All-solid-state battery silicon negative electrode material Distribution of Li  BEI

Battery, Automobile

All-solid-state batteries are batteries in which the electrolyte is replaced by a solid, and are attracting attention as a next-generation battery because they are safer than liquid electrolytes and can have a larger capacity. When charging, the battery is charged by the Li contained in the solid electrolyte moving to the silicon anode material.

Contrast differences between particles suggest differences in composition, density, and crystal (orientation).

①Si anode (mixture of Si particles, conductive assistant, and solid electrolyte)
②Sulfide based solid electrolyte
③Si particle