公开(公告)号：US20240072345A1

公开(公告)日：2024-02-29

申请号：US18269366

申请日：2021-12-23

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jose Maria Benito ,  Maria Jose Sanchez ,  Stephane Stephan ,  Pingfan Wu ,  Jean Louis Silvestre ,  David Bernard Andre Descoins

IPC: H01M50/202 ,  H01M50/143 ,  H01M50/44 ,  H01M50/494 ,  H01M50/505

CPC classification number: H01M50/202 ,  H01M50/143 ,  H01M50/44 ,  H01M50/494 ,  H01M50/505

Abstract: Provided is a battery assembly that includes an electrically-conductive housing (510A, 510B), one or more battery modules (512) electrically coupled to a busbar (522), the one or more battery modules and busbar being received in the housing. A non-woven core layer (506) is disposed between the busbar and electrically-conductive housing, the non-woven core layer comprising a plurality of fibers, the plurality of fibers comprising 60-100 wt % of oxidized polyacrylonitrile fibers. The non-woven core layer can exhibit a breakdown voltage of at least 0.9 kV at ambient conditions after exposure to 500° C. for 5 minutes.