Sodium-ion batteries (SIBs) is believed as an ideal alternative electrochemical device for lithium-ion battery due to abundant resource, low cost, high safety and long cycle life, which is used in large-scale energy storage. The mechanism, performance optimization and application for SIBs have been proposed. In recent years, various inorganic and organic Na compounds, mostly mimicked from their Li counterparts, have been reported for SIBs, and some of them demonstrate comparable specific capacity to the presently developed LIB electrodes. Here, we introduce low-cost, high-performance SIBs and their key electrode materials mainly including cathode materials such as transition-metal oxides, Prussian blue NaxFeFe(CN)6 and phosphate, and anode materials such as Sb/Sn-based alloy, hard carbon and TiO2/graphene. The SIB electrode materials with high specific capacity together with discussion of their Na-storage mechanisms are focused. In addition, some directions for future research, strategies for building advanced electrode materials and possible applications are also suggested.

Electrode materials for high-performance sodium-ion batteries

254th National Meeting (2017)

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