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Compositions liquides à base de liquides ioniques pour la protection de pièces en lithium métal, méthodes de revêtement et de polymérisation associées et système de stockage électrochimique

Liquid compositions based on ionic liquids for the protection of lithium metal parts

Compositions liquides à base de liquides ioniques pour la protection de pièces en lithium métal, méthodes de revêtement et de polymérisation associées et système de stockage électrochimique

An ionic liquid-based composition for protecting lithium metal anodes in a lithium-based electrochemical energy storage systeme, comprising a polymerizable ionic liquid (or ionic liquid monomer), the cation or the anion of which carries at least one polymerizable function, a non-polymerizable ionic liquid, an ionic liquid of the “crosslinker” type, the citation or the anion of which carries at least two polymerizable functions, and a lithium salt.

The ionic liquid-based polymer composition coated as such on the lithium surface, even if it is swelling with liquid electrolyte, protects the lithium against a constant electrolyte consumption and formation of unstable solid-electrolyte interphase (SEI), which is continuously forming on a bare lithium surface. The growing of dendrites is retarded with such ionic liquid-based polumer composition protection.

Solvionic Energy
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