Journal ArticleDOI
"Solvent-in-salt" systems for design of new materials in chemistry, biology and energy research.
Vladimir A. Azov,Ksenia S. Egorova,Marina M. Seitkalieva,Alexey S. Kashin,Valentine P. Ananikov +4 more
TLDR
Inorganic and organic "solvent-in-salt" (SIS) systems have been known for decades but have attracted significant attention only recently and demonstrate remarkable thermal stability and tunability, and present a class of admittedly safer electrolytes, in comparison with traditional organic solvents.Abstract:
Inorganic and organic "solvent-in-salt" (SIS) systems have been known for decades but have attracted significant attention only recently. Molten salt hydrates/solvates have been successfully employed as non-flammable, benign electrolytes in rechargeable lithium-ion batteries leading to a revolution in battery development and design. SIS with organic components (for example, ionic liquids containing small amounts of water) demonstrate remarkable thermal stability and tunability, and present a class of admittedly safer electrolytes, in comparison with traditional organic solvents. Water molecules tend to form nano- and microstructures (droplets and channel networks) in ionic media impacting their heterogeneity. Such microscale domains can be employed as microreactors for chemical and enzymatic synthesis. In this review, we address known SIS systems and discuss their composition, structure, properties and dynamics. Special attention is paid to the current and potential applications of inorganic and organic SIS systems in energy research, chemistry and biochemistry. A separate section of this review is dedicated to experimental methods of SIS investigation, which is crucial for the development of this field.read more
Citations
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Superconcentrated Electrolytes for a High-Voltage Lithium-Ion Battery
TL;DR: In this article, a superconcentrated LiN(SO2F)2/dimethyl carbonate electrolyte was proposed to solve the problem of metal-ion dissolution at high voltages.
Journal ArticleDOI
New Concepts in Electrolytes.
TL;DR: From superconcentrated solvent-in-salt electrolytes to solid-state electrolytes, the current research realm of novel electrolyte systems has grown to unprecedented levels and this review will avoid discussions on current state-of-the-art electrolytes but instead focus exclusively on unconventional electrolytes systems that represent new concepts.
Journal ArticleDOI
Molecular Dynamics Simulations of Ionic Liquids and Electrolytes Using Polarizable Force Fields.
Dmitry Bedrov,Jean-Philip Piquemal,Oleg Borodin,Alexander D. MacKerell,Benoît Roux,Christian Schröder +5 more
TL;DR: This manuscript compares simulations using polarizable and nonpolarizable models for several classes of ionic systems, discussing the underlying physics that each approach includes or ignores, implications for implementation and computational efficiency, and the accuracy of properties predicted by these methods compared to experiments.
Journal ArticleDOI
Safe and high-rate supercapacitors based on an “acetonitrile/water in salt” hybrid electrolyte
Qingyun Dou,Shulai Lei,Dawei Wang,Qingnuan Zhang,Dewei Xiao,Dewei Xiao,Hongwei Guo,Hongwei Guo,Aiping Wang,Hui Yang,Yongle Li,Siqi Shi,Xingbin Yan +12 more
TL;DR: In this article, the authors introduced acetonitrile as a co-solvent to a typical WIS electrolyte to formulate an AWIS hybrid electrolyte that provides significantly improved conductivity, reduced viscosity and an expanded applicable temperature range while maintaining the aforementioned important physicochemical properties of WIS.
References
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