Daniel Bélanger
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View article: Exploring Binder–Ionic Liquid Electrolyte Systems in Silicon Oxycarbide Negative Electrodes for Lithium-Ion Batteries
Exploring Binder–Ionic Liquid Electrolyte Systems in Silicon Oxycarbide Negative Electrodes for Lithium-Ion Batteries Open
Enhancing the safety of lithium-ion batteries (LIBs) by replacing flammable electrolytes is a key challenge. Ionic liquid (IL)-based electrolytes are considered an interesting alternative due to their thermal and chemical stability, high v…
View article: Continuous medium approach to approximate the high concentrated aqueous electrolyte with different types of electrochemical structure
Continuous medium approach to approximate the high concentrated aqueous electrolyte with different types of electrochemical structure Open
Superconcentrated aqueous electrolytes have recently emerged as a new class of electrolytes, called water-in-salt electrolytes. They are distinguished, in both weight and volume, by a quantity of salt greater than water. Currently, these e…
View article: Hexavalent Ions Insertion in Garnet Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> Toward a Low Temperature Densification Reaction
Hexavalent Ions Insertion in Garnet Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> Toward a Low Temperature Densification Reaction Open
Nowadays, solid electrolytes are considered the main alternative to conventional liquid electrolytes in lithium batteries. The fabrication of these materials is however limited by the strict synthesis conditions, requiring high temperature…
View article: Influence of AlPO<sub>4</sub> Impurity on the Electrochemical Properties of NASICON‐Type Li<sub>1.5</sub>Al<sub>0.5</sub>Ti<sub>1.5</sub>(PO<sub>4</sub>)<sub>3</sub> Solid Electrolyte
Influence of AlPO<sub>4</sub> Impurity on the Electrochemical Properties of NASICON‐Type Li<sub>1.5</sub>Al<sub>0.5</sub>Ti<sub>1.5</sub>(PO<sub>4</sub>)<sub>3</sub> Solid Electrolyte Open
Densification of ceramic electrolytes is a key enabler in producing electrolyte pellets for solid‐state batteries. This requires understanding the correlation between the starting grain size of electrolytes, chemical phase evolution and de…
View article: Metastable properties of a garnet type Li<sub>5</sub>La<sub>3</sub>Bi<sub>2</sub>O<sub>12</sub> solid electrolyte towards low temperature pressure driven densification
Metastable properties of a garnet type Li<sub>5</sub>La<sub>3</sub>Bi<sub>2</sub>O<sub>12</sub> solid electrolyte towards low temperature pressure driven densification Open
Hot-pressing leads to low temperature densification of garnet type Li 5 La 3 Bi 2 O 12 solid electrolyte and density functional theory calculations allow to explore its metastable properties under the formation of impurities.
View article: Protection of LiFePO4 against Moisture
Protection of LiFePO4 against Moisture Open
In this study, a carbon-coated LiFePO4 (LFP/C) powder was chemically grafted with trifluoromethylphenyl groups in order to increase its hydrophobicity and to protect it from moisture. The modification was carried out by the spontaneous red…
View article: Grafting of Quinones on Carbons as Active Electrode Materials in Electrochemical Capacitors
Grafting of Quinones on Carbons as Active Electrode Materials in Electrochemical Capacitors Open
International audience
View article: Grafting of Quinones on Carbons as Active Electrode Materials in Electrochemical Capacitors
Grafting of Quinones on Carbons as Active Electrode Materials in Electrochemical Capacitors Open
The electrochemical performance of electrochemical capacitors can be improved with electroactive quinone molecules. Systems based on redox active electrolyte as well as physisorbed and chemically grafted molecules have been investigated. I…
View article: A Comparison among Viscosity, Density, Conductivity, and Electrochemical Windows of <i>N</i>-<i>n</i>-Butyl-<i>N</i>-methylpyrrolidinium and Triethyl-<i>n</i>-pentylphosphonium Bis(fluorosulfonyl imide) Ionic Liquids and Their Analogues Containing Bis(trifluoromethylsulfonyl) Imide Anion
A Comparison among Viscosity, Density, Conductivity, and Electrochemical Windows of <i>N</i>-<i>n</i>-Butyl-<i>N</i>-methylpyrrolidinium and Triethyl-<i>n</i>-pentylphosphonium Bis(fluorosulfonyl imide) Ionic Liquids and Their Analogues Containing Bis(trifluoromethylsulfonyl) Imide Anion Open
Ionic liquid consists of an organic cation and generally an inorganic anion. The properties of liquids can be modulated by changing the anion or the cation or both. Two ionic liquids derived from the anion [FSI] were synthesized and charac…
View article: Perspective—A Guideline for Reporting Performance Metrics with Electrochemical Capacitors: From Electrode Materials to Full Devices
Perspective—A Guideline for Reporting Performance Metrics with Electrochemical Capacitors: From Electrode Materials to Full Devices Open
International audience
View article: Synthesis and characterization of sulfophenyl-functionalized reduced graphene oxide sheets
Synthesis and characterization of sulfophenyl-functionalized reduced graphene oxide sheets Open
We report modification of graphene oxide by thermal reduction to obtain reduced graphene oxide and subsequent functionalization with sulfophenyl groups to obtain SRGO as well as the characterization of these materials by TGA-MS.
View article: Suitable Conditions for the Use of Vanadium Nitride as an Electrode for Electrochemical Capacitor
Suitable Conditions for the Use of Vanadium Nitride as an Electrode for Electrochemical Capacitor Open
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View article: To Be or Not To Be Pseudocapacitive?
To Be or Not To Be Pseudocapacitive? Open
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View article: Electrochemical Performance of Carbon/MnO<sub>2</sub>Nanocomposites Prepared via Molecular Bridging as Supercapacitor Electrode Materials
Electrochemical Performance of Carbon/MnO<sub>2</sub>Nanocomposites Prepared via Molecular Bridging as Supercapacitor Electrode Materials Open
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View article: Chemical Mapping and Electrochemical Performance of Manganese Dioxide/Activated Carbon Based Composite Electrode for Asymmetric Electrochemical Capacitor
Chemical Mapping and Electrochemical Performance of Manganese Dioxide/Activated Carbon Based Composite Electrode for Asymmetric Electrochemical Capacitor Open
A MnO2@BP nanocomposite was synthesized by simultaneously reduction of KMnO4 with Mn(CH3COO)2.4H2O and highly porous Black Pearls 2000 at room temperature. The specific surface area, porosity, crystalline form and conductivity of MnO2@BP n…
View article: Strategies to Improve the Performance of Carbon/Carbon Capacitors in Salt Aqueous Electrolytes
Strategies to Improve the Performance of Carbon/Carbon Capacitors in Salt Aqueous Electrolytes Open
International audience