Academician Ouyang Minggao of the Chinese Academy of Sciences (KAN) stated that cars with solid-state batteries should not be expected in the next two years. According to him, the technology requires additional testing and refinement before mass launch.
The statement was made on March 11 at the "2026 Annual EV100 Research Institute Expert Media Exchange and Intelligent Electric Vehicle Development Forum." The scientist noted that individual cars began testing solid-state batteries as early as the end of 2025 and will continue to do so throughout 2026, but such systems are not yet ready for mass production.
Ouyang emphasized that modern electric vehicles already possess a high level of technology, so consumers do not need to postpone purchasing in anticipation of a new battery.
According to his assessment, the industrial development of solid-state batteries will proceed in several stages. In the period from 2025 to 2027, the plan is to develop batteries with an energy density of 200–300 Wh/kg. In the second stage, from 2027 to 2030, an increase to 400 Wh/kg is expected. By 2030–2035, a transition to lithium anodes and a density of about 500 Wh/kg is possible.
The expert also noted the rapid growth of research in China. In 2025, Chinese companies filed about 44% of the world's patents for solid-state batteries. At the same time, the cost of sulfide electrolytes has decreased in recent years from 20 million to less than 1 million yuan per ton.
According to Ouyang, the commercial distribution of such batteries may begin in three to five years, when the technologies reach an energy density of about 300–350 Wh/kg.