KR-102963938-B1 - APPARATUS FOR PREVENTING BATTERY FIRE AND METHOD THEREOF

Abstract

A method for preventing a fire in a battery according to one embodiment of the present invention may include: receiving state information of the battery; determining a fire prevention process for releasing carbon dioxide into the battery based on the state information of the battery; and controlling the release of carbon dioxide into the battery through a fire extinguishing device based on the determined fire prevention process.

Inventors

• 박민성

Dates

Publication Date

20260511

Application Date

20241111

Claims (5)

1. Regarding methods to prevent battery fires, The above method is, A step of receiving the status information of the battery above; A step of determining a fire prevention process for releasing carbon dioxide into the battery based on the state information of the battery; and Based on the fire prevention process determined above and/or a user control signal received from a user terminal, the method includes the step of controlling the release of carbon dioxide to the battery through a fire extinguishing device. The above battery status information is, Includes information on battery voltage, temperature, pressure, capacity (SOC), SOH, degree of degradation, battery damage, and fire risk, and The above fire prevention process is, Based on the state information of each of the above batteries, the battery includes information on the predetermined unit-by-unit carbon dioxide emission amount, emission order, emission location, and emission time. It is pre-learned based on the state information of the above battery and external environment information, and It is updated from the server and/or learned internally at regular intervals and updated at regular intervals, and The above external environment information is, It includes information regarding external temperature, humidity, weather, etc. around the battery pack, and The step of determining the above fire prevention process is, A step of determining the fire risk level of the battery to at least one of the predetermined units, namely a normal stage, a concern stage, a danger stage, and a fire stage; The method includes the step of graphically displaying the above-mentioned risk level using graphs, numerical values, and colors; The step of controlling the release of carbon dioxide from the above battery is, If it is determined that a specific battery module has a high fire risk, a step of increasing the carbon dioxide emission amount and emission time for the specific battery module; If it is determined that the fire risk at a specific location within the battery module is high, the step of adjusting the position of the fire extinguishing device so that carbon dioxide is concentratedly discharged to the specific location; and A step of determining a carbon dioxide release sequence diagram according to fire risk for each of the above battery units; Includes more, The battery status information displayed on the above user terminal is composed of information on reusable batteries among the batteries, and The information of the reusable battery includes information regarding the remaining usage, remaining usage time, degree of damage, and fire risk of the reusable battery. Battery fire prevention method.
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5. In a device for preventing battery fire, Memory; and A processor connected to the memory and configured to execute instructions contained in the memory, comprising: The above processor is, Receive the status information of the above battery, and Based on the state information of the above battery, a fire prevention process for releasing carbon dioxide to the battery is determined, and Based on the fire prevention process determined above and/or a user control signal received from a user terminal, control to release carbon dioxide to the battery through a fire extinguishing device, and The above battery status information is, Includes information on battery voltage, temperature, pressure, capacity (SOC), SOH, degree of degradation, battery damage, and fire risk, and The above fire prevention process is, Based on the state information of each of the above batteries, the battery includes information on the predetermined unit-by-unit carbon dioxide emission amount, emission order, emission location, and emission time. It is pre-learned based on the state information of the above battery and external environment information, and It is updated from the server and/or learned internally at regular intervals and updated at regular intervals, and The above external environment information is, It includes information regarding external temperature, humidity, weather, etc. around the battery pack, and The above processor is, The fire risk level of the above battery is determined as at least one of the above-determined units, which are a normal stage, a concern stage, a danger stage, and a fire stage, and Based on the above risk level, it is graphically displayed using graphs, numerical values, and colors, and If it is determined that a specific battery module has a high fire risk, the carbon dioxide emission amount and emission time for the said specific battery module are increased, and If it is determined that the fire risk at a specific location within the battery module is high, the position of the fire extinguishing device is adjusted so that carbon dioxide is concentrated and discharged to the specific location, and Determine the carbon dioxide release sequence diagram according to the fire risk for each of the above battery units, and The battery status information displayed on the above user terminal is composed of information on reusable batteries among the batteries, and The information of the reusable battery includes information regarding the remaining usage, remaining usage time, degree of damage, and fire risk of the reusable battery. Battery fire prevention device.

Description

Battery Fire Prevention Apparatus and Method Thereof The present invention relates to a battery fire prevention device and a method related thereto. Recently, active research and development on secondary batteries has been underway. Here, secondary batteries are rechargeable batteries that can be interpreted to encompass conventional Ni/Cd batteries, Ni/MH batteries, and lithium-ion batteries. Consequently, their scope of application as power sources for electric vehicles is expanding, drawing attention as a next-generation energy storage medium. In the case of such electric vehicles, problems regarding the spread of fire frequently occur because they are not equipped with an appropriate control system to suppress the fire in the event of an incident. Generally, the dedicated battery frame of an electric vehicle is installed at the bottom of the vehicle and contains a large number of battery packs composed of lithium-ion battery cells. Lithium-ion batteries are chemical energy storage devices in which lithium ions are charged and discharged through a positive and negative electrode. Compared to other types of batteries, they offer faster charging and higher power density, allowing for long-term use. They also have the advantages of being relatively compact, lightweight, eco-friendly, and having lower maintenance costs. However, they have the disadvantage of being relatively vulnerable to fire compared to other types of batteries. Typically, battery fires are primarily caused by thermal runaway, and when this phenomenon occurs, the battery cells release the internally stored energy very rapidly, which poses a problem as it increases the risk of fire. FIG. 1 is a diagram illustrating a network environment in which a battery fire prevention device according to an embodiment of the present invention operates with a server and a user terminal. FIG. 2 is a block diagram showing the structure of a battery pack according to one embodiment of the present invention. FIG. 3 is a block diagram showing the configuration of a battery fire prevention device according to one embodiment of the present invention. FIG. 4 is a drawing for exemplarily illustrating a battery fire prevention system according to one embodiment of the present invention. FIG. 5 is a flowchart illustrating a battery fire prevention device method according to one embodiment of the present invention. FIG. 3 is a flowchart illustrating a battery fire prevention device method according to one embodiment of the present invention. FIG. 6 is a block diagram showing the hardware configuration of a battery fire prevention device according to one embodiment of the present invention. Hereinafter, various embodiments of the present invention will be described in detail with reference to the attached drawings. In this document, the same reference numerals are used for identical components in the drawings, and redundant descriptions of identical components are omitted. Regarding the various embodiments of the present invention disclosed in this document, specific structural or functional descriptions are provided merely for the purpose of explaining the embodiments of the present invention, and the various embodiments of the present invention may be implemented in various forms and should not be interpreted as being limited to the embodiments described in this document. Expressions such as "first," "second," "first," or "second" used in various embodiments may modify various components regardless of order and/or importance and do not limit said components. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be renamed the first component. The terms used in this document are used merely to describe specific embodiments and are not intended to limit the scope of other embodiments. Singular expressions may include plural expressions unless the context clearly indicates otherwise. All terms used herein, including technical or scientific terms, may have the same meaning as generally understood by those skilled in the art of the present invention. Terms defined in commonly used dictionaries may be interpreted as having the same or similar meaning as they have in the context of the relevant technology, and are not to be interpreted in an ideal or overly formal sense unless explicitly defined in this document. In some cases, even terms defined in this document shall not be interpreted to exclude embodiments of the present invention. FIG. 1 is a diagram illustrating a network environment in which a battery fire prevention device according to an embodiment of the present invention operates with a server and a user terminal. Referring to FIG. 1, a battery fire prevention device (100) according to one embodiment of the present invention can communicate with a server (200) and a user terminal (300) through a network. A battery fire prevention device (100) may be a