Analysis of Cationic Structure in Some Room Temperature Molten Fluorides and Dependence of Their Ionic Conductivity and Viscosity on HF-Concentration

2019 ◽  
Vol 33 (7) ◽  
pp. 627-639
Author(s):  
Akimasa Tasaka ◽  
Takaaki Nakai ◽  
Hidemi Inoue ◽  
Kenta Nakanishi ◽  
Tomohiro Isogai ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Room Temperature ◽  
Molten Fluorides

Analysis of Cationic Structure in Some Room-Temperature Molten Fluorides and Dependence of Their Ionic Conductivity and Viscosity on Hydrofluoric Acid Concentration

2011 ◽  
Vol 115 (31) ◽  
pp. 9593-9603 ◽  
Author(s):  
Tomohiro Isogai ◽  
Takaaki Nakai ◽  
Hidemi Inoue ◽  
Kenta Nakanishi ◽  
Shinji Kohara ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Acid Concentration ◽  
Hydrofluoric Acid ◽  
Room Temperature ◽  
Molten Fluorides

Enhanced room temperature ionic conductivity of the LiBH4·1/2NH3–Al2O3 composite

2021 ◽  
Author(s):  
Ruixue Zhang ◽  
Wanying Zhao ◽  
Zhenzhen Liu ◽  
Shanghai Wei ◽  
Yigang Yan ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Room Temperature ◽  
Ion Conductivity ◽  
Al2o3 Composite

In situ formed amorphous LiBH4·1/2NH3 on the surface of Al2O3 nanoparticles results in an enhanced ion conductivity of 1.1 × 10−3 S cm−1 at room temperature.

scholarly journals Anion ordering enables fast H− conduction at low temperatures

2021 ◽  
Vol 7 (23) ◽  
pp. eabf7883
Author(s):  
Hiroki Ubukata ◽  
Fumitaka Takeiri ◽  
Kazuki Shitara ◽  
Cédric Tassel ◽  
Takashi Saito ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Room Temperature ◽  
Structural Transition ◽  
Hexagonal Lattice ◽  
Ionic Conductors ◽  
Activation Barriers ◽  
Energy Devices ◽  
Energy Applications ◽  
Chemical Disorder ◽  
New Energy

The introduction of chemical disorder by substitutional chemistry into ionic conductors is the most commonly used strategy to stabilize high-symmetric phases while maintaining ionic conductivity at lower temperatures. In recent years, hydride materials have received much attention owing to their potential for new energy applications, but there remains room for development in ionic conductivity below 300°C. Here, we show that layered anion-ordered Ba2−δH3−2δX (X = Cl, Br, and I) exhibit a remarkable conductivity, reaching 1 mS cm−1 at 200°C, with low activation barriers allowing H− conduction even at room temperature. In contrast to structurally related BaH2 (i.e., Ba2H4), the layered anion order in Ba2−δH3−2δX, along with Schottky defects, likely suppresses a structural transition, rather than the traditional chemical disorder, while retaining a highly symmetric hexagonal lattice. This discovery could open a new direction in electrochemical use of hydrogen in synthetic processes and energy devices.

Multi-variable Bayesian optimization for a new composition with high Na+ conductivity in the Na3PS4 family

2022 ◽  
Author(s):  
Jung Yong Seo ◽  
Sunggeun Shim ◽  
Jin-Woong Lee ◽  
Byung Do Lee ◽  
Sangwon Park ◽  
...  
Keyword(s):  
Solid State ◽  
Ionic Conductivity ◽  
Room Temperature ◽  
High Ionic Conductivity ◽  
Bayesian Optimization ◽  
Solid State Electrolyte ◽  
Aliovalent Substitution

Na3PS4 is an archetypal room-temperature (RT), Na+-conducting, solid-state electrolyte. Various compositional modifications of this compound via iso/aliovalent substitution are known to provide a high ionic conductivity (ion) that is comparable...

Enhanced Room-Temperature Ionic Conductivity of NaCB11H12 via High-Energy Mechanical Milling

2021 ◽  
Author(s):  
Fabrizio Murgia ◽  
Matteo Brighi ◽  
Laura Piveteau ◽  
Claudia E. Avalos ◽  
Valerio Gulino ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Mechanical Milling ◽  
Room Temperature ◽  
High Energy

scholarly journals Contribution Succinonitrile additive for Performa LiTFSi Solid Polymer Electrolytes for Li-Ion Battery

2020 ◽  
Vol 20 (2) ◽  
Author(s):  
Qolby Sabrina ◽  
Titik Lestariningsih ◽  
Christin Rina Ratri ◽  
Achmad Subhan
Keyword(s):  
Ionic Conductivity ◽  
Polymer Electrolytes ◽  
Room Temperature ◽  
Lithium Salt ◽  
Ionic Conduction ◽  
Lithium Ion ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Half Cell ◽  
Li Ion

Solid polymer electrolyte (SPE) appropriate to solve packaging leakage and expansion volume in lithium-ion battery systems. Evaluation of electrochemical performance of SPE consisted of mixture lithium salt, solid plasticizer, and polymer precursor with different ratio. Impedance spectroscopy was used to investigate ionic conduction and dielectric response lithium bis(trifluoromethane)sulfony imide (LiTFSI) salt, and additive succinonitrile (SCN) plasticizer. The result showing enhanced high ionic conductivity. In half-cell configurations, wide electrochemical stability window of the SPE has been tested. Have stability window at room temperature, indicating great potential of SPE for application in lithium ion batteries. Additive SCN contribute to forming pores that make it easier for the li ion to move from the anode to the cathode and vice versa for better perform SPE. Pore of SPE has been charaterization with FE-SEM. Additive 5% w.t SCN shows the best ionic conductivity with 4.2 volt wide stability window and pretty much invisible pores.

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