| 摘要 |
PURPOSE: To stabilize discharging characteristics of a battery for a long period by forming a specific layer on the surface of a positive electrode constituent member in contact with electrolyte and thereby increasing corrosion resistance of the constituent member in a battery comprising a positive electrode, a negative electrode with Li, Na, etc., as the active material and nonaqueous electrolyte. CONSTITUTION: Polar organic compound corrosion solution having corrosion resistance to non-aqueous electrolyte 5 is applied to the surface of a positive electrode, 1, constituent member (e.g. stainless steel), at least, in contact with non-aqueous electrolyte 5 (e.g. lithium perchlorate dissolved in mixture solution of propylene carbonate and 1,2-dimethoxyethane), preferably heated at 50-100 deg.C, so that an adsorption layer 2 of polar organic compound is formed. As the polar organic compound, preferably, the following are selected; with group 5B, 6B or 7B of periodic table as the central atom, RCI, BBr, RI, R2 O, R2 S, R2 Se, R2 Te, R3 N, R3 P, R3 Sb (R is n-propyl). |
