Electrochemical Performance of Solid Polymer Electrolyte PEO_(20)-LiTf-Urea_(1.5) |
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| Authors: | ZHANG Ding YAN Hui ZHANG Huan QI Lu Beijing National Laboratory for Molecular Sciences |
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| Institution: | ZHANG Ding,YAN Hui,ZHANG Huan and QI Lu* Beijing National Laboratory for Molecular Sciences,Institute of Applied Chemistry,College of Chemistry and Molecular Engineering,Peking University,Beijing 100871,P. R. China |
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| Abstract: | A new solid polymer electrolyte PEO20-LiTf-Urea1.5 was prepared by solution casting technique. The energy of frontier orbitals for the components of the electrolyte was predicted by quantum chemistry calculations, and TG stability and electrochemical features were measured. Urea exhibited a lower HOMO energy than PEO, implying its enhanced stability against electrochemical oxidation. Experimentally addition of urea increases the ionic conductivity, which guarantees conductivity requirement for lithium ion b... |
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| Keywords: | Solid polymer electrolyte Urea Solution-casting technique |
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