Insights into the Jahn‐Teller Effect in Layered Oxide Cathode Materials for Potassium‐Ion Batteries

Abstract Potassium‐ion batteries (PIBs) have attracted increasing interest as promising alternatives to lithium‐ion batteries (LIBs) in large‐scale electrical energy storage systems due to the potential price advantages, abundant availability of potassium resources, and low standard redox potential of potassium. However, the pursuit of suitable cathode materials that exhibit desirable characteristics such as voltage platforms, high capacity, and long cycling stability is of utmost importance. Recently, layered transition‐metal oxides for PIBs offer great potential due to their high theoretical capacity, suitable voltage range, and eco‐friendliness. Nevertheless, the progress of K x MO 2 cathodes in PIBs faces…

• UO
  University of East Anglia
• UD
  Universidade de Macau

  Awards: MYRG2022‐00223‐IAPME, MYRG2022-00223-IAPME, MYRG2020‐00187‐IAPME, MYRG2020-00187-IAPME, 006/2022/ALC