Safety battery system with controlled degassing function

CN119318056APending Publication Date: 2025-01-14VOLKSWAGEN AG
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Patent Information

Application Number
CN202380048029.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2022-06-22
Filing Date
2023-06-20
Publication Date
2025-01-14

AI Technical Summary

Technical Problem

It is difficult for existing battery systems to effectively and proactively collect and remove gaseous compounds and electrolyte components in a faulty state, resulting in risks of fire and chain reactions, affecting safety and robustness.

Method used

A safe battery system with exhaust film and soaking elements is designed, and the saturation state of the soaking elements is monitored in combination with sensors or indicators to ensure that hazardous gases and electrolytes are effectively absorbed and removed in the event of a failure and prevent uncontrolled diffusion.

Benefits of technology

The degree of damage during failure is significantly reduced by the suction element, avoiding gas ignition and thermal runaway, reducing the expected replacement requirement of suction element, reducing operating costs, and improving the safety and reliability of the battery system.

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Abstract

The invention relates to a safety battery system (10) for controlled, active degassing. A safety battery system (10) for controlled degassing in the event of aging, leakage or accident has a sorption element (15) for absorbing chemical compounds occurring in degassing and a sensor or indicator (26) for monitoring saturation of the sorption element (15). The invention further relates to the use of a sensor or indicator (26) for monitoring the saturation of a sorption element (15) in a battery system (10), and to the use of a safety battery system (10) according to the invention in battery-driven travelers, household appliances or electrochemical large-scale storage facilities.
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Citation Information

Patent Citations

  • lithium or lithium-ion battery

    DE10157272C2

  • Power storage cells, useful for the application in a power storage of a hybrid- and / or electric vehicle, comprise a safety-frangible membrane and an absorber that is attached to the safety-frangible membrane

    DE102008025422A1

  • Battery cell module for use in electric motor-driven motor car, has battery cells i.e. lithium-ion-cells, with degassing opening, and gas receiving area attached to cells and provided for permanent receiving of gas escaped from cells

    DE102011087198A1

  • Lithium cell with fluorine absorber

    DE102014211043A1

  • Battery system

    DE102019214755A1