Introduction
Toyota has recently partnered with Japanese oil producer Idemitsu Kosan to develop and produce solid-state batteries for future electric vehicles. This collaboration is expected to revolutionize the EV industry. However, the adoption of solid-state batteries on a large scale may take some time.
Three Phases of Collaboration
The collaboration between Toyota and Idemitsu Kosan will be divided into three phases. The first phase focuses on improving the quality, cost, and lead times of sulfide solid electrolytes. In the second phase, a large pilot facility will be constructed to manufacture the new batteries. Toyota aims to achieve commercialization by 2027-2028 and commence mass production thereafter.
Limited Initial Production
Initially, the mass production of solid-state batteries will be limited. Toyota and Idemitsu Kosan plan to boost capacity to several thousand tonnes per year, which will be sufficient for producing “several tens of thousands of vehicles” by 2030 and beyond.
Potential High-End Models
Given the limited capacity, it is likely that Toyota’s first vehicles with solid-state batteries will be high-end, low-volume models. The specific models have not been announced yet.
Research and Development
Idemitsu Kosan has been conducting research and development on solid-state batteries since 2001, while Toyota started its own research in 2006. The two companies joined forces in 2013 and created their first prototype vehicle in 2020.
Future EVs with Prismatic Batteries
In the near future, Toyota’s electric vehicles will use innovative prismatic battery cells that enhance range and reduce weight. The company is also adopting gigacasting technology in EV production, as showcased by the Lexus LF-ZC concept at the Japan Mobility Show.
