Top Down Proposal Technology Area

T1 Next Generation Batteries

Outline of the area

Consolidating the accumulated outcome of battery research and elemental technologies, and incorporating interdisciplinary knowledge, we promote a project research to accelerate the fundamental and basic research for practical use. Specifically, we do the R&D on leading candidates for the next-generation batteries such as an “all-solid state battery”, “Lithium-Sulfur battery with electrolyte cathode” and “advanced generation battery” including the multivalent ion battery.
In addition, we newly organize accelerating and promoting team for the practical use basically comprising a “special research unit for Li metal anode” and “analysis technology and base material technology”. Thus, we take up four team formation, and promote under this system.
The optimization group for the comprehensive battery system in each team has the responsibility and exercise leadership for the entire team working together, not only by materials research on such as the active material, the electrolyte and the separator, their mechanisms elucidation or the elemental technology, but also by making the maximum performance as a battery.



Improvement of capacity in the All-Solid-State battery

In the sulfide-based all-solid state battery, the target energy density has already been achieved ahead of the original R&D plan, and the research for practical use has been accelerated further upon cooperating with the Consortium for Lithium Ion Battery Technology and Evaluation Center (LIBTEC).

Cycle property of Lithium-Sulfur battery

 A better cycle property (500 mAh/g after 800 cycles) has been obtained at the longterm cycling test, using the world’s first solvated ion liquid.

Operation of Magnesium battery(advanced generation battery)

 A practically superior electrolytic liquid for Magnesium battery has been developed upon contriving the electrolytic solution.

※ All projects have been completed in 2022.