ELECTROLYTE FOR LONG CYCLE LIFE SECONDARY BATTERY AND SECONDARY BATTERY CONTAINING THE SAME
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United States of America Patent
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Oct 8, 2015
app pub date -
Mar 26, 2015
filing date -
Apr 2, 2014
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Abstract
Provided are a non-aqueous electrolyte for a secondary battery and a secondary battery including the same. The non-aqueous electrolyte for a secondary battery contains a non-aqueous solvent, a lithium salt, and a 2-thioxo-1,3-dithiole-4,5-dicarboxylate compound as an electrolyte additive, such that a secondary battery using the non-aqueous electrolyte for a secondary battery according to the present invention has an advantage in that room-temperature and high-temperature electrochemical characteristics and cycle life characteristics thereof are improved.
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