STRUCTURAL ELEMENT WITH INTEGRATED COOLING

The integration of coolant channels and heating elements within structural elements addresses temperature management in RESS, ensuring efficient heat dissipation and supply, thereby improving the performance and safety of battery systems in vehicles.

DE102025104879A1Pending Publication Date: 2026-06-18GM GLOBAL TECHNOLOGY OPERATIONS LLC
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-02-11
Publication Date
2026-06-18

AI Technical Summary

Technical Problem

Existing rechargeable energy storage systems (RESS) face challenges in effectively managing temperature fluctuations of battery cells, which can impact performance and safety, particularly in vehicles where heat dissipation and heating during cold starts are critical.

Method used

Integration of coolant channels within structural elements that reinforce the vehicle frame, combined with heating elements, to regulate temperature by circulating coolant and supplying thermal energy as needed, using nichrome resistance wires and various manufacturing methods for channel construction.

Benefits of technology

Effectively maintains optimal temperature conditions for battery cells, enhancing performance and safety by managing heat dissipation and supply, thus improving the operational reliability of RESS in vehicles.

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Abstract

A motor vehicle comprises a body structure with a frame featuring parallel frame rails. The motor vehicle also includes a powertrain, supported by the frame and configured to generate torque, and a multi-cell rechargeable energy storage system (RESS) with a plurality of battery cells configured to supply electrical energy to the powertrain. The motor vehicle further includes a structural element positioned perpendicular to and attached to each of the parallel frame rails, thereby reinforcing the frame. The structural element is located near the RESS. At least one coolant channel is located within the structural element and configured to circulate coolant to maintain the temperature of the plurality of battery cells.
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Citation Information

Patent Citations

  • Thermal battery management system including thermal boundary layer material with integrated heating element

    DE102015110747A1

  • BATTERY HOUSING FOR ELECTRIC VEHICLES

    DE102023120831A1

  • Three-sided cooling of a battery pack with dual-function cooling plates

    DE102023126282A1

  • Battery system with heat exchanger

    EP2351119B1