[Zurück]

Y. Liu, L. Zhang, H. Wang, C. Yu, X. Yan, Q. Liu, B. Xu, Limin Wang:
"Synthesis of severe lattice distorted MoS2 coupled with hetero-bonds as anode for superior lithium-ion batteries";
Electrochimica Acta, 262 (2018), 1; S. 162 - 172.

Exploration of advanced anode materials is a highly relevant research topic for next generation lithium-ion batteries. Here, we report severe lattice distorted MoS2 nanosheets with a flower-like morphology prepared with PEG400 as additive, which acts not only as surfactant but importantly, also as reactant. Notably, in the absence of a carbon-related incorporation/decoration, it demonstrates superior electrochemical performance with a high reversible capacity, a good cycling stability, and an excellent rate capability, originated from the advantages of synthesized MoS2 including enlarged interlayer spacing, 1T-like metallic behavior, and coupling of MoOC (and MoO) hetero-bonds. PEG-assisted synthesis is believed applicable to other anode materials with a layered structure for lithium-ion batteries.

MoS2, Polyethylene glycol, Oxygen-containing groups, Lattice distortion, Lithium-ion batteries

http://dx.doi.org/10.1016/j.electacta.2018.01.023