Addition of electrolyte and method for forming a SEI film (solid electrolyte interphase) for lithium-ion batteries. Fluoracetone or its derivatives are added to the propylene carbonate electrolyte in a low concentration. During the first charge / discharge cycle, fluoroacetone decomposes on the grap.....
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The invention describes a fluorinated material which, unlike LiPF6, exhibits higher thermal stability and lower toxicity of the combustion products. As a result, a wider temperature range of use, e.g. for lithium-ion batteries with comparable performance possible.
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"SEI-forming Electrolyte additive 3" describes a substance as an electrolyte additive and a process for forming an SEI (Solid Electrolyte Interphase) film for lithium-ion batteries. According to the invention, the compound 6,6-difluoro-1,2,4-thiadiazinane-3,5-dione 1,1-dioxide is added to the electr.....
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