End cap seal assembly for a lithium cell
    1.
    发明申请
    End cap seal assembly for a lithium cell 审中-公开
    用于锂电池的端盖密封组件

    公开(公告)号:US20080220316A1

    公开(公告)日:2008-09-11

    申请号:US11714373

    申请日:2007-03-06

    IPC分类号: H01M2/12

    摘要: An end cap assembly for a primary lithium cell is disclosed. The end cap has a principal application in closing and sealing a primary lithium cell having wound electrodes. The cell may typically have an anode comprising lithium and a cathode comprising iron disulfide (FeS2). The end cap assembly has a metal cathode contact cup therein having a closed end and opposing open end with integral side walls therebetween. The cathode contact cup is electrically connected to the cathode and is within the electrical pathway between the cathode and terminal end cap. The cathode contact cup has one or more grooves formed at the closed end thereof resulting in thinned or rupturable portions of remaining metal underlying said grooves. The thin or rupturable remaining metal portions are exposed directly to gas within the cell interior and are designed to rupture when gas within the cell builds to a predetermined level.

    摘要翻译: 公开了一种用于初级锂电池的端盖组件。 端盖主要用于闭合和密封具有缠绕电极的一次锂电池。 电池通常可以具有包含锂的阳极和包含二硫化铁(FeS 2 O 2)的阴极。 端盖组件具有金属阴极接触杯,其中具有闭合端和相对的开口端,其间具有整体侧壁。 阴极接触杯电连接到阴极并且在阴极和终端帽之间的电气通路内。 阴极接触杯具有在封闭端形成的一个或多个凹槽,导致所述凹槽下面的剩余金属的变薄或可破裂的部分。 薄或可破裂的剩余金属部分直接暴露在电池内部的气体中,并且被设计成当电池内的气体建立到预定水平时破裂。