| abstract |
The present disclosure aims to provide a battery having a good capacity. In the present disclosure, as a battery having a positive electrode layer, an electrolyte layer, and a negative electrode layer in this order, the negative electrode layer contains a silicon clathrate compound as a negative electrode active material, and the silicon clathrate compound is M x Si 46 (M is It is a metal element, x has a composition represented by 0<x<46), has a silicon clathrate I-type crystal phase, and the average primary particle diameter of the silicon clathrate compound is 50 nm or more and 3000 nm or less. This solves the above problem. |