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  • White Paper

Safeguarding Lithium-Ion Battery Cell Separators

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This UL white paper discusses the importance of the separator material in lithium-ion battery cells, and the role that a separator material certification can play in reducing battery cell-related safety risks. The paper discusses general concerns regarding battery safety and specific safety concerns related to battery separator materials. The white paper then describes separator component testing under UL 2591, “Outline of Investigation for Battery Separators,” and describes the potential benefits of component certification.

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