Solid-solution reaction suppresses the Jahn–Teller effect of potassium manganese hexacyanoferrate in potassium-ion batteries
Bingqiu Liu, Qi Zhang, Usman Ali, Yiqian Li, Yuehan Hao, Lingyu Zhang, Zhong‐Min Su, Lu Li, Chungang Wang
Abstract
extraction during the solid-solution reaction. KMnHCF-S delivers high capacity, outstanding rate capability, and superior cycling performance. Impressively, the K-ion full cell composed of the KMnHCF-S cathode and graphite anode also displays excellent cycling stability. The solid-solution reaction not only suppresses the Jahn-Teller effect of KMnHCF-S but also provides a strategy to enhance the electrochemical performance of other electrodes which undergo phase transitions.
Topics & Concepts
ManganesePotassiumJahn–Teller effectInorganic chemistryChemistryIonOrganic chemistryAdvancements in Battery MaterialsAdvanced Battery Materials and TechnologiesAdvanced Battery Technologies Research