Organic template-free synthesis of an open framework silicoaluminophosphate (SAPO) with high thermal stability and high ionic conductivity

Ionic liquids (ILs) represent a real alternative for electrochemical applications due to their remarkable characteristics, namely a very low vapour pressure, low flammability, high thermal stability, wide potential window and high ionic conductivity. In this work, Nyquist plot and impedance spectroscopy at room temperature is proposed as an alternative method to obtain the ionic conductivity for ionic liquids by using an Agilent HP 4284A RLC precision meter. For this propose, the IL 1-butyl-3-methylimidazolium tetrafluoroborate (C4C1Im BF4) was selected and results were compared with the previously obtained from the conductimeter CRISON GLP31.

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Synergistic Coupling between Li6.75La3Zr1.75Ta0.25O12 and Poly(vinylidene fluoride) Induces High Ionic Conductivity, Mechanical Strength, and Thermal Stability of Solid Composite Electrolytes

Journal of the American Chemical Society ◽

10.1021/jacs.7b06364 ◽

2017 ◽

Vol 139 (39) ◽

pp. 13779-13785 ◽

Cited By ~ 262

Author(s):

Xue Zhang ◽

Ting Liu ◽

Shuofeng Zhang ◽

Xin Huang ◽

Bingqing Xu ◽

...

Keyword(s):

Thermal Stability ◽

Ionic Conductivity ◽

Mechanical Strength ◽

Vinylidene Fluoride ◽

High Ionic Conductivity ◽

Composite Electrolytes ◽

Poly Vinylidene Fluoride ◽

Thermal Stability Of

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Biopolymer-chitosan based supramolecular hydrogels as solid state electrolytes for electrochemical energy storage

Chemical Communications ◽

10.1039/c6cc08658f ◽

2017 ◽

Vol 53 (10) ◽

pp. 1615-1618 ◽

Cited By ~ 45

Author(s):

Lujie Cao ◽

Mingyang Yang ◽

Dong Wu ◽

Fucong Lyu ◽

Zhifang Sun ◽

...

Keyword(s):

Thermal Stability ◽

Energy Storage ◽

Solid State ◽

Ionic Conductivity ◽

High Ionic Conductivity ◽

Electrochemical Energy Storage ◽

Supramolecular Hydrogel ◽

Excellent Thermal Stability ◽

Solid State Electrolyte ◽

Electrochemical Energy

A novel biopolymer-chitosan based supramolecular hydrogel type solid state electrolyte was prepared and demonstrated high ionic conductivity, and excellent thermal stability, mouldability, and flexibility.

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(Keynote) Solvate Ionic Liquids and Their Polymer Electrolytes: A New Approach to Achieve Thermal Stability, High Ionic Conductivity, Unusual Solubility, and a Wide Potential Window

ECS Meeting Abstracts ◽

10.1149/ma2018-02/2/94 ◽

2018 ◽

Keyword(s):

Thermal Stability ◽

Ionic Liquids ◽

Ionic Conductivity ◽

Polymer Electrolytes ◽

High Ionic Conductivity ◽

New Approach ◽

Wide Potential

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Defect-Mediated Conductivity Enhancements in Na3-xPn1-xWxS4 (Pn = P, Sb) using Aliovalent Substitutions

10.26434/chemrxiv.9943961.v2 ◽

2019 ◽

Author(s):

Till Fuchs ◽

Sean Culver ◽

Paul Till ◽

Wolfgang Zeier

Keyword(s):

Ionic Conductivity ◽

Vacancy Concentration ◽

Sodium Ion ◽

High Ionic Conductivity ◽

Ionic Conductors ◽

X Ray Diffraction ◽

X Ray ◽

Solid State Batteries ◽

Ion Conducting ◽

Very High

The sodium-ion conducting family of Na3PnS4, with Pn = P, Sb, have gained interest for the use in solid-state batteries due to their high ionic conductivity. However, significant improvements to the conductivity have been hampered by the lack of aliovalent dopants that can introduce vacancies into the structure. Inspired by the need for vacancy introduction into Na3PnS4, the solid solutions with WS42- introduction are explored. The influence of the substitution with WS42- for PS43- and SbS43-, respectively, is monitored using a combination of X-ray diffraction, Raman and impedance spectroscopy. With increasing vacancy concentration improvements resulting in a very high ionic conductivity of 13 ± 3 mS·cm-1 for Na2.9P0.9W0.1S4 and 41 ± 8 mS·cm-1 for Na2.9Sb0.9W0.1S4 can be observed. This work acts as a stepping-stone towards further engineering of ionic conductors using vacancy-injection via aliovalent substituents.

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Defect-Mediated Conductivity Enhancements in Na3-xPn1-xWxS4 (Pn = P, Sb) using Aliovalent Substitutions

10.26434/chemrxiv.9943961.v1 ◽

2019 ◽

Author(s):

Till Fuchs ◽

Sean Culver ◽

Paul Till ◽

Wolfgang Zeier

Keyword(s):

Ionic Conductivity ◽

Vacancy Concentration ◽

Sodium Ion ◽

High Ionic Conductivity ◽

Ionic Conductors ◽

X Ray Diffraction ◽

X Ray ◽

Solid State Batteries ◽

Ion Conducting ◽

Very High

The sodium-ion conducting family of Na3PnS4, with Pn = P, Sb, have gained interest for the use in solid-state batteries due to their high ionic conductivity. However, significant improvements to the conductivity have been hampered by the lack of aliovalent dopants that can introduce vacancies into the structure. Inspired by the need for vacancy introduction into Na3PnS4, the solid solutions with WS42- introduction are explored. The influence of the substitution with WS42- for PS43- and SbS43-, respectively, is monitored using a combination of X-ray diffraction, Raman and impedance spectroscopy. With increasing vacancy concentration improvements resulting in a very high ionic conductivity of 13 ± 3 mS·cm-1 for Na2.9P0.9W0.1S4 and 41 ± 8 mS·cm-1 for Na2.9Sb0.9W0.1S4 can be observed. This work acts as a stepping-stone towards further engineering of ionic conductors using vacancy-injection via aliovalent substituents.

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