Promises, Challenges, and Recent Progress of Inorganic Solid‐State Electrolytes for All‐Solid‐State Lithium Batteries

Inorganic solid‐state electrolytes (SSEs) offer numerous advantages for the development of next‐generation batteries. The most promising advantages are the safety that benefits from the nonflammable nature of SSEs and the possibility of using a Li‐metal anode, which has highest capacity, lowest anodic potential, and is indispensable to the future success of high‐energy‐density Li–S batteries and Li–O 2 battery systems.