Recent Developments and Future Challenges in Designing Rechargeable Potassium-Sulfur and Potassium-Selenium Batteries

Suyeong Lee, Jun Lee, Jaekook Kim, Marco Agostini, Shizhao Xiong, Aleksandar Matic and Jang-Yeon Hwang
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Suyeong Lee: Department of Materials Science and Engineering, Chonnam National University, Gwang-ju 61186, Korea
Jun Lee: Department of Materials Science and Engineering, Chonnam National University, Gwang-ju 61186, Korea
Jaekook Kim: Department of Materials Science and Engineering, Chonnam National University, Gwang-ju 61186, Korea
Marco Agostini: Department of Physics, Chalmers University of Technology, SE41296 Goteborg, Sweden
Shizhao Xiong: Department of Physics, Chalmers University of Technology, SE41296 Goteborg, Sweden
Aleksandar Matic: Department of Physics, Chalmers University of Technology, SE41296 Goteborg, Sweden
Jang-Yeon Hwang: Department of Materials Science and Engineering, Chonnam National University, Gwang-ju 61186, Korea

Energies, 2020, vol. 13, issue 11, 1-10

Abstract: The use of chalcogenide elements, such as sulfur (S) and selenium (Se), as cathode materials in rechargeable lithium (Li) and sodium (Na) batteries has been extensively investigated. Similar to Li and Na systems, rechargeable potassium–sulfur (K–S) and potassium–selenium (K–Se) batteries have recently attracted substantial interest because of the abundance of K and low associated costs. However, K–S and K–Se battery technologies are in their infancy because K possesses overactive chemical properties compared to Li and Na and the electrochemical mechanisms of such batteries are not fully understood. This paper summarizes current research trends and challenges with regard to K–S and K–Se batteries and reviews the associated fundamental science, key technological developments, and scientific challenges to evaluate the potential use of these batteries and finally determine effective pathways for their practical development.

Keywords: potassium; K–S battery; K–Se battery; cathode; anode; electrochemical reaction (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
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