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Open Access Publications from the University of California

Recent Progress and Perspective in Electrode Materials for K-Ion Batteries

  • Author(s): Kim, H
  • Kim, JC
  • Bianchini, M
  • Seo, DH
  • Rodriguez-Garcia, J
  • Ceder, G
  • et al.

© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim The development of rechargeable batteries using K ions as charge carriers has recently attracted considerable attention in the search for cost-effective and large-scale energy storage systems. In light of this trend, various materials for positive and negative electrodes are proposed and evaluated for application in K-ion batteries. Here, a comprehensive review of ongoing materials research on nonaqueous K-ion batteries is offered. Information on the status of new materials discovery and insights to help understand the K-storage mechanisms are provided. In addition, strategies to enhance the electrochemical properties of K-ion batteries and computational approaches to better understand their thermodynamic properties are included. Finally, K-ion batteries are compared to competing Li and Na systems and pragmatic opportunities and future research directions are discussed.

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