Electrolyte and lithium-ion battery containing the same
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United States of America Patent
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Nov 10, 2020
Grant Date -
Nov 30, 2017
app pub date -
May 25, 2017
filing date -
May 25, 2016
priority date (Note) -
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Abstract
The present application relates to the technical field of lithium-ion batteries and, specifically, relates to an electrolyte and a lithium-ion battery containing the electrolyte. The electrolyte of the present application includes a lithium salt, an organic solvent and additives, the additives include a fluorinated ether compound and an ester dimer compound, the ester dimer compound includes carbonate dimers, carboxylate dimers and sultone dimers. The lithium battery adopting the electrolyte of the present application can realize the object of high voltage, of which the highest normal working voltage can be improved to 4.4˜5.0V, and the lithium battery has good cycle performance, such as higher capacity retention rate at charge or discharge and improved service life.
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