2000 cycles in aqueous K-ion
Suppresses Jahn-Teller distortion via high-entropy charge compensation, enabling ultra-stable cycling of Mn-based cathodes in aqueous potassium-ion batteries.
Liu, Bingqiu · Zhang, Qi · Zhang, Lingyu · Xue, Yong · Li, Lu · Wang, Chungang
Energy Storage Materials 2024
Mn not oxidized to Mn3+ during charge, valence between +2 and +3
Robust and insoluble electrode structure with fast K-ion diffusion