Mass and Charge Transport in a Cross-Linked Polyether-Based Electrolyte. The Role of Ion Pairs
作者： Shahmahmood Obeidi , Nicolaas A. Stolwijk , Steven J. Pas
DOI: 10.1021/MA0519718
关键词:
摘要: In an amorphous solid polymer electrolyte the positive and negative ions are found to move much faster in form of neutral pairs than individually. Although fraction ion turns out be small (less 10%), provide most significant contribution transport cations being crucial for battery operation. This is a striking new result detailed comparison tracer diffusion experiments electrical conductivity measurements made on cross-linked random copolymer ethylene oxide propylene complexed with sodium iodide. The study utilizes radioactive isotopes iodine tiny amounts trace diffusivity both species overall charge due joint effect anions monitored by impedance spectroscopy. A thorough evaluation experimental data shows that all mobile species, although different magnitude, same temperature dependence. conseq...
acs.org
sci-hub.se 参考文章(20)
S. Voss, Á. W. Imre, H. Mehrer, Mixed-alkali effect in Na–Rb borate glasses: A tracer diffusion and electrical conductivity study Physical Chemistry Chemical Physics. ,vol. 6, pp. 3669- 3675 ,(2004) , 10.1039/B315772E
Andrea G Bishop, Douglas R MacFarlane, Don McNaughton, Maria Forsyth, None, Triflate ion association in plasticized polymer electrolytes Solid State Ionics. ,vol. 85, pp. 129- 135 ,(1996) , 10.1016/0167-2738(96)00049-5
Oleg Borodin, Grant D. Smith, Molecular Dynamics Simulations of Poly(ethylene oxide)/LiI Melts. 1. Structural and Conformational Properties Macromolecules. ,vol. 31, pp. 8396- 8406 ,(1998) , 10.1021/MA980838V
C.K Chiang, G.T Davis, C.A Harding, J Aarons, Preparation and properties of polymeric solid electrolyte: Polyethylene oxide--sodium iodide complexes Solid State Ionics. pp. 1121- 1123 ,(1983) , 10.1016/0167-2738(83)90140-6
Donald R. Sadoway, Anne M. Mayes, Portable Power: Advanced Rechargeable Lithium Batteries Mrs Bulletin. ,vol. 27, pp. 590- 596 ,(2002) , 10.1557/MRS2002.193
J. J. Fontanella, M. C. Wintersgill, M. K. Smith, J. Semancik, C. G. Andeen, Effect of high pressure on electrical relaxation in poly(propylene oxide) and electrical conductivity in poly(propylene oxide) complexed with lithium salts Journal of Applied Physics. ,vol. 60, pp. 2665- 2671 ,(1986) , 10.1063/1.337093
Mark A. Ratner, Abraham Nitzan, Conductivity in polymer ionics. Dynamic disorder and correlation Faraday Discussions of The Chemical Society. ,vol. 88, pp. 19- 42 ,(1989) , 10.1039/DC9898800019
S OBEIDI, B ZAZOUM, N STOLWIJK, Ionic tracer diffusion and dc conductivity in the polymer electrolyte PEO30NaI Solid State Ionics. ,vol. 173, pp. 77- 82 ,(2004) , 10.1016/J.SSI.2004.07.055
M. Forsyth, V.A. Payne, M.A. Ratner, S.W. de Leeuw, D.F. Shriver, Molecular dynamics simulations of highly concentrated salt solutions: Structural and transport effects in polymer electrolytes Solid State Ionics. pp. 1011- 1026 ,(1992) , 10.1016/0167-2738(92)90285-W
Oleg Borodin, Grant D. Smith, Molecular Dynamics Simulations of Poly(ethylene oxide)/LiI Melts. 2. Dynamic Properties Macromolecules. ,vol. 33, pp. 2273- 2283 ,(2000) , 10.1021/MA991429H