阳极
材料科学
电化学
复合数
电极
碳纤维
兴奋剂
化学工程
电导率
锂(药物)
离子
纳米技术
复合材料
光电子学
化学
内分泌学
工程类
物理化学
有机化学
医学
作者
Jin Bai,Bangchuan Zhao,Xin Wang,Hongyang Ma,Kunzhen Li,Zhitang Fang,Han Li,Jianming Dai,Xuebin Zhu,Yuping Sun
标识
DOI:10.1016/j.jpowsour.2020.228282
摘要
MoS2 has been regarded as one of the most promising anode materials for high-performance lithium-ion (LIBs) or sodium-ion batteries (SIBs) due to its unique two-dimensional (2D) layered structure. However, the unsatisfied structure stability and poor electrical conductivity limit the practical application of MoS2. Herein, a hierarchical yarn ball-like MoS2 nanosphere structure coated by N-doped carbon layer (MoS2[email protected]) is successfully developed to improve the structural stability and electrical conductivity of the MoS2 material. When evaluated as anode material for SIBs, the MoS2[email protected] electrode shows an excellent cycling performance of 410.2 mAh g−1 at 1 A g−1 after 200 cycles and an ultrahigh rate capability of 352.1 mAh g−1 at 10 A g−1. The composite electrode also presents a high cycling capacity of 607.1 mAh g−1 at 1 A g−1 after 300 cycles and high rate performance of 356.0 mAh g−1 at 10 A g−1 when used as anode for LIBs. The excellent electrochemical performance is attributed to the synergetic effect of the yarn ball-like nanosphere structure and the N-doped carbon layer. This work sheds light on the promising application of the hierarchical MoS2 composite in high-performance lithium-ion or sodium-ion storage system.
科研通智能强力驱动
Strongly Powered by AbleSci AI