Journal
NANOSCALE
Volume 7, Issue 6, Pages 2552-2560Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4nr05541a
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Funding
- National Research Foundation of Korea (NRF) - Ministry of Education, Korea [2012R1A2005977]
- Energy Efficiency & Resources Core Technology Program through the Korea Institute of Energy Technology Evaluation and Planning (KETEP) - Ministry of Trade, Industry Energy, Korea [20112020100110/KIER B4-2462]
- National Research Foundation of Korea [2012R1A1A2005977] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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In this study, a novel method has been proposed for synthesizing amorphous GeO2/C composites. The amorphous GeO2/C composite without carbon black as an electrode for Li-ion batteries exhibited a high specific capacity of 914 mA h g(-1) at the rate of C/2 and enhanced rate capability. The amorphous GeO2/C electrode exhibited excellent electrochemical stability with a 95.3% charge capacity retention after 400 charge-discharge cycles, even at a high current charge-discharge of C/2. Furthermore, a full cell employing the GeO2/C anode and the LiCoO2 cathode displayed outstanding cycling performance. The superior performance of the GeO2/C electrode enables the amorphous GeO2/C to be a potential anode material for secondary Li-ion batteries.
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