Toyota’s all-solid-state EV battery plans officially gained approval from Japan’s Ministry of Trade and Industry (METI). The certification gives Toyota the green light to develop and build next-gen EV batteries as part of Japan’s plans to boost domestic supply.
Toyota is among several companies in Japan investing a total of $7 billion (1 trillion yen) to boost domestic battery production. Japan aims to secure a stable supply of batteries as it shifts away from dependence on China or South Korea, which dominate the market.
When officials drafted Japan’s new national energy strategy last year, the development of storage batteries was seen as a longer-term process, more a 2050 than a 2030 issue. That view, however, was strongly upgraded this year, with more urgency and KPIs put on the sector. METI’s Battery Industry Strategy is nothing if not a grand vision.
The Japanese auto giant plans to work with its subsidiaries as they shift to mass produce “a wide range” of EV batteries. Toyota released its EV battery roadmap last year, which included several different types. The first “Performance” batteries are due out in 2026, while the “Popularization” will follow by the end of 2027.
In addition to featuring electrodes and electrolytes devoid of cobalt, the new battery design has also displayed a number of advantages over conventional lithium-ion batteries. It has an energy density about 60% higher, which could equate to longer life, and it can deliver 4.4 volts, as opposed to about 3.2-3.7 volts of conventional NMC batteries.
According to SNE Research, China still dominates the global EV battery market. CATL controlled a commanding 37.6% market share through July 2024, while BYD took second with a 16.1% share. After falling behind early, Japan looks to play catch up as industry leaders including Toyota, Nissan, and Panasonic, are helping drive the efforts.
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