阳极
材料科学
硫化物
硫化锌
氮气
金属有机骨架
无机化学
复合材料
化学工程
锂(药物)
兴奋剂
图层(电子)
锌
电导率
复合数
碳纤维
电池(电)
金属
电极
冶金
化学
吸附
有机化学
光电子学
医学
量子力学
物理
功率(物理)
物理化学
内分泌学
工程类
作者
Hui Ding,Hsin‐Chih Huang,Xin‐Ke Zhang,Lei Xie,Jiaqi Fan,Tao Jiang,Dean Shi,Ning Ma,Fang‐Chang Tsai
标识
DOI:10.1002/celc.201901568
摘要
Abstract On account of its low cost, non‐toxicity and high theoretical capacity, ZnS has been considered as one of the most potential anode materials for the following generation lithium‐ion batteries. However, the shortcomings that ZnS shows, such as low conductivity and large volume changes, make its wide application difficult. Herein, we combined ZnS with metal‐organic framework material (ZIF‐8) to form a carbon layer on the surface of nitrogen‐doped zinc sulfide, and obtained a new material ZnS@NC with a specific surface area of 191 m 2 g −1 . The results show that the reversible specific capacity of the composite is 853 mAh g −1 when the current is 500 mAg −1 , which is caused by the increase of specific capacity with nitrogen doping and the effective adjustment of the volume of the carbon layer coated on the periphery of the ZnS particles during charging and discharging process. Promisingly, the performance of ZnS@NC composite is far superior to that of the bare ZnS.
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