Gm Global Technolgoy Operations, Inc.

M Saif Siddiqui

Chih-Hung Yen

Pablo Valencia, Jr

Peter P Andruskiewicz, Iv

Wei Liu

David R Clark

Michael A Celotto

John J Lee

Kristopher A Thor

Majdi F Fakhoury

A battery pack is disclosed and includes battery cells, an outer housing, a support structure, and a planar structure. The outer housing is configured to enclose and immerse the plurality of battery cells in a coolant. The outer housing includes multiple walls including side walls, a top wall and a bottom wall. The support structure supports the battery cells. The support structure includes dividing members separating the battery cells. The planar structure is disposed above or below the battery cells. A gap exists between a planar surface of the planar structure and a planar surface of one of the top wall and the bottom wall of the outer housing for flowing the coolant between the planar structure and the one of the top wall and the bottom wall. The planar structure and at least some of the walls direct the coolant to flow across and between the battery cells.

Immersion cooling systems directing coolant flow between battery cells and cooling components internal and external to battery packs

System and methods for estimating a state if a fuse are presented. In some embodiments, the disclosed systems and methods may be utilized in connection with estimating a state of a fuse associated with a manual service disconnect associated with an energy storage system included in a vehicle. Consistent with embodiments disclosed herein, a current event counting-based method utilizing one or more weighted time data buckets associated with various current levels may be used in connection with estimating MSD fuse life. In some embodiments, a MSD fuse end-of-service life signal may be triggered when a total time associated in the weighted time data buckets exceed a threshold value.

Manual service disconnect fuse state determination systems and methods

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Troy, MI, United States of America

M Saif Siddiqui