Electrochemical measurement of transference numbers in polymer electrolytes

Polymer electrolytes are promising materials for electrochemical device applications, namely, high energy density rechargeable batteries, fuel cells, supercapacitors, electrochromic displays, etc. The area of polymer electrolytes has gone through various developmental stages, i.e. from dry solid polymer electrolyte (SPE) systems to plasticized, gels, rubbery to micro/nano-composite polymer electrolytes. The polymer gel electrolytes, incorporating organic solvents, exhibit room temperature conductivity as high as ~10−3 S cm−1, while dry SPEs still suffer from poor ionic conductivity lower than 10−5 S cm−1. Several approaches have been adopted to enhance the room temperature conductivity in the vicinity of 10−4 S cm−1 as well as to improve the mechanical stability and interfacial activity of SPEs. In this review, the criteria of an ideal polymer electrolyte for electrochemical device applications have been discussed in brief along with presenting an overall glimpse of the progress made in polymer electrolyte materials designing, their broad classification and the recent advancements made in this branch of materials science. The characteristic advantages of employing polymer electrolyte membranes in all-solid-state battery applications have also been discussed.

https://iopscience.iop.org/article/10.1088/0022-3727/41/22/223001/pdf

Solid polymer electrolytes: materials designing and all-solid-state battery applications: an overview

La conductivite ionique de sels de lithium dissous dans du polyoxyde d'ethylene, diminue par stockage, a temperature ambiante. Ceci est du a une cristallisation qui peut etre inhibee par addition de caoutchouc nitrile et d'un macromere de polyoxyde d'ethylene

Polymer electrolytes: the route towards solid polymer electrolytes with stable electrochemical performances upon long term storage

Beyond PEO-Alternative host materials for Li+-conducting solid polymer electrolytes

The history of polymer electrolytes

Ionic conductivity σ and mobility μ in the amorphous network polymers from poly(propylene oxide) (PPO) containing lithium perchlorate (LiClO4) at the concentration of [LiClO4]/[PO unit]=0.042 and 0.076 were investigated by means of complex impedance and time‐of‐flight methods. The σ values of the PPO–LiClO4 complexes reached 10−5 S cm−1 at 70 °C. The temperature dependence of σ deviated from a single Arrhenius behavior above a critical temperature (−1 °C and 11 °C) which approximately corresponded to the glass transition temperature Tg. The μ values were relatively high and changed from 10−6 to 10−5 cm2 V−1 s−1 in the temperature range of 40–100 °C. The Nernst–Einstein equation correlated μ with the ionic diffusion coefficient D. The Williams–Landel–Ferry equation with C1≂5 and C2≂30–50 held with a temperature dependence of D in the order of 10−8–10−7 cm2 s−1. The change in the number of ionic carriers n with temperature obeyed the Arrhenius equation with the activation energy of 0.26 and 0.34 eV. The deg...

Ionic conductivity and mobility in network polymers from poly(propylene oxide) containing lithium perchlorate.

Polymere prepare a partir de bisphenylisocyanate de methylene, ethylenediamine et polyoxyde de propene de masse moleculaire 2000 ou 3000

Morphology and ionic conductivity of polymer complexes formed by segmented polyether poly(urethane urea) and lithium perchlorate

Relation entre les caracteristiques moleculaires et la conductivite electrique de ces complexes. Influence des caracteristiques moleculaires sur la relation entre la temperature et la conductivite

Ionic conductivity of polymer complexes formed by poly(ethylene succinate) and lithium perchlorate

Relation entre les caracteristiques moleculaires et l'influence de la temperature sur la conductivite

Ionic conductivity of polymer complexes formed by poly(β-propiolactone) and lithium perchlorate

Temperature Dependence of Ionic Conductivity of Crosslinked Poly(propylene oxide) Films Dissolving Lithium Salts and Their Interfacial Charge Transfer Resistance in Contact with Lithium Electrodes

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Temperature dependence of ionic conductivity of crosslinked poly(propylene oxide) films dissolving lithium salts and their interfacial charge transfer resistance in contact with lithium electrodes

Zentaro Ohtaki

Papers

Ionic conductivity and mobility in network polymers from poly(propylene oxide) containing lithium perchlorate.

Morphology and ionic conductivity of polymer complexes formed by segmented polyether poly(urethane urea) and lithium perchlorate

Ionic conductivity of polymer complexes formed by poly(ethylene succinate) and lithium perchlorate

Ionic conductivity of polymer complexes formed by poly(β-propiolactone) and lithium perchlorate

Temperature dependence of ionic conductivity of crosslinked poly(propylene oxide) films dissolving lithium salts and their interfacial charge transfer resistance in contact with lithium electrodes