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公开(公告)号：EP4212762A1
公开(公告)日：2023-07-19
申请号：EP21866317.7
申请日：2021-06-14
发明人： USHIJIMA, Takeru , YANAGIGUCHI, Tomihiko , AOYAMA, Takahisa , LIU, Jihong , SUKEGAWA, Masamichi , TSUDA, Hayato
IPC分类号： F16J15/10 , H01M50/107 , H01M50/184 , H01M50/19
摘要： A sealing member that is unlikely to break while an end portion thereof is pressure-bonded is provided.
The sealing member is one used for a cylindrical lithium-ion battery, wherein the sealing member is used by being interposed between a bottom-closed cylindrical case and a cap, is made of perfluoropolymer, and has dimensions that meet the following relational expressions:
when an axial distance from a cap upper surface to a leading end portion in a case is defined as HC,
an axial distance from the cap upper surface to a leading end portion in the sealing member is defined as HG,
a thickness of the sealing member is defined as TG,
a value of TG divided by HG is defined as X (=TG/HG), and
a value of HG divided by HC is defined as Y (=HG/HC), X > 0.800 TG − 0.324 Y − 0.778 TG + 1.670 Y > 0.594 X 2 − 1.176 X + 0.913-
公开(公告)号：EP4455475A1
公开(公告)日：2024-10-30
申请号：EP22910814.7
申请日：2022-12-01
摘要： Provided is a crosslinkable composition for use in a member of an air management system for an ammonia combustion engine, the composition containing a fluoroelastomer and a cross-linking agent, and further containing hydrotalcite as an acid acceptor, or containing or not containing an acid acceptor other than hydrotalcite as an acid acceptor, wherein the content of the acid acceptor other than hydrotalcite is 0 parts by mass or more and less than 1 part by mass based on 100 parts by mass of the fluoroelastomer.
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公开(公告)号：EP4290104A1
公开(公告)日：2023-12-13
申请号：EP22749529.8
申请日：2022-01-24
IPC分类号： F16J15/10 , H01M50/183
摘要： Provide is a sealing member that exhibits both the effect of suppressing permeation and leakage of an electrolytic solution and the effect of decreasing the incidence of damage to the sealing member.
A sealing member for a battery including a non-aqueous electrolytic solution; wherein a material constituting the sealing member comprises an elastic material; a compression rate R of the sealing member when attached is 50% or more; and the sealing member satisfies Eb ≥ a × β b , where Eb is an elongation at break of the material constituting the sealing member as measured in accordance with JIS K 6251, β is a cross-sectional aspect ratio, a = 6.919 × R - 2.066, and b = 2.278 × R - 1.767.
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