公开(公告)号：US20230070732A1

公开(公告)日：2023-03-09

申请号：US17815654

申请日：2022-07-28

申请人： UCHIYAMA MANUFACTURING CORP.

发明人： Otone ESUMI ,  Chihiro OHMORI ,  Yuji YASUFUKU ,  Takami KAWABATA

IPC分类号： H01M50/193 ,  H01M50/198

摘要： A storage battery sealing member includes a vulcanized rubber composition; the rubber composition contains a silicone rubber and a vulcanizing agent; a hardness Ha of the sealing member at 23° C. and a relative humidity of 50%, is 90 points or less; a compression set of the sealing member, measured after 25% compression followed by aging at 150° C. for 70 hours, is 80% or less; a difference between the hardness Ha of the sealing member at 23° C. and the relative humidity of 50% and a hardness Hb of the sealing member at 23° C. and the relative humidity of 50% after heated at 400° C. for 10 minutes is within 15 points; and a mass of a residue after heating the sealing member at 800° C. for 5 minutes, relative to the sealing member before heating, is 70 to 100% by mass.