Fire prevention or fire extinguishing in an electrochemical energy storage system
AssigneeKey Safety Systems, Inc.
InventorsMartin Specht, Klaus Meiler
Life of this patent
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Abstract
A device for preventing or extinguishing a fire in an electrochemical energy storage system comprising storage cells arranged in a storage housing, in particular lithium-ion cells, wherein a composition of expandable volume, containing a chemical compound for preventing or extinguishing a fire, is disposed with limited volume in one or a plurality of hollow spaces in or on the storage housing, and expansion of the volume of the composition can be activated by sensors.
Claims23
A device for preventing or extinguishing a fire in an electrochemical energy storage system comprising storage cells arranged in a storage housing wherein
- a composition of expandable volume, containing an extinguishing agent for preventing or extinguishing a fire, is disposed with limited volume in one or more containers, which are disposed in one or a plurality of hollow spaces in or on the storage housing, wherein expansion of the volume of the composition can be activated by an electrical signal by a sensor, and wherein the extinguishing agent for preventing or extinguishing a fire includes a chemical compound which reacts with radicals released by the fire to form at least one stable compound,
- wherein the expandable composition is an aerosol-forming composition and includes a gas mixture held under pressure in said one or more containers, the gas mixture comprising argon and helium, and wherein
- the gas mixture is kept in a separate container and guided on expansion into a second container in which the extinguishing agent is located.
A device for preventing or extinguishing a fire in an electrochemical energy storage system comprising storage cells arranged in a storage housing wherein a composition of expandable volume, containing an extinguishing agent for preventing or extinguishing a fire, is disposed with limited volume in one or more containers, which are disposed in one or a plurality of hollow spaces in or on the storage housing, wherein expansion of the volume of the composition can be activated by an electrical signal by a sensor,
- wherein the expandable composition is an aerosol-forming composition and includes potassium nitrate and includes a gas mixture held under pressure in said one or more containers, the gas mixture comprising argon and helium, and wherein the gas mixture is kept in a separate container and guided on expansion into a second container in which the extinguishing agent is located.
Dependencies are inferred from the claim text.