Additive for nonaqueous electrolyte, nonaqueous electrolyte, and electricity storage device
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United States of America Patent
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Aug 14, 2018
Grant Date -
Jul 17, 2014
app pub date -
Jul 6, 2012
filing date -
Jul 7, 2011
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Abstract
The present invention aims to provide an additive for a non-aqueous electrolyte solution with excellent storage stability capable of forming a stable SEI on the surface of an electrode to improve cell performance such as a cycle performance, a discharge/charge capacity, and internal resistance, when the additive is used for electrical storage devices such as non-aqueous electrolyte solution secondary cells and electric double layer capacitors. The present invention also aims to provide a non-aqueous electrolyte solution containing the additive for a non-aqueous electrolyte solution and to provide an electrical storage device using the non-aqueous electrolyte solution. The present invention is an additive for a non-aqueous electrolyte solution, comprising a compound that has a structure represented by the formula (1-1) or (1-2):
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