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Advanced Materials

Nanoarchitectured 3D Cathodes for Li-Ion Microbatteries

Authors

  • Manikoth M. Shaijumon,

    1. CIRIMAT, UMR CNRS 5085, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex 9 (France)
    Current affiliation:
    1. Present address: School of Physics, Indian Institute of Science Education and Research Thiruvananthapuram,Kerala, (India) 695016
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  • Emilie Perre,

    1. CIRIMAT, UMR CNRS 5085, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex 9 (France)
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  • Barbara Daffos,

    1. CIRIMAT, UMR CNRS 5085, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex 9 (France)
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  • Pierre-Louis Taberna,

    1. CIRIMAT, UMR CNRS 5085, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex 9 (France)
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  • Jean-Marie Tarascon,

    1. LRCS UMR CNRS 6007, Université de Picardie Jules Verne, 33 rue Saint Leu, 80039 Amiens (France)
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  • Patrice Simon

    Corresponding author
    1. CIRIMAT, UMR CNRS 5085, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex 9 (France)
    • CIRIMAT, UMR CNRS 5085, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex 9 (France).
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Abstract

Microbatteries with large area capacity and no power limitation can be obtained by designing 3D structured batteries. 3D electrodes composed of 30 nm-thick films of LiCoO2 coating free-standing columns of Al current collector were achieved. By comparison with a planar electrode presenting an equivalent nominal capacity, a 3D electrode exhibits improved capacity retention: 68% of the nominal capacity at 8C instead of 11%.

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