Solid-State Batteries Face Long Road to Market, Changan Exec Says
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A sodium-ion battery and a mobile solid-state battery by CATL, shown in Shenzhen on Oct. 10, 2025. Photo: VCG
A senior executive at Chongqing Changan Automobile Co. Ltd. has urged caution over the development of all-solid-state batteries, warning that the technology is unlikely to be ready for commercial use before 2030.
“There are still many unresolved problems with all-solid-state batteries,” said Deng Chenghao, vice president of Changan Auto and chairman of its electric-vehicle brand Deepal Auto, during the World Power Battery Conference on Tuesday. Deng cautioned that the industry's impatience could backfire, ultimately undermining sustainable, long-term development.
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- Changan Auto executive Deng Chenghao warned that all-solid-state batteries likely won't reach commercial viability before 2030 due to unresolved technical and cost challenges.
- Solid-state batteries promise better safety and longer range, but fires in new-energy vehicles remain a concern, and mass production is still difficult.
- Alternatives like nonflammable liquid electrolytes are being considered; recent delays at Toyota and Tesla highlight continued technical hurdles in the industry.
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Who’s Who
- Chongqing Changan Automobile Co. Ltd.
- Chongqing Changan Automobile Co. Ltd. (Changan Auto) is involved in state-led demonstration projects for all-solid-state batteries. A senior executive from Changan Auto, Deng Chenghao, expressed caution about the technology, stating it's unlikely to be commercialized before 2030 due to unresolved problems and the need for realistic expectations. Changan Auto's electric-vehicle brand is Deepal Auto.
- Changan Auto
- Changan Auto, through its vice president Deng Chenghao, urges caution regarding the commercialization of all-solid-state batteries, not expecting them before 2030. Deng emphasized the numerous unresolved problems and warned against industry impatience, despite government support for R&D and pilot trials. The company is involved in state-led demonstration projects but believes significant advancements are needed for mass production. Changan Auto also acknowledges that solid-state batteries might not be the ultimate solution for the industry.
- Deepal Auto
- Deepal Auto, an electric-vehicle brand under Changan Auto, is chaired by Deng Chenghao, who also serves as vice president of Changan Auto. Deng Chenghao expressed caution regarding the commercialization of all-solid-state batteries, suggesting they won't be ready before 2030 due to unresolved issues in technology, manufacturing, and cost efficiency. He emphasized the need for realistic expectations in the industry.
- Toyota Motor Corp.
- Toyota Motor Corp. is mentioned in connection with a delayed solid-state battery factory. The governor of Japan's Fukuoka prefecture stated on November 7 that Toyota would postpone the factory's development due to a decrease in demand for electric vehicles.
- Tesla Inc.
- Elon Musk, CEO of Tesla Inc., indicated that developing a dry battery electrode process has been more challenging than anticipated. He even suggested that he might have preferred sticking with traditional wet processes instead.
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