Electrochemical Lithium Recovery with a LiMn2O4–Zinc Battery System using Zinc as a Negative Electrode

Seongsoo Kim, Jaehan Lee, Seoni Kim, Seonghwan Kim, Jeyong Yoon

Research output: Contribution to journalArticlepeer-review

86 Scopus citations

Abstract

Securing lithium resources is an emerging issue owing to the widespread use of lithium-ion batteries. Recently, an electrochemical lithium recovery method based on the principle of a lithium-ion battery using a lithium-capturing electrode and silver as a negative electrode was proposed to meet the increased demand for lithium. However, the high cost of silver is one hindrance to facilitating the practical use of this electrochemical lithium recovery. In this study, zinc, which has a low price, large capacity, and stable redox potential, was proposed as an alternative negative electrode material. Using a LiMn2O4–zinc (LMO-Zn) battery system, lithium was selectively recovered with an energy consumption of 6.3 Wh mol−1 of lithium recovered. Zinc was reversibly oxidized and reduced during the lithium-recovery process without side reactions and weight loss.

Original languageEnglish
Pages (from-to)340-344
Number of pages5
JournalEnergy Technology
Volume6
Issue number2
DOIs
StatePublished - Feb 2018

Bibliographical note

Funding Information:
This research was supported by a grant (code 17IFIP-B065893-05) from the Industrial Facilities & Infrastructure Research Program funded by Ministry of Land, Infrastructure and Transport of Korean government and Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2016R1D1A1A02937469), and by the “Foundation of IN-NOPOLIS Daegu Project” funded by Ministry of Science, ICT and Future Planning of the Korean government (2015DG0016).

Publisher Copyright:
© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords

  • batteries
  • lithium manganese oxide
  • lithium recovery
  • membranes
  • zinc

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