Nonaqueous electrolyte and nonaqueous secondary battery
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United States of America Patent
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Jun 23, 2020
Grant Date -
Mar 1, 2018
app pub date -
Mar 30, 2016
filing date -
Mar 31, 2015
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Abstract
The purpose of the present invention is to provide a nonaqueous electrolyte that contains acetonitrile having excellent balance between viscosity and the dielectric constant and a fluorine-containing inorganic lithium salt, wherein the generation of complex cations comprising a transition metal and acetonitrile is suppressed, excellent load characteristics are exhibited, and self-discharge during high-temperature storage is suppressed; a further purpose of the present invention is to provide a nonaqueous secondary battery. The present invention relates to a nonaqueous electrolyte which contains: a nonaqueous solvent comprising 30 to 100 vol % of acetonitrile; a fluorine-containing inorganic lithium salt; and a specific nitrogenous cyclic compound typified by pyridine.
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