Separator for lithium secondary battery, and lithium secondary battery comprising same

Separator for lithium secondary battery, and lithium secondary battery comprising same

The present invention relates to a separator for a lithium secondary battery, and a lithium secondary battery including the same. The separator includes a porous substrate and a coating layer on at least one surface of the porous substrate, wherein the coating layer includes a binder including a (me...

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Hauptverfasser: Kim, Yongkyoung, Choi, Yeonjoo, Kim, Yangseob, Choi, Hyeonsun, Seo, Dongwan, Kim, Gain, Lee, Jungyoon
Format: Patent
Sprache:eng
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BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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creator Kim, Yongkyoung
Choi, Yeonjoo
Kim, Yangseob
Choi, Hyeonsun
Seo, Dongwan
Kim, Gain
Lee, Jungyoon
description The present invention relates to a separator for a lithium secondary battery, and a lithium secondary battery including the same. The separator includes a porous substrate and a coating layer on at least one surface of the porous substrate, wherein the coating layer includes a binder including a (meth)acrylic copolymer including a first structural unit derived from (meth)acrylamide, a second structural unit derived from (meth)acrylonitrile, and a third structural unit derived from (meth)acrylamidosulfonic acid, a (meth)acrylamidosulfonic acid salt or a combination thereof; first inorganic particles; and second inorganic particles, wherein the average diameter of the first inorganic particles is 400 nm to 600 nm, and the average diameter of the second inorganic particles is smaller than the average diameter of the first inorganic particles.
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The separator includes a porous substrate and a coating layer on at least one surface of the porous substrate, wherein the coating layer includes a binder including a (meth)acrylic copolymer including a first structural unit derived from (meth)acrylamide, a second structural unit derived from (meth)acrylonitrile, and a third structural unit derived from (meth)acrylamidosulfonic acid, a (meth)acrylamidosulfonic acid salt or a combination thereof; first inorganic particles; and second inorganic particles, wherein the average diameter of the first inorganic particles is 400 nm to 600 nm, and the average diameter of the second inorganic particles is smaller than the average diameter of the first inorganic particles.</description><language>eng</language><subject>BASIC ELECTRIC ELEMENTS ; ELECTRICITY ; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</subject><creationdate>2024</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20241105&amp;DB=EPODOC&amp;CC=US&amp;NR=12136743B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20241105&amp;DB=EPODOC&amp;CC=US&amp;NR=12136743B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Kim, Yongkyoung</creatorcontrib><creatorcontrib>Choi, Yeonjoo</creatorcontrib><creatorcontrib>Kim, Yangseob</creatorcontrib><creatorcontrib>Choi, Hyeonsun</creatorcontrib><creatorcontrib>Seo, Dongwan</creatorcontrib><creatorcontrib>Kim, Gain</creatorcontrib><creatorcontrib>Lee, Jungyoon</creatorcontrib><title>Separator for lithium secondary battery, and lithium secondary battery comprising same</title><description>The present invention relates to a separator for a lithium secondary battery, and a lithium secondary battery including the same. 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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
title Separator for lithium secondary battery, and lithium secondary battery comprising same
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