| abstract |
Provided are a battery, a battery pack, an electronic device, an electric vehicle, a power storage device, and a power system that have a high capacity and can improve quick charge characteristics. A negative electrode-side depression-impregnated region including a depression between adjacent negative electrode active material particles located on the outermost surface of the negative electrode active material layer, in which an electrolyte and solid particles are disposed between the negative electrode active material layer and the separator Is formed. Between the positive electrode active material layer and the separator, a pit-impregnated region on the positive electrode side including a dent between adjacent positive electrode active material particles located on the outermost surface of the positive electrode active material layer, in which the electrolyte and solid particles are arranged, is formed. Yes. The concentration of the solid particles in at least one of the dip-impregnated regions on the positive electrode side and the negative electrode side is 30% by volume or more. The electrolyte includes a predetermined sulfinyl or sulfonyl compound. [Selection] Figure 3 |