wt% of alcohol of methanol, ethanol, etc. is mixed into the electrolyte comprising organic electrolyte, then the mixture is forced to impregnate a separator 3. Meanwhile, a positive electrode black mix 4 of MnO2, etc. is filled into a positive electrode can 7 and a cell is assembled. A cover layer 2 is formed on the surface of the black mix 1 with the alcohol impregnating the separator 3 by assembling the cell. It is possible to prevent the corrosion of black mix 1 caused from incorporated water by means of this layer 2 so the cell can maintain high electrochemical activity for a long period. |
