Lithium isotope enrichment by electrochemical pumping using solid lithium electrolytes

• HONDA Shunsuke

  Graduate School of Science and Engineering, Hirosaki University

• SHIN-MURA Kiyoto

  Graduate School of Science and Engineering, Hirosaki University

• SASAKI Kazuya

  Graduate School of Science and Engineering, Hirosaki University

抄録

Concentrating ⁶Li isotopes, which exist only approximately 7.6% in nature, to 40 to 90%, is necessary for development of thermal fusion reactors, which are promising as next-generation base-load energy systems. We investigated the possibility of ⁶Li enrichment by electrochemical pumping using La_0.57Li_0.29TiO₃ solid lithium electrolytes. We also clarified the influence of potential application profiles on separation efficiency. Giving a potential difference to electrodes prepared on both sides of the electrolyte made the electrode on the lithium solution side positive and concentrated ⁶Li. The efficiency of lithium isotope enrichment was affected by the potential application profile. An intermittent potential application concentrates ⁶Li with high efficiency. In an intermittent potential application in which the electrode on the lithium solution side was positive, an ⁶Li concentration with higher efficiency was achieved when a small negative potential was applied to the lithium solution side electrode while suspending application of the positive potential.

収録刊行物

• Journal of the Ceramic Society of Japan

  Journal of the Ceramic Society of Japan 126 (5), 331-335, 2018-05-01

  公益社団法人 日本セラミックス協会

キーワード

• Isotope enrichment
• Lithium
• Electrochemical pumping
• Alternative potential application
• Intermittent potential application

詳細情報

• CRID: 1390282680264190720
• NII論文ID: 130006730923
• DOI: 10.2109/jcersj2.17229
• ISSN: 13486535
• ISSN: 18820743
• Web Site: https://www.jstage.jst.go.jp/article/jcersj2/126/5/126_17229/_pdf
• 本文言語コード: en
• データソース種別:
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  • Crossref
  • CiNii Articles
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