Scientific challenges faced by Mn-based layered oxide cathodes with anionic redox for sodium-ion batteries

IF 19.5 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Carbon Energy Pub Date : 2024-09-27 DOI:10.1002/cey2.605

Chao Zheng, Shengnan He, Jiantuo Gan, Zhijun Wu, Liaona She, Yong Gao, YaXiong Yang, Jiatao Lou, Zhijin Ju, Hongge Pan

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Abstract

In the realm of sodium-ion batteries (SIBs), Mn-based layered oxide cathodes have garnered considerable attention owing to their anionic redox reactions (ARRs). Compared to other types of popular sodium-ion cathodes, Mn-based layered oxide cathodes with ARRs exhibit outstanding specific capacity and energy density, making them promising for SIB applications. However, these cathodes still face some scientific challenges that need to be addressed. This review systematically summarizes the composition, structure, oxygen-redox mechanism, and performance of various types of Mn-based cathodes with ARRs, as well as the main scientific challenges they face, including sluggish ion diffusion, cationic migration, O₂ release, and element dissolution. Currently, to resolve these challenges, efforts mainly focus on six aspects: synthesis methods, structural design, doped modification, electrolyte design, and surface engineering. Finally, this review provides new insights for future direction, encompassing both fundamental research, such as novel cathode types, interface optimization, and interdisciplinary research, and considerations from an industrialization perspective, including scalability, stability, and safety.

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钠离子电池用锰基阴离子氧化还原层状氧化物阴极面临的科学挑战

在钠离子电池（sib）领域，锰基层状氧化物阴极由于其阴离子氧化还原反应（ARRs）而引起了相当大的关注。与其他类型的流行钠离子阴极相比，具有arr的mn基层状氧化物阴极具有出色的比容量和能量密度，使其在SIB应用中具有前景。然而，这些阴极仍然面临一些需要解决的科学挑战。本文系统地综述了各类锰基arr阴极的组成、结构、氧氧化还原机理、性能及其面临的主要科学挑战，包括离子扩散缓慢、阳离子迁移、O2释放和元素溶解等。目前，解决这些挑战的工作主要集中在合成方法、结构设计、掺杂改性、电解质设计和表面工程六个方面。最后，本文对未来的发展方向提出了新的见解，包括基础研究，如新型阴极类型，界面优化和跨学科研究，以及从工业化角度考虑，包括可扩展性，稳定性和安全性。

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来源期刊

Carbon Energy Multiple-

CiteScore

25.70

自引率

10.70%

发文量

116

审稿时长

4 weeks

期刊介绍： Carbon Energy is an international journal that focuses on cutting-edge energy technology involving carbon utilization and carbon emission control. It provides a platform for researchers to communicate their findings and critical opinions and aims to bring together the communities of advanced material and energy. The journal covers a broad range of energy technologies, including energy storage, photocatalysis, electrocatalysis, photoelectrocatalysis, and thermocatalysis. It covers all forms of energy, from conventional electric and thermal energy to those that catalyze chemical and biological transformations. Additionally, Carbon Energy promotes new technologies for controlling carbon emissions and the green production of carbon materials. The journal welcomes innovative interdisciplinary research with wide impact. It is indexed in various databases, including Advanced Technologies & Aerospace Collection/Database, Biological Science Collection/Database, CAS, DOAJ, Environmental Science Collection/Database, Web of Science and Technology Collection.