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Hollow structured cathode materials for rechargeable batteries
Science Bulletin ( IF 18.9 ) Pub Date : 2019-12-10 , DOI: 10.1016/j.scib.2019.12.008
Xiaobo Zhu , Jiayong Tang , Hengming Huang , Tongen Lin , Bin Luo , Lianzhou Wang

Hollow structuring has been intensively studied as an effective strategy to improve the electrochemical performance of the electrode materials for rechargeable batteries in terms of specific capacity, rate capability, and cycling performance. To date, hollow structured anode materials have been extensively studied, while hollow structured cathode materials (HSCMs) are relatively less explored because of the difficulties in morphological control as well as the concern of reduced volumetric capacities. In this review, we provide an overview of the research advances in the synthesis and evolution of HSCMs for metal (Li, Na, etc.) ion batteries. Attributing to the advantages of hollow structures including high surface area, excellent accessibility to active sites, and enhanced mass transport and diffusion, hollow structuring can significantly improve the performance of high-capacity cathode materials with low kinetics, such as lithium rich layered oxides, silicates, and V2O5. It is anticipated that the precise and flexible control of the spatial configuration can balance the electrochemical performance of HSCMs and the volumetric capacities of HSCMs, leading to practical high-performance batteries.



中文翻译:

中空结构可充电电池正极材料

空心结构化已被作为一种有效的策略进行了深入研究,以提高可充电电池电极材料在比容量,倍率性能和循环性能方面的电化学性能。迄今为止,已经对中空结构化的阳极材料进行了广泛的研究,而中空结构化的阴极材料(HSCM)由于形态控制上的困难以及降低的容量而受到的关注相对较少。在这篇综述中,我们概述了金属(Li,Na等)离子电池HSCM的合成和发展方面的研究进展。归因于中空结构的优势,包括高表面积,对活性位点的出色可达性以及增强的质量传输和扩散,2 O 5。预期对空间配置的精确且灵活的控制可以平衡HSCM的电化学性能和HSCM的体积容量,从而产生实用的高性能电池。

更新日期:2019-12-11
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