Nonaqueous electrolytic solution and nonaqueous electrolyte battery using the same
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United States of America Patent
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Oct 4, 2016
Grant Date -
Jul 21, 2016
app pub date -
Mar 25, 2016
filing date -
Sep 26, 2013
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Abstract
An object of the invention is to provide nonaqueous electrolyte batteries having high initial efficiency, excellent initial capacity and excellent overcharge safety, and nonaqueous electrolytic solutions realizing such batteries. A nonaqueous electrolytic solution includes an electrolyte and a nonaqueous solvent, and further includes an aromatic compound represented by Formula (I) (in which R1 to R5 are independently hydrogen, a halogen, or an unsubstituted or halogen-substituted hydrocarbon group having 1 to 20 carbon atoms, R6 and R7 are independently a hydrocarbon group having 1 to 12 carbon atoms, at least two of R1 to R7 may be bonded together to form a ring, and Formula (I) satisfies at least one of the requirements (A) and (B): (A) at least one of R1 to R5 is a halogen, or an unsubstituted or halogen-substituted hydrocarbon group having 1 to 20 carbon atoms, (B) the total number of carbon atoms in R1 to R7 is 3 to 20). A nonaqueous electrolyte battery includes the nonaqueous electrolytic solution.
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