Gm Global Technolgoy Operations, Inc.

Ethan T Quy

Nicholas R Bratton

Robert J Schoenherr

Faruk Sohag

Seth P Mansfield

John M Barnowsky

Matthew Pernot

Harikrishna Ketha

A battery pack module includes a cooling plate having thermal breaks strategically aligned with respect to adjacent cell chambers to reduce thermal propagation from one cell chamber to an adjacent cell chamber via thermal conductance through the cooling plate.

Battery pack module

A cell temperature measurement system for a battery includes a heat spreader and a temperature sensor. The heat spreader is configured to thermally conduct energy through a substrate from a cell contact to a sensor contact. The temperature sensor is configured to generate a measurement reflective of a cell or another component temperature of the battery. The temperature sensor may generate the temperature measurement according to readings taken with a probe positioned proximate the sensor contact.

Battery cell group conductive temperature measurement system

A battery pack includes battery cells and an interconnect board assembly (ICBA) having a dielectric ICB and parallel busbars. A cell tab protrudes from an edge of the cells and joined to the busbars. A dielectric ICB is connected to the busbars at one distal end of the busbars. The dielectric material of the ICB is overmolded onto another distal end such that the ICB wraps around the busbars to form overmolded ends. The overmolded ends are received within a pocket of a bracket to form direct parallel cooling paths to a heat sink. A method of manufacturing the battery pack includes arranging the busbars in parallel, overmolding dielectric material onto ends of the busbars to form overmolded ends, and attaching the busbars to a plastic ICB formed from the dielectric material. The ICBA is then attached to the bracket and cells.

Battery pack with overmolded busbars providing parallel cooling paths

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Royal Oak, MI, United States of America

Ethan T Quy