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http://dx.doi.org/10.5229/JECST.2016.7.4.245

The Synthesis of Na0.6Li0.6[Mn0.72Ni0.18Co0.10]O2 and its Electrochemical Performance as Cathode Materials for Li ion Batteries  

Choi, Mansoo (Decontamination and Decommissioning Research Division, Korea Atomic Energy Research Institute)
Jo, In-Ho (Battery Research Center, Korea Electrotechnology Research Institute)
Lee, Sang-Hun (Battery Research Center, Korea Electrotechnology Research Institute)
Jung, Yang-Il (LWR Fuel Technology Division, Korea Atomic Energy Research Institute)
Moon, Jei-Kwon (Decontamination and Decommissioning Research Division, Korea Atomic Energy Research Institute)
Choi, Wang-Kyu (Decontamination and Decommissioning Research Division, Korea Atomic Energy Research Institute)
Publication Information
Journal of Electrochemical Science and Technology / v.7, no.4, 2016 , pp. 245-250 More about this Journal
Abstract
The layered $Na_{0.6}Li_{0.6}[Mn_{0.72}Ni_{0.18}Co_{0.10}]O_2$ composite with well crystalized and high specific capacity is prepared by molten-salt method and using the substitution of Na for Li-ion battery. The effects of annealing temperature, time, Na contents, and electrochemical performance are investigated. In XRD analysis, the substitution of Na-ion resulted in the P2-$Na_{2/3}MO_2$ structure ($Na_{0.70}MO_{2.05}$), which co-exists in the $Na_{0.6}Li_{0.6}[Mn_{0.72}Ni_{0.18}Co_{0.10}]O_2$ composites. The discharge capacities of cathode materials exhibited $284mAhg^{-1}$ with higher initial coulombic efficiency.
Keywords
$Na_{0.6}Li_{0.6}[Mn_{0.72}Ni_{0.18}Co_{0.10}]O_2$ composites; Sodium substitution; Cathode materials; Electrochemical performance; Li-ion battery;
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