Role of Cation Ordering and Surface Segregation in High-Voltage Spinel LiMn1.5Ni0.5–xMxO4 (M = Cr, Fe, and Ga) Cathodes for Lithium-Ion Batteries

Wook Shin, Dong; A. Bridges, Craig; Huq, Ashfia; Paranthaman, M.; Manthiram, Arumugam

doi:10.1021/cm301844w

Public

Role of Cation Ordering and Surface Segregation in High-Voltage Spinel LiMn1.5Ni0.5–xMxO4 (M = Cr, Fe, and Ga) Cathodes for Lithium-Ion Batteries

Shared by NobleBlocks on Sep 11, 2012 • 12:00 AM UTC

Authors:

Dong Wook Shin

Craig A. Bridges

Ashfia Huq

Abstract

The high-voltage doped spinel oxides LiMn1.5Ni0.5–xMxO4 (M = Cr, Fe, and Ga; 0 ≤ x ≤ 0.08) synthesized at 900 °C have been investigated systematically before and after postannealing at 700 °C. Neutron diffraction studies reveal that the cation-ordered domain size tends to increase upon annealing at ...

Subject

Spinel

Materials science

Annealing (glass)

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