Electrolyte for improving life characteristics at high temperature and lithium secondary battery comprising the same
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United States of America Patent
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Jul 6, 2010
Grant Date -
Dec 20, 2007
app pub date -
Jun 20, 2007
filing date -
Jun 20, 2006
priority date (Note) -
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Abstract
Provided is a battery electrolyte comprising an electrolyte salt, an electrolyte solvent and a compound producing chemical reaction products with the exception of water through a chemical reaction with an acid (H.sup.+), and a secondary battery comprising the same. The battery electrolyte according to the present invention can achieve improved high-temperature storage characteristics and the life characteristics of the battery, by using a compound decreasing a concentration of HX (X=F, Cl, Br or I) through a chemical reaction with HX (X=F, Cl, Br or I) which is present in the battery and therefore causes deterioration of the battery performance.
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