COATED ANODE ACTIVE MATERIAL AND ALL SOLID STATE BATTERY

A main object of the present disclosure is to provide a coated anode active material capable of preventing the reaction resistance from increasing during high cycles. The present disclosure achieves the object by providing a coated anode active material including: a Si-based active material; and a coating layer that coats at least a part of a surface of the Si-based active material and includes a lithium oxide; wherein a silicon oxide layer is formed between the Si-based active material and the coating layer.