The research group of Professor Fumihiko Hasegawa of the New Industry Creation Hatchery Center, Tohoku University has succeeded in developing a small-lot, high-mix mass-production technology for lithium-ion secondary batteries, and has begun mounting tests on electric vehicles.As depopulation and aging progress in the disaster areas of Tohoku, the reconstruction of local public transportation has been delayed, and expectations for electric vehicles are rising.
According to Tohoku University, the production line for lithium-ion secondary batteries is large and not suitable for low-volume, high-mix mass production. Made possible.
Lithium-ion secondary battery production lines are installed in dry rooms because they dislike water contamination, and initial investment and running costs have become high. However, Professor Hasegawa and his colleagues are low-cost production lines that do not use dry rooms. Was realized.
Furthermore, we have developed a large-capacity battery with excellent safety by adopting a manganese-based positive electrode with excellent thermal stability for the lithium-ion secondary battery.
The research group received a donation of the latest sports car "Copen" from Miyagi Daihatsu Sales and remodeled it into an electric car equipped with a lithium-ion secondary battery.In the future, we will continue to improve the lithium-ion secondary battery and start running experiments on vehicles.
By building a regional platform for lithium-ion secondary battery manufacturing, it will be possible to supply large-capacity lithium-ion secondary batteries.The research group is working on the creation of a new transportation system for autonomous driving centered on electric vehicles, and this research is expected to be a major force in the construction of a new transportation system in the aging era.
