US 12,463,295 B2
Cylindrical cell-based parametric battery module for flexible assembly and packaging
Chinmaya Patil, South Lyon, MI (US); Venkata Prasad Atluri, Novi, MI (US); and Teresa U. Holiness-Stalling, Detroit, MI (US)
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed by GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed on Aug. 15, 2022, as Appl. No. 17/887,996.
Prior Publication US 2024/0055733 A1, Feb. 15, 2024
Int. Cl. H01M 50/512 (2021.01); H01M 50/213 (2021.01); H01M 50/507 (2021.01); H01M 50/547 (2021.01); H01M 50/553 (2021.01)
CPC H01M 50/512 (2021.01) [H01M 50/213 (2021.01); H01M 50/507 (2021.01); H01M 50/547 (2021.01); H01M 50/553 (2021.01)] 20 Claims
OG exemplary drawing
 
1. A battery module, comprising:
a positive terminal disposed on an exterior of a housing of the battery module;
a negative terminal disposed on the exterior of the housing of the battery module;
groups of two or more cylindrical battery cells electrically connected in parallel;
electrically conductive bus bars that electrically connect the groups in series, that electrically connect positive terminals of the cylindrical battery cells of a first one of the groups with the positive terminal of the battery module, and that electrically connect negative terminals of the cylindrical battery cells of a second one of the groups with the negative terminal of the battery module;
a cooling plate having a first side that faces the groups and a second side opposite the first side that faces away from the groups; and
a thermal runaway protection blanket that is sandwiched directly between (a) the first side of the cooling plate and (b) the groups, the thermal runaway protection blanket including a surface that faces the groups,
wherein the surface of the thermal runaway protection blanket that faces the groups includes recessed portions that directly contact the groups and face vents of the battery cells of the groups.