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Charge–discharge properties of a layered-type Li(Ni,Co,Ti)O2 powder library

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Author(s): Kenjiro Fujimoto, Keita Ikezawa and Shigeru Ito

Journal: Science and Technology of Advanced Materials
ISSN 1468-6996

Volume: 12;
Issue: 5;
Start page: 054203;
Date: 2011;
Original page

ABSTRACT
A powder library of layered Li(Ni,Co,Ti)O2 (Ni ≤ 0.8, Ti ≤ 0.2) compounds was prepared by electrostatic spray deposition. From powder x-ray diffraction patterns, most of the powder library sintered at 700 C was indexed as a single phase belonging to the space group R-3m. These results were almost identical to those obtained from a study by combinatorial exploration. We investigated the charge–discharge characteristics of the Li(Ni,Co,Ti)O2 powder library in a voltage range from 4.2 to 2.8 V at 1 C and found favorable cycling properties in the LiNixCo0.9-xTi0.1O2 (0 ≤x ≤ 0.6) compounds.
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