We will then lay the foundation for mass production. Specifically, our two companies will combine their separate efforts to mass-produce new materials and establish a supply chain for solid electrolytes, which hold the key to the commercialization of solid-state batteries.įirst, between 20, we will start to produce solid-state batteries for use in battery electric vehicles. Idemitsu Kosan and Toyota Motor Corporation have agreed to collaborate on the mass production of solid-state batteries. Thank you very much for coming today despite your busy schedules and the short notice. I am Koji Sato of Toyota Motor Corporation. Presentation Koji Sato, President and CEO, Toyota Motor Corporation Both companies, working together across industries, will contribute to global carbon neutrality, and will lead the future with technologies created in Japan. Through combination of both companies' material development technologies, Idemitsu's material manufacture technologies and Toyota's battery processing and assembly technologies which is obtained through BEV development, both companies will aim to realize mass production of both solid electrolytes and all-solid-state batteries suitable for global widespread use. Further, the company is steadily increasing the capacity of its small pilot facility― announced in June 2023―and is proceeding construction plan of a large pilot facility― announced in April 2022―, which will contribute to commercialization of all-solid-state batteries in 2027-28. And through such development, it has been working on development of mass production technology on sulfide solid electrolytes, aiming to establish a stable supply system. Idemitsu has also been developing production technologies of lithium sulfide which is an intermediate material for solid electrolytes, using by-products which are generated in the course of petroleum refining. Based on the results of Phase 2, both companies will study of future full-scale mass production and commercialization.Study of future full-scale mass production Toyota will promote development of both all-solid-state batteries which sulfide solid electrolytes are used and BEV development in which the batteries are incorporated, and then will ensure market launch of BEVs with all-solid-state batteries in 2027-28.Through construction and startup of a large pilot facility, Idemitsu will promote sulfide solid electrolyte manufacture, and then will obtain mass production technology.Mass production using a large pilot facility Through feedback and development support from each other on each company's technical area, both Idemitsu and Toyota will work together on creating better sulfide solid electrolytes with attention to quality, cost, and lead times, which both companies believe will realize mass-production demonstration of sulfide solid electrolytes using an Idemitsu pilot facility.

He has gotten very deep into this area,” Singh told Fortune recently.Development of sulfide solid electrolytes and preparation for a large pilot facility

But when he thinks something is important he can dive really deep and become an expert in that area. “I didn’t honestly think he knew anything about chemistry, and we are all about chemistry. The company said its prototype single-layer pouch cell has demonstrated the ability to recharge batteries up to 80 percent capacity in 15 minutes and enable a car to last hundreds of thousands of miles even in extreme temperatures (as low as -22 degrees Fahrenheit).ĭuring a video presentation earlier this month, QuantumScape scored a major endorsement from Nobel Prize-winning chemist Stanley Whittingham, who said the startup’s lithium-metal technology could increase battery energy density by 50 percent, if not 100 percent.Īnd Bill Gates, who’s not a chemist by any means but, according to QuantumScape CEO Jagdeep Singh, has apparently become an expert since investing in the company, is also fully behind the idea. QuantumScape touts a lithium-metal battery technology that could change all that.

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