Separator for secondary batteries, method for manufacturing the same, and lithium secondary battery including the separator

JP7880335B2Active Publication Date: 2026-06-25SK IE TECH CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
SK IE TECH CO LTD
Filing Date
2021-12-10
Publication Date
2026-06-25

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Abstract

The present invention relates to a method for manufacturing a separator for a secondary battery and a lithium secondary battery including the same. Specifically, the present invention relates to a separator for a lithium secondary battery having significantly improved excellent heat resistance, excellent adhesive strength, excellent breathability, and excellent high-temperature shrinkage characteristics, which has an inorganic particle layer formed on one or both sides of a porous substrate layer, the inorganic particle layer being made from a slurry containing inorganic particles and a hydrolysis condensate of a silane-based compound with suppressed condensation, which has excellent bonding strength between organic and inorganic substances, and a lithium secondary battery including the same.
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Citation Information

Patent Citations

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  • Composition for use of porous heat-resistant layers of separator, separator comprising the layers, and battery using the separator

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  • Separator for secondary battery and secondary battery including the same

    US20160149184A1

  • Slurry for secondary battery porous membranes, secondary battery porous membrane, secondary battery electrode, secondary battery separator, secondary battery, and method for producing secondary battery porous membrane

    WO2012073996A1