Electrode With Enhanced Safety and Electrochemical Device Having the Same
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United States of America Patent
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Issued Date -
Dec 18, 2008
app pub date -
Dec 6, 2006
filing date -
Dec 6, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Disclosed is an electrode having a current collector coated with an electrode active material, wherein non-coated regions of the electrode and boundary regions of intermittently pattern-coated electrodes are coated with a porous active layer including a mixture of inorganic particles and a binder polymer. The electrode of the present invention may be useful to improve safety of a battery and also minimize reduction in the capacity of a battery by introducing the porous active layer onto non-coated regions of the electrode and/or boundary regions of the intermittently pattern-coated electrodes to prevent internal short circuit caused by the contact between both electrodes, wherein the boundary regions are coated with the electrode active material but vulnerable to the electrical short circuit.
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