The molar conductivity behavior in polymer electrolytes at low salt concentrations; A Raman study of poly(propylene glycol) complexed with LiCF3SO3

Ferry, Anders; Jacobsson, Per; Torell, L. M.

doi:10.1016/0013-4686(95)00196-l

Cited by 75 publications

(98 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is consistent with a percolation mechanism, which is often invoked to account for electronic conduction in filled polymers 21 and has also been suggested to account for conductivity in PPO/lithium salt SPEs. 26 In the case where the clusters are not connected, the polymer motion may play a significant part in determining the conductivity. The increasing free volume with increasing salt content for the lower salt compositions suggests that the salt is "pushing" the polymer chains further apart (plasticization) resulting in a decreasing glass-transition temperature.…”

Section: Model For Conduction In Pise Electrolytesmentioning

confidence: 99%

Compositional dependence of free volume in PAN/LiCF3SO3 polymer-in-salt electrolytes and the effect on ionic conductivity

Forsyth

Sun

MacFarlane

et al. 2000

J. Polym. Sci. B Polym. Phys.

View full text Add to dashboard Cite

Section: Model For Conduction In Pise Electrolytesmentioning

confidence: 99%

Compositional dependence of free volume in PAN/LiCF3SO3 polymer-in-salt electrolytes and the effect on ionic conductivity

Forsyth

Sun

MacFarlane

et al. 2000

J. Polym. Sci. B Polym. Phys.

View full text Add to dashboard Cite

“…Ferry et al (11) have shown that the presence of multiple bands in the spectral region shown in Figure 2 indicates lithium-triflate interactions perturbing the SO3 stretch. Clearly, such interactions are present at all concentrations.…”

Section: Resultsmentioning

confidence: 99%

Electrophoretic NMR measurements of lithium transference numbers in polymer gel electrolytes

Dai¹,

Sanderson²,

Davey³

et al. 1997

View full text Add to dashboard Cite

We describe here our application of electrophoretic NMR (ENMR) to the determination of transference numbers of lithium ions in polymer gel electrolytes. Two types of polymer gel electrolytes were selected for this study: PAN /PC/EC/LiX and Kynar/PC/LiX. Results obtained for the two types of gels are compared and the effects of anion, polymer-ion interactions and ion-ion interactions on lithium transference numbers are discussed.Significant differences in the behavior of transference numbers with salt concentration are observed for the two types of gels. This may be due to the extent of interaction between the polymer and the ions. Implications for solid polymer electrolytes are discussed.

show abstract

“…8, respectively. The relative concentrations of each ionic species were calculated as the ratio of the deconvoluted area under the peak with maximum value to the total area of the band envelope 27,28 and summarized in Table I.…”

Section: Resultsmentioning

confidence: 99%

FT-raman studies on ionic interactions in π-complexes of poly(hexamethylenevinylene) with silver salts

et al. 2006

View full text Add to dashboard Cite

Remarkably high and stable separation performance for olefin/paraffin mixtures was previously reported by facilitated olefin transport through π-complex membranes consisting of silver ions dissolved in poly(hexamethylenevinylene) (PHMV). In this study, the π-complex formation of AgBF 4 , AgClO 4 and AgCF 3 SO 3 with PHMV and their ionic interactions were investigated. FT-Raman spectroscopy showed that the C=C stretching bands of PHMV shifted to a lower frequency upon incorporation of silver salt, but the degree of peak shift depended on the counteranions of salt due to different complexation strengths. The symmetric stretching modes of anions indicated the presence of only free ions up to [C=C]:[Ag]=1:1, demonstrating the unusually high solubility of silver salt in PHMV. Above the solubility limit, the ion pairs and higher-order ionic aggregates started to form. The coordination number of silver ion for C=C of PHMV was in the order AgBF 4 AgClO 4 AgCF 3 SO 3 , but became similar at [C=C]:[Ag]=1:1. The different coordination number was interpreted in terms of the different transient crosslinks of silver cations in the complex, which may be related to both the interaction strength of the polymer/silver ion and the bulkiness of the counteranion.

show abstract

The molar conductivity behavior in polymer electrolytes at low salt concentrations; A Raman study of poly(propylene glycol) complexed with LiCF3SO3

Cited by 75 publications

References 15 publications

Compositional dependence of free volume in PAN/LiCF3SO3 polymer-in-salt electrolytes and the effect on ionic conductivity

Compositional dependence of free volume in PAN/LiCF3SO3 polymer-in-salt electrolytes and the effect on ionic conductivity

Electrophoretic NMR measurements of lithium transference numbers in polymer gel electrolytes

FT-raman studies on ionic interactions in π-complexes of poly(hexamethylenevinylene) with silver salts

Contact Info

Product

Resources

About