In situ investigations of Li-MoS2 with planar batteries

Jiayu Wan, Wenzhong Bao, Yang Liu, Jiaqi Dai, Fei Shen, Lihui Zhou, Xinghan Cai, Daniel Urban, Yuanyuan Li, Katherine Jungjohann, Michael Fuhrer, Liangbing Hu

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Abstract

A planar microbattery that enables various in situ measurements of lithiation of 2D materials on the individual-flake scale is developed. A large conductivity increase of thick MoS2 crystallite lithiation due to the formation of a percolative Mo nanoparticle network embedded in a Li2S matrix is observed. The nanoscale study leads to the development of a novel charging strategy for batteries that largely improves the capacity and cycling performance confirmed in bulk MoS2/Li coin cells.
Original languageEnglish
Article number1401742
Pages (from-to)1-7
Number of pages7
JournalAdvanced Energy Materials
Volume5
Issue number5
DOIs
Publication statusPublished - 2015

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