公开(公告)号：US20240304963A1

公开(公告)日：2024-09-12

申请号：US18269093

申请日：2021-12-23

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Pingfan Wu ,  Jose Maria Benito ,  Stephane Raymond Jacques Blanchot ,  Jean Louis Silvestre ,  Junkang Jacob Liu ,  Siwei Leng ,  Maria Jose Sanchez ,  David Bernard Andre Descoins

IPC: H01M50/588 ,  H01M50/209 ,  H01M50/293 ,  H01M50/505

CPC classification number: H01M50/588 ,  H01M50/209 ,  H01M50/293 ,  H01M50/505

Abstract: Provided is a battery assembly that includes a housing, one or more battery cells electrically coupled to a busbar, the one or more battery cells and busbar being received in the housing. A non-woven core layer is disposed between the busbar and housing, the non-woven core layer comprising a plurality of fibers, the plurality of fibers includes a plurality of oxidized polyacrylonitrile fibers and a coating disposed thereon that binds the plurality of oxidized polyacrylonitrile fibers to each other. Advantageously, the provided assemblies can exhibit extremely high electrical resistance, thermal resistance, and very high dielectric breakdown voltage.

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.