Impact of “Super Acid” like filler on the properties of a PEGDME/LiClO₄ system

详细信息	查看全文 | 推荐本文 |

• 作者：L. Sannier ; A. Zalewska ; W. Wieczorek ; M. Marczewski ; H. Marczewska
• 关键词：Composite electrolyte ; Al₂O₃ filler ; Super acid groups ; Lithium interface
• 刊名：Electrochimica Acta
• 出版年：2007
• 期刊代码：30_00134686
• 类别：ch
• 出版时间：10 May 2007
• 卷：52
• 期：18
• 页码：5685-5689
• 文件大小：317 K

摘要

Composite polymer electrolyte based on a new class of filler added to a PEGDME/LiClO₄ model system has been investigated. “Ceramic super acids” used consist of grafted SO₄²⁻ groups on Al₂O₃ particles surface obtained by calcinations route. Conductivity, DSC and FT-IR measurements performed on such composite electrolytes, when compared to the model PEGDME/LiClO₄ electrolyte, showed only slight improvement of their inner characteristics. In contrary, Li/Li symmetric cells study, by means of impedance spectroscopy, has presented a spectacular decrease of the interfacial resistance compare to the model electrolyte. This result opens a new pathway of investigation to master the lithium metal/polymer electrolyte interface.