Nonaqueous electrolyte, capacitor device using same, and carboxylic acid ester compound used in same
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United States of America Patent
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Jul 4, 2023
Grant Date -
Oct 14, 2021
app pub date -
Feb 17, 2021
filing date -
Dec 19, 2013
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Abstract
The present invention provides a nonaqueous electrolytic solution capable of improving electrochemical characteristics in the case of using an energy storage device at a high temperature and at a high voltage and further capable of inhibiting the gas generation while maintaining a capacity retention rate after storage at a high temperature and at a high voltage and also provides an energy storage device using the same. Disclosed is a nonaqueous electrolytic solution having an electrolyte salt dissolved in a nonaqueous solvent, the nonaqueous electrolytic solution containing a carboxylic acid ester compound represented by the following general formula (I).
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