NEGATIVE ELECTRODE AND METHOD OF MANUFACTURING IT, AND BATTERY AND METHOD OF MANUFACTURING IT

摘要

PROBLEM TO BE SOLVED: To provide a battery capable of improving the cycle characteristics and the swollenness characteristics.

SOLUTION: The battery includes a positive electrode 21, a negative electrode 22, and an electrolytic solution which is impregnated in a separator 23 provided between the positive electrode 21 and the negative electrode 22. The negative electrode 22 includes a negative electrode collector 22A, and a negative-electrode active material layer 22B provided thereon. The negative-electrode active material layer 22B contains a plurality of negative-electrode active material particles having silicon, and a metal material having a metal element not being alloyed with an electrode reactant. The metal material is filled in a gap between the negative-electrode active material particles.

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