Nanoscale Research Letters | |
Three-dimensional MoS2/Graphene Aerogel as Binder-free Electrode for Li-ion Battery | |
Guanglan Liao1  Yan Zhong1  Siyi Cheng1  Yuanyuan Huang1  Tielin Shi1  Zirong Tang1  Chen Chen1  | |
[1] State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology; | |
关键词: MoS2; Graphene aerogel; Binder-free; Li-ion battery; | |
DOI : 10.1186/s11671-019-2916-z | |
来源: DOAJ |
【 摘 要 】
Abstract Hybrid MoS2/reduced graphene aerogels with rich micro-pore are fabricated through a hydrothermal method, followed by freeze-drying and annealing treatment. The porous structure could act as an electrode directly, free of binder and conductive agent, which promotes an improved electron transfer, and provides a 3D network for an enhanced ion transport, thus leading to an increased capacity and stable long cycle stability performance. Notably, the specific capacity of MoS2/reduced graphene aerogel is 1041 mA h g−1 at 100 mA g−1. Moreover, reversible capacities of 667 mA h g−1 with 58.6% capacity retention are kept after 100 cycles. The outstanding performance is beneficial from the synergistic effect of the MoS2 nanostructure and graphene conductive network, as well as the binder-free design. These results provide a route to integrate transition-metal-dichalcogenides with graphene to fabricate composites with rich micro-pores and a three-dimensional network for energy storage devices.
【 授权许可】
Unknown