Recently, Huasheng Lithium Battery stated on the investor interaction platform that solid-state batteries, with their advantages of high energy density and high safety, have broad application prospects. In recent years, the company has been continuously focusing on the R&D of solid-state battery materials and has completed laboratory trials of various materials suitable for solid-state/semi-solid-state batteries, such as lithium bis(trifluoromethanesulfonyl)imide as an additive for semi-solid-state electrolytes, high-purity lithium sulphide, new-type silicon carbon anodes, and single-walled nanotube conductive agents. Regarding the preparation process of lithium sulphide, a key material for the popular sulphide solid-state electrolytes in the market, the company has mastered multiple preparation routes, including solid-phase and liquid-phase methods.