Plasma and Fusion Research

Volume 18, 1205077 (2023)

Rapid Communications

Unlimited Fusion-Energy Station Based on Lithium Recovery from Seawater for a Net-Zero Carbon World
Ryoji HIWATARI, Youji SOMEYA, Hiroyasu UTOH and Yoshiteru SAKAMOTO
National Institutes for Quantum Science and Technology (QST), Rokkasho, Aomori 039-3212, Japan
(Received 16 May 2023 / Accepted 19 July 2023 / Published 28 August 2023)


This article presents the concept of unlimited fusion-energy station (U-FESTA), comprising a fusion power plant and a lithium (Li) recovery facility to recover Li from seawater, for example the Li-separation method by ionic conductor (LiSMIC). To realize the U-FESTA, we discuss the relationship among the seawater-based Li-recovery efficiency, blanket technology on 6Li enrichment, intake cooling seawater in a power plant, and the blanket-replacement period.


unlimited fusion energy, lithium recovery, LiSMIC, electricity, hydrogen, ancillary service

DOI: 10.1585/pfr.18.1205077


  • [1] Y. Shindo and T. Hakuta, Production of heavy water and concentration of heavy water in seawater distillation process, Bulletin of the society of sea water science 43, 192 (1989) (in Japanese).
  • [2] Y. Kanai, Chishitsu News 679, 47 (2011) (in Japanese).
  • [3] T. Hoshino, Desalination 359, 59 (2015).
  • [4] K. Morita et al., Desalination 543, 116117 (2022).
  • [5] D. Geilen and M. Lyons, “Critical material for the energy transition: LITHIUM”, International Renewable Energy Agency (IRENA), (2022).
  • [6] Y. Sakamoto et al., “Development of Physics and Engineering Designs for Japan’s DEMO Concept”, 27th IAEA Fusion Energy Conference India, FIP3-2 (2018).
  • [7] K. Morita et al., Fusion Eng. Des. 190, 113521 (2023).
  • [8] K. Tobita et al., Fusion Sci. Technol. 75, 372 (2019).
  • [9] P. Denholm, M. O’Connell, G. Brinkman and J. Jorgenson, “Overgeneration from solar energy in California: A field guide to the duck chart”, National Renewable Energy Laboratory, Technical Report NREL/TP-6A20-65023 November 2015.