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Title: Designing New Lithium-Excess Cathode Materials from Percolation Theory: Nanohighways in Li x Ni 2–4x/3 Sb x/3 O 2

Journal Article · · Nano Letters
DOI:https://doi.org/10.1021/nl5040754· OSTI ID:1395989
 [1];  [1];  [1];  [2];  [1];  [1];  [1]
  1. Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
  2. X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, United States

Increasing lithium content is shown to be a successful strategy for designing new cathode materials. In layered LixNi2-4x/3Sb(x/3)O(2) (x = 1.00-1.15), lithium excess improves both discharge capacity and capacity retention at 1C. Structural studies reveal a complex nanostructure pattern of Li-Sb and Ni-Sb ordering where the interface between these domains forms the correct local configuration for good lithium mobility. The <1 nm Li-Sb stripe domains and their interfaces thereby effectively act as nanohighways for lithium diffusion.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
DOE Contract Number:
AC02-06CH11357
OSTI ID:
1395989
Journal Information:
Nano Letters, Vol. 15, Issue 1; ISSN 1530-6984
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English

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Cited By (9)

Fluorination of Lithium-Excess Transition Metal Oxide Cathode Materials journal October 2017
Understanding Performance Degradation in Cation‐Disordered Rock‐Salt Oxide Cathodes journal July 2019
Review—Lithium-Excess Layered Cathodes for Lithium Rechargeable Batteries journal January 2015
Design principles for high transition metal capacity in disordered rocksalt Li-ion cathodes journal January 2018
Synthesis, structure and magnetic properties of honeycomb-layered Li3Co2SbO6 with new data on its sodium precursor, Na3Co2SbO6 text January 2020
Synthesis, structure and magnetic properties of honeycomb-layered Li 3 Co 2 SbO 6 with new data on its sodium precursor, Na 3 Co 2 SbO 6 journal January 2019
Sb-based electrode materials for rechargeable batteries journal January 2018
Diameter Dependence of Planar Defects in InP Nanowires journal September 2016
Enhanced Cycling Stability of Cation Disordered Rock-Salt Li1.2Ti0.4Mn0.4O2 Material by Surface Modification With Al2O3 journal March 2019

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