Modular device of multiple input-output portable battery storage system

Abstract

The present invention relates to a module-based portable battery storage device. A portable battery storage device according to one embodiment may include a first module that recognizes the total capacity of a battery pack comprising at least one battery and defines a power amount for each output terminal, and a second module that is electrically decoupled or coupled with the first module, and when coupled, provides a multiple input / output function for power from the battery pack based on the power amount defined for each output terminal.

Description

Technology Field

[0001] The present invention relates to a module-based multi-input / output portable battery storage device, and more specifically, to a modular-based multi-input / output portable battery storage device that facilitates production convenience by modularizing each function of the battery storage device and ultimately enables the separation of the battery pack, thereby facilitating easy replacement and management of the battery. Background Technology

[0002] As the performance of the battery itself improves and charging technology through power converters advances, it has become possible to manufacture portable battery storage devices that provide various input and output terminals while having a small and lightweight volume.

[0003] These portable battery storage devices are designed for outdoor use and can effectively supply power in situations where electricity supply is difficult, such as during camping trips or in developing countries.

[0004] It is a device that not only enables solar power generation by connecting foldable solar panels, but is also portable and mobile.

[0005] In terms of input power, the portable battery storage device can charge the battery using solar power, and since it also has AC and DC input terminals, it is possible to charge the battery through these methods depending on the situation.

[0006] In addition, in terms of output power, USB-A, USB-C, and standard DC jacks are all available to support various output terminals used with DC loads, and an automotive (cigarette lighter) adapter is also provided.

[0007] Since portable battery storage devices primarily utilize AC loads when using power above a certain level (hundreds of watts or more), they also provide AC output terminals for this purpose.

[0008] However, as portable battery storage devices are used frequently, continuous charging and discharging of the battery can cause battery aging.

[0009] When the battery and power converter, which are the main modules of a portable battery storage device, are designed as a single integrated unit, replacing only the aging battery is inefficient and inconvenient. Furthermore, although the device is intended to be portable, the large weight and volume of the battery make it more suitable to detach and transport the unit when the battery pack modules are designed to be detachable.

[0010] A typical portable battery storage device can be described by modularizing it as shown in Fig. 1.

[0011] Upon closer examination, a single board is used to perform power and battery management as well as battery connection functions, except for the I / O interface and the battery pack at the bottom. In this case, not only is it inconvenient to have to replace the entire board if any part fails, but it is also inefficient in terms of manufacturing and inventory management.

[0012] In particular, as shown in Figure 1, existing products are designed as a single integrated unit on a single substrate without modularization.

[0013] First, the PMS includes power converters (DC / DC, AC / DC, DC / AC) and, with the assistance of the I4B, regulates the desired power and voltage before transmitting it to the I4O. The I4B is directly connected to the removable battery pack; it receives battery information to enable plug-and-play functionality and performs the role of auto-configuration to meet specifications.

[0014] Furthermore, it is responsible for balancing the voltages between series and parallel connected batteries. The BMS checks the battery's voltage, current, and charge status, and transmits this information to the PMS so that it can be utilized for power control. However, in the existing structure, the battery pack, which occupies the largest weight and volume, is located at the bottom, and with the I4I and I4O positioned on both sides, the placement of multiple battery packs for parallel connections is inefficient. Additionally, modularization is difficult because the connections and functions of the PMS, BMS, and I4B are mixed together on a single PCB board. Prior art literature

[0015] Korean Registered Patent No. 10-2214352 "Portable Power Supply Device" Korean Published Patent No. 10-2022-0151347 "Portable Power Supply Device with Detachable / Replaceable Battery" Korean Published Patent No. 10-2007-0000563 "Charging Control Device and Method for Auxiliary Power Supply Device of Mobile Terminal" The problem to be solved

[0016] The present invention aims to provide a portable battery storage device that can be primarily used outdoors.

[0017] The present invention aims to provide a portable battery storage device applicable to nanogrid systems within homes / buildings when the power capacity of the portable battery storage device increases to tens of kilowatts or more in the future.

[0018] The present invention aims to efficiently manage and supervise the aging status of batteries by clearly defining the role of each module and introducing a Battery Identification Module (BIM).

[0019] The present invention aims to provide a modular-based multi-input / output portable battery storage device that facilitates production convenience by modularizing according to each function and ultimately enables the separation of the battery pack, thereby facilitating easy replacement and management of the battery. means of solving the problem

[0020] A portable battery storage device according to one embodiment may include a first module that recognizes the total capacity of a battery pack including at least one battery and defines a power amount for each output terminal, and a second module that is electrically decoupled or coupled with the first module, and when coupled, provides a multiple input / output function for power from the battery pack based on the power amount defined for each output terminal.

[0021] According to one embodiment, the first module may include a Battery Identification Module (BIM) that is decoupled or coupled with the battery pack.

[0022] The battery identification module (BIM) according to one embodiment can record and maintain at least one piece of information among the voltage of at least one battery, the voltage of the battery pack, capacity, series-parallel connection information, preferred charge / discharge C-rate information, type, manufacturer, place of production, production date, charge / discharge history, and State of Health (SoH).

[0023] According to one embodiment, the first module further includes a Battery Management System (BMS) that is decoupled or coupled with the battery pack, and the Battery Management System (BMS) may be connected in parallel with the Battery Identification Module (BIM).

[0024] According to one embodiment, the battery management module (BMS: Battery Management System) can record and maintain state of charge information (SoC: State of Charge) for at least one battery.

[0025] The battery management module (BMS: Battery Management System) according to one embodiment can maintain balance between cells by monitoring the voltage and current for each of the at least one battery cells.

[0026] According to one embodiment, the second module may include an input interface module (I4I: Interface for Input), an output interface module (I4O: Interface for Output), a power management module (PMS: ​​Power Management System), or a battery connection module (I4B: Interface for Battery Connection).

[0027] According to one embodiment, the input interface module (I4I: Interface for Input, 333) receives current or voltage from the outside, and the output interface module (I4O: Interface for Output, 334) can output current or voltage through a port or outlet as pre-designed.

[0028] The power management module (PMS) according to one embodiment can control the distribution of output voltage levels for each output terminal constituting the output interface module (I4O) based on information of the battery pack provided from the first module.

[0029] A portable battery storage device according to one embodiment may include: a battery adaptation module that identifies a battery pack or monitors the state of the battery pack in a form that is decoupled or coupled with the battery pack; a battery connection module that is implemented in a form that is decoupled or coupled with the battery adaptation module and collects identification information of the battery pack or state information of the battery pack when coupled; a battery power management module that is implemented in a form that is decoupled or coupled with the battery connection module and controls the distribution by controlling the level of the output voltage for each output terminal based on the identification information of the battery pack or the state information of the battery pack; and an input / output module that is implemented in a form that is decoupled or coupled with the battery power management module and transmits an external input transmitted through at least one input terminal to the battery power management module or outputs power provided from the battery power management module through at least one output terminal.

[0030] The battery adaptation module according to one embodiment may include a Battery Identification Module (BIM) that records and maintains at least one piece of information among the voltage of at least one battery, the voltage of the battery pack, capacity, series-parallel connection information, preferred charge-discharge C-rate information, type, manufacturer, place of production, production date, charge-discharge history, and State of Health (SoH); and a Battery Management System (BMS) that records and maintains State of Charge (SoC) information for at least one battery and maintains a balance between cells by monitoring the voltage and current for each cell of at least one battery. Effects of the invention

[0031] According to one embodiment, a portable battery storage device that can be primarily used outdoors can be provided.

[0032] According to one embodiment, if the power capacity of the mobile battery storage device increases to tens of kilowatts or more in the future, a mobile battery storage device applicable to a nanogrid system in a home / building can be provided.

[0033] According to one embodiment, the role of each module is clearly defined and a battery identification module (BIM) is introduced to efficiently manage and supervise the aging status of the battery.

[0034] According to one embodiment, a modular-based multi-input / output portable battery storage device can be provided that facilitates production by modularizing according to each function and ultimately enables the battery pack to be separated, thereby facilitating easy replacement and management of the battery. Brief explanation of the drawing

[0035] Figure 1 is a block diagram showing a modularized version of a conventional portable battery storage device. FIG. 2 is a drawing illustrating a portable battery storage device according to one embodiment. FIG. 3 is a block diagram showing a mobile battery storage device according to one embodiment, specifically modularized. FIG. 4 is a drawing specifically describing an input interface module and an output interface module according to one embodiment. FIG. 5 is a drawing illustrating a portable battery storage device according to another embodiment. Specific details for implementing the invention

[0036] Specific structural or functional descriptions of embodiments according to the concept of the present invention disclosed herein are provided merely for the purpose of explaining embodiments according to the concept of the present invention, and embodiments according to the concept of the present invention may be implemented in various forms and are not limited to the embodiments described herein.

[0037] Embodiments according to the concept of the present invention may be subject to various modifications and may take various forms; therefore, embodiments are illustrated in the drawings and described in detail in this specification. However, this is not intended to limit the embodiments according to the concept of the present invention to specific disclosed forms, and includes modifications, equivalents, or substitutions that fall within the spirit and scope of the present invention.

[0038] Terms such as "first" or "second" may be used to describe various components, but said components should not be limited by said terms. For the sole purpose of distinguishing one component from another, for example, without departing from the scope of rights according to the concept of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component.

[0039] When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. Conversely, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between. Expressions describing the relationships between components, such as "between," "exactly between," or "directly adjacent to," should be interpreted in the same way.

[0040] The terms used herein are used merely to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as “comprising” or “having” are intended to specify the existence of the described features, numbers, steps, actions, components, parts, or combinations thereof, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0041] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this specification.

[0043] Hereinafter, embodiments will be described in detail with reference to the attached drawings. However, the scope of the patent application is not limited or restricted by these embodiments. Identical reference numerals in each drawing indicate identical components.

[0044] FIG. 2 is a drawing illustrating a portable battery storage device (200) according to one embodiment.

[0045] The present invention includes a method for modularizing a portable battery storage device that provides multiple inputs and outputs, and a Battery Identification Module (BIM) for implementing the same.

[0046] By modularizing components according to each role and establishing a lineup based on various capacities and input / output port voltage levels / numbers, ease of production can be increased. In particular, the Battery Identification Module (BIM) can manage battery type, manufacturer, location, date, charge / discharge history, and State of Health (SoH), thereby enabling effective decoupled and coupled operations with the battery pack.

[0047] The portable battery storage device (200) according to one embodiment can be used mainly outdoors, and in the future, when the power capacity of the battery pack is increased to tens of kilowatts or more, it can be applied in a nanogrid system inside a home / building.

[0048] In addition, the mobile battery storage device (200) according to one embodiment clearly defines the role of each module and introduces a battery identification module (BIM) to efficiently manage and supervise the aging status of the battery, and can be implemented as a multi-input / output modular type that facilitates production convenience by modularizing according to each function and ultimately allows the battery pack to be separated, thereby making replacement and management of the battery easy.

[0049] To this end, each module included in the portable battery storage device (200) according to one embodiment has an interface that can be decoupled or coupled with each other.

[0050] More specifically, a portable battery storage device (200) according to one embodiment may include a first module (210) and a second module (220).

[0051] First, the first module (210) can recognize the total capacity of a battery pack (230) including at least one battery and define the power amount for each output terminal.

[0052] To this end, the first module (210) according to one embodiment is one of the important components of the mobile battery storage device (200) and can perform the function of a battery system.

[0053] The first module (210) performs various functions to manage the safe operation and optimal performance of the entire battery system. To this end, the first module (210) can recognize the total capacity of a battery pack containing at least one battery. This can be done by identifying the type, capacity, and condition of the battery, and can accurately calculate the total capacity by summing the capacities of each battery.

[0054] The first module (210) can also define the amount of power for each output terminal. It can accurately measure and manage the power provided from each output terminal, thereby optimizing the power distribution of the battery system.

[0055] Meanwhile, the first module (210) has various functions to ensure the safety of the battery system. This module can continuously monitor the temperature, voltage, current, etc. of the battery to detect problems such as overheating or overvoltage and respond to them.

[0056] In addition, the first module (210) can track the state of the battery and maintain optimal operating conditions for efficient energy management. This extends the battery's lifespan and enables the efficient use of energy.

[0057] The first module (210) can also interact with other parts through a communication interface. It may be responsible for data transmission and control with other modules within the battery system or external systems.

[0058] The second module (220) is electrically decoupled or coupled with the first module (210), and when coupled, it can provide multiple input / output functions for power from the battery pack (230) based on a power amount defined for each output terminal.

[0059] The second module (220) is one of the important components of the portable battery storage device (200) and can complement the function of the battery system.

[0060] The second module (220) can be electrically decoupled or coupled with the first module (210).

[0061] When the second module (220) is combined with the first module (210), the second module (220) can provide multiple input / output functions for power from the battery pack (230) based on a power amount defined for each output terminal.

[0062] First, the second module (220) operates in connection with the first module (210) and can be electrically separated or combined, which provides flexibility in power management and power supply, and allows for the selection of an optimal configuration depending on the use and requirements of the battery system.

[0063] When the second module (220) is combined with the first module (210), power from the battery pack (230) can be provided as multiple inputs and outputs based on the amount of power defined for each output terminal. Based on this, power required for various loads or devices can be efficiently provided.

[0064] In addition, the second module (220) can be used to continuously monitor the temperature, voltage, current, etc. of the battery to ensure the safety and efficiency of the battery system, and to detect and take action on problems such as overheating or overvoltage.

[0065] Additionally, the second module (220) can interact with other parts through a communication interface. That is, the second module (220) can perform data transmission and control with other modules within the battery system or with an external system.

[0066] FIG. 3 is a drawing (300) that specifically modularizes a portable battery storage device according to one embodiment and represents it as a block diagram.

[0067] Drawing reference numeral 310 represents a battery pack, drawing reference numeral 320 can be interpreted as a first module, and drawing reference numeral 330 as a second module.

[0068] First, the first module (320) according to one embodiment may include a battery management module (322) and a battery identification module (321).

[0069] The battery identification module (321) can be implemented in a form that is decoupled or coupled with the battery pack, and can record and maintain at least one piece of information among the voltage of at least one battery, the voltage of the battery pack, capacity, series-parallel connection information, preferred charge-discharge C-rate information, type, manufacturer, place of production, date of production, charge-discharge history, and State of Health (SoH).

[0070] The battery identification module (321) can identify and recognize the connected battery pack. This identifies the type, capacity, model, etc. of the battery, enabling the system to interact with the battery.

[0071] Additionally, the battery identification module (321) can continuously monitor the voltage and current of the battery pack to track the condition of the battery, thereby detecting problems such as overvoltage or overcurrent and taking appropriate measures.

[0072] The battery identification module (321) has security functions for the safety of the battery system, such as recognizing and blocking defective batteries or parts.

[0073] Specifically, the battery identification module (321) can receive battery pack information from the battery identification module (321) from the power management module (332) regardless of which battery pack (310) is used or the type or brand of the battery pack, and can implement multiple voltages that the portable battery storage device must output through the control of the power management module (332).

[0074] The battery management module (322) can be implemented in a form that is decoupled or coupled with the battery pack, and can record and maintain the State of Charge (SoC) for at least one battery. Additionally, it can be arranged in a structure connected in parallel with the Battery Identification Module (BIM).

[0075] Additionally, the battery management module (322) can maintain a balance between the cells by monitoring the voltage and current for each of at least one battery cell.

[0076] A second module (330) according to one embodiment may include a battery connection module (331), a power management module (332), an input interface module (333), and an output interface module (334).

[0077] The battery connection module (331) can be responsible for the connection between the battery pack (310) and the system, ensuring a safe connection and efficiently transmitting the battery's power.

[0078] The power management module (332) can manage and control the power of the entire system. In particular, it can maintain safe operation by monitoring voltage, current, frequency, etc.

[0079] Additionally, the power management module (332) can control the level of the output voltage for each output terminal constituting the output interface module (I4O: Interface for Output) based on the battery pack information provided from the first module.

[0080] The input interface module (I4I: Interface for Input, 333) receives current or voltage from an external source, and the output interface module (I4O: Interface for Output, 334) can output current or voltage through multiple ports or outlets according to the pre-design.

[0081] The power management module (332) can control and distribute the output voltage level for each output terminal constituting the output interface module (I4O: Interface for Output) based on the battery pack information provided from the first module.

[0082] FIG. 4 is a drawing (400) that specifically describes an input interface module and an output interface module according to one embodiment.

[0083] In this invention, since each component unit is configured in a modular manner, it not only facilitates cost and inventory management for the manufacturer but also makes it easy to establish a product lineup with various capacities. Additionally, because the substrates of each module can be configured in a layered format, a more compact design is possible.

[0084] I4I, an input interface module (333), is located on the left side, and I4O, an output interface module (334), is located on the right side. Below them, a power management module is connected to directly handle and transmit power. Below that, I4B, which is responsible for direct connection to the battery, is located. Therefore, a battery adaptation module, which combines a battery pack with a modular battery management module or a battery identification module, is attached to and detached from the second module through this I4B.

[0085] Figure 4 shows an example of a battery having various inputs and outputs.

[0086] In the example of a DC-input using 24VDC, a standard 24V voltage can be used to charge the battery. Additionally, after charging, a voltage of 5VDC can be output through the output interface module, and AC power can be output as well as 12VDC.

[0087] Regardless of which battery is applied to each product line on the production line, the total capacity of the battery is recognized through the battery identification module, and the power amount for each of the multiple output terminals is defined through the battery identification module, and distribution control is performed through the power management module.

[0088] In addition, even when using a 12V battery or a 48V battery, the battery voltage is checked through the battery identification module, and the voltages can be regulated to match multiple voltage levels of the output through the control (boost or step-down) of the power management module.

[0089] The battery identification module stores detailed information about batteries intended for general use, including voltage, capacity, series and parallel connection information, preferred charge / discharge C-rate information, type based on physicochemical characteristics (lithium-ion battery, lithium-polymer battery, lead-acid battery, etc.), manufacturer, place of production, production date, battery charge / discharge history, and details regarding the battery's State of Health (SoH). If the battery has a usage history, it is possible to determine whether it can be reused to some extent or if it is in a condition requiring disposal, based on its State of Health.

[0090] Depending on the battery's health status, the extent to which it can be reused can be determined by calculating the future usable period through a prediction algorithm that considers past usage patterns.

[0091] Conventional portable battery storage devices are equipped only with a battery management module; consequently, they manage only the State of Charge (SoC) information of a specific battery, making it difficult to ensure versatility, resulting in poor compatibility with other batteries, and making it difficult to determine the actual health status of the battery.

[0092] By incorporating the battery identification module of the present invention, connection is possible regardless of the battery pack from various manufacturers, or regardless of voltage level, power level, or battery type, thereby ensuring universality and contributing to the standardization of battery specifications, as well as enabling organic compatibility with various batteries developed in the future.

[0093] Based on the information from the battery identification module, it is possible to accumulate information on a wide variety of battery lineups and specifications.

[0094] By using the portable battery storage device of the present invention, it is possible to use electricity through the power stored in the battery in places where power supply is difficult.

[0095] There are solar power generation terminals capable of supplying eco-friendly new and renewable energy, and foldable solar panels can be connected and used in accordance with the concept of a portable battery storage device.

[0096] Multiple output terminals can be designed to support various DC voltage levels and multiple port specifications.

[0097] In addition, it includes an AC voltage terminal so that existing AC loads can also be connected and used. Therefore, the portable battery storage device according to the present invention can be directly applied to a nanogrid system.

[0098] A system equipped with only DC output terminals is a DC nanogrid system, while one equipped with both DC and AC output terminals is a hybrid nanogrid system. In line with the concept of grid modernization, this enables the acceleration and technological advancement of DC Smart Grid and DC Nanogrid systems.

[0099] Furthermore, modular mobile battery storage devices can maximize productivity for producers, facilitate flexible inventory management, and enable the establishment of product lines, making them suitable for mass production.

[0100] While existing power systems could only operate with specific batteries, the application of a battery identification module enables smarter recognition and use of batteries from various manufacturers.

[0101] The battery identification module not only collects manufacturing and usage information but also possesses the function to determine the battery's aging status (State of Health). Therefore, accidents or power outages can be prevented by replacing the battery with a new one before it ages and causes problems. Since the battery pack is detachable within the modular design, it can be removed for portability or movement, allowing for convenient and lightweight use.

[0102] FIG. 5 is a drawing illustrating a portable battery storage device (500) according to another embodiment.

[0103] A portable battery storage device (500) according to one embodiment may include a battery adaptation module (510), a battery connection module (520), a battery power management module (530), and an input / output module (540).

[0104] First, the battery adaptation module (510) can identify the battery pack or monitor the state of the battery pack in a form that is decoupled or coupled with the battery pack.

[0105] The battery connection module (520) is implemented in a form that is decoupled or coupled with the battery adaptation module (510), and when coupled, it can collect identification information of the battery pack or status information of the battery pack.

[0106] The battery power management module (530) can control the distribution by controlling the level of the output voltage for each output terminal based on the identification information of the battery pack or the status information of the battery pack.

[0107] The input / output module (540) can transmit an external input transmitted through at least one input terminal to the battery power management module (530), or output power provided from the battery power management module (530) through at least one output terminal.

[0108] In particular, the battery adaptation module (510) may include a battery identification module (BIM: Battery Identification Module) and a battery management module (BMS: Battery Management System).

[0109] The Battery Identification Module (BIM) can record and maintain at least one piece of information among the voltage of at least one battery, the voltage of the battery pack, capacity, series and parallel connection information, preferred charge / discharge C-rate information, type, manufacturer, place of production, production date, charge / discharge history, and State of Health (SoH).

[0110] Additionally, the battery management system (BMS) may include a battery management system that records and maintains state of charge (SoC) information for at least one battery, and monitors the voltage and current for each of the at least one battery cells to maintain balance among the cells.

[0111] Ultimately, the present invention provides a portable battery storage device that can be primarily used outdoors, and if the power capacity of the portable battery storage device increases to tens of kilowatts or more in the future, it provides a portable battery storage device applicable to nanogrid systems within homes or buildings.

[0112] In addition, by clearly defining the role of each module and introducing a Battery Identification Module (BIM), the aging status of the battery can be efficiently managed and supervised. Furthermore, by modularizing according to each function to promote production convenience and ultimately enabling the separation of the battery pack, a modular-based multi-input / output portable battery storage device can be provided that facilitates easy replacement and management of the battery.

[0114] The device described above may be implemented as a hardware component, a software component, and / or a combination of a hardware component and a software component. For example, the device and components described in the embodiments may be implemented using one or more general-purpose or special-purpose computers, such as, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable array (FPA), a programmable logic unit (PLU), a microprocessor, or any other device capable of executing and responding to instructions. The processing unit may execute an operating system (OS) and one or more software applications executed on said operating system. Additionally, the processing unit may access, store, manipulate, process, and generate data in response to the execution of the software. For ease of understanding, the processing unit may be described as being used as a single unit, but those skilled in the art will understand that the processing unit may include multiple processing elements and / or multiple types of processing elements. For example, the processing unit may include multiple processors or one processor and one controller. In addition, other processing configurations, such as parallel processors, are also possible.

[0115] Software may include computer programs, code, instructions, or a combination of one or more of these, and may configure a processing unit to operate as desired or command the processing unit independently or collectively. Software and / or data may be permanently or temporarily embodied in any type of machine, component, physical device, virtual equipment, computer storage medium or device, or transmitted signal wave so as to be interpreted by the processing unit or to provide instructions or data to the processing unit. Software may be distributed over networked computer systems and may be stored or executed in a distributed manner. Software and data may be stored on one or more computer-readable recording media.

[0116] Although the embodiments have been described above with reference to the limited drawings, those skilled in the art can make various modifications and variations from the description above. For example, suitable results can be achieved even if the described techniques are performed in a different order than described, and / or the components of the described system, structure, device, circuit, etc. are combined or assembled in a form different from described, or replaced or substituted by other components or equivalents.

[0117] Therefore, other implementations, other embodiments, and equivalents to the claims also fall within the scope of the claims set forth below. Explanation of the symbols

[0118] 200: Portable battery storage device 210: Module 1 220: Module 2 230: Battery pack

Claims

Claim 1 A method for controlling the output of a portable battery storage device, wherein a Battery Identification Module (BIM) that is separated from or coupled with a battery pack records and maintains at least one piece of information among the voltage of at least one battery, the voltage of the battery pack, capacity, series-parallel connection information, preferred charge / discharge C-rate information, type, manufacturer, place of production, production date, charge / discharge history, and State of Health (SoH); when the battery pack is coupled to the portable battery storage device, the method comprises: a step of collecting identification information or state information of the battery pack; a step of determining a target output voltage level for each of a plurality of output terminals based on the recorded and maintained information and the identification information or state information; and a step of performing boost or buck control according to the difference between the voltage of the battery pack and the target output voltage level to distribute and output power corresponding to the plurality of output terminals. Claim 2 A method for controlling the output of a portable battery storage device according to claim 1, wherein the step of determining the target output voltage level is performed using at least the voltage of the battery, the voltage of the battery pack, and the series-parallel connection information among the information recorded and maintained in the battery identification module. Claim 3 A method for controlling the output of a portable battery storage device according to claim 1, wherein the step of performing the boost or buck control is performed by comparing the voltage of the battery pack with one or more preset reference voltages and providing a plurality of different output voltage levels according to the result of the comparison, and wherein the reference voltage includes at least one of 12V and 48V. Claim 4 A method for controlling the output of a portable battery storage device according to claim 1, wherein the plurality of output terminals includes a plurality of DC output terminals, and the step of distributing output is performed to provide power of different voltage levels to the plurality of DC output terminals. Claim 5 A method for controlling the output of a portable battery storage device according to claim 1, wherein the step of collecting identification information or state information of the battery pack further includes the step of collecting state of charge (SoC) information for at least one battery and voltage and current information for each of the at least one battery cells from a battery management system (BMS) connected in parallel with the battery identification module. Claim 6 A portable battery storage device comprising a battery pack including at least one battery, implemented in a form that is decoupled or coupled, and a battery identification module (BIM) that records and maintains at least one piece of information among the voltage of the at least one battery, the voltage, capacity, series-parallel connection information, preferred charge-discharge C-rate information, type, manufacturer, place of production, production date, charge-discharge history, and State of Health (SoH), and determines whether the battery pack is reusable or when to replace it based on the charge-discharge history and the State of Health (SoH).

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