Peng Manqi, Shin Kyungsoo, Jiang Lixia, Jin Ye, Zeng Ke, Zhou Xiaolong, Tang Yongbing
Advanced Energy Storage Technology Research Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China.
School of Materials Science and Engineering, Chongqing University of Technology, Chongqing, 400054, China.
Angew Chem Int Ed Engl. 2022 Aug 15;61(33):e202206770. doi: 10.1002/anie.202206770. Epub 2022 Jul 13.
Alloy-type anodes are one of the most promising classes of next-generation anode materials due to their ultrahigh theoretical capacity (2-10 times that of graphite). However, current alloy-type anodes have several limitations: huge volume expansion, high tendency to fracture and disintegrate, an unstable solid-electrolyte interphase (SEI) layer, and low Coulombic efficiency. Efforts to overcome these challenges are ongoing. This Review details recent progress in the research of batteries based on alloy-type anodes and discusses the direction of their future development. We conclude that improvements in structural design, the introduction of a protective interface, and the selection of suitable electrolytes are the most effective ways to improve the performance of alloy-type anodes. Furthermore, future studies should direct more attention toward analyzing their synergistic promoting effect.
合金型阳极由于其超高的理论容量（是石墨的2至10倍），是最有前途的下一代阳极材料类别之一。然而，目前的合金型阳极存在几个局限性：巨大的体积膨胀、高断裂和崩解倾向、不稳定的固体电解质界面（SEI）层以及低库仑效率。克服这些挑战的努力正在进行中。本综述详细介绍了基于合金型阳极的电池研究的最新进展，并讨论了其未来的发展方向。我们得出结论，结构设计的改进、引入保护界面以及选择合适的电解质是提高合金型阳极性能的最有效方法。此外，未来的研究应更多地关注分析它们的协同促进作用。
