Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong Innovation Campus, Squires Way, North Wollongong, NSW, 2522, Australia.
Adv Mater. 2017 Dec;29(48). doi: 10.1002/adma.201700606. Epub 2017 Jun 23.
Rechargeable sodium-ion batteries (SIBs), as the most promising alternative to commercial lithium-ion batteries, have received tremendous attention during the last decade. Among all the anode materials for SIBs, metal sulfides/selenides (MXs) have shown inspiring results because of their versatile material species and high theoretical capacity. They suffer from large volume expansion, however, which leads to bad cycling performance. Thus, methods such as carbon modification, nanosize design, electrolyte optimization, and cut-off voltage control are used to obtain enhanced performance. Here, recent progress on MXs is summarized in terms of arranging the crystal structure, synthesis methods, electrochemical performance, mechanisms, and kinetics. Challenges are presented and effective ways to solve the problems are proposed, and a perspective for future material design is also given. It is hoped that light is shed on the development of MXs to help finally find applications for next-generation rechargeable batteries.
可充钠离子电池（SIBs）作为最有前途的商用锂离子电池替代品，在过去十年中受到了极大关注。在所有 SIBs 的阳极材料中，金属硫化物/硒化物（MXs）因其多样的材料种类和高理论容量而显示出令人鼓舞的结果。然而，它们存在体积膨胀大的问题，这导致了循环性能不佳。因此，采用了诸如碳改性、纳米尺寸设计、电解液优化和截止电压控制等方法来获得增强的性能。在这里，根据晶体结构排列、合成方法、电化学性能、机理和动力学总结了 MXs 的最新进展。提出了挑战，并提出了有效解决问题的方法，还对未来材料设计进行了展望。希望这能为 MXs 的发展提供一些启示，帮助最终找到下一代可充电电池的应用。
