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http://dx.doi.org/10.5229/JKES.2013.16.2.85

Zinc Based Anode Materials and Its Application to Lithium Ion Rechargeable Batteries  

Hwang, Min Ji (Battery Research Center, Korea Electrotechnology Research Institute)
Lee, Won Jae (Battery Research Center, Korea Electrotechnology Research Institute)
Doh, Chil Hoon (Battery Research Center, Korea Electrotechnology Research Institute)
Son, Yeong Guk (Department of Materials Science and Engineering)
Publication Information
Journal of the Korean Electrochemical Society / v.16, no.2, 2013 , pp. 85-90 More about this Journal
Abstract
Graphite is a commercial anode material to have the specific capacity of 372 mAh/g and the true density of 2.2 g/ml. Many effort had been pouring to find out the better material than graphite. Good candidates are silicon, tin, etc. Zinc is also a plausible candidate to have the specific capacity of 412 mAh/g and the true density of 7.14 g/ml. In this study, the Zn based anode material including indium and nickel as minor additives was synthesised. In order to get the homogeneouly mixed Zn-In-Ni composite material, the sol-gel method was used. The anode prepared by Zn-In-Ni composite material has the $1^{st}$ specific capacity of 910 mAh/g. Through prolonged charge-discharge cycling, the specific capacities were reduced to 365 (at $31^{st}$ cycle) and 378 mAh/g (at $62^{th}$ cycle). The $1^{st}$ Ah efficiency was 45% and Ah efficiencies were exhibited at the prolonged cycle.
Keywords
Zn-In-Ni alloy; Lithium secondary battery; Sol-Gel method;
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