Gm Global Technolgoy Operations, Inc.

William Yu Chen

Chih-Hung Yen

Goro Tamai

Taeyoung Han

Bahram Khalighi

Ryan P Hickey

Matthew Swift

Anil Kumar Sachdev

Li Yang

Andrew Clay Bobel

Ran Wu

Yunshan Liu

Pooja Suresh

Patrick H Clark

Jermain E Onye

Kuo Sun

Stephane Watts

Frederic Albergucci

Chao Hu

An immersion cooling system for a battery system includes a battery enclosure and C metal-encased, pouch-type battery cells including C metal cases, C pouch-type battery cells arranged in the C metal cases, respectively, where C is an integer greater than one, and C vents on the C metal cases, respectively. A vent gas manifold is in fluid communication with the C vents of the C metal cases and is configured to remove vent gas passing through the C vents of the C metal cases from the battery enclosure.

Immersion cooling system including metal-encased, pouch-type battery cells for hot gas flow separation in battery systems of electric vehicles

Presented are thermal management systems using coolant flow distribution plates for immersion cooling of battery cells, methods for making/using such systems, and vehicles equipped with such systems for cooling the vehicles' battery packs. A battery assembly includes multiple battery cells arranged in adjacent, mutually parallel cell rows. The battery cells are stored inside a protective battery housing that includes inlet and outlet fluid ports for receiving and evacuating therethrough dielectric coolant fluid. A pair of (first and second) separator plates is located between each neighboring pair of cell rows. Each plate includes coolant channels that are arranged in mutually parallel channel bands. The separator plates are in face-to-face contact with each other such that each channel band of the first separator plate is aligned with a respective channel band of the second plate so the coolant channels cooperatively distribute coolant fluid onto and vertically upward between the battery cells.

Stacked separator plates with coolant flow distribution channels for liquid immersion cooling in battery assemblies

An immersion cooling system for a battery system includes a battery enclosure and G battery cell groups arranged in the battery enclosure. Each of the G battery cell groups include C battery cells, where G and C are integers greater than one. A plurality of dividers are arranged between each of the G battery cell groups. A gas manifold removes vent gases from each of the G battery cell groups.

Immersion cooling system for battery systems of electric vehicles

A battery cell pack has a plurality of battery cells that are assembled into a prismatic frame, with deformable separators interposed to accommodate elastic and plastic deformation caused by cyclic and acyclic expansion and contraction thereof during charging and discharging over the life of the battery cell pack. The battery cells are arranged in a horizontal stack within the prismatic frame, and the deformable separators are interposed between subsets of the battery cells. The deformable separators exert compressive force on the subsets of the battery cells along a longitudinal axis that is defined by the horizontal stack. The compressive force exerted by the deformable separators is at least a minimum force over a service life of the battery cell pack.

Battery cell pack

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Troy, MI, United States of America

William Yu Chen