Battery system and charge / discharge control method thereof

Abstract

To provide a battery system capable of restricting charge / discharge of the battery system by detecting, in advance, battery modules of different specifications from each other or a battery module containing defective battery cells.SOLUTION: A battery system according to one embodiment may include a plurality of battery modules electrically connected to each other, and a first control unit to: obtain module identification information for each of the plurality of battery modules from a memory provided in each of the plurality of battery modules; receive battery module information including specification information for each of the plurality of battery modules from an external server by using the module identification information; and restrict charge / discharge of the plurality of battery modules according to the battery module information.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present disclosure relates to a battery system and a method for controlling charging and discharging the battery system. [Background technology]

[0002] Secondary batteries differ from primary batteries, which only provide irreversible conversion of chemicals into electrical energy, in that they can be repeatedly charged and discharged. Low-capacity secondary batteries are used as power sources for small electronic devices such as mobile phones, laptops, and camcorders, while high-capacity secondary batteries are used as power sources for energy storage systems (ESS) and uninterruptible power supply (UPS) systems that use medium- to large-sized batteries for electric vehicles (EVs), hybrid vehicles (HVs), or household or industrial use.

[0003] In general, a secondary battery cell includes an electrode assembly including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode, a case that houses the electrode assembly, and an electrode terminal that is electrically connected to the electrode assembly. An electrolyte is injected into the case to enable charging and discharging of the battery cell through an electrochemical reaction between the positive electrode, the negative electrode, and the electrolyte solution. The shape of the case, such as a cylindrical or rectangular shape, varies depending on the application of the battery cell.

[0004] The battery cells may be connected in series and / or parallel to each other to form a battery module having high energy density, and the battery modules may be connected in series and / or parallel to each other to form a battery pack, a battery rack, etc. according to required specifications.

[0005] During the process of assembling battery modules or during the process of replacing or repairing battery modules, cases may occur where battery modules with different specifications (e.g. capacity, active material, internal resistance, charge / discharge voltage curve, etc.) are included within one battery pack / battery rack. In addition, there may be cases where battery modules containing defective battery cells that occurred during the manufacturing process are not collected but are instead discharged and used in battery packs / battery racks. In this way, battery packs / battery racks that use battery modules containing mixed battery modules with different specifications or battery modules containing defective battery cells may cause safety issues during charging / discharging, so charging / discharging must be restricted. Summary of the Invention [Problem to be solved by the invention]

[0006] An object of the embodiment is to provide a battery system and a charge / discharge control method thereof that can detect in advance when battery modules of different specifications are mixed in the battery system or when a battery module including a defective battery cell is included, and limit the charge / discharge of the battery system. [Means for solving the problem]

[0007] According to one embodiment of the present invention, a battery system for solving the above problems may include a plurality of battery modules electrically connected to each other, and a first control device that acquires module identification information of each of the plurality of battery modules from a memory provided in each of the plurality of battery modules, receives battery module information including specification information of each of the plurality of battery modules from an external server using the module identification information, and limits charging / discharging of the plurality of battery modules according to the battery module information.

[0008] The first control device can detect a battery module having different specifications among the plurality of battery modules based on the battery module information, and can prohibit charging and discharging of the plurality of battery modules when a battery module having different specifications is detected.

[0009] The specification information may include at least one of a capacity, an active material, and a charge / discharge characteristic of the corresponding battery module.

[0010] The first control device acquires status information for each of the plurality of battery modules, and when it is determined that all of the plurality of battery modules have the same specifications, it can control charging and discharging of the plurality of battery modules based on the status information.

[0011] The status information may include information on at least one of a voltage, a temperature, and a current of the corresponding battery module.

[0012] The battery module information may further include inspection result information of the corresponding battery module.

[0013] The first control device detects a battery module including a defective battery cell among the plurality of battery modules based on the battery module information, and can prohibit charging and discharging of the plurality of battery modules when a battery module including the defective battery cell is detected.

[0014] The inspection result information may be information obtained during manufacturing of the plurality of battery modules.

[0015] The battery module information may further include usage history information of the corresponding battery module.

[0016] The first control device may update usage history information of the plurality of battery modules stored in the external server by using the module identification information.

[0017] Each of the plurality of battery modules may include the memory for storing the module identification information, and a second control device for acquiring status information of each of the plurality of battery modules and transmitting the status information or the module identification information to the first control device.

[0018] The memory may be an EEPROM.

[0019] According to one embodiment, a charge / discharge control method for a battery system including a plurality of battery modules electrically connected to each other may include a step of acquiring module identification information of each of the plurality of battery modules from a memory provided in each of the plurality of battery modules, receiving battery module information including specification information of each of the plurality of battery modules from an external server using the module identification information, and limiting charging / discharging of the plurality of battery modules according to the battery module information.

[0020] The restricting step may include detecting a battery module having different specifications among the plurality of battery modules based on the battery module information, and prohibiting charging / discharging of the plurality of battery modules when the battery module having different specifications is detected.

[0021] In the charge / discharge control method, the specification information may include at least one of a capacity, an active material, and a charge / discharge characteristic of the corresponding battery module.

[0022] The charge / discharge control method may further include acquiring status information for each of the battery modules. The limiting step may further include controlling the charge / discharge of the battery modules based on the status information when it is determined that the battery modules are all of the same specification. The status information may include information on at least one of a voltage, a temperature, and a current of a corresponding battery module.

[0023] In the charge / discharge control method, the battery module information may further include inspection result information of the corresponding battery module. The limiting step may include detecting a battery module including a defective battery cell among the plurality of battery modules based on the battery module information, and prohibiting charging / discharging of the plurality of battery modules when the battery module including the defective battery cell is detected.

[0024] In the charge / discharge control method, the inspection result information may be information obtained during manufacturing of the plurality of battery modules.

[0025] In the charge / discharge control method, the battery module information may further include usage history information of a corresponding battery module. The charge / discharge control method may further include updating usage history information of the plurality of battery modules stored in the external server using the module identification information. Effect of the Invention

[0026] According to the embodiment, when battery modules of different specifications are mixed in a battery system or a battery module including a defective battery cell is included, this can be detected in advance and charging / discharging of the battery system can be restricted to prevent the occurrence of safety issues. [Brief description of the drawings]

[0027] [Figure 1] 1 illustrates a schematic of a battery system according to one embodiment. [Diagram 2] 1 illustrates a schematic diagram of a battery module according to one embodiment. [Diagram 3] 1 illustrates a method for controlling charging and discharging of a battery system according to an embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0028] Hereinafter, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. Hereinafter, the effects of the embodiments of the present invention and methods for implementing the same will be described with reference to the accompanying drawings. In the drawings, the same reference numerals indicate the same elements, and duplicated descriptions will be omitted. However, the present invention may be embodied in various forms and should not be construed as being limited to the embodiments illustrated herein. Rather, these embodiments are provided as examples so that this disclosure will be thorough and complete, and will fully convey aspects and features of the present invention to those skilled in the art.

[0029] Therefore, processes, elements, and techniques that are not considered necessary for a person skilled in the art to fully understand the aspects and features of the present invention may not be described. In the drawings, the relative sizes of elements, layers, and regions may be exaggerated for clarity.

[0030] As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. Also, when describing embodiments of the present invention, the use of "may" means "one or more embodiments of the present invention." In the following description of embodiments of the present invention, terms in the singular form can include the plural form unless the context clearly dictates otherwise.

[0031] It will be understood that although terms including ordinal numbers such as "first," "second," and "third" are used to describe various elements, the elements should not be limited by these terms. The terms are used only to distinguish one element from another. For example, a first element may be named a second element, and similarly, a second element may be named a first element, without departing from the scope of the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. A phrase such as "at least one" preceding a list of elements modifies the entire list of elements, and not the individual elements of the list.

[0032] As used herein, the terms "substantially," "about," and similar terms are used as terms of approximation, not as terms of degree, and are intended to describe inherent deviations in measured or calculated values ​​that may be recognized by those of ordinary skill in the art. Also, when the term "substantially" is used in conjunction with a characteristic that may be expressed using a numerical value, the term "substantially" indicates a range of + / - 5% of the value centered on that numerical value.

[0033] When a component or layer is described as being "on," "connected," or "bonded" to another component or layer, "on," "connected," and "bonded" include both directly and via one or more other components or layers. Also, when a component or layer is described as being "between" two components or layers, it should be understood that it may be the only component or layer between the two components or layers, or that there may be one or more intervening other components or layers.

[0034] Electrically connecting two components includes not only directly connecting the two components, but also connecting the two components via another component between them. The other component may include a switch, a resistor, a capacitor, etc. In describing the embodiments, the expression "connected" means "electrically connected" unless there is an expression "directly connected."

[0035] FIG. 1 illustrates a battery system according to one embodiment, and FIG. 2 illustrates a battery module according to one embodiment.

[0036] 1, a battery system 1 according to an embodiment may include a plurality of battery modules 10-1, 10-2, . . . , 10-n and a main controller 20.

[0037] The battery modules 10-1, 10-2, ..., 10-n may be electrically connected to each other in series and / or parallel. Referring to Fig. 2, each battery module 10 may include a plurality of battery cells 11-1, 11-2, ..., 11-n and a module management device 12.

[0038] The multiple battery cells 11-1, 11-2, . . . , 11-n may be electrically connected to each other in series and / or parallel.

[0039] The module management device 12 may monitor the states (cell voltage, temperature, current, etc.) of the multiple battery cells 11-1, 11-2, ..., 11-n, and transmit status information collected through the monitoring to the main controller 20. The module management device 12 may include a controller 121 and a storage device 122.

[0040] The control device 121 can detect status information of the battery cells 11-1, 11-2, ..., 11-n included in the corresponding battery module 10. The control device 121 can transmit the detected status information to the main control device 20. The control device 121 can also obtain module identification information of the corresponding battery module 10 from the storage device 122 and transmit it to the main control device 20. The status information or module identification information of each battery module 10 can be transmitted to the main control device 20 in a daisy chain manner.

[0041] The storage device 122 may include a volatile memory such as a random access memory (RAM). The volatile memory may temporarily store status information acquired by the control device 121. The storage device 122 may also include a non-volatile memory such as an electrically erasable and programmable read only memory (EEPROM). The non-volatile memory may store module identification information of the battery module 10. A manufacturer may store the identification information of the battery module 10 in the non-volatile memory of the storage device 122 during manufacturing of the battery module 10 and then ship the battery module 10.

[0042] The module management device 12 may be a battery management system (BMS) mounted in each battery module 10. Furthermore, the control device 121 may be an analog front end (AFE) included in the BMS.

[0043] 1 again, the main controller 20 can communicate with the controllers 121 of the battery modules 10-1, 10-2, ..., 10-n to collect status information from the battery modules 10-1, 10-2, ..., 10-n. The main controller 20 can control charging and discharging of the battery modules 10-1, 10-2, ..., 10-n based on the status information collected from the battery modules 10-1, 10-2, ..., 10-n.

[0044] The main control device 20 can also receive module identification information of each battery module from the battery modules 10-1, 10-2, ..., 10-n. The main control device 20 can receive battery module information of the battery modules 10-1, 10-2, ..., 10-n that configure the battery system 1 from the manufacturer's server 3 based on the received module identification information.

[0045] The battery module information may include capacity information of the corresponding battery module. The battery module information may further include information on the capacity, active material (positive electrode, negative electrode, electrolyte, etc.), charge / discharge characteristics (internal resistance, charge / discharge voltage curve, etc.), and presence or absence of defects of the battery cells constituting the corresponding battery module. The battery module information may further include usage history information (charge / discharge count, lifespan, defect detection information, location information, etc.) of the corresponding battery module. The battery module information may be configured based on specification information (capacity, active material, charge / discharge characteristics, etc.) and inspection result information (e.g., presence or absence of detection of defective battery cells) acquired during the manufacturing process of the battery modules 10-1, 10-2, ..., 10-n. In addition, the battery module information may also be configured based on history information (charge / discharge count, lifespan, defect detection information, location information, etc.) acquired from the battery system 1 in which the battery modules 10-1, 10-2, ..., 10-n are installed.

[0046] The main control device 20 can directly transmit the identification information of the battery modules 10-1, 10-2, ..., 10-n to the manufacturer's server 3 and receive the battery module information of the battery modules 10-1, 10-2, ..., 10-n in response to the transmission. The main control device 20 can also transmit the identification information of the battery modules 10-1, 10-2, ..., 10-n to the manufacturer's server 3 through an external device of the battery system 1 or a device in which the battery system 1 is installed, and receive the battery module information of the battery modules 10-1, 10-2, ..., 10-n from the manufacturer's server 3. For example, if the battery system 1 is a battery rack constituting an energy storage system (ESS), the main controller 20 may transmit identification information of the battery modules 10-1, 10-2, ..., 10-n to the manufacturer's server 3 through an energy management system (EMS) (not shown) and receive battery module information of the battery modules 10-1, 10-2, ..., 10-n from the manufacturer's server 3. Also, for example, if the battery system 1 is a battery pack mounted on an electric vehicle, the main controller 20 may transmit identification information of the battery modules 10-1, 10-2, ..., 10-n to the manufacturer's server 3 through an electronic control unit (ECU) (not shown) of the vehicle or a control unit (not shown) of a charging station and receive battery module information of the battery modules 10-1, 10-2, ..., 10-n from the manufacturer's server 3.

[0047] The main control device 20 can determine whether the specifications (capacity, charge / discharge characteristics, active material, etc.) of the battery modules 10-1, 10-2, ..., 10-n constituting the battery system 1 are the same based on the battery module information received from the manufacturer's server 3. In addition, the main control device 20 can also determine whether any of the battery modules 10-1, 10-2, ..., 10-n constituting the battery system 1 includes a battery cell that has been determined to be defective during the manufacturing process or use of the battery module, based on the received battery module information.

[0048] If the main control device 20 determines that one of the battery modules 10-1, 10-2, ..., 10-n has a battery module with specifications different from those of the other battery modules or that a battery module contains a defective battery cell, the main control device 20 can cut off charging and discharging of the battery system 1 and restrict the use of the battery system 1.

[0049] When battery modules having different capacities, active materials, charge / discharge characteristics, etc. are connected and used, charging / discharging is possible, but safety problems may occur during charging / discharging. Therefore, the main control device 20 can check the battery module information of the battery modules 10-1, 10-2, ..., 10-n before starting charging / discharging the battery system 1, and can prohibit charging / discharging if a battery module with different specifications exists. There are cases where a battery module including a defective battery cell generated during a manufacturing process is not collected and is sold, or a battery module including a battery cell determined to be defective during use is not collected and is distributed. When charging / discharging is performed while a defective battery cell is included, safety problems may occur in the battery system 1. Therefore, the main control device 20 can check the battery module information of the battery modules 10-1, 10-2, ..., 10-n before starting charging / discharging the battery system 1, and can prohibit charging / discharging if a battery module including a defective battery cell exists.

[0050] If the main control device 20 determines that any of the battery modules 10-1, 10-2, ..., 10-n has a battery module with specifications different from those of the other battery modules or that any battery module includes a defective battery cell, the main control device 20 may transmit warning information to a higher-level control device (e.g., an ECU of an electric vehicle) advising against charging or operating the corresponding battery system 1.

[0051] The main control device 20 can detect a defective battery cell in which an abnormal state such as an internal short circuit has occurred based on the status information collected from the battery modules 10-1, 10-2, ..., 10-n. When a defective battery cell is detected, the main control device 20 can update the battery module information of the corresponding battery module by transmitting identification information of the battery module in which the defective battery cell has been detected and detection information of the defective battery cell to the manufacturer's server 3. The main control device 20 can also transmit the number of charge / discharge cycles, life span, defect detection information, etc. obtained during the use of the battery modules 10-1, 10-2, ..., 10-n together with the module identification information of each battery module 10-1, 10-2, ..., 10-n to the manufacturer's server 3 so that the usage history information of the battery modules 10-1, 10-2, ..., 10-n stored in the manufacturer's server 3 is updated. When the battery system 1 is mounted on an apparatus (e.g., an electric vehicle) or installed in a predetermined location, the main control device 20 can also update the corresponding battery module information by transmitting location information capable of identifying the locations of the battery modules 10-1, 10-2, ..., 10-n to the manufacturer server 3 together with the module identification information of each battery module 10-1, 10-2, ..., 10-n.

[0052] 3 is a schematic diagram showing a method for controlling charging and discharging of the battery system 1 according to an embodiment. The method for controlling charging and discharging of the battery system 1 shown in FIG. 3 may be performed by the main controller 20 of the battery system 1 described with reference to FIG.

[0053] 3, the main controller 20 may acquire module identification information of each battery module 10 from the battery modules 10 constituting the battery system 1 (S11). The module identification information may be stored in a storage device 122 (e.g., an EEPROM) of the module management device 12 when the battery modules 10 are shipped. The main controller 20 may receive the module identification information stored in the storage device 122 from the module management device 12 of each battery module 10.

[0054] When the main control device 20 acquires the module identification information from the battery modules 10, the main control device 20 can acquire battery module information corresponding to each battery module 10 from the manufacturer server 3 based on the module identification information (S12). That is, the main control device 20 can directly or indirectly transmit the module identification information acquired from the battery modules 10 to the manufacturer server 3 and receive battery module information from the manufacturer server 3 as a response thereto.

[0055] The manufacturer of the battery modules 10 may store and manage specification information (capacity, active material, charge / discharge characteristics, etc.) of each battery module 10 acquired during the manufacture of each battery module 10, inspection result information (e.g., whether or not a defective battery cell has been detected), etc., in the manufacturer's server 3. In addition, the manufacturer may continuously collect usage history information (number of charge / discharge cycles, lifespan, whether or not a defect has been detected, device identification information, location information, etc.) of each battery module 10 from the battery system 1 in which the battery modules 10-1, 10-2, ..., 10-n are mounted, and update the battery module information stored in the manufacturer's server 3 based on the collected information.

[0056] The main control device 20 can detect a battery module having a different specification from the other battery modules among the battery modules 10 constituting the battery system 1 based on the battery module information acquired from the manufacturer's server 3 (S13). That is, the main control device 20 can detect a battery module having a different specification among the battery modules 10 by comparing the battery module information of each battery module 10 with each other.

[0057] Furthermore, the main control device 20 can detect a battery module including a defective battery cell among the battery modules 10 constituting the battery system 1 based on the battery module information acquired from the manufacturer's server 3 (S14). That is, the main control device 20 can check the battery module information of each battery module 10 to determine whether or not a defective battery cell is included.

[0058] When the main control device 20 detects a battery module 10 whose specifications are different from those of the other battery modules or that includes a defective battery cell, the main control device 20 can cut off charging and discharging of the battery system 1 to restrict the use of the battery system 1 (S15).

[0059] On the other hand, if all the battery modules 10 constituting the battery system 1 have the same specifications and there is no battery module including a defective battery cell among the battery modules 10, the main control device 20 can control the charging and discharging of the battery modules 10 based on the status information collected from the battery modules 10 (S16). In addition, when the battery modules 10 are charged or discharged, the main control device 20 can update the usage history information of each battery module 10 stored in the manufacturer's server 3 using the module identification information of each battery module 10 (S17). In other words, when the battery modules 10 are charged or discharged, the main control device 20 can update the usage history information of each battery module 10 stored in the manufacturer's server 3 by transmitting the number of times of charging and discharging, etc., together with the module identification information of each battery module 10 to the manufacturer's server 3.

[0060] The electronic or electrical devices according to the embodiments described herein and / or any other related devices or components may be implemented using any suitable hardware, firmware (e.g., application-specific integrated circuits), software, or a combination of software, firmware, and hardware. For example, the various components of the devices may be formed on a single integrated circuit (IC) chip or on separate IC chips. Also, the various components of the devices may be implemented on a flexible printed circuit film, a tape carrier package (TCP), a printed circuit board (PCB), or on a single substrate. The electrical connections or interconnections described herein may be implemented, for example, by traces or conductive elements on a PCB or other type of circuit carrier. The conductive elements may include, for example, metallizations, such as surface metallizations, and / or pins, and may include conductive polymers or ceramics. Electrical energy may also be transmitted through wireless connections, for example, using electromagnetic radiation or light.

[0061] Additionally, the various components of these devices may be processes or threads that run on one or more processors, execute computer program instructions within one or more computing devices, and interact with other system components to perform the various functions described herein. The computer program instructions are stored in memory, which may be embodied in the computing device using standard memory devices, such as random access memory (RAM). The computer program instructions may also be stored on other non-transitory computer readable media, such as CD-ROMs, flash drives, and the like.

[0062] Additionally, those skilled in the art should recognize that functionality of various computing devices may be combined or integrated into a single computing device, or functionality of a particular computing device may be distributed across one or more other computing devices without departing from the scope of exemplary embodiments of the invention.

[0063] Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements made by those skilled in the art using the basic concept of the present invention defined in the claims also fall within the scope of the present invention. [Explanation of symbols]

[0064] 1: Battery system 10, 10-1, 10-2, ..., 10-n: battery module 11-1, 11-2, ..., 11-n: battery cells 12: Module management device 121: Control device 122: Storage device 20: Main control unit 3: Manufacturer server

Claims

1. a plurality of battery modules electrically connected to each other; a first control device that acquires module identification information of each of the plurality of battery modules from a memory provided in each of the plurality of battery modules, receives battery module information including specification information of each of the plurality of battery modules from an external server using the module identification information, and limits charging / discharging of the plurality of battery modules according to the battery module information.

2. 2. The battery system of claim 1, wherein the first control device detects a battery module having different specifications among the plurality of battery modules based on the battery module information, and prohibits charging / discharging of the plurality of battery modules when the battery module having different specifications is detected.

3. The battery system according to claim 2 , wherein the specification information includes at least one of a capacity, an active material, and a charge / discharge characteristic of the corresponding battery module.

4. the first control device acquires status information for each of the plurality of battery modules, and when it is determined that all of the plurality of battery modules have the same specifications, controls charging and discharging of the plurality of battery modules based on the status information; The battery system of claim 2 , wherein the status information includes information on at least one of a voltage, a temperature, and a current of a corresponding battery module.

5. The battery module information further includes inspection result information of the corresponding battery module; 2. The battery system of claim 1, wherein the first control device detects a battery module including a defective battery cell among the plurality of battery modules based on the battery module information, and prohibits charging and discharging of the plurality of battery modules when a battery module including the defective battery cell is detected.

6. The battery system according to claim 5 , wherein the inspection result information is information obtained during manufacturing of the plurality of battery modules.

7. The battery module information further includes usage history information of the corresponding battery module; The battery system of claim 5 , wherein the first control device updates usage history information of the plurality of battery modules stored in the external server by using the module identification information.

8. Each of the plurality of battery modules is the memory storing the module identification information; and The battery system of claim 1 , further comprising: a second control device that acquires status information of each of the plurality of battery modules and transmits the status information or the module identification information to the first control device.

9. 9. The battery system of claim 8, wherein the memory is an EEPROM.

10. A method for controlling charging and discharging of a battery system including a plurality of battery modules electrically connected to each other, comprising: acquiring module identification information of each of the plurality of battery modules from a memory provided in each of the plurality of battery modules; receiving battery module information including specification information of each of the plurality of battery modules from an external server using the module identification information; and The charge / discharge control method includes limiting charge / discharge of the plurality of battery modules according to the battery module information.

11. The limiting step comprises: detecting a battery module having a different specification from the plurality of battery modules based on the battery module information; and The method of claim 10, further comprising the step of prohibiting charging and discharging of the plurality of battery modules when the battery modules having different specifications are detected.

12. The charge / discharge control method according to claim 11 , wherein the specification information includes at least one of a capacity, an active material, and a charge / discharge characteristic of the corresponding battery module.

13. acquiring status information for each of the plurality of battery modules; The limiting step comprises: If it is determined that the battery modules are all of the same specification, controlling charging / discharging of the battery modules based on the status information, The method of claim 11 , wherein the state information includes information on at least one of a voltage, a temperature, and a current of the corresponding battery module.

14. The battery module information further includes inspection result information of the corresponding battery module; The limiting step comprises: detecting a battery module including a defective battery cell among the plurality of battery modules based on the battery module information; and The method of claim 10 , further comprising the step of inhibiting charging and discharging of the battery modules when a battery module including the defective battery cell is detected.

15. The charge / discharge control method according to claim 14 , wherein the inspection result information is information obtained during manufacturing of the plurality of battery modules.

16. The battery module information further includes usage history information of the corresponding battery module; The method of claim 10, further comprising updating usage history information of the battery modules stored in the external server by using the module identification information.

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