Separator for electrochemical device and electrochemical device including the same

JP2025506854AActive Publication Date: 2025-03-13LG ENERGY SOLUTION LTD
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Patent Information

Application Number
JP2024550663
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-10-16
Filing Date
2023-10-17
Publication Date
2025-03-13
Estimated Expiration
2043-10-17
Patent Text Reader

Abstract

The present invention relates to a separator for an electrochemical device containing a lithium manganese-based active material, comprising: a porous polymer substrate; and a porous coating layer laminated on at least one surface of the porous polymer substrate, the porous coating layer comprising inorganic particles and a polymer binder, the inorganic particles being formed by introducing sulfonic acid groups onto the surfaces of a metal oxide or metal hydroxide, and at least a portion of the sulfonic acid groups have hydrogen cations substituted with lithium cations.
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Citation Information

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