Improvement of LiNi1/3Co1/3Mn1/3O2 by a Cationic Substitution and Effect of Over-lithiation

The transition metal layered oxides offer a good discharge capacity at high voltage a suitable cathode material for hybrid and/or full electric vehicles applications. The LiNi1/3Co1/3Mn1/3O2 provides discharge capacity in excess of 200mAh/g when charged to 4.5V. However, its capacity retention suffe...

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Veröffentlicht in:ECS transactions 2009-08, Vol.16 (50), p.21-29
Hauptverfasser: Ligneel, Eric, Nazri, Gholam-Abbas
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description The transition metal layered oxides offer a good discharge capacity at high voltage a suitable cathode material for hybrid and/or full electric vehicles applications. The LiNi1/3Co1/3Mn1/3O2 provides discharge capacity in excess of 200mAh/g when charged to 4.5V. However, its capacity retention suffers when charged to high voltages. In this work, we study the impact of cationic substitutions and excess lithium on electrochemical performance of the Li[Ni1/3Co1/3Mn1/3]O2. The XRD and electrochemical tests have shown has shown a strong structural stability and capacity modification of the new materials Li1+x(Ni1/3Co1/3Mn1/3)1-xO2 (0.04
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title Improvement of LiNi1/3Co1/3Mn1/3O2 by a Cationic Substitution and Effect of Over-lithiation
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