follows referring to the accompanying drawing although the present invention will be described along preferable examples the present invention is not limited by these examples lithium cobalt oxide licoo 2 graphite powder as a conductive material and fluorine polymer powder as a binder were sufficiently mixed in a weight ration of 90 3 7 thereafter the mixture was pressurized and molded to thereby produce a positive electrode carbon powder and fluorine polymer powder as a binder were mixed in a weight ration of 91 9 thereafter the mixture was pressurized and molded to thereby produce a negative electrode the negative electrode was impregnated with 1 2 ethanediol solution of dilithium 1 2 ethanediol under reduced pressure thereafter it was dried to thereby form dilithium 1 2 ethanediol coat on the surface of the carbon material incidentally in the above processes the solvent was adjusted so that the weight ratio of lithium alkoxide became about 1 with respect to the carbon material figure is a sectional view of a cell in the drawing reference numeral 1 designates a case also used as a positive electrode terminal which is produced by stamping a stainless steel sus316 2 a sealing plate also used as a negative electrode terminal which is produced by stamping a stainless steel sus316 3 the negative electrode which is attached to the inner wall of the sealing plate 2 5 a separator comprising polypropylene to which organic electrolyte is impregnated and 6 the positive electrode an opening end portion of the case is inwardly crimped and the outer periphery.