The influence of compositional change of 0.3Li<inf>2</inf>MnO <inf>3</inf>·0.7LiMn<inf>1-x</inf>Ni<inf>y</inf>Co<inf>0.1</inf>O <inf>2</inf> (0.2 ≤ x ≤ 0.5, y = x - 0.1) cathode materials prepared by co-precipitation

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Journal Article
Journal of Power Sources, 2011, 196 (7), pp. 3439 - 3442
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Cathode materials prepared by a co-precipitation are 0.3Li 2MnO3·0.7LiMn1-xNiyCo 0.1O2 (0.2 ≤ x ≤ 0.4) cathode materials with a layered-spinel structure. In the voltage range of 2.0-4.6 V, the cathodes show more than one redox reaction peak during its cyclic voltammogram. The Li/0.3Li2MnO3·0.7LiMn1-xNi yCo0.1O2 (x = 0.3, y = 0.2) cell shows the initial discharge capacity of about 200 mAh g-1. However, when x = 0.2 and y = 0.1, the cell exhibits a rapid decrease in discharge capacity and poor cycle life. © 2011 Elsevier B.V.
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