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一种新型微孔聚合物电解质的制备与表征
Authors
姜艳霞
孙世刚
+4 more
庄全超
王野
董全峰
陈作锋
Publication date
15 April 2005
Publisher
Abstract
以介孔分子筛SBA-15为填料,探索出一种无需使用增塑剂制备微孔型聚合物电解质的新方法.当SBA-15︰PVdF-HFP(偏氟乙烯-六氟丙烯共聚物)=3︰8时,所制备的复合固体聚合物电解质(CSPE)室温电导率达0.30mS·cm~(-1).红外透射光谱显示,成膜液中溶剂分子和SBA-15分子筛之间的相互作用所引发的相分离导致微孔的形成.X射线衍射(XRD)结果表明,SBA-15分子筛的加入,降低了聚合物电解质的结晶度,而SBA-15分子筛仍保持原有的骨架结构.所组装的Li/CSPE/MCF电池具有较为平稳的充放电平台,首次循环的库仑效率约为85.0%,经过20次循环后,容量保持率为94.0%
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Last time updated on 10/06/2020