|Title:||Electrochemical characteristics of LiNi1/3Co1/3Mn1/3O2 powders prepared from microwave-hydrothermally derived precursors||Authors:||Lu C.-H.
|Keywords:||Cathode materials;LiNi1/3Co1/3Mn1/3O2 oxide;Lithium-ion battery;Microwave hydrothermal||Issue Date:||2010||Journal Volume:||497||Journal Issue:||1¤ë2¤é||Start page/Pages:||159-165||Source:||Journal of Alloys and Compounds||Abstract:||
The influence of the preparation conditions in the microwave-hydrothermal process in the morphology and electrochemical properties of LiNi1/3Co1/3Mn1/3O2 powders was investigated in this study. When the microwave radiation temperature was raised from 100 ¢XC to 180 ¢XC, the particles exhibited a less-agglomerated morphology and reduced particle sizes. Increasing the microwave radiation temperatures for preparing the precursors increased the LiNi1/3Co1/3Mn1/3O2 powder surface area and also improved the electrochemical performance. When the microwave radiation temperature was increased to 180 ¢XC, the discharge capacity of the prepared powders was approximately 170 mAh/g and the retention was 98.5% after 10 cycles. The obtained powders exhibited a high lithium-ion diffusion coefficient and good rate capability. These results demonstrate that the microwave-hydrothermal method is a potential process for preparing LiNi1/3Co1/3Mn1/3O2 powders with large specific capacity, good cyclic stability and excellent rate capability. ? 2010 Elsevier B.V. All rights reserved.
Cathode materials; Cyclic stability; Discharge capacities; Electrochemical characteristics; Electrochemical performance; Hydrothermally; Lithium ions; Lithium-ion battery; Microwave hydrothermal; Microwave radiations; Microwave-hydrothermal process; Powder surface; Preparation conditions; Rate capabilities; Specific capacities; Cathodes; Electrochemical properties; Ions; Lithium; Lithium alloys; Lithium batteries; Manganese; Manganese compounds; Microwaves; Morphology; Electric discharges
|Appears in Collections:||化學工程學系|
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