Secondary battery information output device

Abstract

The invention provides a secondary battery information output device capable of easily estimating the characteristics of a secondary battery. This secondary battery information output device is provided with: a data acquisition element that acquires charge / discharge data; the storage element is used for storing the first corresponding relation data and the second corresponding relation data; an information processing element that estimates the type of the secondary battery to be processed; and an output element that outputs the estimation result of the information processing element. The information processing element executes a first estimation process for estimating the type of the secondary battery to be processed, and if the type of the secondary battery to be processed cannot be uniquely estimated in the first estimation process, further executes a second estimation process for estimating the type of the secondary battery to be processed.

Description

Technical Field

[0001] The present invention relates to a device for outputting information of a secondary battery. Background Art

[0002] The deterioration state of the secondary battery is determined when the secondary battery is maintained or when a used secondary battery is to be reused, etc. For example, the deterioration state of the secondary battery can be estimated based on the voltage value of the secondary battery (see, for example, Patent Document 1).

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent No. 7266907 Summary of the invention

[0006] Problems to be solved by the invention

[0007] However, the correspondence between the voltage value of the secondary battery and the degradation state varies depending on the characteristics of the secondary battery. Furthermore, although it is desirable to know the model of the secondary battery as information for specifying the characteristics of the secondary battery, the information on the model of the secondary battery may not be obtained.

[0008] In this case, there is also a demand to determine the degradation of the secondary battery based on the characteristics of the secondary battery to be determined to a certain extent, but the technology in Patent Document 1 cannot meet this demand. Therefore, a technology that can easily estimate the characteristics of the secondary battery is required.

[0009] Therefore, an object of the present invention is to provide a secondary battery information output device capable of easily estimating the characteristics of a secondary battery.

[0010] Means for solving problems

[0011] The secondary battery information output device of the present invention is characterized by comprising:

[0012] a data acquisition element that acquires charge and discharge data of the secondary battery as a processing object, wherein the charge and discharge data is composed of data of a first voltage value before charging or discharging and data of a second voltage value after the start of charging or discharging;

[0013] A storage element storing first correspondence data and second correspondence data, wherein the first correspondence data indicates a correspondence between the first voltage value of the secondary battery and the type of the secondary battery; and the second correspondence data indicates a correspondence between a change in a voltage value between the first voltage value and the second voltage value of the secondary battery and the type of the secondary battery;

[0014] an information processing element for estimating the type of the secondary battery to be processed based on the charge and discharge data, the first correspondence data, and the second correspondence data; and

[0015] an output element that outputs the estimation result of the information processing element,

[0016] The information processing element performs the following first estimation processing: estimating the type of the secondary battery as the processing target based on the first voltage value data of the secondary battery as the processing target and the first correspondence relationship data;

[0017] In the first estimation processing, when the type of the secondary battery as the processing object cannot be uniquely estimated, the information processing element further performs the following second estimation processing: estimating the type of the secondary battery as the processing object based on the change in voltage value between the first voltage value and the second voltage value and the second correspondence data.

[0018] The inventors have found that by identifying the type of a secondary battery (for example, the type of a secondary battery based on the difference between a positive electrode active material and a negative electrode active material), the characteristics of the secondary battery can be determined to a certain extent.

[0019] (1) The type of a secondary battery can sometimes be determined by its voltage value before charge or discharge (so-called open circuit voltage).

[0020] (2) Even when the category of a secondary battery cannot be determined by its voltage value before charging or discharging, that is, for example, when the voltage values ​​before charging or discharging overlap within a desirable range in multiple secondary batteries of different categories, the category of the secondary battery can be determined to a certain extent by the way the voltage value before charging or discharging changes with the voltage value after the start of charging or discharging.

[0021] The present invention is made based on this novel insight. The data acquisition element acquires the charge and discharge data of the secondary battery as the processing object. The charge and discharge data is composed of data of the voltage value before charging or discharging, that is, the first voltage value, and data of the voltage value after the start of charging or discharging, that is, the second voltage value.

[0022] Furthermore, the information processing element estimates the type of the secondary battery to be processed based on first correspondence data indicating the correspondence between the first voltage value of the secondary battery and the type of the secondary battery and the first voltage value of the secondary battery to be processed. In a case where the type of the secondary battery to be processed cannot be uniquely estimated by the first voltage value, the information processing element further estimates the type of the secondary battery to be processed based on second correspondence data indicating the correspondence between a change in voltage value between the first voltage value and the second voltage value and the type of the secondary battery and a change in voltage value between the first voltage value and the second voltage value of the secondary battery to be processed.

[0023] Thus, when the type of the secondary battery can be uniquely estimated from the first voltage value, the type of the secondary battery can be estimated with a small number of processing steps.

[0024] Furthermore, when the type of the secondary battery cannot be uniquely estimated only by the first voltage value, the type of the secondary battery is automatically estimated using the change in voltage between the first voltage value and the second voltage value, thereby improving the reliability of estimating the type of the secondary battery.

[0025] Furthermore, since information used for estimating the type of the secondary battery requires only the voltage values ​​of the secondary battery before and after charging or discharging, the type of the secondary battery can be easily estimated.

[0026] As described above, according to the present invention, the type of a secondary battery can be easily estimated as the characteristic of the secondary battery.

[0027] In the present invention, it is preferred that the storage element stores manufacturer data indicating the correspondence between the category of the secondary battery and the manufacturer of the secondary battery, the information processing element estimates the manufacturer of the secondary battery to be processed based on the estimated category of the secondary battery to be processed and the manufacturer data, and the output element outputs the information of the manufacturer of the secondary battery to be processed estimated by the information processing element.

[0028] Even if the types of secondary batteries are the same, the characteristics of the secondary batteries may be different due to the different manufacturers who manufactured the secondary batteries. In order to further narrow the range of secondary battery characteristics, it is preferable to further obtain information on the manufacturer of the secondary batteries.

[0029] According to the present invention, the information processing element estimates the manufacturer of the secondary battery to be processed based on the manufacturer data indicating the correspondence between the type of the secondary battery and the manufacturer of the secondary battery and the estimated type of the secondary battery, and the output element outputs the estimated result. According to the present invention, the manufacturer of the secondary battery can be further estimated as a characteristic of the secondary battery.

[0030] In the present invention, it is preferable to include a receiving element that receives an operation of an operator of the secondary battery information output device.

[0031] When the information processing element cannot uniquely infer the manufacturer of the secondary battery to be processed, the output element outputs information of multiple manufacturers inferred by the information processing element, and the information processing element accepts the operation of the operator to select one of the multiple manufacturers via the acceptance element, and infers the accepted manufacturer as the manufacturer of the secondary battery to be processed.

[0032] According to the present invention, when the information processing element cannot uniquely estimate the manufacturer of the secondary battery to be processed, the output element outputs information of multiple manufacturers estimated by the information processing element. Then, the information processing element accepts an operation of the operator selecting a manufacturer from the multiple manufacturers, and estimates the accepted manufacturer as the manufacturer of the secondary battery to be processed.

[0033] Thus, even when the manufacturer cannot be uniquely estimated only from the type of the secondary battery, the reliability of estimating the manufacturer of the secondary battery can be improved through dialogue with the operator.

[0034] In the present invention, preferably, the storage element stores device data indicating a correspondence relationship between the manufacturer of the secondary battery and a device on which the secondary battery is installed.

[0035] The information processing element estimates a device on which the secondary battery to be processed is mounted based on the estimated manufacturer of the secondary battery to be processed and the mounted device data,

[0036] The output device outputs the information of the device equipped with the secondary battery as a processing target estimated by the information processing device.

[0037] Even if the type and manufacturer of the secondary battery are the same, the characteristics of the secondary battery may differ depending on the device for which the secondary battery is installed, that is, the device for which the secondary battery is manufactured. In order to further narrow the range of secondary battery characteristics, it is preferable to further obtain information on the device for which the secondary battery is installed.

[0038] According to the present invention, the information processing element estimates the equipment mounted on the secondary battery as a processing object based on the equipment mounted data indicating the correspondence between the manufacturer of the secondary battery and the equipment mounted on the secondary battery and the estimated manufacturer of the secondary battery, and the output element outputs the estimated result. According to the present invention, the equipment mounted on the secondary battery can be further estimated as a characteristic of the secondary battery.

[0039] In the present invention, it is preferred that there is a receiving element that receives the operation of the operator of the secondary battery information output device, and when the information processing element cannot uniquely infer the device on which the secondary battery as the processing object is mounted, the output element outputs the information of multiple devices inferred by the information processing element.

[0040] The information processing device receives, via the receiving device, an operation by the operator to select one of the plurality of devices, and estimates the received device as a device equipped with the secondary battery to be processed.

[0041] According to the present invention, when the information processing element cannot uniquely estimate the device carrying the secondary battery as the processing object, the output element outputs information of multiple devices estimated by the information processing element. Then, the information processing element accepts an operation of the operator selecting a device from the multiple devices, and estimates the accepted device as the device carrying the secondary battery as the processing object.

[0042] Thus, even when the device on which the secondary battery is mounted cannot be uniquely estimated only by the manufacturer of the secondary battery, the reliability of estimating the device on which the secondary battery is mounted can be improved through dialogue with the operator.

[0043] Brief description of the attached figure

[0044] Figure 1 This is a block diagram showing an example of the overall configuration of the secondary battery information output device of the present invention.

[0045] Figure 2 This is a diagram showing an example of the content of data used in the processing of the present invention.

[0046] Figure 3 This is a diagram showing an example of the content of data used in the processing of the present invention.

[0047] Figure 4 This is a diagram showing an example of the content of data used in the processing of the present invention.

[0048] Figure 5 This is a flowchart showing an example of the processing content of the present invention.

[0049] Figure 6 This is a diagram showing an example of the content of data used in the processing of the present invention.

[0050] Figure 7 This is a flowchart showing a modified example of the processing contents of the present invention.

[0051] Figure 8This is a flowchart showing a modified example of the processing contents of the present invention.

[0052] Fig. 9 This is a flowchart showing a modified example of the processing contents of the present invention.

[0053] Fig.10 This is a diagram showing an example of output content of the present invention.

[0054] Fig.11 This is a diagram showing an example of the content of data used in the processing of the present invention.

[0055] Fig.12 This is a diagram showing an example of output content of the present invention. DETAILED DESCRIPTION

[0056] <Structure of Secondary Battery Information Output Device>

[0057] First, use Figure 1 The structure of the secondary battery information output device of this embodiment will be described. It should be noted that the same reference numerals are given to the same structures and the description thereof may be omitted.

[0058] The secondary battery information output device of this embodiment is a device that outputs information of a secondary battery.

[0059] The secondary battery information output device of the present embodiment is, for example, a computer configured in a manner including a data acquisition element 10, a storage element 30, and an information processing element 50. Alternatively, the secondary battery information output device may also be configured to include a receiving element 70. The secondary battery information output device may be installed on a general-purpose computer such as a personal computer, a tablet computer, a smart phone, or the like, or may be installed on a terminal dedicated to the implementation of the present invention.

[0060] The data acquisition element 10 is a mechanism for acquiring charge and discharge data, and the charge and discharge data is composed of data of a first voltage value and data of a second voltage value, wherein the first voltage value is the voltage value of the secondary battery 110 as the processing object before charging or discharging; and the second voltage value is the voltage value of the secondary battery 110 as the processing object after charging or discharging starts.

[0061] The data acquisition element 10 is, for example, a voltmeter that can acquire the voltage value of the secondary battery 110 as a processing object, and various known means for acquiring the voltage value of the secondary battery may be used as the data acquisition element 10. When the data acquisition element 10 is a voltmeter, for example, the data acquisition element 10 acquires the voltage value from the secondary battery 110 as a processing object via a cable 130 having a terminal for acquiring the voltage value of the secondary battery 110. It should be noted that, for the sake of simplicity of description, only one cable is shown in the figure, but a number of cables required for acquiring the voltage value may be used.

[0062] Alternatively, the data acquisition element 10 may also acquire the charge and discharge data of the secondary battery 110 to be processed by, for example, reading the charge and discharge data from a storage unit, wherein the charge and discharge data is data previously acquired from the secondary battery 110 to be processed by using a voltmeter (not shown) and stored in a storage unit (not shown).

[0063] The storage element 30 is constituted by a storage device such as a ROM (Read Only Memory), a RAM (Random Access Memory), or a HDD (Hard Disk Drive), for example.

[0064] In addition to the first correspondence data and the second correspondence data, the storage element 30 also stores the processing results and information used for processing of the secondary battery information output device of this embodiment. The information used in the processing of the secondary battery information output device of this embodiment is, for example, charge and discharge data, manufacturer data, and mounted device data.

[0065] The charge and discharge data is data consisting of data of a first voltage value, which is a voltage value before charge or discharge of the secondary battery 110 to be processed, and data of a second voltage value, which is a voltage value after the start of charge or discharge.

[0066] It should be noted that "before charging" refers not only to the state where the discharge capacity of the secondary battery 110 to be processed is 0 (i.e., the state where the SOC (State Of Charge) is 0%), but also to any state between the state where the discharge capacity is 0 and the state where the battery is fully charged. That is, the voltage value before charging or before discharging has nothing to do with the state of the SOC of the secondary battery 110 to be processed, but is the voltage value of the secondary battery 110 to be processed when it is neither charged nor discharged.

[0067] That is, the first voltage value is a value of a so-called open circuit voltage of the secondary battery 110 to be processed. Also, the second voltage value is a voltage value obtained while the secondary battery 110 to be processed is being discharged (or charged).

[0068] The first correspondence data is data indicating the correspondence between the first voltage value of the secondary battery and the type of the secondary battery. Figure 2 An example of the content of the first correspondence data is shown. Figure 2 As shown, in the first correspondence data, the types of the plurality of secondary batteries are stored in correspondence with the upper limit (OCV upper limit) and lower limit (OCV lower limit) values ​​of the first voltage value, that is, information on the range of the first voltage value.

[0069] The type of a secondary battery refers to a type of a secondary battery characterized by the type of a positive electrode active material and the type of a negative electrode active material used in the battery, for example.

[0070] The second correspondence data is data indicating the correspondence between the change in voltage value between the first voltage value and the second voltage value of the secondary battery and the type of the secondary battery. The specific content of the second correspondence data will be described later.

[0071] The manufacturer data is data indicating the correspondence between the type of secondary battery and the manufacturer of the secondary battery. Figure 3 As shown, the types of secondary batteries included in the first correspondence data are stored in association with the names of manufacturers, which are businesses that manufacture and sell secondary batteries of the types.

[0072] The mounted device data is data indicating the correspondence between the manufacturer of the secondary battery and the device on which the secondary battery is mounted. Figure 4 As shown in the upper figure in , the name of the manufacturer that manufactures and sells secondary batteries and the like included in the manufacturer data is stored in association with the type of device that can mount the secondary battery of the manufacturer.

[0073] Or, for example, in the onboard device data, such as Figure 4 As shown in the figure below, the combination of the secondary battery type included in the charge and discharge data and the name of the manufacturer who manufactures and sells the secondary battery included in the manufacturer data is stored in correspondence with the type of equipment that can be equipped with the secondary battery determined by the combination.

[0074] The information processing element 50 is a so-called processor composed of a calculation processing device such as a CPU (Central Processing Unit), a memory, and an I / O (Input / Output) device.

[0075] The information processing element 50 reads and executes a predetermined program to perform various processes executed by the secondary battery information output device.

[0076] The receiving element 70 is a pointing device such as a keyboard, a touch panel, or a mouse that receives input from a user.

[0077] The output device 90 is, for example, a display that outputs information to the user.

[0078] The secondary battery 110 is a vehicle battery for electric vehicles, a battery for household storage batteries, various batteries corresponding to electric transportation equipment (carts, forklifts, etc.), personal computers, mobile phones and other onboard equipment, such as lithium-ion batteries. The secondary battery 110 can also be other types of secondary batteries.

[0079] <Processing Overview>

[0080] Data acquisition and processing

[0081] Next, the processing contents of the secondary battery information output device of this embodiment will be described. Figure 5 , describing a series of processes of the secondary battery information output device.

[0082] When the processing starts, the data acquisition element 10 executes the data acquisition processing ( Figure 5 / S10), the charge and discharge data is composed of data of a first voltage value of the secondary battery 110 to be processed before charging or discharging and data of a second voltage value after the start of charging or discharging.

[0083] The data acquisition element 10 in the present embodiment is a voltmeter, and acquires a voltage value from the secondary battery 110 as a processing target via a cable 130 . The cable 130 includes a terminal for acquiring the voltage value of the secondary battery 110 .

[0084] In the data acquisition process, the data acquisition element 10 acquires, for example, in a time series the voltage value of the secondary battery 110 as the processing object when it is not discharged (or charged), and acquires, in a time series the voltage value of the secondary battery 110 as the processing object during the discharge (or charging) after the secondary battery 110 as the processing object starts to discharge (or charge). The data acquisition element 10 stores these data in the storage element 30 as charge and discharge data, for example.

[0085] Figure 6 This is a diagram showing an example of charge and discharge data acquired in this process in a graph. The horizontal axis represents the time axis, and the vertical axis represents the voltage value. Figure 6 The left side of the time point t1 in the graph represents data of the first voltage value, and the right side of the time point t1 represents data of the second voltage value. In this way, the data of the first voltage value and the data of the second voltage value are continuous in time.

[0086] It should be noted that Figure 6 The change in voltage value when discharging starts from a state where the secondary battery 110 to be processed is not charged or discharged is shown, so the voltage value decreases to the right of time point t1. Therefore, when charging starts from a state where the secondary battery 110 to be processed is not charged or discharged, the voltage value increases to the right of time point t1.

[0087] First presumption process

[0088] Next, a first estimation process is executed for estimating the type of the secondary battery 110 to be processed based on the data of the first voltage value of the secondary battery 110 to be processed and the first correspondence data ( Figure 5 / S30).

[0089] When the process starts, the information processing element 50 acquires the data of the first voltage value and the first correspondence relationship data included in the charge and discharge data of the secondary battery 110 to be processed, which are stored in the storage element 30 , for example.

[0090] Then, the information processing element 50 refers to the first correspondence data to determine the type of the secondary battery that matches the data of the first voltage value. That is, the information processing element 50 estimates the type of the secondary battery that matches the data of the first voltage value based on whether the voltage value represented by the first correspondence data is between the upper limit of the OCV and the lower limit of the OCV.

[0091] For example Figure 6 The first voltage value of the secondary battery 110 as the processing object is 3.5 [V], so if the content of the first correspondence data is Figure 2 Based on the displayed content, it is estimated that the type of the secondary battery is "LFP" or "LCO".

[0092] It should be noted that, at this time, if the first voltage value of the secondary battery 110 to be processed is 3.8 [V], for example, it can be uniquely estimated that the type of the secondary battery is "LCO".

[0093] Then, it is determined whether the type of the secondary battery 110 to be processed can be uniquely estimated in the first estimation process. If the type of the secondary battery 110 to be processed cannot be uniquely estimated in the first estimation process ( Figure 5 / S50: No (N0)), the second estimation process is executed ( Figure 5 / S70) On the other hand, if the type of the secondary battery 110 to be processed can be uniquely estimated in the first estimation process ( Figure 5 / S50: Yes (YES)), the second estimation process is not executed ( Figure 5 / S70), and execute output processing ( Figure 5 / S130).

[0094] Second presumption process

[0095] The second estimation processing is a processing further performed when the type of the secondary battery 110 as the processing object cannot be uniquely estimated in the first estimation processing. This processing estimates the type of the secondary battery 110 as the processing object based on the change in the voltage value between the first voltage value and the second voltage value and the second correspondence relationship data.

[0096] When the second estimation process starts, the information processing element 50 acquires, for example, the second voltage value data for a predetermined time included in the charge and discharge data of the secondary battery 110 to be processed and stored in the storage element 30 and the second correspondence data.

[0097] Then, the information processing device 50 specifies the type of the secondary battery corresponding to the change in voltage value between the first voltage value and the second voltage value using the second correspondence data. The first voltage value used at this time is the first voltage value obtained in the first estimation process.

[0098] The second correspondence data is various data indicating the correspondence between the change in voltage value between the first voltage value and the second voltage value of the secondary battery and the type of the secondary battery, and may be data in various forms such as a correspondence table, a calculation formula, a function, and a determination model.

[0099] The following is an explanation of an example in which the second correspondence data is a judgment model that uses the following baseline data and data on the category of a sample secondary battery as learning data, wherein the baseline data is data representing a first voltage value and a second voltage value for a specified amount of time obtained from a plurality of sample secondary batteries corresponding to the categories of the secondary batteries stored in the first correspondence data, respectively. The judgment model is a learned model that performs machine learning on the correspondence between the change in voltage value between the first voltage value and the second voltage value of a secondary battery and the category of the secondary battery, and uses the first voltage value obtained from the secondary battery 110 as a processing object and the second voltage value for a specified amount of time as input, and outputs a judgment result of the category of the secondary battery 110 as a processing object.

[0100] In this case, the information processing device 50 inputs the first voltage value obtained from the secondary battery 110 as the processing object and the second voltage value of the predetermined time into the above-mentioned learning completion determination model as the second correspondence data. Then, the information processing device 50 estimates that the type of the secondary battery output by the determination model is the type of the secondary battery 110 as the processing object.

[0101] Output processing

[0102] Then, the information processing element 50 performs an output process ( Figure 5 / S130), a series of processes are terminated. When the second estimation process is not performed, the information processing element 50 outputs the estimation result of the first estimation process to, for example, a display as the output element 90; when the second estimation process is performed, the information processing element 50 outputs the estimation result of the second estimation process to, for example, a display as the output element 90. The operator can know the estimation result of the type of the secondary battery 110 as the processing object by observing the output information.

[0103] An example of an embodiment of the present invention has been described above, but the present invention is not limited thereto. Various changes can be made without departing from the spirit of the present invention. An example of a modified embodiment of the present invention is described below.

[0104] <Changes in implementation method>

[0105] Hereinafter, a modified embodiment of performing the manufacturer estimation process and the installed equipment estimation process after executing the first estimation process and the second estimation process will be described. Figure 7 Processing and Utilization of Steps S10 to S70 Figure 5 The above-described processing is the same, so the description is omitted.

[0106] Manufacturer presumption processing

[0107] Manufacturer Presumptive Treatment ( Figure 7 / S90) The manufacturer of the secondary battery 110 to be processed is estimated based on the type and manufacturer data of the secondary battery 110 to be processed estimated by the information processing element 50 in the first estimation process or the second estimation process.

[0108] When the processing starts, the information processing element 50 estimates the manufacturer ( ) of the secondary battery 110 to be processed based on the type of the secondary battery 110 to be processed estimated in the first estimation processing or the second estimation processing and by referring to the manufacturer data stored in the storage element 30. Figure 8 / S91).

[0109] That is, for example, if the manufacturer data is Figure 3 In the case of the correspondence table shown, when the type of the secondary battery 110 to be processed is estimated to be LFP, it is estimated that "Company A", "Company B" and "Company C" stored in correspondence with LFP are likely to be the manufacturers of the secondary battery 110 to be processed.

[0110] Note that, for example, if the only manufacturer stored in association with the LFP is Company A, “Company A” is uniquely estimated as the manufacturer of the secondary battery 110 to be processed.

[0111] Then, it is determined whether the manufacturer of the secondary battery 110 to be processed can be uniquely estimated. If the manufacturer of the secondary battery 110 to be processed cannot be uniquely estimated ( Figure 8 / S93: No (N0)), the processing of steps S95 to S99 is executed. On the other hand, if the manufacturer of the secondary battery 110 to be processed can be uniquely estimated ( Figure 8 / S93: Yes (YES)), the processing of steps S95 to S99 is not executed, and the manufacturer estimation processing is terminated.

[0112] When the manufacturer of the secondary battery 110 to be processed cannot be uniquely estimated ( Figure 8 / S93: No (N0)), the information processing element 50 first outputs a display for urging the operator to select one manufacturer from the plurality of manufacturers together with information of the plurality of manufacturers estimated in step S91 as the manufacturer of the secondary battery 110 to be processed, to the display of the output element 90 ( Figure 8 / S95).

[0113] Then, the information processing device 50 receives an operation of selecting a manufacturer from the plurality of manufacturers via the touch panel as the receiving device 70 ( Figure 8 / S97), and the manufacturer accepted is presumed to be the manufacturer of the secondary battery to be processed ( Figure 8 / S99), ending the manufacturer estimation process.

[0114] · Estimation of equipment on board

[0115] Estimation of equipment on board ( Figure 7 / S110) The device equipped with the secondary battery 110 to be processed is estimated based on the manufacturer of the secondary battery 110 to be processed and the device data estimated by the information processing device 50 in the manufacturer estimation process. It should be noted that this process may be omitted.

[0116] When the process starts, the information processing element 50 estimates the mounted device ( ) of the secondary battery 110 to be processed based on the manufacturer of the secondary battery 110 to be processed estimated in the manufacturer estimation process and by referring to the mounted device data stored in the storage element 30. Fig. 9 / S111).

[0117] That is, for example, when the device data is Figure 4In the case of a correspondence table such as that shown in the upper figure, when the manufacturer of the secondary battery 110 to be processed is estimated to be Company B, it is estimated that the "storage battery for wind power generation" and "electric vehicle" stored in correspondence with Company B are likely to be the equipment equipped with the secondary battery 110 to be processed.

[0118] Note that, at this time, if, for example, the only device stored in association with Company B is an electric vehicle, “electric vehicle” is uniquely estimated as the device equipped with the secondary battery 110 to be processed.

[0119] Or, for example, when the device data is Figure 4 In the case of the correspondence table shown in the figure below, if the category of the secondary battery 110 to be processed estimated in the first estimation process or the second estimation process is LFP, and the manufacturer of the secondary battery 110 to be processed estimated in the manufacturer estimation process is Company B, then "electric vehicle" is uniquely estimated as the device equipped with the secondary battery 110 to be processed.

[0120] Then, it is determined whether the device equipped with the secondary battery 110 to be processed can be uniquely estimated. If the device equipped with the secondary battery 110 to be processed cannot be uniquely estimated ( Fig. 9 / S113: No (N0)), the processing of steps S115 to S119 is executed. On the other hand, if the device equipped with the secondary battery 110 to be processed can be uniquely estimated ( Fig. 9 / S113: Yes (YES)), the processing of steps S115 to S119 is not executed, and the installed equipment estimation processing is terminated.

[0121] When the device on which the secondary battery 110 to be processed is mounted cannot be uniquely estimated ( Fig. 9 / S113: No (N0)), the information processing element 50 first outputs a display urging the operator to select a device from these multiple devices together with information on multiple devices estimated in step S111 to be the devices equipped with the secondary battery 110 as the processing object to the display of the output element 90 ( Fig. 9 / S115).

[0122] Then, the information processing device 50 receives an operation of selecting a device from the plurality of devices via the touch panel as the receiving device 70 ( Fig. 9 / S117), the received device is estimated as a device equipped with a secondary battery to be processed ( Fig. 9 / S119), ending the manufacturer estimation process.

[0123] Output processing

[0124] Then, for example Fig.10 As shown, the output element 90 outputs information 901 of the type of the secondary battery 110 as the processing target estimated by the information processing element 50 in the above-mentioned processing, information 903 of the manufacturer, and information 905 of the mounted device ( Figure 7 / S130), and a series of processing is terminated. It should be noted that, when the onboard equipment estimation processing is omitted, the display 905 of the onboard equipment information does not need to be output.

[0125] <Other changes in implementation>

[0126] Although the examples of the modified embodiments of the present invention have been described above, the present invention is not limited thereto and various further modifications can be made without departing from the spirit of the present invention.

[0127] For example, in the above description, an embodiment in which a judgment model that has been learned by a machine using learning data is used as the second correspondence data is described, but the present invention is not limited thereto. That is, for example, the second correspondence data may also be the following judgment model: the following reference data is compared with the first voltage value obtained from the secondary battery 110 as the processing object and the second voltage value of the specified time, and the category of the secondary battery 110 as the processing object is determined based on the degree of approximation of the comparison, wherein the above reference data is data indicating the change in the time series of the first voltage value and the second voltage value in the specified time corresponding to the category of the secondary battery stored in the first correspondence data. In this case, the reference data may also be stored in the storage unit 30 in advance.

[0128] The processing content of the second estimation processing in this case is as follows, for example. That is, for example, when the first voltage value of the secondary battery 110 to be processed is 3.5 [V], the information processing element 50 obtains the reference data of the battery type whose first voltage value is 3.5 [V] or near from the reference data. In this embodiment, LFP and LCO are set to the reference data of the first voltage value of 3.5 [V] that can be obtained.

[0129] Fig.11 is a graph showing the reference data of LFP and LCO obtained in this way and the first voltage value and the second voltage value of the secondary battery 110 to be processed. The dashed line represents LFP, the dotted line represents LCO, and the solid line represents the change in voltage value between the first voltage value and the second voltage value of the secondary battery 110 to be processed.

[0130] That is, for example, in the present embodiment, the second voltage value for LFP decreases once relative to the first voltage value and then slowly continues to decrease. On the other hand, the second voltage value for LCO decreases faster than the first voltage value for LFP, and then decreases with a steeper curve than the LFP. Furthermore, the change in the voltage value between the first voltage value and the second voltage value of the secondary battery 110 to be processed is similar to the change in the LFP.

[0131] The determination model as the second correspondence data receives the reference data of LFP and LCO obtained in the above manner and the first voltage value and the second voltage value of the secondary battery 110 as the processing object as input, and uses a predetermined algorithm to calculate the value of the degree of similarity between the first voltage value and the second voltage value of the secondary battery 110 as the processing object and the reference data of LFP and LCO, etc., to determine the degree of similarity, and outputs the type of the secondary battery corresponding to the determined reference data with a high degree of similarity. Then, the information processing element 50 estimates the type of the secondary battery output by the determination model as the type of the secondary battery 110 as the processing object.

[0132] That is, in the present embodiment, the information processing element 50 estimates LFP as the type of the secondary battery 110 to be processed.

[0133] Fig.12 The output content includes information display 901 of the type of the secondary battery 110 to be processed estimated by the information processing element 50 in the above-mentioned processing. Fig.12 As shown, a graph 907 may be further displayed, which shows the contents of the reference data corresponding to the types of the secondary batteries constituting the comparison object in the estimation process and the first voltage value and the second voltage value of the secondary battery 110 as the processing object. This can improve the operator's recognition of the estimation result.

[0134] Explanation of symbols

[0135] 10 ...data acquisition element; 30 ...storage element; 50 ...information processing element; 70 ...receiving element; 90 ...output element; 110 ...secondary battery.

Claims

1. A secondary battery information output device, characterized in that: have: a data acquisition element that acquires charge and discharge data of the secondary battery as a processing object, wherein the charge and discharge data is composed of data of a first voltage value before charging or discharging and data of a second voltage value after the start of charging or discharging; A storage element storing first correspondence data and second correspondence data, wherein the first correspondence data indicates a correspondence between the first voltage value of the secondary battery and the type of the secondary battery; and the second correspondence data indicates a correspondence between a change in a voltage value between the first voltage value and the second voltage value of the secondary battery and the type of the secondary battery; an information processing element for estimating the type of the secondary battery to be processed based on the charge and discharge data, the first correspondence data, and the second correspondence data; and an output element that outputs the estimation result of the information processing element, The information processing element performs the following first estimation processing: estimating the type of the secondary battery as the processing target based on the first voltage value data of the secondary battery as the processing target and the first correspondence relationship data; In the first estimation processing, when the type of the secondary battery as the processing object cannot be uniquely estimated, the information processing element further performs the following second estimation processing: estimating the type of the secondary battery as the processing object based on the change in voltage value between the first voltage value and the second voltage value and the second correspondence data.

2. The secondary battery information output device according to claim 1, characterized in that: The storage element stores manufacturer data indicating a correspondence between the type of the secondary battery and the manufacturer of the secondary battery. The information processing element estimates the manufacturer of the secondary battery to be processed based on the estimated type of the secondary battery to be processed and the manufacturer data, The output device outputs information on a manufacturer of the secondary battery to be processed estimated by the information processing device.

3. The secondary battery information output device according to claim 2, characterized in that: A receiving element is provided for receiving an operation of an operator of the secondary battery information output device. When the information processing element cannot uniquely estimate the manufacturer of the secondary battery to be processed, the output element outputs information of a plurality of manufacturers estimated by the information processing element. The information processing device receives, via the receiving device, an operation by the operator to select one of the plurality of manufacturers, and estimates the received manufacturer as a manufacturer of the secondary battery to be processed.

4. The secondary battery information output device according to claim 2, characterized in that: The storage element stores device data indicating a correspondence between the manufacturer of the secondary battery and the device on which the secondary battery is installed. The information processing element estimates a device on which the secondary battery to be processed is mounted based on the estimated manufacturer of the secondary battery to be processed and the mounted device data, The output device outputs the information of the device equipped with the secondary battery as a processing target estimated by the information processing device.

5. The secondary battery information output device according to claim 4, characterized in that: A receiving element is provided for receiving an operation of an operator of the secondary battery information output device. When the information processing element cannot uniquely estimate the device on which the secondary battery to be processed is mounted, the output element outputs information on a plurality of the devices estimated by the information processing element. The information processing device receives, via the receiving device, an operation by the operator to select one of the plurality of devices, and estimates the received device as a device equipped with the secondary battery to be processed.

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