Nitroso grafted carbonate electrolyte of lithium battery and preparation method
A nitroso, electrolyte technology, applied in the manufacture of electrolyte batteries, secondary batteries, non-aqueous electrolyte batteries, etc., can solve the problems of unsolved dielectric constant and viscosity of electrolyte solvents, improve antioxidant performance, reduce Binding energy, overall viscosity reduction effect
Active Publication Date: 2018-02-16
江苏思派新能源科技有限公司
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Abstract
The invention discloses a nitroso grafted carbonate electrolyte of a lithium battery and a preparation method. By performing mixed treatment on ethylene carbonate and propylene carbonate through nitrite, adding a small amount of fluoroethers and borate as auxiliaries simultaneously, heating at a low temperature (40-50 DEG C) in a water bath and rapidly stirring, and adjusting pH to be weakly alkaline simultaneously, NO2- obtained after nitrite ions are decomposed is additionally reacted with alkyl alkenyl and carbonyl groups of the ethylene carbonate and the propylene carbonate, the antioxidant properties of carbonate are improved by the combined action of the fluoroethers and nitroso groups, meanwhile, the grafting of small molecular groups can reduce the overall viscosity of a liquid, and a part of nitrogen atoms enter a carbon chain in a substitutional manner to cause structural defects and reduce the combined energy of the nitroso groups.
Application Domain
Final product manufactureElectrolyte accumulators manufacture
Technology Topic
Nitrite ionOxidation resistant +13
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