A Highly Cross-Linked Polymeric Binder for High-Performance Silicon Negative Electrodes in Lithium Ion Batteries

Authors

  • Bonjae Koo,

    1. Interdisciplinary School of Green Energy, Ulsan National Institute of Science and Technology (UNIST), Ulsan 689-798 (Korea)
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  • Hyunjung Kim,

    1. Interdisciplinary School of Green Energy, Ulsan National Institute of Science and Technology (UNIST), Ulsan 689-798 (Korea)
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  • Younghyun Cho,

    1. Interdisciplinary School of Green Energy, Ulsan National Institute of Science and Technology (UNIST), Ulsan 689-798 (Korea)
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  • Prof. Kyu Tae Lee,

    1. Interdisciplinary School of Green Energy, Ulsan National Institute of Science and Technology (UNIST), Ulsan 689-798 (Korea)
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  • Prof. Nam-Soon Choi,

    Corresponding author
    1. Interdisciplinary School of Green Energy, Ulsan National Institute of Science and Technology (UNIST), Ulsan 689-798 (Korea)
    • Interdisciplinary School of Green Energy, Ulsan National Institute of Science and Technology (UNIST), Ulsan 689-798 (Korea)
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  • Prof. Jaephil Cho

    Corresponding author
    1. Interdisciplinary School of Green Energy, Ulsan National Institute of Science and Technology (UNIST), Ulsan 689-798 (Korea)
    • Interdisciplinary School of Green Energy, Ulsan National Institute of Science and Technology (UNIST), Ulsan 689-798 (Korea)
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  • This work was supported by the MKE (The Ministry of Knowledge Economy), Korea, under the ITRC (Information Technology Research Center) support program supervised by the NIPA (National IT Industry Promotion Agency) (NIPA-2012-C1090-1200-0002) and by the National Research Foundation of Korea (NRF) grant funded by the Korea Government (MEST) (No. 2011-0027950).

Abstract

original image

Ein vernetztes Polymer als Bindemittel (rot im Bild) verhindert mechanische Brüche in negativen Siliciumelektroden. Silicium-Nanopulver in einem 3D-Gerüst aus Polyacrylsäure und Natriumcarboxymethylcellulose zeigt eine hohe reversible Kapazität (>2000 mAh g−1) nach 100 Zyklen bei 30 °C und behält eine hohe Kapazität und Stromdichte bei.

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