Fang Yongjin, Chen Zhongxue, Xiao Lifen, Ai Xinping, Cao Yuliang, Yang Hanxi
College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, China.
School of Power and Mechanical Engineering, Wuhan University, Wuhan, 430072, China.
Small. 2018 Mar;14(9). doi: 10.1002/smll.201703116. Epub 2018 Jan 10.
Grid-scale energy storage batteries with electrode materials made from low-cost, earth-abundant elements are needed to meet the requirements of sustainable energy systems. Sodium-ion batteries (SIBs) with iron-based electrodes offer an attractive combination of low cost, plentiful structural diversity and high stability, making them ideal candidates for grid-scale energy storage systems. Although various iron-based cathode and anode materials have been synthesized and evaluated for sodium storage, further improvements are still required in terms of energy/power density and long cyclic stability for commercialization. In this Review, progress in iron-based electrode materials for SIBs, including oxides, polyanions, ferrocyanides, and sulfides, is briefly summarized. In addition, the reaction mechanisms, electrochemical performance enhancements, structure-composition-performance relationships, merits and drawbacks of iron-based electrode materials for SIBs are discussed. Such iron-based electrode materials will be competitive and attractive electrodes for next-generation energy storage devices.
为满足可持续能源系统的需求，需要具有由低成本、地球上储量丰富的元素制成的电极材料的电网规模储能电池。具有铁基电极的钠离子电池（SIB）具有低成本、丰富的结构多样性和高稳定性的诱人组合，使其成为电网规模储能系统的理想候选者。尽管已经合成并评估了各种铁基阴极和阳极材料用于储钠，但在能量/功率密度和长循环稳定性方面仍需要进一步改进以实现商业化。在本综述中，简要总结了用于SIB的铁基电极材料的进展，包括氧化物、聚阴离子、亚铁氰化物和硫化物。此外，还讨论了用于SIB的铁基电极材料的反应机理、电化学性能增强、结构-组成-性能关系、优点和缺点。这种铁基电极材料将成为下一代储能装置具有竞争力和吸引力的电极。
