Revisiting potassium intercalation in graphite: an <i>operando</i> characterisation and computational approach.

ABSTRACT: Potassium-ion batteries (KIBs) with graphite anodes are emerging as a highly promising "beyond lithium" technology driven by battery demands, potassium's abundant reserves and the inherent similarities in intercalation chemistry to lithium-ion systems. Despite this potential, a understanding of potassium intercalation into graphite, particularly concerning early intercalation stages and the in-plane ordering of K⁺ within graphite intercalation compounds (GICs), lacks sufficient elucidation. Herein, we employed a multi-modal, operando characterisation approach to elucidate the correlation of electrochemical potassiation and structural evolution in graphite, hence unravelling the specific mechanisms of K-ion storage. Operando electrochemical dilatometry precisely qua

SUBMITTER: Guo Z 

PROVIDER: S-EPMC12670375 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature