公开(公告)号：US11916251B1

公开(公告)日：2024-02-27

申请号：US17882726

申请日：2022-08-08

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Benjamin G. Wroblewski ,  Jordan Mullins ,  Brian Carrier

IPC: H01M50/375 ,  H01M50/258 ,  H01M10/48 ,  H01M10/63 ,  H01M10/6563 ,  H01M10/613

CPC classification number: H01M50/375 ,  H01M10/486 ,  H01M10/613 ,  H01M10/63 ,  H01M10/6563 ,  H01M50/258 ,  H01M2220/20

Abstract: A multi-cell rechargeable energy storage system (RESS) includes a plurality of battery cells organized into battery modules and a first enclosure configured to house the battery modules. The RESS also includes a first vent arranged on the first enclosure and configured to direct air from inside the first enclosure to an environment external to the first enclosure. The RESS additionally includes a second vent arranged on the first enclosure and configured to direct air into the first enclosure from the environment external to the first enclosure. The RESS further includes a phase-change material (PCM) device arranged on the second vent and configured to melt in response to at least one of the battery modules experiencing a thermal runaway event. In combination with the first vent, the PCM generates crossflow ventilation through the first enclosure to cool the battery modules therein and mitigate thermal runaway.

公开(公告)号：US20240047818A1

公开(公告)日：2024-02-08

申请号：US17882726

申请日：2022-08-08

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Benjamin G. Wroblewski ,  Jordan Mullins ,  Brian Carrier

IPC: H01M50/375 ,  H01M50/258 ,  H01M10/48 ,  H01M10/613 ,  H01M10/63 ,  H01M10/6563

CPC classification number: H01M50/375 ,  H01M50/258 ,  H01M10/486 ,  H01M10/613 ,  H01M10/63 ,  H01M10/6563 ,  H01M2220/20

Abstract: A multi-cell rechargeable energy storage system (RESS) includes a plurality of battery cells organized into battery modules and a first enclosure configured to house the battery modules. The RESS also includes a first vent arranged on the first enclosure and configured to direct air from inside the first enclosure to an environment external to the first enclosure. The RESS additionally includes a second vent arranged on the first enclosure and configured to direct air into the first enclosure from the environment external to the first enclosure. The RESS further includes a phase-change material (PCM) device arranged on the second vent and configured to melt in response to at least one of the battery modules experiencing a thermal runaway event. In combination with the first vent, the PCM generates crossflow ventilation through the first enclosure to cool the battery modules therein and mitigate thermal runaway.