Immersion cooling system for a battery system
The immersion cooling system addresses heating issues in high-power battery systems by using dielectric fluid and a vent gas distributor to manage vent gases, ensuring safe and efficient operation.
DE102022127458B4Active Publication Date: 2026-06-03GM GLOBAL TECHNOLOGY OPERATIONS LLC
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Filing Date
- 2022-10-19
- Publication Date
- 2026-06-03
AI Technical Summary
Technical Problem
The increasing power density and operating voltage of battery systems in electric vehicles lead to significant heating issues, which can cause wear, failure, and thermal runaway in battery cells, propagating to neighboring cells.
Method used
An immersion cooling system using dielectric fluid and a vent gas distributor to manage and remove vent gases from battery cells, preventing heat propagation and enhancing thermal insulation between adjacent cells.
Benefits of technology
The system provides effective cooling, prevents thermal runaway propagation, and maintains battery life by managing vent gases, allowing for safe DC fast charging.
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Smart Images
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Abstract
Immersion cooling system (300) for a battery system, comprising: a battery housing (113); C metal-encased pouch battery cells (40), including: C metal enclosures (30); C pouch battery cells (40) each arranged in the C metal casings (30), where C is an integer greater than one; and C Ventilation openings (38) on each of the C metal housings (30); and a vent gas distributor (160) which is in fluid communication with the C vent openings (38) of the C metal housings (30) and is configured to remove the vent gas passing through the C vent openings (38) of the C metal housings (30) from the battery housing (113); characterized by the fact that between adjacent metal-encased pouch battery cells (40) several insulating spacers (310) are arranged; and that the vent gas distributor (160) has C vent openings (164) which are each aligned with the C vent openings (38) of the C metal housing (30) when it is installed in the battery housing (113).
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