Effect of Porosity on Cycle Performance in Three-Dimensional Disk Electrode for Li Ion Battery

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概要

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• A new three-dimensional disk electrode structure was designed without Cu foil for the anode of Li-ion battery. In this structure, the weight ratio of active material could be decided by controlling the particle size ratio between active material and current collector. 0.6Cu--0.4CoO composite (40% weight ratio of CoO) was prepared by conventional ceramic process. The excellent operation of three-dimensional disk electrode for Li-ion battery was clarified. Its porosity must be lower than 26%, in order to obtain the high adhesion between Cu and CoO particles.

• 2011-10-25

著者

• Ahn Cheol-Woo

  Functional Ceramics Group, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam 641-831, Korea

• Park Dong-Soo

  Functional Ceramic Group, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam 641-831, Korea

• Hahn Byung-Dong

  Functional Ceramics Group, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam 641-831, Korea

• Sung Yung-Eun

  School of Chemical and Biological Engineering and Research Center for Energy Conversion and Storage, Seoul National University, Seoul 151-744, Korea

• Park Dong-Soo

  Functional Ceramics Group, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam 641-831, Korea

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