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引用次数: 0
摘要
层状过渡金属氧化物(LTMOs)因其高比容量和低成本而被认为是钠离子电池(SIBs)的理想阴极材料,因此很有希望实现商业化。本综述重点介绍 LTMOs 结构和性能的研究现状,首先解释 P 相和 O 相阴极材料的结构特征。接下来,针对 LTMOs 面临的问题,包括充放电过程中的不可逆相变、能量密度与循环稳定性之间的不平衡以及空气稳定性差等,总结了三种改性策略,如元素掺杂、表面涂层和结构设计。此外,还阐明了锰和氧氧化还原化学互补的研究。最后,对 LTMOs 的发展趋势和应用前景进行了展望,旨在进一步推动 SIB 的基础研究和实际应用。
Layered Oxide Cathode Materials for Sodium-Ion Batteries: A Mini-Review
Layered transition metal oxides (LTMOs) are considered promising cathode materials for sodium-ion batteries (SIBs) due to their high specific capacity and low cost, making them promising candidates for commercialization. This review focuses on the current state of research on the structure and performance of LTMOs beginning with an explanation of the structure characteristics of P-phase and O-phase cathode materials. Next, to address the issues faced by LTMOs, including irreversible phase transitions during charge–discharge processes, the imbalance between energy density and cycling stability, and poor air stability, three modification strategies, such as element doping, surface coating, and structure design are summarized. Additionally, research on the complementary manganese and oxygen redox chemistry was also elucidated. Finally, an outlook on the development trends and application prospects of LTMOs is proposed, aiming to promote further fundamental research and practical application of SIBs.
期刊介绍:
Energy & Fuels publishes reports of research in the technical area defined by the intersection of the disciplines of chemistry and chemical engineering and the application domain of non-nuclear energy and fuels. This includes research directed at the formation of, exploration for, and production of fossil fuels and biomass; the properties and structure or molecular composition of both raw fuels and refined products; the chemistry involved in the processing and utilization of fuels; fuel cells and their applications; and the analytical and instrumental techniques used in investigations of the foregoing areas.