公开(公告)号：US20160006004A1

公开(公告)日：2016-01-07

申请号：US14768522

申请日：2014-02-16

Applicant: YODOGAWA HU-TECH CO., LTD.

Inventor： Katsumi OGAWA ,  Isao AWAI ,  Hiroyuki TORII ,  Tomohiro ONO ,  Shin-ichi SAKASHITA ,  Mikimasa KOKADO

IPC: H01M2/08 ,  H01M2/02 ,  H01M10/0525

CPC classification number: H01M2/08 ,  F16J15/106 ,  H01M2/0237 ,  H01M10/0525 ,  H01M10/058 ,  H01M2220/20 ,  Y02E60/122

Abstract: An object is to provide a gasket for a secondary battery having excellent compressive restoration characteristics. A gasket for a secondary battery (particularly for a lithium secondary battery) is a gasket used as an insulation seal of a secondary battery, and is a hot-press and cold-press molded product (particularly, a product which is hot-pressed into a gasket shape under a temperature condition lower than a melting point of a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA) that is used by 0° C. to 80° C. and is thereafter cooled under pressure) obtained by hot-pressing a skived sheet obtained by skiving a block-shaped molded body (particularly, a columnar or cylindrical molded body obtained by injecting a PFA raw material into a heated mold to be pressurized and cooling the material under pressure) made of a PFA to be deformed into a gasket shape and thereafter performing cold-pressing on the resultant to fix a shape thereof.

Abstract translation: 目的在于提供具有优异的压缩恢复特性的二次电池用衬垫。 用于二次电池（特别是锂二次电池）的垫圈是用作二次电池的绝缘密封件的垫圈，是热压和冷压成型品（特别是热压成型的产品 在0℃〜80℃使用的四氟乙烯 - 全氟烷基乙烯基醚共聚物（PFA）的熔点以下的温度条件下进行密封形状，然后在压力下冷却后得到的密封圈形状 通过将块状成形体（特别是通过将PFA原料注入加压的模具中而将其加压并在压力下冷却而得到的柱状或圆筒形成型体）由PFA制成，将其变形为垫片 然后对所得物进行冷压以固定其形状。