Energy storage equipment and battery control method and device

Abstract

The invention provides energy storage equipment and a battery control method and device, and belongs to the technical field of batteries. According to the implementation scheme of the battery control method, thermal runaway information of a battery is obtained, the thermal runaway information is used for representing whether thermal runaway happens to the battery or not, and the thermal runaway information comprises at least one of state parameters of the battery and the smoke concentration of the environment where the battery is located; and in response to the thermal runaway information representing that thermal runaway occurs, generating and sending a thermal runaway fault signal for the battery subjected to thermal runaway so as to trigger fire prevention and control operation on the battery subjected to thermal runaway.

Description

Technical Field

[0001] The present application relates to the technical field of batteries, and in particular to an energy storage device, a battery control method and device, an electrical device, an electronic device, a storage medium, and a program product. Background Art

[0002] For electric vehicles, battery technology is an important factor related to their development.

[0003] In recent years, with the rapid development of electric vehicles, lithium batteries have been widely used due to their own advantages. During the use of the battery, thermal runaway may occur. When the battery undergoes thermal runaway, it will cause fire accidents such as combustion and explosion, resulting in serious losses. Summary of the Invention

[0004] The present application aims to solve at least one of the technical problems existing in the background art. To this end, an object of the present application is to provide an energy storage device, a battery control method and device, an electronic device, an electrical device, a storage medium, and a program product to achieve real-time fire protection linkage and improve the fire protection efficiency of the battery.

[0005] An embodiment of the first aspect of the present application provides a control method for a battery, including: obtaining thermal runaway information of the battery, where the thermal runaway information is used to characterize whether the battery undergoes thermal runaway, and the thermal runaway information includes at least one of the state parameters of the battery and the smoke concentration in the environment where the battery is located; in response to the thermal runaway information indicating that thermal runaway has occurred, generating and sending a thermal runaway fault signal for the battery that has undergone thermal runaway to trigger a fire prevention and control operation for the battery that has undergone thermal runaway.

[0006] The control method for the battery in the embodiment of the present application can link the thermal runaway information of the battery with the fire prevention and control operation in real time by obtaining the thermal runaway information characterizing whether the battery undergoes thermal runaway, and in response to the thermal runaway information indicating that thermal runaway has occurred, generating and sending a thermal runaway fault signal for the battery that has undergone thermal runaway to trigger a fire prevention and control operation for the battery that has undergone thermal runaway, so as to timely identify the battery that has undergone thermal runaway and perform a fire prevention and control operation on the battery that has undergone thermal runaway, thereby improving the prevention and control operation efficiency of the battery against thermal runaway.

[0007] In some embodiments, the thermal runaway information includes the state parameters of the battery and their corresponding battery identifiers; in response to the thermal runaway information indicating a thermal runaway, a thermal runaway fault signal for the battery experiencing the thermal runaway is generated and sent, including: in response to the thermal runaway information indicating a thermal runaway, determining the battery experiencing the thermal runaway based on the thermal runaway information; generating and sending a thermal runaway fault signal for the battery experiencing the thermal runaway, the thermal runaway fault signal including the battery identifier of the battery experiencing the thermal runaway. By means of the state parameters of multiple batteries and their corresponding battery identifiers, determining the battery experiencing the thermal runaway, generating and sending a thermal runaway fault signal for the battery experiencing the thermal runaway, and the thermal runaway fault signal including the battery identifier of the battery experiencing the thermal runaway, the thermal runaway fault signal can be associated with the battery experiencing the thermal runaway, thereby accurately locating the battery experiencing the thermal runaway, and further improving the accuracy of the battery's prevention and control operations for thermal runaway.

[0008] In some embodiments, the battery can be placed in an electrical box, and the number of electrical boxes can be multiple. The thermal runaway information includes the smoke concentration in the electrical box and its corresponding electrical box identifier; in response to the thermal runaway information indicating a thermal runaway, a thermal runaway fault signal for the battery experiencing the thermal runaway is generated and sent, including: in response to the thermal runaway information indicating a thermal runaway, determining the electrical box in which the battery experiencing the thermal runaway is placed based on the thermal runaway information; generating and sending a thermal runaway fault signal for the battery experiencing the thermal runaway, the thermal runaway fault signal including the electrical box identifier of the electrical box in which the battery experiencing the thermal runaway is placed. By means of the smoke concentration in multiple electrical boxes included in the thermal runaway information and their corresponding electrical box identifiers, determining the electrical box in which the battery experiencing the thermal runaway is placed, generating and sending a thermal runaway fault signal for the battery experiencing the thermal runaway, and the thermal runaway fault signal including the electrical box identifier of the electrical box in which the battery experiencing the thermal runaway is placed, the thermal runaway fault signal can be associated with the electrical box in which the battery is placed, thereby accurately locating the battery experiencing the thermal runaway, and further improving the accuracy of the battery's prevention and control operations for thermal runaway.

[0009] In some embodiments, the state parameters include the voltage and temperature of the battery within a preset duration. By having the state parameters include the voltage and temperature of the battery within a preset duration, the accuracy of the battery's state parameters can be improved, thereby improving the accuracy of the result of determining that the thermal runaway information of the battery indicates a thermal runaway.

[0010] In some embodiments, in response to the state parameters of the battery and the smoke concentration in the environment where the battery is located satisfying a preset condition, it is determined that the thermal runaway information of the battery indicates a thermal runaway. By having both the state parameters of the battery and the smoke concentration in the environment where the battery is located satisfy the preset condition to determine that the thermal runaway information of the battery indicates a thermal runaway, the result of determining that the thermal runaway information of the battery indicates a thermal runaway can be made more accurate.

[0011] In some embodiments, when the thermal runaway information includes the voltage and temperature within a preset duration of the battery, the preset conditions include: the average value of the voltage within the preset duration is greater than or equal to a preset voltage threshold, the average value of the temperature of the battery within the preset duration is greater than or equal to a preset temperature threshold, and the smoke concentration in the environment where the battery is located is greater than or equal to a preset smoke concentration threshold. By using the average value of the voltage within the preset duration, the average value of the temperature of the battery within the preset duration, and the smoke concentration in the environment where the battery is located to determine whether the battery has a thermal runaway, the accuracy of determining the thermal runaway of the battery is improved.

[0012] In some embodiments, the thermal runaway fault signal includes a fault drive signal and a valve drive signal. Among them, the fault drive signal is used to drive the fire extinguishing agent sprinkler valve to open, and the valve drive signal is used to drive the main fire extinguishing agent valve to open. The fire prevention and control operation includes opening the fire extinguishing agent sprinkler valve and opening the main fire extinguishing agent valve; generating and sending a thermal runaway fault signal for the battery with a thermal runaway includes: generating a fault drive signal and sending the fault drive signal to the fire extinguishing agent sprinkler valve; and in response to the opening of the fire extinguishing agent sprinkler valve, generating a valve drive signal and sending the valve drive signal to the main fire extinguishing agent valve. By generating and sending a fault drive signal to the fire extinguishing agent sprinkler valve and, in response to the opening of the fire extinguishing agent sprinkler valve, sending a valve drive signal to the main fire extinguishing agent valve, the fire extinguishing agent sprinkler valve and the main fire extinguishing agent valve can be controlled in a linkage manner, thereby improving the operation accuracy of the fire prevention and control operation for the battery with a thermal runaway.

[0013] In some embodiments, when the battery control method is used to control multiple batteries, the fire extinguishing agent sprinkler valves correspond to the batteries one by one, and the fault drive signal includes the battery identifier of the battery with a thermal runaway. When the battery control method is used to control multiple batteries, the fire extinguishing agent sprinkler valves correspond to the batteries one by one, and the fault drive signal includes the battery identifier of the battery with a thermal runaway, which can accurately drive the fire extinguishing agent sprinkler valve to open, thereby improving the accuracy of determining the fire extinguishing agent sprinkler valve.

[0014] In some embodiments, it further includes: determining whether the fire extinguishing agent sprinkler valve is open based on the received feedback signal indicating whether the fire extinguishing agent sprinkler valve is open. By using the received feedback signal indicating whether the fire extinguishing agent sprinkler valve is open to determine whether the fire extinguishing agent sprinkler valve is open, it is possible to detect in a timely manner whether the fire extinguishing agent sprinkler valve is open, thereby improving the control accuracy of the battery control method.

[0015] An embodiment of the second aspect of the present application provides a control device for a battery. The control device for the battery includes: an acquisition module configured to acquire thermal runaway information of the battery, where the thermal runaway information is used to characterize whether the battery has a thermal runaway, and the thermal runaway information includes at least one of the state parameters of the battery and the smoke concentration in the environment where the battery is located; a processing module configured to generate and send a thermal runaway fault signal for the battery with a thermal runaway in response to the thermal runaway information indicating a thermal runaway, so as to trigger a fire prevention and control operation for the battery with a thermal runaway.

[0016] In the technical solution of the embodiment of the present application, by acquiring the thermal runaway information characterizing whether the battery has a thermal runaway, and generating and sending a thermal runaway fault signal for the battery with a thermal runaway in response to the thermal runaway information indicating a thermal runaway, so as to trigger a fire prevention and control operation for the battery with a thermal runaway, the thermal runaway information of the battery can be linked with the fire prevention and control operation in real time, the battery with a thermal runaway can be identified in time, and a fire prevention and control operation can be performed on the battery with a thermal runaway, thereby improving the efficiency of the fire prevention and control operation of the battery against thermal runaway.

[0017] In some embodiments, the thermal runaway information includes the state parameters of the battery and its corresponding battery identifier; the processing module includes: a battery determination unit configured to determine the battery with a thermal runaway based on the thermal runaway information in response to the thermal runaway information indicating a thermal runaway; a battery signal processing unit configured to generate and send a thermal runaway fault signal for the battery with a thermal runaway, and the thermal runaway fault signal includes the battery identifier of the battery with a thermal runaway.

[0018] In some embodiments, the battery is placed in an electrical box, and the number of electrical boxes is multiple. The thermal runaway information includes the smoke concentration in the electrical box and its corresponding electrical box identifier; the processing module includes: an electrical box determination unit configured to determine the electrical box in which the battery with a thermal runaway is placed based on the thermal runaway information in response to the thermal runaway information indicating a thermal runaway; an electrical box signal processing unit configured to generate and send a thermal runaway fault signal for the battery with a thermal runaway, and the thermal runaway fault signal includes the electrical box identifier of the electrical box in which the battery with a thermal runaway is placed.

[0019] In some embodiments, the state parameters include the voltage and temperature of the battery within a preset duration.

[0020] In some embodiments, the control device further includes: a thermal runaway determination module configured to determine that the thermal runaway information of the battery indicates a thermal runaway in response to the state parameters of the battery and the smoke concentration in the environment where the battery is located meeting a preset condition.

[0021] In some embodiments, the thermal runaway fault signal includes a fault driving signal and a valve driving signal. Among them, the fault driving signal is used to drive the fire extinguishing agent sprinkler valve to open, and the valve driving signal is used to drive the main fire extinguishing agent valve to open. The fire prevention and control operation includes opening the fire extinguishing agent sprinkler valve and opening the main fire extinguishing agent valve; the processing module includes: a first driving signal processing unit configured to generate a fault driving signal and send the fault driving signal to the fire extinguishing agent sprinkler valve; and a second driving signal processing unit configured to generate a valve driving signal and send the valve driving signal to the main fire extinguishing agent valve in response to the opening of the fire extinguishing agent sprinkler valve.

[0022] In some embodiments, when the control device of the battery is used to control multiple batteries, the fire extinguishing agent sprinkler valves correspond to the batteries one by one, and the fault driving signal includes the battery identifier of the battery that has a thermal runaway.

[0023] In some embodiments, the control device further includes: a valve determination module configured to determine whether the fire extinguishing agent sprinkler valve is open based on the received feedback signal indicating whether the fire extinguishing agent sprinkler valve is open.

[0024] An embodiment of the third aspect of the present application provides an electronic device, including a memory and a processor. The memory stores a computer program that can run on the processor, and when the processor executes the program, it implements the method of any one of the above.

[0025] An embodiment of the fourth aspect of the present application provides an electrical equipment, including a battery and the above-mentioned electronic device.

[0026] In some embodiments, the electrical equipment includes multiple batteries, and the electrical equipment further includes: multiple fire extinguishing agent sprinkler valves, where the multiple fire extinguishing agent sprinkler valves correspond to the positions of the multiple batteries one by one, and the fire extinguishing agent sprinkler valves are used to spray fire extinguishing agent on the corresponding batteries. It can accurately drive the fire extinguishing agent sprinkler valve to open, thereby improving the operation accuracy of the fire prevention and control operation for the battery that has a thermal runaway.

[0027] An embodiment of the fifth aspect of the present application provides an energy storage device, including an electrical box; a battery placed in the electrical box; and the above-mentioned electronic device.

[0028] In some embodiments, multiple batteries are placed in the electrical box, and the energy storage device further includes multiple fire extinguishing agent sprinkler valves arranged in the electrical box. The multiple fire extinguishing agent sprinkler valves correspond to the positions of the multiple batteries one by one, and the fire extinguishing agent sprinkler valves are used to spray fire extinguishing agent on the corresponding batteries. It can accurately drive the fire extinguishing agent sprinkler valve to open, thereby improving the operation accuracy of the fire prevention and control operation for the battery that has a thermal runaway.

[0029] An embodiment of the sixth aspect of the present application provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the method of any of the above is implemented.

[0030] An embodiment of the seventh aspect of the present application provides a computer program product, including computer-readable code, or a non-volatile computer-readable storage medium carrying the computer-readable code. When the computer-readable code runs in an electronic device, the processor in the electronic device executes the method of any of the above.

[0031] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the following specifically describes the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In the drawings, unless otherwise specified, the same reference numerals throughout the drawings denote the same or similar components or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in accordance with the present application and should not be regarded as limiting the scope of the present application.

[0033] Figure 1 A schematic structural diagram of a battery management system according to an embodiment of the present application is shown;

[0034] Figure 2 A flowchart of a control method for a battery according to an embodiment of the present application is shown Figure 1 ;

[0035] Figure 3 A flowchart of a process for generating a thermal runaway fault signal according to an embodiment of the present application is shown Figure 1 ;

[0036] Figure 4 A flowchart of a process for generating a thermal runaway fault signal according to an embodiment of the present application is shown Figure 2 ;

[0037] Figure 5 A flowchart of a process for generating a thermal runaway fault signal according to an embodiment of the present application is shown Figure 3 ;

[0038] Figure 6 A structural block diagram of a control device for a battery according to an embodiment of the present application is shown Figure 1 ;

[0039] Figure 7 A structural block diagram of a processing module according to an embodiment of the present application is shown Figure 1 ;

[0040] Figure 8 Shows the structural block diagram of the control device of the battery according to an embodiment of the present application Figure 2 ;

[0041] Figure 9 Shows the structural block diagram of the processing module according to an embodiment of the present application Figure 2 ;

[0042] Figure 10 Shows the control method flow of the battery according to an embodiment of the present application Figure 2 。 Detailed implementation manners

[0043] Hereinafter, embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solution of the present application more clearly, and thus are only examples and cannot be used to limit the protection scope of the present application.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.

[0045] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality" is more than two, unless otherwise specifically defined.

[0046] Referring to "embodiment" herein means that a specific feature, structure or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The phrase appears in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

[0047] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that there may be three relationships, for example, A and / or B, which may mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0048] In the description of the embodiments of the present application, the term "plurality" means two or more (including two). Similarly, "multiple groups" means two or more groups (including two groups), and "multiple pieces" means two or more pieces (including two pieces).

[0049] In the description of the embodiments of the present application, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of the present application.

[0050] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0051] Currently, from the perspective of the development of the market situation, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power, and solar power stations, but also widely used in electric transportation such as electric bicycles, electric motorcycles, and electric vehicles, as well as in multiple fields such as military equipment and aerospace. With the continuous expansion of the application fields of power batteries, the market demand is also constantly increasing.

[0052] Lithium-ion batteries (or simply referred to as lithium batteries) have been widely used in various electrical products due to their advantages such as high energy density, long cycle life, and no memory effect. For example, the electrical products can be, but are not limited to, mobile phones, tablets, laptop computers, electric toys, electric tools, battery cars, electric vehicles, ships, spacecraft, and so on.

[0053] In recent years, with the rapid development of batteries, as a new product of energy services, batteries are high-quality and reliable millisecond-level control response resources, which can provide various services such as peak shaving, frequency modulation, standby, and accident emergency response for the power grid. Lithium-ion batteries (or simply referred to as lithium batteries) are applied to new products of energy services due to their advantages such as high energy density, long cycle life, and no memory effect.

[0054] Since thermal runaway may occur during the use of lithium-ion batteries, when thermal runaway occurs in lithium-ion batteries, it will cause fire accidents such as combustion and explosion, resulting in serious losses. Therefore, in order to timely handle the fire accidents in the batteries, a fire protection system is usually equipped. This fire protection system is used to take fire extinguishing measures when thermal runaway occurs in the lithium battery, extinguish the fire in the battery and suppress the development of thermal runaway. However, the time from the occurrence of thermal runaway in the lithium battery cell to the spread of this thermal runaway phenomenon is relatively short. Therefore, this method cannot timely and accurately extinguish the fire in the battery and suppress the development of thermal runaway.

[0055] Based on this, the present application provides a control method for a battery. By obtaining thermal runaway information indicating whether the battery has thermal runaway, and when the thermal runaway information indicates that thermal runaway has occurred, generating and sending a thermal runaway fault signal for the battery with thermal runaway to trigger fire prevention and control operations for the battery with thermal runaway, the thermal runaway information of the battery can be linked with the fire prevention and control operations in real time, and the battery with thermal runaway can be identified in time, and fire prevention and control operations can be carried out on the battery with thermal runaway, thereby improving the efficiency of the battery's fire prevention and control operations for thermal runaway.

[0056] The control method for the battery disclosed in the embodiments of the present application can be but is not limited to being used in mobile phones, tablets, laptop computers, electric toys, electric tools, battery cars, electric vehicles, ships, spacecraft, etc. Among them, the electric toys can include fixed or mobile electric toys, such as game consoles, electric vehicle toys, electric ship toys, and electric aircraft toys, etc., and the spacecraft can include airplanes, rockets, space shuttles, and spaceships, etc.

[0057] The execution subject of the control method for the battery disclosed in the embodiments of the present application can be the slave battery management unit (Slaver Battery Management Unit, SBMU) in the battery management system (Battery Management System, BMS), or the control device of the battery's fire protection system. This control device can be, for example, an electronic device, or a processing chip of this electronic device, etc. When the control device is an electronic device, the electronic device can implement the control method for the battery through software or program code installed on the electronic device to implement this method.

[0058] Figure 1 Shows a schematic structural diagram of a battery management system according to an embodiment of the present application. The battery management system is applied to the battery. As Figure 1As shown, the BMS has a three-layer architecture. The main battery management unit MBMU (Master Battery Management Unit) is the first layer, several SBMUs are the second layer, and several battery monitoring units (Cell Supervision Circuit, CSC) are the third layer. The battery monitoring units correspond to the batteries one by one, and the MBMU controls the total fire extinguishing agent valve. The battery management system of this embodiment is applied to the battery.

[0059] According to one aspect of the present application, a control method for a battery is provided. Taking the SBMU as the execution subject of this method as an example below, the technical solution of the present application and how the technical solution of the present application solves the above technical problems will be described in detail through specific embodiments.

[0060] Figure 2 The flowchart of the control method for the battery according to the embodiment of the present application is shown Figure 1 . As Figure 2 shown, the control method for the battery includes: Step S210, obtaining the thermal runaway information of the battery, where the thermal runaway information is used to characterize whether the battery has a thermal runaway, and the thermal runaway information includes at least one of the state parameters of the battery and the smoke concentration in the environment where the battery is located; Step S220, in response to the thermal runaway information indicating a thermal runaway, generating and sending a thermal runaway fault signal for the battery with the thermal runaway to trigger a fire prevention and control operation for the battery with the thermal runaway.

[0061] In the embodiment of the present application, the battery may include a lithium-ion secondary battery, a lithium-ion primary battery, a lithium-sulfur battery, a sodium-lithium-ion battery, a sodium-ion battery, a magnesium-ion battery, etc., and the embodiment of the present application does not limit this.

[0062] In the embodiment of the present application, the thermal runaway information is used to characterize whether the battery has a thermal runaway. The thermal runaway information may include at least one of the state parameters of the battery and the smoke concentration. The smoke concentration in the environment where the battery is located may be the smoke concentration around the battery. For example, when the battery is placed in an electrical box, the smoke concentration in the environment where the battery is located may be the smoke concentration in the electrical box. The state parameters of the battery may include the temperature of the battery and the voltage of the battery, etc. The thermal runaway information may be obtained through corresponding sensors. For example, the temperature of the battery is obtained through a temperature sensor, the voltage of the battery is obtained through the electrical signal of the battery, and the smoke concentration in the electrical box is obtained through a gas detector. The smoke may include, but is not limited to, hydrogen, carbon monoxide, methane, ethylene, etc. Since when the battery has a thermal runaway, both the state parameters of the battery and the smoke concentration in the electrical box may reflect whether the battery has a thermal runaway, and the more parameters used, the higher the accuracy of the judgment. It should be understood that the thermal runaway information may also include other parameters that can reflect whether the battery has a thermal runaway situation, and the present application does not limit this.

[0063] In an embodiment of the present application, the SBMU can obtain the thermal runaway information of the battery from the CSC through wired communication or wireless communication. The CSC can obtain information collected by the sensors of the battery, electrical signals, etc. The thermal runaway information can be periodically collected by the SBMU from the CSC, or reported by the CSC.

[0064] In step S220, in response to the thermal runaway information indicating a thermal runaway, a thermal runaway fault signal for the battery with a thermal runaway is generated and sent to trigger a fire prevention and control operation for the battery with a thermal runaway.

[0065] In the example, when the thermal runaway information includes the state parameters of the battery and the smoke concentration in the environment where the battery is located, if any one of the state parameters of the battery and the smoke concentration in the environment where the battery is located meets the preset condition, or both the state parameters of the battery and the smoke concentration in the environment where the battery is located meet the preset condition, it can be determined that the thermal runaway information of the battery indicates a thermal runaway, that is, it is determined that the battery has a thermal runaway.

[0066] In an embodiment of the present application, the battery with a thermal runaway can be determined according to the thermal runaway information, and a thermal runaway fault signal for the battery with a thermal runaway is generated and sent. The thermal runaway fault signal can include the battery identifier of the battery with a thermal runaway or the electrical box identifier of the electrical box where the battery with a thermal runaway is placed, so that the battery with a thermal runaway can be determined according to the battery identifier of the battery or the electrical box identifier of the electrical box where the battery with a thermal runaway is placed.

[0067] In an embodiment of the present application, the thermal runaway fault signal can include the thermal runaway type of the battery with a thermal runaway. For example, the battery temperature is too high or the battery is on fire, etc. The specific actions of the fire prevention and control operation can correspond to the thermal runaway type of the battery with a thermal runaway included in the thermal runaway fault signal. For example, when the battery with a thermal runaway is on fire, the fire prevention and control operation can be to open the fire extinguishing agent nozzle at the position of the battery with a thermal runaway and aim the nozzle at the battery with a thermal runaway to spray the fire extinguishing agent to extinguish the fire on the battery with a thermal runaway; when the temperature of the battery with a thermal runaway is too high, the thermal runaway can open the fire extinguishing agent nozzle at the position of the battery with a thermal runaway and aim the nozzle at the battery with a thermal runaway to spray the agent to cool down the battery with a thermal runaway.

[0068] The control method of the battery according to the embodiment of the present application obtains thermal runaway information indicating whether the battery has thermal runaway, and in response to the thermal runaway information indicating thermal runaway, generates and sends a thermal runaway fault signal for the battery with thermal runaway to trigger fire prevention and control operations for the battery with thermal runaway. The thermal runaway information of the battery can be linked with the fire prevention and control operations in real time, and the battery with thermal runaway can be identified in time, and fire prevention and control operations can be carried out on the battery with thermal runaway, thereby improving the efficiency of the battery's prevention and control operations for thermal runaway.

[0069] According to some embodiments, the thermal runaway information includes the state parameters of the battery and their corresponding battery identifiers.

[0070] Figure 3 The flowchart shows the process of generating a thermal runaway fault signal according to the embodiment of the present application Figure 1 . As Figure 3 shown, the process of generating a thermal runaway fault signal may include step S310 of determining the battery with thermal runaway based on the thermal runaway information in response to the thermal runaway information indicating thermal runaway; and step S320 of generating and sending a thermal runaway fault signal for the battery with thermal runaway, where the thermal runaway fault signal includes the battery identifier of the battery with thermal runaway. The process of generating the thermal runaway fault signal may be, for example, combined with step S220 as Figure 2 shown.

[0071] In the example, the state parameters of the battery may include the state parameters of the battery and the battery identifier of the corresponding battery. The battery identifier of the battery can be used to represent the serial number of the battery or the position of the battery. The battery identifier of the battery may be, for example, the number of the battery itself, or the product serial number, or the artificially defined identifier, etc.

[0072] Step S310 can determine the battery with thermal runaway based on the thermal runaway information in response to the thermal runaway information indicating thermal runaway.

[0073] In the example, when it is obtained that the state parameters of at least one battery meet the preset conditions, it can be determined that the thermal runaway information of the battery indicates that the battery has thermal runaway, that is, it is determined that the battery has thermal runaway, and the battery to which the thermal runaway information belongs is determined from the battery identifier in the thermal runaway information, and the battery is determined as the battery with thermal runaway.

[0074] Step S320 can generate and send a thermal runaway fault signal for the battery with thermal runaway, where the thermal runaway fault signal includes the battery identifier of the battery with thermal runaway.

[0075] In an example, based on the information of the battery with thermal runaway occurring and the battery identifier of the battery with thermal runaway occurring, a thermal runaway fault signal for the battery with thermal runaway occurring can be generated. The thermal runaway fault signal includes the battery identifier of the battery with thermal runaway occurring, and the thermal runaway fault signal of the battery with thermal runaway occurring can be accurately sent.

[0076] According to the process of generating a thermal runaway fault signal in an embodiment of the present application, by the state parameters of the battery and its corresponding battery identifier, the battery with thermal runaway occurring is determined, and a thermal runaway fault signal for the battery with thermal runaway occurring is generated and sent. The thermal runaway fault signal includes the battery identifier of the battery with thermal runaway occurring, and the thermal runaway fault signal can be associated with the battery with thermal runaway occurring, so as to accurately locate the battery with thermal runaway occurring, and further improve the accuracy of the prevention and control operation of the battery against thermal runaway.

[0077] According to some embodiments, the battery can be placed in an electrical box, and the number of electrical boxes can be multiple. The thermal runaway information includes the smoke concentration in the electrical box and its corresponding electrical box identifier.

[0078] Figure 4 The flowchart showing the process of generating a thermal runaway fault signal according to an embodiment of the present application Figure 2 As Figure 4 shown, the process of generating a thermal runaway fault signal may include step S410 of, in response to the thermal runaway information indicating that thermal runaway has occurred, determining the electrical box in which the battery with thermal runaway occurring is placed based on the thermal runaway information; and step S420 of generating and sending a thermal runaway fault signal for the battery with thermal runaway occurring, where the thermal runaway fault signal includes the electrical box identifier of the electrical box in which the battery with thermal runaway occurring is placed. The process of generating the thermal runaway fault signal may be, for example, combined with step S220 as Figure 2 shown.

[0079] In an example, the number of electrical boxes is multiple, and at least one battery is placed in each electrical box. The thermal runaway information may include the smoke concentration in the electrical box and its corresponding electrical box identifier. The electrical box identifier of the electrical box can be used to represent the serial number of the electrical box or the position of the electrical box. The electrical box identifier of the electrical box can be, for example, the number of the electrical box itself, or the product serial number, or a manually defined identifier, etc.

[0080] Step S410 can, in response to the thermal runaway information indicating that thermal runaway has occurred, determine the electrical box in which the battery with thermal runaway occurring is placed based on the thermal runaway information.

[0081] In an example, when it is obtained that the smoke concentration in at least one electrical box satisfies a preset condition, it can be determined that the thermal runaway information indicates that the battery has thermal runaway. The electrical box in which the battery with thermal runaway occurring is placed is determined from the electrical box identifier in the thermal runaway information, and this electrical box is determined as the electrical box with thermal runaway occurring.

[0082] Step S420: A thermal runaway fault signal for the battery experiencing thermal runaway can be generated and sent. The thermal runaway fault signal includes the electrical box identification of the electrical box where the battery experiencing thermal runaway is placed.

[0083] In the example, based on the information of the electrical box determined to have experienced thermal runaway and the electrical box identification of the electrical box experiencing thermal runaway, a thermal runaway fault signal for the battery experiencing thermal runaway can be generated. The thermal runaway fault signal includes the electrical box identification of the electrical box experiencing thermal runaway, and the thermal runaway fault signal of the battery experiencing thermal runaway can be accurately sent.

[0084] In some embodiments, the number of electrical boxes can be multiple. Multiple batteries are placed in the electrical boxes. The thermal runaway information includes the state parameters of the batteries and the corresponding battery identifications, the smoke concentration in the electrical box and the corresponding electrical box identifications. In response to the thermal runaway information indicating thermal runaway, based on the thermal runaway information, determine the battery experiencing thermal runaway and the electrical box where the battery experiencing thermal runaway is placed, and generate and send a thermal runaway fault signal for the battery experiencing thermal runaway. The thermal runaway fault signal includes the battery identification of the battery experiencing thermal runaway and the electrical box identification of the electrical box where the battery experiencing thermal runaway is placed.

[0085] In the process of generating a thermal runaway fault signal according to the embodiments of the present application, through the smoke concentration in multiple electrical boxes included in the thermal runaway information and the corresponding electrical box identifications, determine the electrical box where the battery experiencing thermal runaway is placed, generate and send a thermal runaway fault signal for the battery experiencing thermal runaway. The thermal runaway fault signal includes the electrical box identification of the electrical box where the battery experiencing thermal runaway is placed, so that the thermal runaway fault signal can be associated with the electrical box where the battery is placed, thereby accurately locating the battery experiencing thermal runaway, and further improving the accuracy of the prevention and control operation of the battery against thermal runaway.

[0086] According to some embodiments of the present application, the state parameters include the voltage and temperature of the battery within a preset time period.

[0087] In the example, the voltage of the battery can be obtained through a pre-set voltage sensor or voltage detection chip, and the temperature of the battery can be obtained through a pre-set temperature sensor. Both the voltage and temperature of the battery can reflect whether the battery has experienced thermal runaway. However, since there may be errors in the voltage and temperature of the battery obtained once, it will lead to deviations in the result of whether the battery has experienced thermal runaway characterized by the thermal runaway information. Therefore, in order to make the control process of the battery more accurate, the state parameters can include the voltage and temperature of the battery within a preset time period.

[0088] In the embodiments of the present application, by including the voltage and temperature of the battery within a preset time period in the state parameters, the accuracy of the state parameters of the battery can be improved, thereby improving the accuracy of the result of determining that the thermal runaway information of the battery indicates thermal runaway.

[0089] According to some embodiments of the present application, the battery control method further includes: in response to the state parameters of the battery and the smoke concentration in the environment where the battery is located satisfying a preset condition, determining that the thermal runaway information of the battery indicates a thermal runaway.

[0090] In an example, the state parameters of the battery may include one or more parameters. The state parameters of the battery satisfying the preset condition may be that one of the parameters included in the battery state parameters satisfies the preset condition, or all of the parameters included in the battery state parameters satisfy the preset condition.

[0091] In an example, the state parameters of the battery satisfying the preset condition may be that the state parameters of the battery are greater than or equal to a preset threshold, or the state parameters of the battery are less than a preset threshold. The smoke concentration in the environment where the battery is located may be the smoke concentration in the electrical box where the battery is placed. The smoke concentration in the environment where the battery is located satisfying the preset condition may be that the smoke concentration in the electrical box is greater than or equal to a preset threshold, or the smoke concentration in the electrical box is less than a preset threshold.

[0092] In the embodiments of the present application, by both the state parameters of the battery and the smoke concentration in the environment where the battery is located satisfying the preset condition, it is determined that the thermal runaway information of the battery indicates a thermal runaway, thereby making the result of determining that the thermal runaway information of the battery indicates a thermal runaway more accurate.

[0093] According to some embodiments, when the thermal runaway information includes the voltage and temperature within a preset duration of the battery, the preset condition includes: the average value of the voltage within the preset duration is greater than or equal to a preset voltage threshold, the average value of the temperature of the battery within the preset duration is greater than or equal to a preset temperature threshold, and the smoke concentration in the environment where the battery is located is greater than or equal to a preset smoke concentration threshold.

[0094] Exemplarily, when the battery is in thermal runaway, due to the redox reaction of the electrode material, the internal voltage of the battery will suddenly change; when the battery is in thermal runaway, a large amount of heat will be generated inside the battery, resulting in an increase in the battery temperature; when the battery is in thermal runaway, a large amount of gas, such as hydrogen, carbon monoxide, etc., will also be generated inside the battery. Therefore, if a sudden change in the battery voltage, an increase in the battery temperature, and an increase in the smoke concentration in the environment where the battery is located are detected, it is necessary to consider whether the battery has undergone thermal runaway.

[0095] Exemplarily, it is possible to determine whether a battery has thermal runaway by the average value of the voltage within a preset time period, the average value of the temperature of the battery within the preset time period, and the smoke concentration in the electrical box where the battery is placed. If the average value of the voltage within the preset time period is greater than or equal to a preset voltage threshold, the average value of the temperature of the battery within the preset time period is greater than or equal to a preset temperature threshold, and the smoke concentration in the environment where the battery is located is greater than or equal to a preset smoke concentration threshold, it can be determined that the thermal runaway information of the battery indicates thermal runaway.

[0096] It can be understood that it is also possible to determine whether a battery has thermal runaway by the minimum value of the voltage within a preset time period, the maximum value of the temperature within the preset time period, and the smoke concentration in the electrical box where the battery is placed. If the minimum value of the voltage within the preset time period is less than the preset voltage threshold, the maximum value of the temperature of the battery within the preset time period is greater than or equal to the preset temperature threshold, and the smoke concentration in the environment where the battery is located is greater than or equal to the preset smoke concentration threshold, it can be determined that the thermal runaway information of the battery indicates thermal runaway.

[0097] In the embodiments of the present application, by the average value of the voltage within a preset time period, the average value of the temperature of the battery within the preset time period, and the smoke concentration in the environment where the battery is located, it is determined whether the battery has thermal runaway, improving the accuracy of determining battery thermal runaway.

[0098] According to some embodiments, the thermal runaway fault signal includes a fault drive signal and a valve drive signal. Among them, the fault drive signal is used to drive the opening of the fire extinguishing agent sprinkler valve, and the valve drive signal is used to drive the opening of the fire extinguishing agent main valve. The fire prevention and control operation includes opening the fire extinguishing agent sprinkler valve and opening the fire extinguishing agent main valve.

[0099] Figure 5 Shows the process flow of generating a thermal runaway fault signal according to an embodiment of the present application Figure 3 . As Figure 5 shown, the process of sending the thermal runaway fault signal may include step S510 of generating a fault drive signal and sending the fault drive signal to the fire extinguishing agent sprinkler valve; and step S520 of generating a valve drive signal and sending the valve drive signal to the fire extinguishing agent main valve in response to the opening of the fire extinguishing agent sprinkler valve.

[0100] Step S510: A fault drive signal can be generated and sent to the fire extinguishing agent sprinkler valve.

[0101] In the example, the fire extinguishing agent sprinkler valve may have a preset corresponding relationship with the battery. The fire extinguishing agent sprinkler valve corresponding to the battery with thermal runaway can be determined according to the battery identifier included in the thermal runaway fault signal, and this fire extinguishing agent sprinkler valve is used as the target fire extinguishing agent sprinkler valve. And a fault drive signal is sent to the fire extinguishing agent sprinkler valve, and the fault drive signal is used to drive the opening of the fire extinguishing agent sprinkler valve.

[0102] In one example, when multiple batteries are placed in an electrical box, the thermal runaway information may include the state parameters of the batteries and their corresponding battery identifiers. In another example, when the number of electrical boxes is multiple, the thermal runaway information may include the smoke concentration inside the electrical box and its corresponding electrical box identifier.

[0103] Step S520: A valve drive signal can be generated and sent to the main extinguishing agent valve in response to the opening of the extinguishing agent nozzle valve.

[0104] In the example, after the main extinguishing agent valve is opened, the extinguishing agent nozzle can spray the extinguishing agent to extinguish the fire. The extinguishing agent nozzle can send feedback information after receiving the fault drive signal to feedback whether the extinguishing agent nozzle has been opened. After the extinguishing agent nozzle valve is opened, a valve drive signal can be generated and sent to the main extinguishing agent valve to open the main extinguishing agent valve, so that the extinguishing agent can reach the extinguishing agent nozzle valve along the main extinguishing agent valve, and the extinguishing agent nozzle sprays the extinguishing agent to extinguish the fire.

[0105] In the embodiments of the present application, by generating and sending a fault drive signal to the extinguishing agent nozzle valve, and in response to the opening of the extinguishing agent nozzle valve, sending a valve drive signal to the main extinguishing agent valve, the extinguishing agent nozzle valve and the main extinguishing agent valve can be controlled in a linkage manner, thereby improving the operation accuracy of the fire prevention and control operation for the battery with thermal runaway.

[0106] According to some embodiments, when the battery control method is used to control multiple batteries, the extinguishing agent nozzle valves correspond to the batteries one by one, and the fault drive signal includes the battery identifier of the battery with thermal runaway.

[0107] In the example, the corresponding relationship between the extinguishing agent nozzle valve and the battery can be pre-stored in the battery control device. For example, when deploying the batteries, these batteries can be deployed according to the corresponding relationship between the extinguishing agent nozzle valve and the battery.

[0108] In the embodiments of the present application, when the battery control method is used to control multiple batteries, the extinguishing agent nozzle valves correspond to the batteries one by one, and the fault drive signal includes the battery identifier of the battery with thermal runaway, which can accurately drive the extinguishing agent nozzle valve to open, thereby improving the accuracy of determining the extinguishing agent nozzle valve.

[0109] According to some embodiments, the battery control method may further include: determining whether the extinguishing agent nozzle valve is opened based on the received feedback signal indicating whether the extinguishing agent nozzle valve is opened.

[0110] In the example, the feedback signal may include that the fire extinguishing agent nozzle has been opened or the fire extinguishing agent nozzle has not been opened. The feedback signal may also include the identification of the fire extinguishing agent nozzle, so that the corresponding fire extinguishing agent nozzle valve and whether the fire extinguishing agent nozzle valve is opened can be determined according to the feedback signal.

[0111] In the embodiment of the present application, by receiving the feedback signal for indicating whether the fire extinguishing agent nozzle valve is opened, it is determined whether the fire extinguishing agent nozzle valve is opened, and it can be timely detected whether the fire extinguishing agent nozzle valve is opened, thereby improving the control accuracy of the battery control method.

[0112] According to another aspect of the present application, a battery control device is further provided.

[0113] Figure 6 The structural block diagram of the battery control device 600 according to the embodiment of the present application is shown Figure 1 . As Figure 6 shown, the battery control device 600 includes: an acquisition module 610, configured to acquire the thermal runaway information of the battery, where the thermal runaway information is used to characterize whether the battery has a thermal runaway, and the thermal runaway information includes at least one of the state parameters of the battery and the smoke concentration in the environment where the battery is located; a processing module 820, configured to generate and send a thermal runaway fault signal for the battery with a thermal runaway in response to the thermal runaway information indicating a thermal runaway, so as to trigger a fire prevention and control operation for the battery with a thermal runaway.

[0114] Since the acquisition module 610 and the processing module 620 in the battery control device 600 can respectively correspond to steps 210 and 220 as Figure 2 shown, the details of each aspect will not be elaborated here.

[0115] In the embodiment of the present application, by acquiring the thermal runaway information characterizing whether the battery has a thermal runaway, and generating and sending a thermal runaway fault signal for the battery with a thermal runaway in response to the thermal runaway information indicating a thermal runaway, so as to trigger a fire prevention and control operation for the battery with a thermal runaway, the thermal runaway information of the battery can be linked with the fire prevention and control operation in real time, the battery with a thermal runaway can be timely identified, and a fire prevention and control operation can be performed on the battery with a thermal runaway, thereby improving the efficiency of the fire prevention and control operation of the battery against thermal runaway.

[0116] Figure 7 The structural block diagram of the processing module 620 according to the embodiment of the present application is shown Figure 1 .

[0117] In one embodiment, the thermal runaway information includes the state parameters of the battery and their corresponding battery identifiers. The processing module 620 may include: a battery determination unit 621, configured to determine the battery in which thermal runaway occurs based on the thermal runaway information in response to the thermal runaway information indicating that thermal runaway has occurred; a battery signal processing unit 623, configured to generate and send a thermal runaway fault signal for the battery in which thermal runaway occurs, the thermal runaway fault signal including the battery identifier of the battery in which thermal runaway occurs.

[0118] In one embodiment, the batteries are placed in electrical boxes, and the number of electrical boxes is multiple. The thermal runaway information includes the smoke concentration in the electrical box and its corresponding electrical box identifier. The processing module 620 may include: an electrical box determination unit 622, configured to determine the electrical box in which the battery in which thermal runaway occurs is placed based on the thermal runaway information in response to the thermal runaway information indicating that thermal runaway has occurred; an electrical box signal processing unit 624, configured to generate and send a thermal runaway fault signal for the battery in which thermal runaway occurs, the thermal runaway fault signal including the electrical box identifier of the electrical box in which the battery in which thermal runaway occurs is placed.

[0119] In one embodiment, the batteries are placed in electrical boxes, and the number of electrical boxes is multiple. The thermal runaway information includes the state parameters of the battery and their corresponding battery identifiers, the smoke concentration in the electrical box and its corresponding electrical box identifier. The processing module 620 may include: a battery determination unit 621, configured to determine the battery in which thermal runaway occurs based on the thermal runaway information in response to the thermal runaway information indicating that thermal runaway has occurred; an electrical box determination unit 622, configured to determine the electrical box in which the battery in which thermal runaway occurs is placed based on the thermal runaway information in response to the thermal runaway information indicating that thermal runaway has occurred; a battery signal processing unit 623, configured to generate and send a thermal runaway fault signal for the battery in which thermal runaway occurs, the thermal runaway fault signal including the battery identifier of the battery in which thermal runaway occurs; an electrical box signal processing unit 622, configured to generate and send a thermal runaway fault signal for the battery in which thermal runaway occurs, the thermal runaway fault signal including the battery identifier of the battery in which thermal runaway occurs.

[0120] In one embodiment, the state parameters may include the voltage and temperature of the battery within a preset duration.

[0121] Figure 8 The structural block diagram of the control device 600 of the battery according to an embodiment of the present application is shown Figure 2 。

[0122] In one embodiment, the control device 600 of the battery further includes: a thermal runaway determination module 630, configured to determine that the thermal runaway information of the battery indicates that thermal runaway has occurred in response to the state parameters of the battery and the smoke concentration in the environment where the battery is located satisfying a preset condition.

[0123] Figure 9Shows the structural block of the processing module 620 according to an embodiment of the present application Figure 2 .

[0124] In one example, the thermal runaway fault signal includes a fault drive signal and a valve drive signal. Among them, the fault drive signal is used to drive the extinguishing agent nozzle valve to open, and the valve drive signal is used to drive the main extinguishing agent valve to open. The fire prevention and control operation includes opening the extinguishing agent nozzle valve and opening the main extinguishing agent valve. The processing module 620 may include: a first drive signal processing unit 625, configured to generate a fault drive signal and send the fault drive signal to the extinguishing agent nozzle valve; and a second drive signal processing unit 626, configured to generate a valve drive signal and send the valve drive signal to the main extinguishing agent valve in response to the opening of the extinguishing agent nozzle valve.

[0125] In one embodiment, when the control device of the battery is used to control multiple batteries, the extinguishing agent nozzle valves correspond to the batteries one by one, and the fault drive signal includes the battery identifier of the battery that has experienced thermal runaway.

[0126] In one embodiment, the processing module 620 may further include: a valve determination unit 627, configured to determine whether the extinguishing agent nozzle valve is open based on the received feedback signal indicating whether the extinguishing agent nozzle valve is open.

[0127] According to another aspect of the present application, an electronic device is further provided, including a memory and a processor. The memory is used to store computer-executable instructions; the processor is used to access the memory and execute the computer-executable instructions to perform the operations in the control method of any one of the foregoing embodiments.

[0128] In one embodiment, the processor may be an integrated circuit chip with signal processing capabilities. During implementation, the steps of the above method embodiments may be completed by the integrated logic circuit in the hardware of the processor or instructions in software form. The above-mentioned processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. It can implement or execute the various methods and steps disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The steps of the method disclosed in combination with the embodiments of the present application may be directly embodied as being executed and completed by the hardware decoding processor, or executed and completed by a combination of the hardware and software modules in the decoding processor. The software module may be located in a mature storage medium in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, etc. This storage medium is located in the memory, and the processor reads the information in the memory and combines its hardware to complete the steps of the above method.

[0129] In one embodiment, the memory may be volatile memory, non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory may be read-only memory (ROM), programmable ROM (PROM), erasable programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. The volatile memory may be random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0130] According to another aspect of the present application, there is also provided an electrical device including a battery and the electronic device in the above embodiment.

[0131] The electrical device may be, but is not limited to, a mobile phone, a tablet computer, a laptop computer, an electric toy, an electric tool, a battery car, an electric vehicle, a ship, a spacecraft, and the like. Among them, the electric toy may include a fixed or mobile electric toy, for example, a game console, an electric vehicle toy, an electric ship toy, an electric aircraft toy, and the like. The spacecraft may include an airplane, a rocket, a space shuttle, a spaceship, and the like.

[0132] According to some embodiments, the electrical device includes a plurality of batteries, and the electrical device further includes: a plurality of fire extinguishing agent spray valves, which are in one-to-one correspondence with the positions of the plurality of batteries, and the fire extinguishing agent spray valves are used to spray fire extinguishing agent on the corresponding batteries.

[0133] In the embodiments of the present application, in an example, the correspondence between the fire extinguishing agent nozzle valve and the battery may be pre-stored in the control device of the battery. For example, when deploying the energy storage device, these batteries may be deployed according to the correspondence between the fire extinguishing agent nozzle valve and the battery.

[0134] In the embodiments of the present application, when the electrical equipment includes multiple batteries, the positions of the fire extinguishing agent nozzle valves and the batteries correspond one by one, and the fire extinguishing agent nozzle valves can be accurately driven to open, thereby improving the operation accuracy of the fire prevention and control operation for the battery that has experienced thermal runaway.

[0135] According to another aspect of the present application, an energy storage device is further provided, which may include an electrical box, a battery placed in the electrical box, and the electronic device in the above embodiments.

[0136] In the embodiments of the present application, the energy storage device may include one or more electrical boxes, and one or more batteries may be placed in the electrical box. The battery may include a lithium-ion secondary battery, a lithium-ion primary battery, a lithium-sulfur battery, a sodium-lithium-ion battery, a sodium-ion battery, a magnesium-ion battery, etc., and the embodiments of the present application do not limit this.

[0137] According to some embodiments, multiple batteries are placed in the electrical box, and the energy storage device may further include: multiple fire extinguishing agent nozzle valves provided in the electrical box, the positions of the multiple fire extinguishing agent nozzle valves correspond to the positions of the multiple batteries one by one, and the fire extinguishing agent nozzle valves are used to spray fire extinguishing agent on the corresponding batteries.

[0138] In the embodiments of the present application, in an example, the correspondence between the fire extinguishing agent nozzle valve and the battery may be pre-stored in the control device of the battery. For example, when deploying the energy storage device, these batteries may be deployed according to the correspondence between the fire extinguishing agent nozzle valve and the battery.

[0139] In the embodiments of the present application, when multiple batteries are placed in the electrical box, the positions of the fire extinguishing agent nozzle valves and the batteries correspond one by one, and the fire extinguishing agent nozzle valves can be accurately driven to open, thereby improving the operation accuracy of the fire prevention and control operation for the battery that has experienced thermal runaway.

[0140] According to another aspect of the present application, a computer-readable storage medium is further provided, on which a computer program is stored. When the computer program is executed by a processor, the method in any one of the foregoing embodiments is implemented.

[0141] According to another aspect of the present application, a computer program product is further provided, including computer-readable code, or a non-volatile computer-readable storage medium carrying the computer-readable code. When the computer-readable code runs in an electronic device, the processor in the electronic device executes to implement the method in any one of the foregoing embodiments.

[0142] It should be understood that although the steps in the flowcharts involved in the above-described embodiments are shown in sequence according to the indications of the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless specifically stated herein, there is no strict order restriction for the execution of these steps, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-described embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily executed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be executed alternately or in turn with at least a part of other steps or steps or stages in other steps.

[0143] According to an embodiment of the present application, the battery can be controlled by the following method.

[0144] Referring to Figure 10 , Figure 10 shows the flow of the battery control method according to an embodiment of the present application Figure 2 .

[0145] First, the SBMU can obtain the thermal runaway information of the battery from the CSC. Among them, the thermal runaway information includes the state parameters of the battery (CSC sampling data) and the corresponding battery identification, the smoke concentration in the electrical box and its corresponding electrical box identification. The state parameters of the battery include the voltage and temperature of the battery within a preset time period.

[0146] Next, the SBMU determines whether the battery has a thermal runaway, that is, determines whether the state parameters (CSC sampling data) meet the thermal control conditions, and whether the smoke detector has a thermal runaway alarm. Exemplarily, the specific determination method can be to determine whether the average value of the voltage within a preset time period is greater than or equal to a preset voltage threshold, whether the average value of the temperature of the battery within a preset time period is greater than or equal to a preset temperature threshold, and whether the smoke concentration in the electrical box where the battery is placed is greater than or equal to a preset smoke concentration threshold.

[0147] If the average value of the voltage within the accurate preset time period is greater than or equal to the preset voltage threshold, the average value of the temperature of the battery within the preset time period is greater than or equal to the preset temperature threshold, and the smoke concentration in the electrical box where the battery is placed is greater than or equal to the preset smoke concentration threshold, the battery with a thermal runaway and the electrical box where the battery with a thermal runaway is placed can be determined based on the thermal runaway information.

[0148] Next, the SBMU can generate a thermal runaway fault drive instruction (fault drive signal) for the battery that has experienced thermal runaway, and send the thermal runaway fault drive instruction (fault drive signal) for the battery that has experienced thermal runaway to the CSC through the CCAN to drive the fire extinguishing agent sprinkler valve to open. Among them, the fault drive signal may include the battery identifier of the battery that has experienced thermal runaway and the electrical box identifier of the electrical box where the battery that has experienced thermal runaway is placed.

[0149] After receiving the thermal runaway fault drive instruction, the CSC drives the fire extinguishing agent sprinkler valve to open through the CSC high-side drive enable, specifically, it can drive the resistance wire in the fire extinguishing agent sprinkler valve to disconnect. The CSC checks in real time whether the resistance wire is disconnected to determine whether the fire extinguishing agent sprinkler valve is open. And send a resistance wire disconnection signal to the SBMU, that is, a feedback signal.

[0150] After receiving the feedback signal sent by the CSC indicating whether the fire extinguishing agent sprinkler valve is open, the SBMU determines whether the fire extinguishing agent sprinkler valve is open. After determining that the fire extinguishing agent sprinkler valve is open, it can send a valve drive signal to the MBMU to control the opening of the total fire extinguishing agent valve.

[0151] After detecting the fire extinguishing agent valve drive signal sent by the SBMU, the MBMU sends a high-side drive enable to the fire control controller to drive the total fire extinguishing agent valve to open.

[0152] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be covered within the scope of the claims and the description of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A control method for a battery, characterized in that, the method includes: obtaining thermal runaway information of the battery, where the thermal runaway information is used to characterize whether the battery has thermal runaway, and the thermal runaway information includes at least one of the state parameters of the battery and the smoke concentration in the environment where the battery is located; in response to the thermal runaway information indicating thermal runaway, generating and sending a thermal runaway fault signal for the battery with thermal runaway to trigger a fire prevention and control operation for the battery with thermal runaway.

2. The method according to claim 1, characterized in that, the thermal runaway information includes the state parameters of the battery and its corresponding battery identifier; the generating and sending a thermal runaway fault signal for the battery with thermal runaway in response to the thermal runaway information indicating thermal runaway includes: in response to the thermal runaway information indicating thermal runaway, determining the battery with thermal runaway based on the thermal runaway information; generating and sending a thermal runaway fault signal for the battery with thermal runaway, and the thermal runaway fault signal includes the battery identifier of the battery with thermal runaway.

3. The method according to claim 1, characterized in that, the battery is placed in an electrical box, the number of electrical boxes is multiple, and the thermal runaway information includes the smoke concentration in the electrical box and its corresponding electrical box identifier; the generating and sending a thermal runaway fault signal for the battery with thermal runaway in response to the thermal runaway information indicating thermal runaway includes: in response to the thermal runaway information indicating thermal runaway, determining the electrical box where the battery with thermal runaway is placed based on the thermal runaway information; generating and sending a thermal runaway fault signal for the battery with thermal runaway, and the thermal runaway fault signal includes the electrical box identifier of the electrical box where the battery with thermal runaway is placed.

4. The method according to any one of claims 1 to 3, characterized in that, the state parameters include the voltage and temperature of the battery within a preset duration.

5. The method according to any one of claims 1 to 4, characterized in that, further includes: in response to the state parameters of the battery and the smoke concentration in the environment where the battery is located satisfying a preset condition, determining that the thermal runaway information of the battery indicates thermal runaway.

6. The method according to claim 5, characterized in that, when the thermal runaway information includes the voltage and temperature of the battery within a preset duration, the preset condition includes: the average value of the voltage within the preset duration is greater than or equal to a preset voltage threshold, the average value of the temperature of the battery within the preset duration is greater than or equal to a preset temperature threshold, and the smoke concentration in the environment where the battery is located is greater than or equal to a preset smoke concentration threshold.

7. The method according to any one of claims 1 to 6, characterized in that, the thermal runaway fault signal includes a fault drive signal and a valve drive signal, where the fault drive signal is used to drive the opening of the fire extinguishing agent nozzle valve, the valve drive signal is used to drive the opening of the fire extinguishing agent main valve, and the fire prevention and control operation includes opening the fire extinguishing agent nozzle valve and opening the fire extinguishing agent main valve; Generating and sending a thermal runaway fault signal for the battery that has experienced thermal runaway includes: Generating a fault drive signal and sending the fault drive signal to the fire extinguishing agent nozzle valve; and In response to the opening of the fire extinguishing agent nozzle valve, generating a valve drive signal and sending the valve drive signal to the fire extinguishing agent main valve.

8. The method according to claim 7, wherein, when the method is used to control multiple batteries, the fire extinguishing agent nozzle valves correspond to the batteries one by one, and the fault drive signal includes the battery identifier of the battery that has experienced thermal runaway.

9. The method according to claim 7 or 8, wherein, further includes: Based on the received feedback signal indicating whether the fire extinguishing agent nozzle valve is open, determining whether the fire extinguishing agent nozzle valve is open.

10. A control device for a battery, wherein, the device includes: An acquisition module configured to acquire thermal runaway information of the battery, where the thermal runaway information is used to characterize whether the battery has experienced thermal runaway, and the thermal runaway information includes at least one of the state parameters of the battery and the smoke concentration in the environment where the battery is located; A processing module configured to, in response to the thermal runaway information indicating that thermal runaway has occurred, generate and send a thermal runaway fault signal for the battery that has experienced thermal runaway to trigger a fire prevention and control operation for the battery that has experienced thermal runaway.

11. The device according to claim 10, wherein, the thermal runaway information includes the state parameters of the battery and its corresponding battery identifier; the processing module includes: A battery determination unit configured to, in response to the thermal runaway information indicating that thermal runaway has occurred, determine the battery that has experienced thermal runaway based on the thermal runaway information; A battery signal processing unit configured to generate and send a thermal runaway fault signal for the battery that has experienced thermal runaway, and the thermal runaway fault signal includes the battery identifier of the battery that has experienced thermal runaway.

12. The device according to claim 10, wherein, the battery is placed in an electrical box, and the number of electrical boxes is multiple. The thermal runaway information includes the smoke concentration in the electrical box and its corresponding electrical box identifier; the processing module includes: An electrical box determination unit configured to, in response to the thermal runaway information indicating that thermal runaway has occurred, determine the electrical box in which the battery that has experienced thermal runaway is placed based on the thermal runaway information; An electrical box signal processing unit configured to generate and send a thermal runaway fault signal for the battery that has experienced thermal runaway, and the thermal runaway fault signal includes the electrical box identifier of the electrical box in which the battery that has experienced thermal runaway is placed.

13. The device according to any one of claims 10 to 12, wherein, the state parameters include the voltage and temperature of the battery within a preset duration.

14. The device according to any one of claims 10 to 13, wherein, further includes: A thermal runaway determination module configured to, in response to the state parameters of the battery and the smoke concentration in the environment where the battery is located satisfying a preset condition, determine that the thermal runaway information of the battery indicates that thermal runaway has occurred.

15. The device according to any one of claims 10 to 14, characterized in that, the thermal runaway fault signal includes a fault driving signal and a valve driving signal, wherein the fault driving signal is used to drive the extinguishing agent nozzle valve to open, the valve driving signal is used to drive the main extinguishing agent valve to open, and the fire prevention and control operation includes opening the extinguishing agent nozzle valve and opening the main extinguishing agent valve; the processing module includes: a first driving signal processing unit configured to generate a fault driving signal and send the fault driving signal to the extinguishing agent nozzle valve; and a second driving signal processing unit configured to generate a valve driving signal and send the valve driving signal to the main extinguishing agent valve in response to the opening of the extinguishing agent nozzle valve.

16. The device according to claim 15, characterized in that, when the device is used to control a plurality of the batteries, the extinguishing agent nozzle valves correspond to the batteries one by one, and the fault driving signal includes the battery identifier of the battery with thermal runaway.

17. The device according to claim 15 or 16, characterized in that, further comprising: a valve determination unit configured to determine whether the extinguishing agent nozzle valve is open based on a received feedback signal indicating whether the extinguishing agent nozzle valve is open.

18. An electronic device, characterized in that, comprising: at least one processor; and at least one memory communicatively connected to the at least one processor, the at least one memory storing instructions that, when executed alone or jointly by the at least one processor, cause the computing device to perform the method according to any one of claims 1 to 9.

19. An electrical equipment, characterized in that, comprising a battery and the electronic device according to claim 18.

20. The electrical equipment according to claim 19, characterized in that, the electrical equipment includes a plurality of the batteries, and the electrical equipment further comprises: a plurality of extinguishing agent nozzle valves, the plurality of extinguishing agent nozzle valves corresponding to the positions of the plurality of batteries one by one, and the extinguishing agent nozzle valves being used to spray extinguishing agent on the corresponding batteries.

21. An energy storage device, characterized in that, comprising: an electrical box; a battery placed in the electrical box; and the electronic device according to claim 18.

22. The energy storage device according to claim 21, wherein, a plurality of batteries are placed in the electrical box, and the device further comprises: a plurality of extinguishing agent nozzle valves arranged in the electrical box, the plurality of extinguishing agent nozzle valves corresponding to the positions of the plurality of batteries one by one, and the extinguishing agent nozzle valves being used to spray extinguishing agent on the corresponding batteries.

23. A computer-readable storage medium, characterized in that, storing instructions that, when executed alone or jointly by one or more processors of a computing device, cause the computing device to perform the method according to any one of claims 1 to 9.

24. A computer program product, characterized in that, Comprising instructions which, when executed alone or jointly by one or more processors of a computing device, cause the computing device to perform the method according to any one of claims 1 to 9.

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