Toyota Motor Corporation (Toyota) and Idemitsu Kosan Co., Ltd. (Idemitsu) have unveiled their collaborative agreement focused on advancing the mass production of all-solid-state batteries for battery electric vehicles (BEVs). This partnership aspires to kickstart the commercial launch of these batteries by 2027-28, as detailed in a Toyota Technical Workshop event in June 2023.
Why It Matters
The pursuit of carbon neutrality is prompting significant innovations in the BEV space. Central to this is the development of next-generation batteries. Solid-state batteries, championed in this partnership, are considered the frontrunners for the future of BEVs, promising higher capacities and outputs.
Key Points
- Historical Investment: Idemitsu has been immersed in R&D related to all-solid-state batteries since 2001, while Toyota initiated similar endeavors in 2006.
- Focus on Sulfide: The collaboration prioritizes sulfide solid electrolytes, recognized for their compatibility with mass production due to their softness and cohesive properties.
- Three-Phase Approach:
- Phase 1: Joint development of enhanced sulfide solid electrolytes and planning for a significant pilot facility.
- Phase 2: Mass production trials at the pilot facility. Idemitsu will refine electrolyte manufacturing, while Toyota advances the development of BEVs that use these batteries, eyeing a market introduction by 2027-28.
- Phase 3: Decisions on future full-scale mass production and market entry, based on Phase 2 outcomes.
- Harnessing By-Products: Idemitsu is innovating with production technologies for lithium sulfide, an essential component for solid electrolytes, using by-products from petroleum refining.
Bottom Line
This collaboration seeks to amalgamate Idemitsu’s proficiency in material manufacturing with Toyota’s battery processing and assembly expertise, aiming for a global roll-out of all-solid-state batteries. By pooling their strengths, the two industry giants are positioning themselves not only to be at the forefront of BEV technology advancements but also to play a pivotal role in driving global carbon neutrality. Their shared vision is underscored by a commitment to championing Japanese technological innovation on the world stage.
