公开(公告)号：JPS5354750A

公开(公告)日：1978-05-18

申请号：JP9773177

申请日：1977-08-15

Applicant: ESB INC

Inventor： AIZATSUKU AI REBUI

IPC: H01M2/06 ,  H01M2/04 ,  H01M2/08 ,  H01M2/12 ,  H01M6/08 ,  H01M6/16

Abstract: 1524669 Pressure relief devices for batteries ESB Inc 8 July 1977 [26 Oct 1976] 28795/77 Heading H1B A plastics cover 20 for a cell has a hole 34 for release of gases closed by a plug 36, which is ejected at a predetermined pressure. The plastics is of low characteristic creep (polysulphone, nylon, polyphenylene oxide, polypropylene) such that the pressure on the plug remains constant.