公开(公告)号：US20170117520A1

公开(公告)日：2017-04-27

申请号：US15399435

申请日：2017-01-05

Applicant: SANYO ELECTRIC CO., LTD.

Inventor： Tomohiko YOKOYAMA ,  Shunsuke YASUI ,  Keisuke NAITO

IPC: H01M2/10

CPC classification number: H01M2/1083 ,  H01M2/1077 ,  H01M2/1211 ,  H01M2/1235 ,  H01M2220/20

Abstract: Battery pack includes battery module, metallic installation substrate, metallic attachment member disposed between battery module and installation substrate, metallic fastening part, and insulating member for electrically insulating fastening part and attachment member, and attachment member and installation substrate, from each other, respectively. Insulating member includes annular insulating part having an inner-diameter hole allowing passing through of a male screw shaft portion of fastening part, and electrically insulating between attachment member and an entire surface of an outer periphery of the male screw shaft portion of the fastening part, and between attachment member and an entire surface of an outer periphery of the larger-diameter portion of fastening part; and plate-like insulating part having a corresponding inner-diameter hole which corresponds to the inner-diameter hole of annular insulating part and allows passing through of the male screw shaft portion of fastening part, and electrically insulating between attachment member and installation substrate.

公开(公告)号：US20180053924A1

公开(公告)日：2018-02-22

申请号：US15795875

申请日：2017-10-27

Applicant: SANYO ELECTRIC CO., LTD.

Inventor： Keisuke SHIMIZU ,  Masato FUJIKAWA ,  Tomohiko YOKOYAMA ,  Kyosuke MIYATA ,  Koki INOUE

IPC: H01M2/12 ,  H01M2/16 ,  H01M2/04

CPC classification number: H01M2/1241 ,  H01M2/022 ,  H01M2/0408 ,  H01M2/0413 ,  H01M2/046 ,  H01M2/0478 ,  H01M2/1229 ,  H01M2/1264 ,  H01M2/127 ,  H01M2/1282 ,  H01M2/1294 ,  H01M2/1673 ,  H01M2002/0297 ,  H01M2200/10 ,  H01M2200/20

Abstract: The battery is sealed by a sealing member including a safety valve for exhausting the gas generated in the battery to the outside of the battery when the pressure in the battery is increased. A part of the sealing member is formed of a member having a melting point lower than that of high-temperature gas generated in the abnormal time and having a ratio of an area of an opening of the battery case to an area of a gas exhaust hole is 3.0×10−5 or more and 9.1×10−3 or less.