SEPARATOR AND LITHIUM BATTERY INCLUDING THE SAME
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United States of America
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Issued Date -
Mar 20, 2025
app pub date -
Dec 3, 2024
filing date -
Dec 3, 2024
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Abstract
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.
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