MOFs and their derivatives as Sn-based anode materials for lithium/sodium ion batteries
MOFs and their derivatives as Sn-based anode materials for lithium/sodium ion batteries
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MOFs及其衍生物作为锂/钠离子电池锡基负极材料
DOI：
10.1039/d1ta06996a
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发表时间：
2021
影响因子：
11.9
通讯作者：
Ma Tingli
中科院分区：
文献类型：
--
作者：
Liu Kaiyuan;Li Chao;Yan Lijing;Fan Meiqiang;Wu Yechao;Meng Xianhe;Ma Tingli
电动汽车和消费电子的快速发展对二次电池的性能提出了更高的要求。锡基材料由于其高的重量/体积容量而有望成为下一代可充电电池的商业阳极材料候选者。然而，锡阳极在充放电循环期间体积变化很大，导致容量迅速衰减。新兴的锡基金属有机框架（Sn-MOFs）最近引起了研究人员的注意。它们的可调孔隙率，巨大的表面积和多个活性位点的特性为Li/Na离子的存储和传输提供了广泛的可能性，并且配位键将Sn原子稳定到有机基质缓冲粉碎和聚集。此外，MOF相关的Sn衍生物还可以具有新颖的多样功能结构，并实现高倍率容量和优异的循环稳定性。本文主要综述了Sn-MOFs及其衍生的Sn基复合材料的结构特点、储能机理、合理设计和制备等方面的最新研究进展，并讨论了目前面临的挑战和未来的发展方向。
The rapid development of electric vehicles and consumer electronics places higher demands on the performance of secondary batteries. Tin-based materials are expected to be a commercial anode material candidate of next-generation rechargeable batteries due to their high gravimetric/volumetric capacity. However, tin anodes have large volume changes during charge–discharge cycles which leads to a rapid capacity decay. Emerging tin-based metal–organic frameworks (Sn-MOFs) have recently attracted the attention of researchers. Their characteristics of tunable porosity, huge surface areas and multiple active sites offer a wide range of possibilities for Li/Na ion storage and transport, and the coordination bonds stabilize the Sn atoms to the organic matrix buffering pulverization and aggregation. Besides, MOF-related Sn derivatives could also have novel diverse functional structures and achieve high-rate capacity and excellent cycle stability. In this review, we mainly summarize the structural features, energy storage mechanism, and recent advances in the rational design and preparation of Sn-MOFs and MOF-derived Sn-based composites for LiB and SIB anodes, and current challenges and future directions for further development are discussed.