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Author Zheng, Hao ♦ Xu, Shan ♦ Li, Lin ♦ Feng, Chuanqi ♦ Wang, Shiquan
Source SpringerLink
Content type Text
Publisher Springer US
File Format PDF
Copyright Year ©2016
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations
Subject Keyword Inorganic synthesis ♦ electrochemical properties ♦ energy storage ♦ lithium-ion batteries ♦ Optical and Electronic Materials ♦ Characterization and Evaluation of Materials ♦ Electronics and Microelectronics, Instrumentation ♦ Solid State Physics
Abstract NiCo$_{2}$O$_{4}$ microellipsoids have been synthesized by a rheological-phase hydrothermal method to obtain the precursors followed by annealing at 450°C for 4 h. The effects of different hydrothermal temperatures (140°C to 180°C) on the morphologies and electrochemical properties of the final product were systematically investigated. NiCo$_{2}$O$_{4}$ microellipsoids synthesized at 180°C exhibited the best electrochemical properties, with high reversible capacity (921 mAh g$^{−1}$ at current density of 100 mA g$^{−1}$) and good cycling stability (820 mAh g$^{−1}$ even after 100 cycles), compared with other samples. They also delivered discharge capacity of 586 mAh g$^{−1}$ at relatively high current density of 800 mA g$^{−1}$. The remarkable electrochemical performance of the NiCo$_{2}$O$_{4}$ microellipsoids can be attributed to their high surface area. These results indicate that NiCo$_{2}$O$_{4}$ microellipsoids could be a promising electrode material for lithium-ion batteries.
ISSN 03615235
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2016-06-03
Publisher Place New York
e-ISSN 1543186X
Journal Journal of Electronic Materials
Volume Number 45
Issue Number 10
Page Count 7
Starting Page 4966
Ending Page 4972


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Source: SpringerLink