title: Pre-lithiation of onion-like carbon/MoS2 nano-urchin anodes for high-performance rechargeable lithium ion batteries.
abstract: Hybrid urchin-like nanostructures composed of a spherical onion-like carbon (OLC) core and MoS2 nanoleaves were synthesized by a simple solvothermal method followed by thermal annealing treatment. Compared to commercial MoS2 powder, MoS2/OLC nanocomposites exhibit enhanced electrochemical performance as anode materials of lithium-ion batteries (LIBs) with a specific capacity of 853 mA h g(-1) at a current density of 50 mA g(-1) after 60 cycles, and a moderate initial coulombic efficiency of 71.1%. Furthermore, a simple pre-lithiation method based on direct contact of lithium foil with MoS2/OLC nano-urchins was used to achieve a very high coulombic efficiency of 97.6% in the first discharge/charge cycle, which is at least 26% higher compared to that of pristine MoS2/OLC nano-urchins. This pre-lithiation method can be generalized to develop other carbon-metal sulfide nanohybrids for LIB anode materials. These results may open up a new avenue for the development of the next-generation high-performance LIBs.
authors: Pillar of Engineering Product Development, Singapore University of Technology and Design, 20 Dover Drive, 138682, Singapore. yanghuiying@sutd.edu.sg.
authors: Ye
authors: Y
authors: Wang
authors: Guozhong
authors: G
authors: Xing
authors: Zhao Jun
authors: ZJ
authors: Han
authors: Yumeng
authors: Y
authors: Shi
authors: Jen It
authors: JI
authors: Wong
authors: Zhi Xiang
authors: ZX
authors: Huang
authors: Kostya Ken
authors: KK
authors: Ostrikov
authors: Hui Ying
authors: HY
authors: Yang