Flame retardant sheet

JP1715889SActive Publication Date: 2025-06-02SHIN ETSU POLYMER CO LTD
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Patent Information

Application Number
JP2021018855D
Authority / Receiving Office
JP · JP
Patent Type
Designs
Current Assignee / Owner
Filing Date
2021-08-27
Publication Date
2025-06-02
Estimated Expiration
2046-08-27

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Abstract

This article is a sheet that is used by being sandwiched between battery cells that are arranged in parallel inside a battery, and is a fire spread prevention sheet that prevents heat from an overheated battery cell from conducting to an adjacent battery and causing a fire to spread. This article has a form in which 12 rubber cylinders are arranged and fixed side by side on one side of a rectangular rubber sheet in a plan view. The rubber sheet and the cylinders are rubber molded bodies in which a carbon filler is dispersed as a flame retardant in the rubber. When in use, this article is compressed and deformed and sandwiched with the length direction of the cylinder oriented in the height direction of the battery cell between the battery cells.
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