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The Stone Age Revisited: Building a Monolithic Inorganic Lithium-Ion Battery

机译:重温石器时代:构建整体式无机锂离子电池

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摘要

A new path for the design of safe and efficient, all-solid-state Li-ion batteries by spark plasma sintering (SPS) is considered. To reach a good electrochemical performance from such batteries, several parameters are investigated, such as the composite-electrode formulation (active material/electrolyte/ carbon ratio) and the influence of the sintering parameters on their compactness. The formulation is optimized to ensure good ionic and electronic percolation through the composite electrode's volume. The compactness has to be sufficient to guarantee a good mechanical aspect, while the residual porosity in the composite electrode allows electrode-volume changes upon insertion and deinsertion, preserving the electrode/electrolyte interfaces, which are crucial in such technology. Based on these investigations, an all-solid-state battery with a surface capacity of 2.2 mA h cm~(-2) is assembled by SPS, displaying a promising electrochemical performance at 80 ℃.
机译:考虑了通过火花等离子体烧结(SPS)设计安全,高效的全固态锂离子电池的新途径。为了从这种电池获得良好的电化学性能,研究了几个参数,例如复合电极配方(活性材料/电解质/碳比)以及烧结参数对其紧凑性的影响。配方经过优化,可确保通过复合电极的体积实现良好的离子和电子渗透。紧密度必须足以保证良好的机械外观,而复合电极中的残留孔隙率则允许在插入和插入时改变电极体积,从而保留电极/电解质界面,这在此类技术中至关重要。在此基础上,采用SPS组装了表面容量为2.2 mA h cm〜(-2)的全固态电池,在80℃时具有良好的电化学性能。

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  • 来源
    《Advanced Functional Materials》 |2012年第10期|p.2140-2147|共8页
  • 作者单位

    Centre d'Elaboration de Materiaux et d'Etudes Structurales-CNRS UPR 8011, 29, Rue Jeanne Marvig 31055 Toulouse, France;

    Laboratoire de Reactivite et de Chimie des Solides (UMR 6007)University de Picardie Jules Verne 80039 Amiens, France;

    Universite d'Aix Marseille I, II, III-CNRS (UMR 7246)Centre Saint Jerome 13397 Marseille Cedex 20, France Centre de recherche REMINEX,Groupe MANACEM, Site de Hajar, BP469,Marrakech medina, Marrakech, Maroc;

    Universite d'Aix Marseille I, II, III-CNRS (UMR 7246)Centre Saint Jerome 13397 Marseille Cedex 20, France;

    Universite d'Aix Marseille I, II, III-CNRS (UMR 7246)Centre Saint Jerome 13397 Marseille Cedex 20, France;

    Laboratoire de Reactivite et de Chimie des Solides (UMR 6007)University de Picardie Jules Verne 80039 Amiens, France;

    Laboratoire de Reactivite et de Chimie des Solides (UMR 6007)University de Picardie Jules Verne 80039 Amiens, France;

    Laboratoire de Reactivite et de Chimie des Solides (UMR 6007)University de Picardie Jules Verne 80039 Amiens, France;

    Centre d'Elaboration de Materiaux et d'Etudes Structurales-CNRS UPR 8011, 29, Rue Jeanne Marvig 31055 Toulouse, France;

    Centre d'Elaboration de Materiaux et d'Etudes Structurales-CNRS UPR 8011, 29, Rue Jeanne Marvig 31055 Toulouse, France;

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