Effect of organic acids and nano-sized ceramic doping on PEO-based solid polymer electrolytes

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 engineeringDifferential scanning calorimetryConductivityCarboxylic acidThermal stabilityThermal analysisCyclic voltammetryMaterials scienceMineralogyComposite numberIonic 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.

参考文章(24)
Hee-Jin Rhoo, Hee-Tak Kim, Jung-Ki Park, Taek-Sung Hwang, Ionic-Conduction in Plasticized PVC/PMMA Blend Polymer Electrolytes Electrochimica Acta. ,vol. 42, pp. 1571- 1579 ,(1997) , 10.1016/S0013-4686(96)00318-0
F. Croce, G. B. Appetecchi, L. Persi, B. Scrosati, Nanocomposite polymer electrolytes for lithium batteries Nature. ,vol. 394, pp. 456- 458 ,(1998) , 10.1038/28818
Jaana Ennari, Lars-Olof Pietilä, Ville Virkkunen, Franciska Sundholm, Molecular dynamics simulation of the structure of an ion-conducting PEO-based solid polymer electrolyte Polymer. ,vol. 43, pp. 5427- 5438 ,(2002) , 10.1016/S0032-3861(02)00432-9
Binod Kumar, Lawrence G. Scanlon, Polymer-ceramic composite electrolytes Journal of Power Sources. ,vol. 52, pp. 261- 268 ,(1994) , 10.1016/0378-7753(94)02147-3
D Golodnitsky, G Ardel, E Peled, Ion-transport phenomena in concentrated PEO-based composite polymer electrolytes Solid State Ionics. ,vol. 147, pp. 141- 155 ,(2002) , 10.1016/S0167-2738(01)01036-0
Munichandraiah Nookala, Binod Kumar, Stanley Rodrigues, Ionic conductivity and ambient temperature Li electrode reaction in composite polymer electrolytes containing nanosize alumina Journal of Power Sources. ,vol. 111, pp. 165- 172 ,(2002) , 10.1016/S0378-7753(02)00303-8
G.B Appetecchi, F Croce, L Persi, F Ronci, B Scrosati, Transport and interfacial properties of composite polymer electrolytes Electrochimica Acta. ,vol. 45, pp. 1481- 1490 ,(2000) , 10.1016/S0013-4686(99)00363-1