All‐Solid‐State Battery Technology Using Solid Sulfide Electrolytes

In 1982, Ribes and others reported the development of an all-solid-state battery for the first time in collaboration with the company GIPELEC. The first “all-solid-state” battery was presented by Stadler in 2010, in collaboration with Deiseroth, and using Li6PS5Br as the solid electrolyte (SE). For the composite electrode, the compactness is dependent on its composition and will be one of the key parameters for the realization of compact “all-solid-state” batteries. All-solid-state batteries show how the phenomena at the interfaces are key to the performance of the devices using this technology. In 2013, various techniques were reviewed to improve the interfaces between the SE and the electrode materials. The first approach consists of preparing nanocomposites using mechanical grinding. The second approach consists of coating the active material with a thin layer of SE electrolyte. The third technique is the use of a vitreous electrolyte in a supercooled liquid state.