Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008, China.
Key Laboratory of Salt Lake Resources Chemistry of Qinghai Province, Xining 810008, China.
Molecules. 2023 Jun 27;28(13):5037. doi: 10.3390/molecules28135037.
Binary metal oxide stannate (MSnO; M = Zn, Mn, Co, etc.) structures, with their high theoretical capacity, superior lithium storage mechanism and suitable operating voltage, as well as their dual suitability for lithium-ion batteries (LIBs) and sodium-ion batteries (SIBs), are strong candidates for next-generation anode materials. However, the capacity deterioration caused by the severe volume expansion problem during the insertion/extraction of lithium or sodium ions during cycling of MSnO-based anode materials is difficult to avoid, which greatly affects their practical applications. Strategies often employed by researchers to address this problem include nanosizing the material size, designing suitable structures, doping with carbon materials and heteroatoms, metal-organic framework (MOF) derivation and constructing heterostructures. In this paper, the advantages and issues of MSnO-based materials are analyzed, and the strategies to solve the issues are discussed in order to promote the theoretical work and practical application of MSnO-based anode materials.
二元金属氧化物锡酸盐 (MSnO; M = Zn、Mn、Co 等) 结构具有高理论容量、优越的锂存储机制和合适的工作电压，以及对锂离子电池 (LIBs) 和钠离子电池 (SIBs) 的双重适用性，是下一代阳极材料的有力候选材料。然而，基于 MSnO 的阳极材料在循环过程中插入/提取锂离子或钠离子时，由于严重的体积膨胀问题而导致的容量衰减难以避免，这极大地影响了它们的实际应用。研究人员通常采用的策略包括纳米化材料尺寸、设计合适的结构、掺杂碳材料和杂原子、金属-有机骨架 (MOF) 衍生和构建异质结构。本文分析了基于 MSnO 的材料的优势和问题，并讨论了解决这些问题的策略，以促进基于 MSnO 的阳极材料的理论工作和实际应用。
