Zhang Ya-Di, Xu Hongkun, Ebaid Manal S, Zhang Xin-Jie, Jiang Kaixin, Zhang Xuehua, Guo Zhanhu, Xu Ben Bin
College of Petrochemical Engineering, Lanzhou Petrochemical University of Vocational Technology Lanzhou 730060 China
Department of Chemistry, College of Science, Northern Border University Arar Saudi Arabia.
Chem Sci. 2025 Apr 17;16(21):9092-9108. doi: 10.1039/d5sc00932d. eCollection 2025 May 28.
Layer manganese dioxide with its special structure, low price and large theoretical specific capacitance/capacity is considered a competitive candidate for various energy conversion and storage devices, such as supercapacitors and batteries (Li-ion, Na-ion, and Zn-ion) However, challenges such as low electronic/ionic conductivity, sluggish diffusion kinetics, and structural collapse during cycling are still the main factors limiting its practical application. A solid understanding of the correlation between structure and performance will greatly promote the performance and the further application of layer manganese dioxide. In this review, the energy storage mechanism of layer manganese dioxide in different energy storage devices is discussed in detail. Additionally, considering the current difficulties and challenges, recent advances in strategies for electrochemical performance improvement are systematically summarized, including synthetic methods, structure design, and interlayer engineering. Finally, suggestions for the future directions and developments in preparing layer manganese dioxide cathodes with high electrochemical performance are put forward.
具有特殊结构、价格低廉且理论比电容/容量大的层状二氧化锰被认为是超级电容器和电池（锂离子、钠离子和锌离子电池）等各种能量转换和存储设备的有力候选材料。然而，诸如电子/离子电导率低、扩散动力学缓慢以及循环过程中的结构坍塌等挑战仍然是限制其实际应用的主要因素。深入了解结构与性能之间的相关性将极大地提升层状二氧化锰的性能及其进一步应用。在本综述中，详细讨论了层状二氧化锰在不同能量存储设备中的储能机制。此外，考虑到当前的困难和挑战，系统地总结了电化学性能改善策略的最新进展，包括合成方法、结构设计和层间工程。最后，对制备具有高电化学性能的层状二氧化锰阴极的未来方向和发展提出了建议。
