Toyota’s new solid-state EV batteries promise 40 years of power

Source: interestingengineering
Author: @IntEngineering
Published: 11/9/2025
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Read original articleToyota plans to introduce solid-state batteries (SSBs) in its vehicles by 2027-2028, with these batteries potentially lasting up to 40 years—four times longer than current lithium-ion EV batteries. The new SSB technology promises significant improvements, including a driving range exceeding 621 miles (1,000 kilometers) per charge, smaller and lighter battery packs, faster charging times, and enhanced safety due to the replacement of flammable liquid electrolytes with solid ones. Toyota’s recent breakthrough, in partnership with Sumitomo Metal Mining, focuses on mass-producing durable cathode materials to overcome challenges such as degradation during repeated charging cycles.
The extended lifespan of these batteries not only offers greater long-term value to owners but also reduces environmental impact by lowering the need for frequent battery replacements. Although initial costs are expected to be high, prices should decrease over time with increased production scale and demand. Toyota intends to debut SSBs in premium models like Lexus and Century before expanding to mainstream vehicles such as
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energysolid-state-batterieselectric-vehiclesbattery-technologyToyotacathode-materialsEV-innovation