Ion-Containing Networks: Recent Results Concerning Transport Properties

Gandini, Alessandro; LeNest, Jean-François; Leveque, M.; Cheradame, Hervé

doi:10.1007/978-94-009-4185-4_35

Cited by 5 publications

(2 citation statements)

References 5 publications

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“…3 This paper gives an account of a quantitative investigation which complements a previous brief report. 4 Experimental Section A wide range of polyether networks was synthesized in the presence or absence of LiC104. The operations leading to such materials are described below.…”

Section: Introductionmentioning

confidence: 99%

Influence of lithium perchlorate on the properties of polyether networks: specific volume and glass transition temperature

Nest¹,

Gandini²,

Cheradame³

et al. 1988

Macromolecules

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His values of 0FSM and f/,DS were revised by us, as shown in the text. (45) For the generalized Domb-Gillis-Wilmers segment distribu-tion W(r,n) = cy exp[-(r/(r"2)1/2)'] and (r"2) = Are2", Tsunashima et al.4 have used that l = 2.80, t = 2.40, and 2v = 1.166. The pseudo-Gaussian distribution has l = t = 2 and 2v = 1.2, and the Domb distribution by Barrett26 has l = t and 2v = 1.2. (46) Muthukumar, M.; Nickel, B. G.

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Section: Introductionmentioning

confidence: 99%

Influence of lithium perchlorate on the properties of polyether networks: specific volume and glass transition temperature

Nest¹,

Gandini²,

Cheradame³

et al. 1988

Macromolecules

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“…A possible solution to this problem would be to immobilize one ion by grafting it to the polymer so that the transference number of the counterion would then be equal to unity. However, only limited success has been obtained by Bannister et al, (36), who used polyanionic polymers with alkylsulfonic acids and perfluoroalkyl carboxylic acids, or by Gandini et al (37), who included phosphate ions in their polyethers networks.…”

mentioning

confidence: 99%

Experimental Analysis of the Scaling Properties of Solid Polymer Electrolytes upon Five Years of Storage: From Fractal Crystallization to Carrier Relaxation

Hamaide

Guyot

Méhauté

et al. 1989

J. Electrochem. Soc.

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The performances of solid-state ambient-temperature batteries over long time periods are found to depend strongly on the crystallization processes of the electrolytes. Some advanced materials displaying stable electrochemical properties were prepared and studied by ac measurements in an attempt to obtain a more precise knowledge of the influence of the crystallization processes of nonhomogeneous media upon the ionic conductivity. The impedance spectra have been fully described and the physical origin of each parameter is emphasized. The results are discussed in terms of an irreversible transfer of the ionic carriers across "bulk interfaces," which may be defined as the storage location of the space charges, or more precisely as the geometrical support of any energetic singularity with respect to any intensive thermodynamic parameter. The bulk dynamic behavior of the ionic carriers in such a l~eterogeneous medium is described by using the fractal geometry concept. The dispersive index ~ is shown to be related to the fractal dimension of the media and is suggested to be connected to its crystallization state. Furthermore, some correlations between the different relaxation processes were described. The aging is found not to alter the intrinsic mobility of the ionic carriers in the amorphous phase and may be considered as a dimensional transition of the geometrical metric of the dissipative domains in the medium, and not only a simple percolation network evolution.

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Crosslinked polyethers as media for ionic conduction

1988

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A broad outline is given of a comprehensive investigation dealing with solid polymeric electrolytes containing ionic species. These materials are based on various types of polyethers (homopolymers, block and graft copolymers) crosslinked via urethane chemistry and either filled with a salt or transformed into ionomers with the anions attached to the chains. The properties studied were specific volume, swelling, glass transition temperature, viscoelasticity, ionic conductivity, transport numbers, magnetic relaxation of nuclei from both the polymer chains and the ions, and redox stability. Mechanisms and models are proposed to explain chain partitioning by cations and the mode of ionic transport. An all‐solid‐state battery was prepared with one of these materials to prove its good performance.

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Ion-Containing Networks: Recent Results Concerning Transport Properties

Cited by 5 publications

References 5 publications

Influence of lithium perchlorate on the properties of polyether networks: specific volume and glass transition temperature

Influence of lithium perchlorate on the properties of polyether networks: specific volume and glass transition temperature

Experimental Analysis of the Scaling Properties of Solid Polymer Electrolytes upon Five Years of Storage: From Fractal Crystallization to Carrier Relaxation

Crosslinked polyethers as media for ionic conduction

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