| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1294843 | Solid State Ionics | 2011 | 4 Pages |
Abstract
The ionic conductivity, σ, of mixtures of poly(ethylene oxide) (PEO) and lithium bis(trifluoromethanesulfone)imide (LiTFSI) was measured as a function of molecular weight of the PEO chains, M, over the range 0.2–5000 kg/mol. Our data are consistent with an expression σ = σ0 + K/M proposed by Shi and Vincent [Solid State Ionics 60 (1993)] where σ0 and K are exponential and linear functions of inverse temperature respectively. Explicit expressions for σ0 and K are provided.
► PEO/LiTFSI electrolyte conductivity measured over wide molecular weight range ► Conductivity contributions arise from both segmental motion and chain diffusion. ► Explicit expressions provided for molecular weight dependence of conductivity
Related Topics
Physical Sciences and Engineering
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Electrochemistry
Authors
Alexander A. Teran, Maureen H. Tang, Scott A. Mullin, Nitash P. Balsara,