Battery type determination device and battery type determination method

Abstract

The present invention provides a battery type determination device and a battery type determination method for determining the type of a battery without installing a component for identification. A battery type determination device, wherein the battery type determination device comprises: an output control unit that instructs a current application circuit to apply a specific current to a target battery; a voltage response measurement unit that measures the voltage response of the target battery to the current applied by the output control unit; a calculation unit that calculates the inductance value of the target battery based on the current value applied by the output control unit and the voltage value measured by the voltage response measurement unit; and a determination unit that determines the type of the target battery based on a specified value of the inductance corresponding to the type of the target battery and the inductance value of the target battery calculated by the calculation unit.

Description

Technical Field

[0001] The present invention relates to a storage battery type determination device and a storage battery type determination method. Background Art

[0002] Conventionally, there is a known method for identifying the type of a battery based on the DC internal resistance of the battery during charging and the DC internal resistance of the battery during discharging (see, for example, Patent Document 1). In such a method, a resistor having a predetermined resistance value is pre-installed in the battery, and the resistance value is measured during identification to thereby determine the type of the battery. In addition, there is also a method in which an IC chip is pre-installed in the battery and the type of the battery is determined based on an identification signal output by the IC chip.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: International Publication No. 2015 / 133068 Summary of the invention

[0006] Problems to be solved by the invention

[0007] Yet, in the prior art, need to install components such as resistor, IC chip in storage battery, therefore cost.In addition, if these components are imitated, then after being installed in the storage battery of non-intention, can not correctly identify the category of storage battery.

[0008] The present invention has been made in consideration of such a situation, and one of its objects is to determine the type of a storage battery without installing any component for identification.

[0009] Solutions to Solve Problems

[0010] The battery type determination device and battery type determination method of the present invention employ the following configurations.

[0011] (1): A battery type determination device according to one embodiment of the present invention comprises: an output control unit that instructs a current application circuit to apply a specific current to a target battery; a voltage response measuring unit that measures a voltage response of the target battery to the current applied by the output control unit; a calculation unit that calculates an inductance value of the target battery based on the current value applied by the output control unit and the voltage value measured by the voltage response measuring unit; and a determination unit that determines the type of the target battery based on a specified value of the inductance corresponding to the type of the target battery and the inductance value of the target battery calculated by the calculation unit.

[0012] (2) In the above scheme (1), the determination unit determines whether the target battery is a battery of the specified type based on a specified value of the inductance of the battery of the specified type and the inductance value of the target battery calculated by the calculation unit.

[0013] (3): In the above-mentioned aspect (1) or (2), the target storage battery has a wound body of electrodes and separators.

[0014] (4) In the above-mentioned aspect (3), the target storage battery includes a plurality of battery cells and terminals of the battery cells, the battery cells have the wound body, and the inductance value varies according to the shape of the electrode or the shape of the terminal.

[0015] (5) In the above-mentioned aspect (3), the target storage battery includes a bus bar for connecting terminals of a plurality of battery cells having the wound body, and the inductance value varies according to a shape of the bus bar.

[0016] (6): A battery type determination method according to one embodiment of the present invention causes a battery type determination device to perform the following processing: instruct a current application circuit to apply a specific current to a target battery; measure a voltage response of the target battery to the applied current; calculate an inductance value of the target battery based on the current value applied to the target battery and the voltage value measured as the voltage response; and determine the type of the target battery based on a specified value of the inductance corresponding to the type of the target battery and the calculated inductance value of the target battery.

[0017] Effects of the Invention

[0018] According to (1) to (6), the battery type determination device performs the following processing: instructing the current application circuit to apply a specific current to the target battery; measuring the voltage response of the target battery to the applied current; calculating the inductance value of the target battery based on the current value applied to the target battery and the voltage value measured as the voltage response; and determining the type of the target battery based on a specified value of the inductance corresponding to the type of the target battery and the calculated inductance value of the target battery, thereby being able to determine the type of the battery without installing any identification components. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a diagram showing an example of a storage battery according to this embodiment.

[0020] Figure 2 This is a diagram showing an example of a storage battery according to this embodiment.

[0021] Figure 3 1 is a diagram showing a configuration example of a storage battery type determination device according to the present embodiment.

[0022] Figure 4A This is a circuit diagram for explaining an example of the electrical characteristics of the target storage battery.

[0023] Figure 4B It is a Cole-Cole graph showing an example of the electrical characteristics of the target storage battery.

[0024] Figure 5 1 is a diagram showing an example of corresponding information in the battery type determination device according to the present embodiment.

[0025] Figure 6 This is a flowchart showing an example of a process of determining the battery type of a target battery by the battery type determination device according to the present embodiment.

[0026] Figure 7 This is a flowchart showing an example of a process of determining the battery type of a target battery by the battery type determination device according to the present embodiment.

[0027] Description of reference numerals:

[0028] 100 target storage battery, 110 positive terminal, 120 negative terminal, 130 bus bar, 200 battery cell, 210 positive terminal, 220 negative terminal, 300 wound electrode body, 310 positive electrode tab, 320 negative electrode tab, 330 separator, 340 positive electrode, 350 negative electrode, 400 storage battery type determination device, 410 internal storage battery, 420 current output unit, 430 voltage measurement unit, 440 storage unit, 450 control unit, 451 output control unit, 452 voltage response measurement unit, 453 calculation unit, 454 determination unit, 460 determination result output unit, 470 input unit. DETAILED DESCRIPTION

[0029] Hereinafter, embodiments of a storage battery type determination device and a storage battery type determination method according to the present invention will be described with reference to the drawings.

[0030] Figure 1 as well as Figure 2 This is a diagram showing an example of a storage battery according to this embodiment. Figure 1 The structure of the battery is shown in outline. Figure 2 An overview of the battery structure of each battery cell constituting the storage battery is shown. Figure 2The storage battery 100 shown is configured by connecting a plurality of battery cells 200 in series. The storage battery 100 includes a positive electrode terminal 110 and a negative electrode terminal 120 , one or more bus bars 130 , and a plurality of battery cells 200 . Figure 2 Battery cells 200-1 to 200-M are shown as examples of the plurality of battery cells 200. M is an integer greater than or equal to 1.

[0031] Each battery cell 200 has a wound electrode body 300 (wound body) and an electrolyte (not shown) inside, and is provided with a positive terminal 210 and a negative terminal 220. The positive terminal 210-1 of the battery cell 200-1 is connected to the positive terminal 110 of the storage battery 100, and the negative terminal 210-M of the battery cell 200-M is connected to the negative terminal 120 of the storage battery 100. In addition, the positive terminal 210-i of the battery cell 200-i (2≤i≤M) is connected to the negative electrode 220-j of the battery cell 200-j through the bus bar 130-j (j=i-1). On the other hand, the negative terminal 220-k of the battery cell 200-k (1≤k≤M-1) is connected to the positive terminal 210-l of the battery cell 200-l (1=k+1) through the bus bar 130-k.

[0032] Each wound electrode body 300 includes a positive electrode tab 310, a negative electrode tab 320, a separator 330, a positive electrode 340, and a negative electrode 350. The separator 330 is a member that separates the positive electrode 340 from the negative electrode 350 and holds an electrolyte to ensure ion conductivity between the positive electrode 340 and the negative electrode 350. The wound electrode body 300 is formed by pressing the positive electrode tab 310, the negative electrode tab 320, the separator 330, the positive electrode 340, and the negative electrode 350 together. Figure 2 The layers are stacked and wound in the order shown.

[0033] Figure 34 is a diagram showing a configuration example of a battery type determination device 400 according to the present embodiment. The battery type determination device 400 includes an internal battery 410, a current output unit 420, a voltage measurement unit 430, a storage unit 440, a control unit 450, a determination result output unit 460, and an input unit 470. The control unit 450 is implemented by, for example, a hardware processor such as a CPU (Central Processing Unit) executing a program (software). Some or all of these components may be implemented by hardware (including a circuit unit: circuitry) such as an LSI (Large Scale Integration), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a GPU (Graphics Processing Unit), or may be implemented by the cooperation of software and hardware. The program may be stored in advance in a storage device (a storage device having a non-transitory storage medium) such as an HDD (Hard Disk Drive) or a flash memory, or may be stored in a removable storage medium (a non-transitory storage medium) such as a DVD or a CD-ROM, and installed by mounting the storage medium on a drive device.

[0034] The internal battery 410 is a battery that supplies the power required for the operation of the battery type determination device 400. Each functional unit of the battery type determination device 400 can operate using the power supplied by the internal battery 410. The internal battery 410 may be a battery or an interface that obtains power from another power source. In the following, in order to distinguish from the internal battery 410 that supplies the power required for the operation of the battery type determination device 400, the battery 100 that is the target of the battery type determination may be referred to as the "target battery".

[0035] The current output unit 420 is a current application circuit that is controlled so as to apply a specific current to the target storage battery 100. The current output unit 420 applies a current of a strength instructed by the control unit 450 to the target storage battery 100. The current output by the current output unit 420 is applied to the storage battery 100 via a probe P.

[0036] The voltage measuring unit 430 is a voltage measuring circuit that measures the output voltage of the target storage battery 100. The voltage measuring unit 430 outputs the measured value of the output voltage of the target storage battery 100 to the control unit 450. The timing at which the voltage measuring unit 430 measures the output voltage of the target storage battery 100 is controlled by the control unit 450.

[0037] The storage unit 440 is configured by using, for example, a magnetic storage device such as a HDD (Hard Disk Drive) or a semiconductor storage device such as an SSD (Solid State Drive). The storage unit 440 stores various information related to the operation of the battery type determination device 400. For example, the storage unit 440 stores measurement data of the output voltage of the target battery 100, information indicating the determination result of the battery type, setting information of the current applied to the target battery 100, various program data for realizing the control unit 450, etc. In addition, the storage unit 440 stores the corresponding information described later in advance.

[0038] The control unit 450 can control each functional unit of the battery type determination device 400 to make the battery type determination device 400 determine the battery type of the target battery 100. Specifically, the control unit 450 includes an output control unit 451, a voltage response measurement unit 452, a calculation unit 453, and a determination unit 454.

[0039] The output control unit 451 has a function of applying a specific current (hereinafter referred to as "identification current") for the purpose of identifying the type of the battery to the target battery 100 by controlling the output intensity of the current output unit 420. For example, the output control unit 451 can apply an alternating current that changes in a sinusoidal wave shape to the target battery 100 by continuously changing the output intensity of the current output unit 420. In addition, the output control unit 451 can also output and apply a direct current that changes in a rectangular wave shape to the target battery 100 by changing the output intensity of the current output unit 420 at a predetermined timing.

[0040] It should be noted that the output control unit 451 may be configured to detect that the target battery 100 is connected to the battery type determination device 400 and start applying the identification current to the target battery 100. In addition, when the battery type determination device 400 has an input device such as a mouse or a keyboard, the output control unit 451 may start applying the identification current to the target battery 100 in response to an input operation by the user.

[0041] The voltage response measuring unit 452 has a function of measuring the output voltage of the target storage battery 100 when the identification current is applied. That is, the voltage response measuring unit 452 has a function of measuring the response of the output voltage of the target storage battery 100 to the application of the identification current. Specifically, the voltage response measuring unit 452 obtains the measurement data after the timing of starting the application of the identification current to the target storage battery 100 from the measurement value of the output voltage of the target storage battery 100 outputted from the voltage measuring unit 430, and outputs it to the calculation unit 453.

[0042] The calculation unit 453 calculates a value representing the electrical characteristics of the target battery 100 (hereinafter referred to as the "electrical characteristic value") based on the measured data of the voltage response of the target battery 100 to the application of the identification current. In the present embodiment, the calculation unit 453 calculates the L component (inductance) of the impedance of the target battery 100 as the electrical characteristic value. The impedance of the battery represents the frequency dependence of the internal resistance of the battery. It is known that the L component of the impedance of a battery generally depends on the shape of the components of the battery and has little to do with the temperature, SOC (State Of Charge), degradation state, etc. of the battery. It is known that, for example, the L component varies depending on the shape of the electrodes and terminals of the battery. In addition, it is known that, for example, the L component varies depending on the shape of the busbar that connects the terminals of multiple battery cells of the battery. It is known that, particularly in the case where the battery has a wound electrode body, the L component of its impedance depends largely on the shape of the wound electrode body.

[0043] It should be noted that the time constant of the L component of the impedance of the battery is about 1 / several kHz, so it does not take a long time to measure. Therefore, in this embodiment, the voltage response of the target battery 100 is observed when the identification current that changes in the frequency band of about 5kHz to 1kHz that contributes to the appearance of the L component of the impedance is applied to the target battery 100.

[0044] For example, in Figure 4A The characteristic of the voltage response of the circuit C10 including the resistor (R), the coil (L), and the capacitor (C) to the applied current is given by Figure 4B The Cole-Cole curve shown in Figure 2 is shown in Figure 2. Figure 4A As shown, the loop C10 is a loop obtained by connecting a first loop C11 including a resistor R0 and a coil L1, a second loop C12 including a resistor R1 and a capacitor C1, a third loop C13 including a resistor R2 and a capacitor C2, and a CPE (Constant Phase Element) 3 in series.

[0045] exist Figure 4B In the Cole-Cole curve, conceptually, the curve in the first area A1 represents the response characteristics of the first loop C11, the curve in the second area A2 represents the response characteristics of the second loop C12, the curve in the third area A3 represents the response characteristics of the third loop C13, and the curve in the fourth area A4 represents the response characteristics of CPE3. Here, the L component of the impedance, which is one of the response characteristics of the loop C10, is expressed as the height (length in the vertical axis direction) of the curve at the boundary between the first area A1 and the second area A2. For example, Figure 4B In the example, the length of arrow B1 in the figure represents the size of the L component.

[0046] The calculation unit 453 calculates the L component of the impedance by creating the above-mentioned Cole-Cole curve or the like based on the measurement data of the voltage response obtained for the target storage battery 100 , and outputs the calculated value of the L component to the determination unit 454 .

[0047] The determination unit 454 determines the battery type of the target battery 100 based on the electrical characteristic value obtained for the target battery 100. Specifically, the determination unit 454 determines the battery type of the target battery 100 based on the correspondence information obtained by establishing a correspondence relationship between the battery type and the prescribed value of the L component of the impedance of each type of battery. It should be noted that the correspondence information is pre-stored in the storage unit 440. The determination unit 454 outputs information indicating the result of the determination of the battery type of the target battery 100 (hereinafter referred to as "determination result information") to the determination result output unit 460.

[0048] The determination result output unit 460 outputs the determination result information output from the determination unit 454 in a predetermined form. For example, the determination result output unit 460 may also include a display device such as a liquid crystal display, an organic EL (Electro-Luminescence) display, and display the determination result information on these display devices. In addition, for example, the determination result output unit 460 may also include a wired or wireless communication interface, and send the determination result information to other communication devices via these communication interfaces. In addition, the determination result output unit 460 may also include a sound output device such as a speaker, and output a sound indicating the content of the determination result information.

[0049] The input unit 470 has a function of inputting information related to the operation of the battery type determination device 400. For example, the input unit 470 may be configured to include an input device such as a mouse or a keyboard, and to input necessary information via these input devices. In addition, the input unit 470 may be configured to include a wired or wireless communication interface, and to input necessary information via these communication interfaces. The input unit 470 outputs the input information to the control unit 450.

[0050] Figure 5 1 is a diagram showing an example of the corresponding information in the battery type determination device 400 of this embodiment. Figure 5The form of the correspondence information table T1 shown is stored in the storage unit 440. For example, the correspondence information table T1 is a table having one or more records, and the records have values ​​of a battery ID, a battery category, and an L component prescribed value. The battery ID is identification information of the battery. The battery category indicates the category of the battery. The battery category can be one category or multiple categories. The L component prescribed value indicates a prescribed value or a range of prescribed values ​​of the L component of the impedance for the corresponding battery. The L component prescribed value becomes a determination condition when determining the battery category of the battery to be determined.

[0051] exist Figure 5 In the example, the battery type is represented by three categories: the first category, the second category, and the third category. For example, the first category represents the type of vehicle equipped with the corresponding battery. The second category represents whether the corresponding battery is a genuine battery manufactured by the manufacturer of the corresponding vehicle model. The third category represents the manufacturer of the corresponding battery. For example, Figure 5 The example of indicates that the battery identified by the battery ID of B001 is a genuine battery installed in the vehicle of model A. In addition, for example, Figure 5 The example of indicates that the battery identified by the battery ID of B101 is a non-genuine battery made in ○○.

[0052] Figure 6 1 is a flowchart showing an example of a process of determining the battery type of the target battery 100 by the battery type determination device 400 of the present embodiment. Here, at the start time point of the flowchart, the battery type determination device 400 is in a state of being connected to the target battery 100 to be determined. First, in the battery type determination device 400, the input unit 470 inputs vehicle type information (step S101). The vehicle type information is information indicating the vehicle type of the vehicle equipped with the target battery 100. The vehicle type information may be input by a user operation or may be obtained from other communication devices. The input unit 470 outputs the input vehicle type information to the control unit 450.

[0053] Next, the output control unit 451 controls the current output unit 420 to apply the identification current to the target battery 100. For example, the output control unit 451 applies a sinusoidal AC current that changes at a period of about 5 kHz to 1 kHz to the target battery 100 as the identification current (step S102).

[0054] Next, the voltage response measuring unit 452 measures the output voltage of the target storage battery 100 when the identification current is applied (step S103). Specifically, the voltage response measuring unit 452 obtains measurement data after the timing of starting the application of the identification current to the target storage battery 100, among the measurement values ​​of the output voltage of the target storage battery 100 outputted from the voltage measuring unit 430. The voltage response measuring unit 452 outputs the obtained measurement data to the calculation unit 453.

[0055] Next, the calculation unit 453 obtains the electrical characteristic value of the target storage battery 100 by performing calculations using the measurement data of the voltage response of the target storage battery 100 output from the voltage response measurement unit 452. Specifically, the calculation unit 453 calculates the value of the L component of the impedance of the target storage battery 100 as the electrical characteristic value (step S104). For example, the L component of the impedance in this case is obtained by the following equations (1) and (2).

[0056] [Mathematical formula 1]

[0057] jR(ω)=jωL…(1)

[0058] [Mathematical formula 2]

[0059] ω=2πf…(2)

[0060] In formula (1), f represents the frequency of the alternating current, and ω represents its angular frequency. In addition, R(ω) represents the resistance value, which is obtained by Ohm's law using the current value and the voltage value. In formula (1), j represents an imaginary unit, and L represents the L component of the impedance. The calculation unit 453 notifies the determination unit 454 of the value of the L component of the calculated impedance (hereinafter referred to as "L component measurement value").

[0061] Next, the determination unit 454 determines whether the target battery 100 is a legitimate battery based on the L component measurement value notified from the calculation unit 453. Specifically, the determination unit 454 refers to the corresponding information table T1 and selects a record having the model of the vehicle equipped with the target battery 100 as the value of the first category. Next, the determination unit 454 compares the value of the L component prescribed value of the selected record with the L component measurement value, and determines whether the L component measurement value is within the prescribed value range (step S105).

[0062] For example, when the L component of the impedance of the target battery is 10 -7 In this case, the specified value can be set in the corresponding information within the allowable range of about ±30%. -8 In the case of this level, a prescribed value can be set in the corresponding information within an allowable range of about ±100%.

[0063] Here, when it is determined that the L component measurement value is within the range of the prescribed value, the determination unit 454 regards the target storage battery 100 as a legitimate storage battery (for example, a genuine product) and executes the normal processing (step S106). On the other hand, when it is determined in step S105 that the L component measurement value is not within the range of the prescribed value, the determination unit 454 regards the target storage battery 100 as an unauthentic storage battery (for example, not a genuine product) and executes the abnormal processing (step S107).

[0064] The normal processing mentioned here refers to any processing as long as it is the processing that should be performed when the target battery 100 is a legitimate battery. Similarly, the abnormal processing mentioned here refers to any processing as long as it is the processing that should be performed when the target battery 100 is not a legitimate battery. For example, the determination unit 454 may also perform processing to allow the control system of the vehicle equipped with the target battery 100 to exert its original performance as normal processing, and perform processing to limit the performance that can be exerted by the control system of the vehicle equipped with the target battery 100 as abnormal processing. According to such control, by limiting the performance that can be exerted by the vehicle when a non-genuine battery is used in the company's vehicle, it is possible to prevent the vehicle from being exposed to dangerous situations before it happens.

[0065] In addition, for example, the determination unit 454 may execute a process of maintaining the warranty of the vehicle mounted with the target battery 100 as a normal process, and execute a process of stopping the warranty of the vehicle mounted with the target battery 100 as an abnormal process. According to such control, it is possible to suppress the situation where the vehicle manufacturer is charged an inappropriate cost for the warranty due to an accident or the like caused by a vehicle that does not use a genuine battery.

[0066] In addition, for example, the determination unit 454 may include the vehicle data of the vehicle equipped with the target battery 100 in the subject of statistical processing as a normal processing for the system that analyzes the vehicle data collected by telematics and provides various services, and exclude the vehicle data from the subject of statistical processing as an abnormal processing for the system that analyzes the vehicle data collected by telematics and provides various services. According to such control, it is possible to prevent the reliability of statistical processing from being reduced and the quality of service provision from being reduced due to the vehicle data of the vehicle that does not use a genuine battery.

[0067] It should be noted that such determination of the battery type and normal processing or abnormal processing according to the determination result may be executed when inspecting the vehicle equipped with the target battery 100 or when starting the vehicle equipped with the target battery 100.

[0068] Figure 7 1 is a flowchart showing an example of processing for determining the battery type of the target battery 100 by the battery type determination device 400 of the present embodiment. Figure 6 Similarly, at the start time of the flowchart, the battery type determination device 400 is connected to the target battery 100 to be determined. Figure 7 In Figure 6 The same treatment is applied to the case of Figure 6 The same reference numerals are used to indicate the same processes, and the description of the same processes will be omitted.

[0069] Following step S101, the output control unit 451 controls the current output unit 420 to apply the identification current to the target storage battery 100. For example, the output control unit 451 applies a rectangular wave current having a width of 1 msec as the identification current to the target storage battery 100 (step S201).

[0070] Following step S103, the calculation unit 453 performs calculations using the measurement data of the voltage response of the target storage battery 100 output from the voltage response measurement unit 452, thereby obtaining the electrical characteristic value of the target storage battery 100. Specifically, the calculation unit 453 calculates the value of the L component of the impedance of the target storage battery 100 as the electrical characteristic value (step S202). For example, the L component of the impedance in this case can be obtained by the following formula (3).

[0071] [Mathematical formula 3]

[0072] v(t)=R0+L*dI / dt…(3)

[0073] In formula (3), v(t) represents the voltage value at time t, and R0 represents the resistance value of resistor R0. In addition, L represents the L component of impedance, and I represents the current value. According to formula (3), in principle, the L component of impedance can be obtained as a fixed value, but the transient response frequency of the voltage generated by the L component is very high, so if the voltage response can be measured at an ideal high frequency, it can be calculated as a fixed value. However, in reality, it is conceivable that the L component is affected by the measurement noise and does not necessarily become a fixed value. In this case, the L component can be calculated as a discrete value that changes according to the sampling timing, so the operation unit 453 can also estimate the L component based on multiple measurement data groups, for example.

[0074] The battery type determination device 400 of the embodiment thus configured can determine the type of the target battery 100 based on the electrical characteristic value observed as the response by applying a specific current to the target battery 100. Therefore, the battery type determination device 400 of the embodiment can determine the type of the target battery 100 without installing a component for identification.

[0075] It should be noted that, in the above-mentioned embodiment, the battery type determination device 400 determines whether the target battery 100 is a legitimate battery based on a pre-specified vehicle type and L component measurement value, but the battery type determination device 400 can also be configured to identify other attributes of the target battery 100 as long as the attribute has established a correspondence with the specified value of the L component of the target battery 100.

[0076] For example, as long as the L component prescribed value can be set in the corresponding information within a range without duplication for each vehicle type, battery type determination device 400 may be configured to identify the vehicle type in which target battery 100 is installed as a normal battery based on the L component measurement value and the L component prescribed value.

[0077] Alternatively, for example, as long as the L component prescribed value can be set in the correspondence information within a range without duplication for each manufacturer, the battery type determination device 400 may be configured to identify the manufacturer of the target battery 100 based on the L component measurement value and the L component prescribed value.

[0078] The above-described embodiment can be expressed as follows.

[0079] A battery type determination device, wherein:

[0080] The battery type determination device is configured as follows:

[0081] have:

[0082] a storage device storing a program; and

[0083] Hardware processor,

[0084] The hardware processor performs the following processing by executing the program stored in the storage device:

[0085] Instructing a current application circuit to apply a specific current to a target battery;

[0086] measuring a voltage response of the subject battery to the applied current;

[0087] determining an inductance value of the target storage battery based on a current value applied to the target storage battery and a voltage value measured as the voltage response; and

[0088] The type of the target storage battery is determined based on a prescribed value of inductance corresponding to the type of the target storage battery and the obtained inductance value of the target storage battery.

[0089] As mentioned above, although the form for implementing this invention was demonstrated using embodiment, this invention is not limited to such embodiment at all, Various deformation|transformation and substitution can be added in the range which does not deviate from the summary of this invention.

Claims

1. A battery type determination device, wherein: The battery type determination device comprises: an output control unit that instructs the current application circuit to apply a specific current to the target storage battery; a voltage response measuring unit configured to measure a voltage response of the target storage battery to the current applied by the output control unit; a calculation unit that obtains an inductance value of the target storage battery based on the current value applied by the output control unit and the voltage value measured by the voltage response measurement unit; as well as A determination unit determines the type of the target storage battery based on a predetermined value of inductance corresponding to the type of the target storage battery and the inductance value of the target storage battery obtained by the calculation unit.

2. The battery type determination device according to claim 1, wherein: The determination unit determines whether the target storage battery is a storage battery of the specified type based on a predetermined value of inductance of a storage battery of the specified type in advance and the inductance value of the target storage battery obtained by the calculation unit.

3. The battery type determination device according to claim 1 or 2, wherein: The target storage battery has a wound body of electrodes and a separator.

4. The battery type determination device according to claim 3, wherein: The target storage battery includes a plurality of battery cells and terminals of the battery cells, wherein the battery cells have the wound body. The inductance value varies according to a shape of the electrode or a shape of the terminal.

5. The battery type determination device according to claim 3, wherein: The target storage battery includes a bus bar for connecting terminals of a plurality of battery cells having the wound body. The inductance value varies according to the shape of the bus bar.

6. A method for determining the type of a battery, wherein: The battery type determination method enables the battery type determination device to perform the following processing: Instructing a current application circuit to apply a specific current to a target battery; measuring a voltage response of the subject battery to the applied current; determining an inductance value of the target storage battery based on a current value applied to the target storage battery and a voltage value measured as the voltage response; as well as The type of the target storage battery is determined based on a prescribed value of inductance corresponding to the type of the target storage battery and the obtained inductance value of the target storage battery.

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