Abstract
Based on the “job-sharing” mechanism, we have designed novel anode materials for LIBs, consisting of nano-transition metal and lithium oxide particles. The composites exhibit excellent rate performance, maintaining a specific capacity of 29% of the stabilized capacity at 6 A g−1. Since neither metallic iron nor lithium oxide has lithium storage capacity, the lithium storage behavior of the composites is mainly related to the interface. Moreover, the interface facilitates the improvement of the ion diffusion ability and pseudocapacitance percentage of the composite material. This study provides new horizons for designing anode materials for high power density LIBs.
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