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A Novel Fabrication Technique for Producing Dense Li [ Ni x Li ( 1 ∕ 3 – 2x ∕ 3 ) Mn ( 2 ∕ 3 − x ∕ 3 )  ] O2, 0 ⩽ x ⩽ 1∕2

A Novel Fabrication Technique for Producing Dense Li [ Ni x Li ( 1 ∕ 3 – 2x ∕ 3 ) Mn ( 2 ∕ 3 − x... Using a novel synthesis technique similar to the Columbite method, we have prepared materials from the series , , with high density and average particle size greatly in excess of , without the aid of a sintering agent. The structure of precursors, as a function of temperature and composition, was studied in detail. These materials phase-separate into mixed oxides at approximately for most compositions, but compositions with convert to single-phase spinel upon further heating. This allows for the production of a single-phase precursor with a homogeneous cation distribution and large particle size and density. By reacting these mixed-metal oxide spinel precursors with , we have prepared dense materials without heating over . These dense materials will allow production of electrodes for advanced -ion cells with greater volumetric energy density. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of the Electrochemical Society IOP Publishing

A Novel Fabrication Technique for Producing Dense Li [ Ni x Li ( 1 ∕ 3 – 2x ∕ 3 ) Mn ( 2 ∕ 3 − x ∕ 3 )  ] O2, 0 ⩽ x ⩽ 1∕2

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Copyright
Copyright © 2005 ECS - The Electrochemical Society
ISSN
0013-4651
eISSN
1945-7111
DOI
10.1149/1.1864372
Publisher site
See Article on Publisher Site

Abstract

Using a novel synthesis technique similar to the Columbite method, we have prepared materials from the series , , with high density and average particle size greatly in excess of , without the aid of a sintering agent. The structure of precursors, as a function of temperature and composition, was studied in detail. These materials phase-separate into mixed oxides at approximately for most compositions, but compositions with convert to single-phase spinel upon further heating. This allows for the production of a single-phase precursor with a homogeneous cation distribution and large particle size and density. By reacting these mixed-metal oxide spinel precursors with , we have prepared dense materials without heating over . These dense materials will allow production of electrodes for advanced -ion cells with greater volumetric energy density.

Journal

Journal of the Electrochemical Society – IOP Publishing

Published: Mar 7, 2005

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