Nitrogen-Doped Carbon Embedded MoS2 Microspheres as Advanced Anodes for Lithium- and Sodium-Ion Batteries

Dong Xie; Xinhui Xia; Yadong Wang; Donghuang Wang; Yu Zhong; Wangjia Tang; Xiuli Wang; Jiangping Tu

doi:10.1002/chem.201601478

Nitrogen-Doped Carbon Embedded MoS2 Microspheres as Advanced Anodes for Lithium- and Sodium-Ion Batteries

Chemistry. 2016 Aug 8;22(33):11617-23. doi: 10.1002/chem.201601478. Epub 2016 Jun 29.

Authors

Dong Xie¹, Xinhui Xia¹, Yadong Wang², Donghuang Wang¹, Yu Zhong¹, Wangjia Tang¹, Xiuli Wang¹, Jiangping Tu³

Affiliations

¹ State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China.
² School of Engineering, Nanyang Polytechnic, 569830, Singapore.
³ State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China. tujp@zju.edu.cn, tujplab@zju.edu.cn.

PMID: 27355199
DOI: 10.1002/chem.201601478

Abstract

Rational design and synthesis of advanced anode materials are extremely important for high-performance lithium-ion and sodium-ion batteries. Herein, a simple one-step hydrothermal method is developed for fabrication of N-C@MoS2 microspheres with the help of polyurethane as carbon and nitrogen sources. The MoS2 microspheres are composed of MoS2 nanoflakes, which are wrapped by an N-doped carbon layer. Owing to its unique structural features, the N-C@MoS2 microspheres exhibit greatly enhanced lithium- and sodium-storage performances including a high specific capacity, high rate capability, and excellent capacity retention. Additionally, the developed polyurethane-assisted hydrothermal method could be useful for the construction of many other high-capacity metal oxide/sulfide composite electrode materials for energy storage.

Keywords: N-doped carbon layer; lithium storage; microsphere structure; molybdenum disulfide; sodium storage.