Dr. Tsuyoshi Hoshino obtained his Ph.D. degree in engineering from the University of Tokyo in 2003. He joined the National Institutes for Quantum Science and Technology (QST) as a Senior Principal Researcher. He has also been involved in the R&D of lithium isotope separation and lithium recovery from seawater for Li-ion batteries as the project leader in Japan’s domestic program. He proposed his innovative lithium recovery technology for the funding program of the Next Generation World-Leading Researchers (NEXT Program) sponsored by the Cabinet Office of the Government of Japan, with an award of 1.6 billion Japanese yen (about 2M$) over 4 years. R&D efforts conducted under this program have been very successful, and this technology continues to attract major attention from electric vehicle developers and other industries using Li-ion batteries.