In an era where electric is becoming the key word, Toyota has decided to make a bold move with a daring partnership. In collaboration with Idemitsu Kosan, the Japanese giant plans to produce solid-state batteries, promising 1,000 km of range and a lightning-fast recharge in just 10 minutes. Hold on, this new technology could change the game in two years!
A Well-Thought-Out Strategy
When Toyota is mentioned, it is wise not to rush. President Akio Toyoda, at the helm of the group from 2009 to 2023, has often been criticised for his comments on electric vehicles, maintaining that it was not the only short-term path. However, his multi-energy approach has paid off. The figures speak for themselves: in 2025, with 11.3 million cars sold, the Japanese manufacturer set an absolute record.
Aware of the importance of solid-state batteries for competitive electric cars, Toyota is ramping up its efforts in this field. With the discipline and rigor that characterise Japanese know-how, the group’s research centres are busy evaluating technologies, testing solutions, and experimenting with different chemistries. This serious approach has attracted numerous observers, including Idemitsu Kosan, a key player in the Japanese oil sector that has decided to increase its involvement in this innovative project.
1,000 km of Range and Recharge in 10 Minutes
In October 2023, Toyota and Idemitsu Kosan launched an ambitious partnership aimed at producing solid electrolytes on a large scale. Together, they will build a new factory dedicated to the manufacturing of these essential components for solid-state batteries.
Toyota, new patents for more spacious electric cars
The goal is clear: by 2027 or 2028, Toyota aims to market electric cars that offer 1,000 km of range and can recharge the battery from 10% to 80% in just 10 minutes. To achieve such performance, solid-state batteries will be essential. This initiative would allow Toyota to meet its timeline and be among the first manufacturers to offer models equipped with this revolutionary technology.
The Valuation of Sulphur
On the technical side, the focus will be on solid electrolytes based on sulphides, renowned for their potential in the mass production of solid-state batteries intended for electric vehicles. These materials are distinguished by their flexibility and excellent adhesion to other substances, qualities that make them particularly suitable for industrialisation.
The electric range presented by Toyota in 2023
In addition, Idemitsu Kosan, like other refining companies, manages significant flows of sulphur as part of its regular activities. This often underestimated material could become very valuable if reused to produce lithium sulphide.
Who knows? Toyota, often perceived (incorrectly) as an “anti-electric” brand, could be among the first to offer next-generation battery cars. At the same time, the group is also collaborating with the Japanese miner Sumitomo Metal Mining to secure high-performance cathode materials specifically for this new solid-state battery factory.
