18967511. SEPARATOR AND LITHIUM BATTERY INCLUDING THE SAME (SAMSUNG SDI CO., LTD.)
SEPARATOR AND LITHIUM BATTERY INCLUDING THE SAME
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SEPARATOR AND LITHIUM BATTERY INCLUDING THE SAME
This abstract first appeared for US patent application 18967511 titled 'SEPARATOR AND LITHIUM BATTERY INCLUDING THE SAME
Original Abstract Submitted
This application relates to a separator and a lithium battery employing the same. In one aspect, the separator includes a porous substrate and a coating layer disposed on a surface of the porous substrate. The coating layer includes organic particles, a first binder, and inorganic particles. The organic particles have a first melting point of about 100□C to about 13□C. The first binder has a second melting point higher than the first melting point by about 30□C or more. The organic particles are coated by or embedded in the first binder. The separator can maintain a network structure even at a high temperature, making it possible to improve the high-temperature stability of a lithium battery by employing the separator, as well as delaying a rapid increase in temperature and heat generation when a shutdown occurs.