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Title: In Situ Investigations of Li-MoS2 with Planar Batteries

Journal Article · · Advanced Energy Materials
 [1];  [2];  [3];  [1];  [1];  [1];  [4];  [1];  [1];  [3];  [5];  [1]
  1. Univ. of Maryland, College Park, MD (United States). Dept. of Materials Science and Engineering
  2. Univ. of Maryland, College Park, MD (United States). Dept. of Materials Science and Engineering and Dept. of Physics
  3. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). Center for Integrated Nanotechnologies (CINT)
  4. Univ. of Maryland, College Park, MD (United States). Dept. of Physics
  5. Univ. of Maryland, College Park, MD (United States). Dept. of Physics; Monash Univ., Melbourne, VIC (Australia). School of Physics

For this study, 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.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division; Univ. of Maryland, College Park, MD (United States); US Department of the Navy, Office of Naval Research (ONR); Australian Research Council
DOE Contract Number:
AC04-94AL85000
OSTI ID:
1426880
Report Number(s):
SAND-2014-17791J; 537578
Journal Information:
Advanced Energy Materials, Vol. 5, Issue 5; ISSN 1614-6832
Publisher:
Wiley
Country of Publication:
United States
Language:
English

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