A search for a single-ion-conducting polymer electrolyte: Combined effect of anion trap and inorganic filler

被引:45
作者
Mazor, H. [1 ]
Goodnitsky, D. [1 ,2 ]
Peled, E. [1 ]
Wieczorek, W. [3 ]
Scrosati, B. [4 ]
机构
[1] Tel Aviv Univ, Sch Chem, IL-69978 Tel Aviv, Israel
[2] Tel Aviv Univ, Wolfson Appl Mat Res Ctr, IL-69978 Tel Aviv, Israel
[3] Warsaw Univ Technol, Fac Chem, PL-00664 Warsaw, Poland
[4] Univ Roma La Sapienza, Dept Chem, Rome, Italy
关键词
polymer electrolyte; transference number;
D O I
10.1016/j.jpowsour.2007.09.056
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Lithium trifluoromethanesulfonate: polyethylene oxide (PEO) polymer electrolytes modified by 1,1,3,3,5,5-meso-hexaphenyl-2,2,4,4,6,6-mesohexamethyl-6-pyrrole (C6P) and nanosize silica filler were characterized by scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and electrochemical means. An increase in the lithium transference number is observed upon incorporation of even a small amount of C6P. Silica facilitates interchain ion hopping in polymer electrolytes and possibly introduces an additional interfacial ion-conduction path without decreasing t(+). Stable solid electrolyte interphase resistance (SEI) was achieved in the polymer electrolytes containing calix[6]pyrrole and silica. It was found that lithium single-ion-conductive polymers with good electrochemical stability and ion transport properties have the potential for considerably boosting the performance of lithium/molybdenum oxysulfide all-solid-state thin film batteries. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:736 / 743
页数:8
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