Guo Yan, Li Shuang, Fang Qiuyue, Zuo Jialu, Liu Ming, Zhang Jun
College of Chemistry and Chemical Engineering, Inner Mongolia University Hohhot 010021 P. R. China
RSC Adv. 2020 Mar 5;10(16):9335-9340. doi: 10.1039/c9ra10756h. eCollection 2020 Mar 2.
Due to its high specific capacity (in theory), molybdenum disulfide (MoS) has been recognized as a plausible substitute in lithium-ion batteries (LIBs). However, it suffers from an inferior electric conductivity and a substantial volume change during Li insertion/extraction. By using a facile hydrothermal method, a flexible free-standing MoS electrode has here been fabricated onto a carbon cloth substrate. The grafting of ultrathin MoS nanoflakes onto the carbon cloth framework (forming CC@MoS), was shown to facilitate an improved electron transport, as well as an enhanced Li transport. As expected, the as-obtained CC@MoS electrode was observed to exhibit an excellent lithium storage performance. It delivers a high discharge specific capacity of 2.42 mA h cm at 0.7 mA cm (even after 100 cycles), which is an impressive result.
由于其（理论上的）高比容量，二硫化钼（MoS）已被认为是锂离子电池（LIBs）中一种可行的替代材料。然而，它存在电导率较差以及在锂嵌入/脱出过程中体积大幅变化的问题。通过一种简便的水热法，在此将一种柔性自支撑的MoS电极制备在碳布基底上。超薄MoS纳米片嫁接到碳布框架上（形成CC@MoS），已表明这有助于改善电子传输以及增强锂传输。正如预期的那样，观察到所制备的CC@MoS电极表现出优异的锂存储性能。在0.7 mA cm下，它具有2.42 mA h cm的高放电比容量（即使在100次循环后），这是一个令人印象深刻的结果。
