Non-aqueous electrolyte solution for lithium secondary battery and lithium secondary battery comprising the same
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United States of America Patent
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Apr 3, 2018
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Dec 8, 2016
filing date -
Dec 8, 2015
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Abstract
The present invention relates to a non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery including the same, and more particularly, to a non-aqueous electrolyte solution for a lithium secondary battery including an ionizable lithium salt, an organic solvent, and an additive, wherein the additive includes 1,3-propane sultone, succinic anhydride, tris(trimethylsilyl)borate, and succinonitrile in a weight ratio of 1:0.5:0.5:0.5 to 1:1:1:1, and a total amount of the additive is in a range of 2.5 wt % to 4 wt % based on a total weight of the non-aqueous electrolyte solution for a lithium secondary battery, and a lithium secondary battery including the same.
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