Toyota to Launch World’s First Solid-State Battery EV by 2027
Toyota Motor Corporation has officially declared that it will launch the world’s first electric vehicle powered by solid-state batteries as early as 2027, signaling a major technological leap that could redefine the global EV industry.
Partnership With Sumitomo Metal Mining for Breakthrough Cathode Material
Toyota announced on October 10 that it has co-developed a durable cathode material for solid-state batteries with Sumitomo Metal Mining, aiming for commercial rollout between 2027 and 2028.
While companies such as Samsung SDI and QuantumScape are also racing toward commercialization—Samsung SDI operating the world’s largest solid-state pilot line (“S-Line”) since 2023 with a 2027 target, and QuantumScape developing ceramic-based solid electrolytes for a 2026 debut—Toyota is the first automaker to commit to launching a production EV equipped with solid-state batteries.
Overcoming Durability and Efficiency Challenges
Since 2021, Toyota and Sumitomo have been collaborating to resolve one of the key technical barriers in solid-state battery development — performance degradation of the anode over time.
The companies succeeded in developing a robust and stable cathode material using Sumitomo’s proprietary powder synthesis technology, which enables hundreds of charging cycles without loss of efficiency. Toyota said this innovation marks a critical step toward making solid-state batteries viable for mass-market EVs.
Preparing for Mass Production
Before scaling up production, Toyota plans to continue optimizing cost, quality, and performance of the technology. Once these refinements are complete, the automaker will begin mass production and commercialization of its next-generation EVs around 2027–2028.
Aiming to Leap Ahead of Tesla and BYD
Toyota believes that achieving its solid-state battery roadmap could catapult the company ahead of current EV leaders such as Tesla, Lucid, Hyundai Motor Group, and BYD, which still rely on lithium-ion (NCM) and LFP batteries.
If successful, Toyota’s solid-state EVs are expected to deliver significantly higher energy density, faster charging, and longer driving ranges than existing battery technologies — potentially reshaping the global EV hierarchy.
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