• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Physical and electrochemical properties of low molecular weight poly(ethylene glycol)-bridged polysilsesquioxane organic-inorganic composite electrolytes via sol-gel process
【24h】

Physical and electrochemical properties of low molecular weight poly(ethylene glycol)-bridged polysilsesquioxane organic-inorganic composite electrolytes via sol-gel process

机译：低分子量聚（乙二醇）桥联的聚倍半硅氧烷有机-无机复合电解质的溶胶-凝胶法物理和电化学性能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A new class of ionic conducting organic/inorganic hybrid composite electrolyte with high conductivity, better electrochemical stability and mechanical behavior was prepared through the sol-gel processing between ethylene-bridged polysilsesquioxane and poly(ethylene glycol) (PEG). The composite electrolyte with 0.05 LiCIO4 per PEG repeat unit has the best conductivity up to 10(-4) S/cm at room temperature with the transference number up to 0.48 and an electrochemical stability window as high as 5.5 V versus Li/Li+. Moreover, the effect of the PEG chain length on the properties of the composite electrolyte has also been studied. The interactions between ions and polymer have also been investigated for the composite electrolyte in the presence of LiClO4 by means of FTIR, DSC, and TGA. The results indicated the interaction of Li+ ions with the ether oxygen of the PEG, and the formation of transient crosslinking with LiClO4, resulting in an increase of the T-g of the composite electrolyte. The VTF-type behavior of the ionic conductivity implied that the diffusion of the charge carriers was assisted by the segmental motions of the polymer chains. (c) 2006 Wiley Periodicals, Inc.
机译：通过乙烯桥联的倍半硅氧烷与聚乙二醇（PEG）之间的溶胶-凝胶法制备了一种新型的高导电性，更好的电化学稳定性和机械性能的离子导电有机/无机杂化复合电解质。每个PEG重复单元含0.05 LiCIO4的复合电解质在室温下的最佳电导率最高为10（-4）S / cm，转移数最高为0.48，电化学稳定性窗口相对于Li / Li +高达5.5V。此外，还研究了PEG链长对复合电解质性能的影响。还通过FTIR，DSC和TGA研究了在LiClO4存在下复合电解质中离子与聚合物之间的相互作用。结果表明，Li +离子与PEG的醚氧相互作用，并与LiClO4瞬时交联，导致复合电解质的T-g增加。离子电导率的VTF型行为表明，聚合物链的分段运动有助于电荷载流子的扩散。 （c）2006年Wiley Periodicals，Inc.

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号