Influence of preparation method on the performance of ZnMn2O4 anode material for lithium-ion batteries

Abstract

ZnMn2O4 is considered as a potential anode material for lithium-ion batteries because of its high-capacity, low cost. However, its obvious volume expansion limited its wide application. In order to improve the electrochemical performance of ZnMn2O4, three different preparation methods were used to synthesize ZnMn2O4. The effects of different preparation methods on the phase, morphology and electrochemistry of the synthesized ZnMn2O4 were studied. The results show that ZnMn2O4 synthesized by low-temperature coprecipitation had the best electrochemical performance. Its initial capacity was 1060 mAh·g−1 at 100 mAh·g−1, and its capacity was 634 mAh·g−1 after 50 cycles. It exhibited good electrochemical performance.