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首页> 外文期刊>Advanced Functional Materials >Cycling Characteristics of Lithium Powder Polymer Batteries Assembled with Composite Gel Polymer Electrolytes and Lithium Powder Anode
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Cycling Characteristics of Lithium Powder Polymer Batteries Assembled with Composite Gel Polymer Electrolytes and Lithium Powder Anode

机译：复合凝胶聚合物电解质与锂粉阳极组装的锂粉聚合物电池的循环特性

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摘要

Novel composite gel polymer electrolytes exhibiting high ionic conductivity and good mechanical stability are prepared, and their electrochemical properties are characterized. As lithium ion sources of a single ion conductor, the core-shell structured SiO_2(Li~+) nanoparticles with uniform spherical shape are synthesized and used as functional fillers in the composite gel polymer electrolytes. By using the composite gel polymer electrolytes, the lithium powder polymer batteries composed of a lithium powder anode and a layered lithium vanadate (LiV_3O_8) cathode are assembled and their cycling performance is evaluated. The resulting lithium powder polymer batteries deliver a high discharge capacity of 264 mAh g~(-1) at room temperature and exhibit good capacity retention even at high current rates. The morphological analysis of the lithium powder anode reveals that the dendrite growth during cycling can be effectively suppressed by using the composite gel polymer electrolytes.
机译：制备了具有高离子电导率和良好机械稳定性的新型复合凝胶聚合物电解质，并对其电化学性能进行了表征。作为单一离子导体的锂离子源，合成了具有均匀球形的核-壳结构的SiO_2（Li〜+）纳米颗粒，并用作复合凝胶聚合物电解质中的功能填料。通过使用复合凝胶聚合物电解质，组装由锂粉末阳极和层状钒酸锂（LiV_3O_8）阴极组成的锂粉末聚合物电池，并评估其循环性能。所得的锂粉末聚合物电池在室温下提供264 mAh g〜（-1）的高放电容量，并且即使在高电流速率下也显示出良好的容量保持性。锂粉末阳极的形态分析表明，通过使用复合凝胶聚合物电解质可以有效地抑制循环过程中的枝晶生长。

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  • 来源
    《Advanced Functional Materials》 |2013年第8期|1019-1027|共9页
  • 作者

    Yoon-Sung Lee; Jae Ha Lee; Ji-Ae Choi; Woo Young Yoon; Dong-Won Kim;

  • 作者单位

    Department of Chemical Engineering Hanyang University Seoul 133-791, Korea;

    Department of Materials Science and Engineering Korea University Seoul 136-701, Korea;

    Department of Chemical Engineering Hanyang University Seoul 133-791, Korea;

    Department of Materials Science and Engineering Korea University Seoul 136-701, Korea;

    Department of Chemical Engineering Hanyang University Seoul 133-791, Korea;

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