NONAQUEOUS ELECTROLYTIC CELL AND ITS MANUFACTURING METHOD, AND POSITIVE ELECTRODE ACTIVE MATERIAL AND ITS MANUFACTURING METHOD

摘要

A nonaqueous electrolytic cell comprising a positive electrode with a positive electrode active material, a negative electrode with a negative electrode active material, and a nonaqueous electrolyte. When the initial charging capacity per gram of the positive electrode active material is Cc [mAh/g], the weight of the positive electrode active material is Cw [g], the initial charging capacity per gram of the negative electrode active material is Ac [mAh/g], the initial discharging capacity is Ad [mAh/g], and the weight of the negative electrode active material is Aw [g], the value of X [%] expressed by Formula 16 is in the range of 20< X <50, so that deterioration in capacity in accordance with a charging/discharging cycle is suppressed.