ELECTROLYTE FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY COMPRISING THE SAME
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United States of America Patent
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Issued Date -
Dec 4, 2014
app pub date -
May 31, 2013
filing date -
May 31, 2013
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Abandoned
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Abstract
An electrolyte for a lithium ion secondary battery and a lithium ion secondary battery including the same are provide. The electrolyte includes a non-aqueous organic solvent, a lithium salt which is dissolved in the non-aqueous solvent and a additive shown as general formula I. Wherein R1, R2 and R3 are each independently selected from H, alkyl group including from 1 to 12 carbon atoms, cycloalkyl group including from 3 to 8 carbon atoms and aromatic group including 6 to 12 carbon atoms; n represents an integer from 0 to 7. This additive in electrolyte can passivate cathode and anode effectively, restrain their reaction with electrolyte, reduce gases generation and battery's expansion in high temperature surrounding, provide as safety lithium ion secondary batteries.
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