Controllable preparation of cation vacancy-modulated oxygen defect Mn2−xP2O7−y anodes to enhance lithium storage performance†

Abstract

Oxygen-deficient Mn_2−xP₂O_7−y with modulated cation vacancies was synthesized using a solvothermal method; through the synergistic influence of these vacancies, the optimized manganese pyrophosphate anode (Mn_1.93P₂O_7−y) exhibited enhanced electrochemical properties.