Electrochemical device comprising aliphatic nitrile compound
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United States of America Patent
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Feb 12, 2013
Grant Date -
Sep 22, 2005
app pub date -
Jan 14, 2005
filing date -
Jan 15, 2004
priority date (Note) -
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Abstract
The present invention provides a cathode having a protection layer formed by a complex between the surface of a cathode active material and an aliphatic nitrile compound, as well as an electrochemical device comprising the cathode. Also, the present invention provides an electrochemical device comprising: (1) a cathode having a protection layer formed by a complex between the surface of a cathode active material and an aliphatic nitrile compound; (2) an anode having a passivation layer formed by a compound selected from the group consisting of vinylene carbonate, its derivative and an ether compound; and (3) an electrolyte solution containing a lithium salt and a solvent.
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