Active material coated with solid electrolyte electrode and all-solid battery using the same

The present invention relates to an active material coated with a solid electrolyte, an electrode, and an all-solid-state battery using the same. The present invention is provided to improve the performance of the all-solid-state battery by expanding an ion contact area between the active material and the solid electrolyte. The active material for an all-solid-state battery according to the present invention includes: a raw active material; and a coating layer formed by coating the surface of the raw active material with a chloride-based solid electrolyte. 본 발명은 고체전해질이 코팅된 활물질, 전극 및 그를 이용한 전고체전지에 관한 것으로, 활물질과 고체전해질 간의 이온접촉면적을 확대하여 전고체전지의 성능을 향상시키기 위한 것이다. 본 발명에 따른 전고체전지용 활물질은 원료 활물질과, 원료 활물질의 표면에 염화물계 고체전해질로 코팅하여 형성되는 코팅층을 포함한다.