Boosting the high-rate performance of lithium-ion battery anode using ternary metal oxide composite interface

Abstract

• Manganese-based ternary composite materials are proposed and synthesized by a facile method. • The obtained anode material exhibits an excellent rate capability of 533.2 mAh/g at 16 A/g and a good long-term cycling stability of 1700 mAh/g after 450 cycles under 1 A/g. • The enhanced electrochemical performance is attributed to the synergistic effect and abundant interfaces. The rate performance of anode materials is desirable for lithium-ion batteries (LIBs) in energy storage and electric vehicle applications. The composite of different transition metal oxides may improve the rate performance of anode materials for LIBs. Ternary metal oxide/acetylene black (Mn/Ni/Fe/AB) materials were prepared by co-precipitation with subsequent annealing treatment and mechanical ball milling. Compared with the binary metal oxides, the ternary metal oxide displays remarkably improved electrochemical performance with an excellent rate performance of 533.2 mAh/g at 16 A/g and a superior reversible capacity of 1700 mAh/g after 450 cycles under 1 A/g. The enhanced electrochemical performance is attributed to the multiphase interface and the synergistic effect in the ternary oxide materials. Considering the multi-component design, the manganese-based ternary oxides will be a promising anode material for superior performance in LIBs.