Recently, Guoxuan High-tech announced the completion of the first all-solid-state battery experimental line, achieving a qualitative leap in the industry. Enjie Co., Ltd., CATL, EVE Energy, Ganfeng Lithium and other companies have recently released progress in the development of solid-state batteries, marking a new stage in the field of all-solid-state batteries. An authoritative expert said in an interview with a reporter that sulfide solid-state batteries are expected to achieve small-scale mass production in 2027, but there is still a long way to go for large-scale application of all-solid-state batteries. Other experts also said that solid-state batteries are an important force in promoting the development of current popular smart cars, low-altitude aircraft, humanoid robots and other fields. Among them, the progress of research and development and production of solid-state batteries basically determines the outbreak time of low-altitude aircraft represented by eVTOL (electric vertical take-off and landing aircraft).