Topic
Ionic conductivity
About: Ionic conductivity is a research topic. Over the lifetime, 19412 publications have been published within this topic receiving 519167 citations.
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TL;DR: The ionic conductivity of Li 3 N crystals doped with various metal ions (magnesium, copper and aluminum) or hydrogen has been investigated in this paper, where a model is proposed for the action of hydrogen whereby the Li-N bonds next to an NH 2-group are weakened thereby facilatating the creation of Li + Frenkel defects and the vacancy migration.
138 citations
TL;DR: In this article, the structure, thermal expansion coefficients and ionic and electronic conductivities of Ce1−xPrxO2−δ (x=0.50) solid solutions, prepared hydrothermally for the first time, were investigated.
138 citations
TL;DR: The analysis shows that the ionic conductivity can be decoupled from segmental dynamics and the strength of the decoupling correlates with the fragility but not with the glass transition temperature, prompting a revision of the current picture of ionic transport in polymer electrolytes.
Abstract: We present detailed studies of the relationship between ionic conductivity and segmental relaxation in polymer electrolytes. The analysis shows that the ionic conductivity can be decoupled from segmental dynamics and the strength of the decoupling correlates with the fragility but not with the glass transition temperature. These results call for a revision of the current picture of ionic transport in polymer electrolytes. We relate the observed decoupling phenomenon to frustration in packing of rigid polymers, where the loose local structure is also responsible for the increase in their fragility.
138 citations
TL;DR: In this article, a series of ionic liquid-epoxy resin composites were prepared to identify the optimum system microstructure required to achieve a high level of multifunctionality, and the ionic conductivity, mechanical properties, thermal stability and morphology of the cured epoxy based structural electrolytes were studied as a function of phase composition for three fully formulated high performance structural epoxy systems.
Abstract: ‘Structural electrolytes’ retain the desirable mechanical characteristics of structural (epoxy) resins whilst introducing sufficient ionic conductivity to operate as electrolytes in electrochemical devices. Here, a series of ionic liquid–epoxy resin composites were prepared to identify the optimum system microstructure required to achieve a high level of multifunctionality. The ionic conductivity, mechanical properties, thermal stability and morphology of the cured epoxy based structural electrolytes were studied as a function of phase composition for three fully formulated high performance structural epoxy systems. At only 30 wt% of structural resin and 70 wt% of ionic liquid based electrolyte, stiff monolithic plaques with thicknesses of 2–3 mm were obtained with a room temperature ionic conductivity of 0.8 mS cm−1 and a Young's modulus of 0.2 GPa. This promising performance can be attributed to a long characteristic length scale spinodal microstructure, suggesting routes to further optimisation in the future.
138 citations
TL;DR: In this article, a new type of dimensionally stable, flexible gel-type electrolyte membranes with a relatively wide electrochemical stability, high lithium ion conductivity and other desirable properties have been prepared by immobilizing N - n -butyl- N -ethylpyrrolidinium N, N -bis(trifluoromethane)sulfonimide-lithium N, N-bis (triffluoromethemide-sulfinimide)-lithiam N, n -bis (triclithia
138 citations