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Preparation of a ROMP-type imidazolium-functionalized norbornene ionic liquid block copolymer and the electrochemical property for lithium-ion batteries polyelectrolyte membranes

机译：锂离子电池锂离子电池的锂离子电池型离子离子液嵌段共聚物的制备聚电解质膜的电化学性能

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摘要

Imidazolium-functionalized norbornene ionic liquid block copolymers are synthesized via ring-opening metathesis polymerization (ROMP). The solid polyelectrolytes were prepared by blending the copolymers with various contents of lithium bis(trifluoromethanesulphonyl)imide. The effects of the polymerized ionic liquid (PILs) compositions on the properties, morphology, and ionic conductivity of the polyelectrolytes are investigated. The polymer with 50.7 mol% PIL displays a long-range ordered lamellar structure, and its corresponding polyelectrolyte achieves the best ionic conductivity with 7.44 x 10(-6) S cm(-1) at 30 degrees C and 4.68 x 10(-4) S cm(-1) at 100 degrees C, respectively. The ionic conductivity is enhanced by 1 order of magnitude compared to the polyelectrolytes with lower polymerized ionic liquid block compositions. In addition, the polyelectrolytes are electrochemically stability up to 4.2 V versus Li/Li+, indicating their suitable electrochemical property for lithium-ion battery application.
机译：通过开环复分解聚合（ROMP）合成咪唑鎓官能化降冰片烯离子液嵌段共聚物。通过将共聚物与各种含量的锂双（三氟甲磺酰基）酰亚胺共混来制备固体电解质。研究了聚合离子液体（Pils）组合物对聚电解质的性质，形态和离子电导率的影响。具有50.7mol％PIL的聚合物显示出长距离有序的层状结构，其相应的聚电解质在30℃和4.68×10（-4）下以7.44×10（-6）Scm（-​​1）达到最佳离子电导率。4.68×10（-4 ）分别在100摄氏度下的Scm（-​​1）。与具有低聚离子液体嵌段组合物的聚电解质相比，离子电导率增强1个级。此外，聚电解质是电化学稳定性，高达4.2V与Li / Li +，表明它们适用于锂离子电池的电化学性能。

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  • 来源
    《RSC Advances》 |2015年第54期|共8页
  • 作者

    Wang Juan; He Xiaohui; Zhu Hongyu; Chen Defu;

  • 作者单位

    Nanchang Univ Sch Mat Sci &

    Engn Nanchang 330031 Peoples R China;

    Nanchang Univ Sch Mat Sci &

    Engn Nanchang 330031 Peoples R China;

    Nanchang Univ Sch Mat Sci &

    Engn Nanchang 330031 Peoples R China;

    Nanchang Univ Sch Civil Engn &

    Architecture Nanchang 330031 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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