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Title: Imaging the surface morphology, chemistry and conductivity of LiNi 1/3 Fe 1/3 Mn 4/3 O 4 crystalline facets using scanning transmission X-ray microscopy

Journal Article · · Physical Chemistry Chemical Physics. PCCP
DOI:https://doi.org/10.1039/C6CP03511F· OSTI ID:1303150
 [1];  [1];  [1];  [2];  [2]
  1. Canadian Light Sources, Inc., Saskatoon, SK (Canada)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)

We have employed scanning transmission X-ray microscopy (STXM) using the X-ray fluorescence mode in order to elucidate the chemical structures at Ni, Fe, Mn and O sites from the (111) and (100) facets of micron-sized LiNi1/3Fe1/3Mn4/3O4 energy material particles. Furthermore, STXM imaging using electron yield mode has mapped out the surface conductivity of the crystalline particles. Our study presents a novel approach that visualizes local element segregation, chemistry and conductivity variation among different crystal facets, which will assist further tailoring of the morphology and surface structure of this high voltage spinel lithium ion battery cathode material.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
Grant/Contract Number:
SC00112704
OSTI ID:
1303150
Report Number(s):
BNL-112542-2016-JA; PPCPFQ; R&D Project: MA453MAEA; VT1201000
Journal Information:
Physical Chemistry Chemical Physics. PCCP, Vol. 18, Issue 33; ISSN 1463-9076
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 11 works
Citation information provided by
Web of Science

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Cited By (1)

Unexpected phase separation in Li 1−x Ni 0.5 Mn 1.5 O 4 within a porous composite electrode journal January 2018