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Liquid electrolytes

From ionic liquids to liquid electrolytes

Versatile solutions for batteries and supercapacitors

The electrochemical stability and conductivity properties of ionic liquids make them suitable for the development of electrolytes for use in batteries and supercapacitors. Their non-volatile, non-flammable properties ensure that they meet today’s safety constraints a opposed to organic solvents.

These electrolytes are liquid over a wide temperature range, and they combine the safety advantages of solid electrolytes with the performance advantages of liquid electrolytes, offering an optimum contact surface between the electrodes and the electrolyte. The enhanced energy density and safety resulting from this technology opens up new horizons.

Our electrolytes are entirely ionic. Formulated without any organic solvents, they retain their liquid state over the entire possible operating temperature range of a Li-ion battery. Their negligible vapor pressure means they remain inherently non-flammable (flash point > 200°C). The absence of organic solvents gives them an electrochemical stability unmatched by state-of-the-art liquid electrolytes, and ensures better preservation of components throughout their use.

Our electrolytes cover ranges of potential unattainable with state-of-the-art electrolytes made from carbonate solvents. An array of high-potential Li-ion batteries such as those using LNMO (cobalt-free) electrodes is now possible.

These characteristics translate into Li-ion batteries with a higher energy density and enhanced safety.

As part of our commitment to continuous improvement, Solvionic invests in a number of projects that are often valorized by the filing of patents. Discover here, in chronological order, our latest results.


As part of our commitment to continuous improvement, Solvionic invests in a number of projects that are often valorized by the filing of patents. Discover here, in chronological order, our latest results.



GIGAGREEN proposes a structured research plan to develop and scale up novel electrode and cell component manufacturing processes that follow
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Projet R&D HYDRA


Hybrid power-energy electrodes for next generation lithium-ion batteries Personal electronic devices, electric vehicles… The lithium-ion (Li-ion) battery is a technology
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EMPHASIS, a European research project, aims to pave the way for the design of storage systems adapted to energy production
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The European GREENCAP project will develop a non-RCM (critical conduction mode) technology to produce high-performance, long-lasting supercapacitors using 2D layered
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The Future Battery Industries Cooperative Research Centre fosters the growth of the battery industries to power Australia's future. We bring
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Projet R&D Signe


The SiGNE Project will deliver an advanced lithium-ion battery (LIB) aimed at the High-Capacity Approach targeted in this work program.
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méthode de préparation d'une électrode pour batterie à base de liquide ionique

Electrode for ionic-liquid batteries

Method for preparing an electrode with high load per unit of mass filled with electrolyte for a battery with high
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AXELERA is the Chemistry-Environment competitiveness cluster based in Auvergne-Rhône-Alpes. It brings together, in France and internationally, the players involved in
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Soteria is a consortium of major players in battery technology. With over 70 patents already registered, the union aims to
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Projet R&D BATT4EU


BATT4EU is a Co-programmed Partnership established under Horizon Europe, the Framework Programme for Research and Innovation of the European Union.
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Projet R&D COBRA


Cobalt is an essential component in the production of the main types of lithium-ion (Li-ion) batteries, such as the rechargeable
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Projet R&D UncorrelaTEd


Solid-liquid thermoelectric systems with uncorrelated properties.​ Thermoelectricity, which can be used to recover energy from waste heat, is a niche
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Projet R&D SeNSE


Lithium-ion battery with silicon anode, nickel-rich cathode and in-cell sensor for electric vehicles Lithium-ion batteries are the energy source of
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The ALION (High Specific Energy Aluminium-ion rechargable decentralised electricity generation sources) project focuses on the development of Al-ion battery technology
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High energy lithium sulphur cells and batteries ALISE (Advance Lithium Sulphur Batteries for Hybrid Electric Vehicle) focuses on the development
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Illustration du procédé de fabrication d'électrode pour supercondensateur à base de liquide ionique

Method and apparatus for making electrodes for an ionic liquid-based supercapacitor

Process and device for manufacturing electrodes for a supercapacitor based on ionic liquid A method for making an electrode for
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Projet R&D Si-DRIVE


Silicon alloying anodes for high energy density batteries comprising lithium rich cathodes and safe ionic liquid-based electrolytes for enhanced high
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Projet R&D magenta


MAGENTA offers a completely new technological approach to research into thermoelectric materials for waste heat recovery applications.
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Projet R&D HELIS


High energy lithium sulphur cells and batteries “HELIS (High energy lithium sulphur cells and batteries) focuses on the development Lithium-Sulphur
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Projet R&D Seventh Framework Programme

Seventh Framework Program (FP7)

Interfaces of Fluid Electrodes: New Conceptual Explorations The Influence project aims to improve the fundamental understanding and control of the
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Our range of ionic liquids including electrolytes can be ordered online from Solvionic website.