全固态锂电池电解质材料的发展现状

he energy density of traditional liquid electrolyte battery has reached the ceiling after more than ten years of development, and it is very difficult to further improve the energy density. Lithium ion solid state batteries with high specific energy and good safety become the development direction of lithium batteries in the future. As the core component of solid state battery, solid electrolyte has many kinds, such as inorganic oxide solid electrolyte, polymer solid electrolyte, inorganic polymer composite electrolyte, etc. In this paper, the properties of inorganic oxide solid electrolytes, the research progress and problems of garnet type solid electrolytes, which are the most promising, are reviewed, and the development direction of garnet type solid electrolytes is prospected.