The breakthrough EV batteries Toyota says will double driving range and cut charging times are facing another setback. The company is once again delaying plans for a new battery plant in Japan.
Why is Toyota delaying its EV battery plant this time?
Earlier this year, Toyota bought a 280,000-square-meter plot of land in Fukuoka, Japan, where it planned to build a plant to produce the more advanced EV batteries.
A location agreement was expected to be signed by April, but Toyota pushed back construction by several months, blaming slower-than-expected demand for electric vehicles.
The agreement was expected to be finalized this Fall, but that will no longer be the case. According to Nikkei, Toyota is delaying the EV battery plant for the second time. Toyota will review and adjust plans over the next year.
Fukuoka governor, Seitaro Hattori, confirmed the news with reporters on Friday following a meeting with Toyota’s president, Koji Sato. Hattori also shut down claims that Toyota was planning to scrap the battery plant altogether.
Toyota again blamed slowing EV demand for the delay. The decision comes despite Keiji Kaita, president of Toyota’s Carbon Neutral Advanced Engineering Development Center, confirming at the Japan Mobility Show just last week that it’s “sticking on the schedule” to introduce its first solid-state battery-powered EV by 2028.
Last month, Toyota said it aimed to “achieve the world’s first practical use of all-solid-state batteries in BEVs” after securing a partnership with Sumitomo Metal Mining Co. to mass-produce them. It’s also working with Japanese oil giant Idemitsu.
The company recently revealed a solid-state battery pack prototype that it claims can deliver 747 miles (1,200 km) range and 10-minute fast charging, but will we ever see it actually in production?
Electrek’s Take
Top comment by Dan B
"blaming slower-than-expected demand for electric vehicles"
Now lets step into the real world of Toyota.
Dealer: Customers just aren't buying EV and we don't know why. We have at least two of them in the back lot covered in dust if the customer wants to see one. But since the customers don't want them, we will show them one of the hundred Tacoma's or two hundred Rav4's sitting up front and center.
I wouldn't buy a stick of gum from Toyota.
Toyota has been making empty promises about EV batteries for almost a decade now. It initially planned to introduce solid-state EV batteries in 2020, then pushed it to 2023, then 2026, and now it’s saying it will be around 2028.
Mass production is likely closer to the end of the decade, if Toyota doesn’t delay it again. While it’s blaming the slowing demand, global EV sales are still on the rise. According to Rho Motion, global EV sales topped 2 million for the first time in a single month in September 2025. Through the first nine months of the year, EV sales are up 26% compared to the same period in 2024.
Even with the US ending the $7,500 federal tax credit and other policies designed to promote electric vehicles, global adoption will continue building momentum over the next few years.
Is it a demand issue, or is Toyota just looking for another excuse? With rivals like Volkswagen, Mercedes-Benz, Hyundai, BMW, and Honda advancing next-gen EV batteries, Toyota will only fall further behind if it continues delaying key projects.
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