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Nanostructural Uniformity of Ordered Mesoporous Materials: Governing Lithium Storage Behaviors
Small ( IF 13.3 ) Pub Date : 2017-12-27 , DOI: 10.1002/smll.201702985
Gwi Ok Park 1 , Jeongbae Yoon 2 , Su Bin Park 1 , Zhenghua Li 1 , Yun Seok Choi 1 , Won-Sub Yoon 2 , Hansu Kim 3 , Ji Man Kim 1
Affiliation  

Nanostructured materials make a considerable impact on the performance of lithium‐storage characteristics in terms of the energy density, power density, and cycle life. Direct experimental observation, by a comparison of controlled nanostructural uniformity of electrode materials, reveals that the lithium‐storage behaviors of mesoporous MoO2 and CuO electrodes are linearly correlated with their nanostructural uniformity. Reversible capacities of mesoporous MoO2 and CuO electrodes with well‐developed nanostructures (1569 mA h g−1 for MoO2 and 1029 mA h g−1 for CuO) exceed their theoretical capacity based on the conversion reaction (838 mA h g−1 for MoO2 and 674 mA h g−1 for CuO). Given that exact understanding of the origin of the additional capacity is essential in maximizing the energy density of electrode material, this work may help to gain some insights into the development of high energy‐density lithium‐storage materials for next‐generation lithium rechargeable batteries.

中文翻译:

有序介孔材料的纳米结构均匀性:控制锂存储行为。

纳米结构材料在能量密度,功率密度和循环寿命方面对锂存储特性的性能产生了重大影响。通过比较电极材料的可控纳米结构均匀性,直接实验观察表明,介孔MoO 2和CuO电极的锂存储行为与其纳米结构均匀性线性相关。具有良好纳米结构的中孔MoO 2和CuO电极(MoO 2的1569 mA hg -1和CuO的1029 mA hg -1)的可逆容量超过了基于转化反应的理论容量(MoO 2的838 mA hg -1CuO为674 mA hg -1)。鉴于准确了解附加容量的来源对于最大程度地提高电极材料的能量密度至关重要,因此这项工作可能有助于获得对用于下一代锂可充电电池的高能量密度锂存储材料的开发的一些见识。
更新日期:2017-12-27
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