作者: Jae Won Park , Euh Duck Jeong , Mi-Sook Won , Yoon-Bo Shim
DOI: 10.1016/J.JPOWSOUR.2006.01.029
关键词: Chemical engineering 、 Differential scanning calorimetry 、 Conductivity 、 Carboxylic acid 、 Thermal stability 、 Thermal analysis 、 Cyclic voltammetry 、 Materials science 、 Mineralogy 、 Composite number 、 Ionic conductivity
摘要: Abstract Composite solid polymer electrolytes (CSPEs) consisting of polyethyleneoxide (PEO), LiClO 4 , organic acids (malonic, maleic, and carboxylic acids), and/or Al 2 O 3 were prepared in acetonitrile. CSPEs characterized by Brewster Angle Microscopy (BAM), thermal analysis, ac impedance, cyclic voltammetry, tested for charge–discharge capacity with the Li or LiNi 0.5 Co electrodes coated on stainless steel (SS). The morphologies CSPE films homogeneous porous. differential scanning calorimetric (DSC) results suggested that performance film was highly enhanced acid inorganic additives. composite membrane doped ceramic showed good conductivity stability. impedance data, processed non-linear least square (NLLS) fitting, conducting properties films. ionic (PEO) 8 :citric (99.95:0.05, w/w%) 3.25 × 10 −4 S cm −1 1.81 × 10 at 30 °C. has further improved to 3.81 × 10 20 °C adding 20 w/w% filler + 0.05% composite. experimental data full cell an upper limit voltage window 4.7 V versus Li/Li + room temperature.