Flexible MnS–Carbon Fiber Hybrids for Lithium‐Ion and Sodium‐Ion Energy Storage,Chemistry - A European Journal

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Flexible MnS–Carbon Fiber Hybrids for Lithium‐Ion and Sodium‐Ion Energy Storage
Chemistry - A European Journal ( IF 3.9 ) Pub Date : 2018-08-10 , DOI: 10.1002/chem.201801979
Shuang Gao ₁ , Gang Chen _{1,

2} , Yohan Dall'Agnese ₁ , Yingjin Wei ₁ , Zhongmin Gao ₃ , Yu Gao ₁

Affiliation

Nanostructures can improve battery capacity and cycle life, especially with sulfide electrodes. In this work, a freestanding flexible electrode, consisting of MnS nanoparticles embedded onto carbon nanofibers, was prepared by electrospinning. The produced hybrid was used as an electrode for lithium‐ion and sodium‐ion batteries. MnS nanoparticles have a size of about 5 nm and the particles are evenly distributed in the carbon nanofibers. Carbon nanofibers act as electronic conductors and buffer the volume change, while MnS nanoparticles react through rapid electrochemical reaction. As a Li‐ion battery anode, this hybrid electrode exhibits specific capacities from 240 mAh g⁻¹ at a high current density of 5 A g⁻¹, up to 600 mAh g⁻¹ at 200 mA g⁻¹.

中文翻译：

灵活的MnS-碳纤维混合动力电池，用于锂离子和钠离子储能

纳米结构可以提高电池容量和循环寿命，尤其是使用硫化物电极时。在这项工作中，通过静电纺丝制备了一个独立的柔性电极，该电极由嵌入碳纳米纤维中的MnS纳米颗粒组成。所生产的混合动力电池被用作锂离子和钠离子电池的电极。MnS纳米粒子的尺寸约为5 nm，并且这些粒子均匀分布在碳纳米纤维中。碳纳米纤维充当电子导体并缓冲体积变化，而MnS纳米颗粒则通过快速电化学反应进行反应。作为锂离子电池阳极，该混合电极在5 A g ^-1的高电流密度下显示出240 mAh g ^-1的比容量，在200 mA g ^-1时显示出600 mAh g ^-1的比容量。。

更新日期：2018-08-10

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