WO2024257421A1 - 蓄電池管理システム - Google Patents
蓄電池管理システム Download PDFInfo
- Publication number
- WO2024257421A1 WO2024257421A1 PCT/JP2024/009226 JP2024009226W WO2024257421A1 WO 2024257421 A1 WO2024257421 A1 WO 2024257421A1 JP 2024009226 W JP2024009226 W JP 2024009226W WO 2024257421 A1 WO2024257421 A1 WO 2024257421A1
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- WIPO (PCT)
- Prior art keywords
- storage battery
- battery module
- database
- inspection
- battery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/367—Software therefor, e.g. for battery testing using modelling or look-up tables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
Definitions
- the present invention relates to a system that manages everything from analysis to notification when a user reports a malfunction in a storage battery.
- Patent Document 1 describes a diagnostic system for lithium-ion secondary batteries.
- the diagnostic system of Patent Document 1 collects quality information from the manufacturing process of lithium-ion secondary batteries and stores it in a database.
- the diagnostic system of Patent Document 1 collects operational performance information from lithium-ion secondary battery modules in use and stores it in a database.
- the diagnostic system in Patent Document 1 monitors operational records, and when an abnormality occurs, it determines whether the cause of the abnormality is a manufacturing factor or a factor in the usage environment, and creates a diagnostic report.
- the diagnostic system in Patent Document 1 is a system that manages the entire process from the manufacture to the operation of the battery module. Therefore, if the manufacturer that manufactures the battery module is different from the manufacturer that sells the product equipped with the battery module, it is difficult to apply the diagnostic system in Patent Document 1.
- the diagnostic system in Patent Document 1 determines the malfunction without analyzing the degree of deterioration, so it is not possible to clearly determine whether the storage battery is simply deteriorating or whether a malfunction such as a breakdown has occurred.
- the object of this invention is to provide a rechargeable battery management system that, when a user reports a malfunction in a storage battery, determines whether the battery is simply deteriorating or whether a malfunction has occurred that may have been caused by manufacturing factors, and notifies the user.
- the battery management system of the present invention includes an inspection device, a first database, a second database, and a central management device.
- the inspection device measures the SOC-OCV characteristics of the battery module and generates inspection results of the usage state of the battery module including the SOC-OCV characteristics.
- the first database stores the inspection results of the usage state of the battery module by the inspection device.
- the second database stores quality information at the time of manufacture of the battery cells used in the battery module.
- the central management device can access the first database and the second database.
- the central management device analyzes the deterioration level of the battery module from the SOC-OCV characteristics, and generates and stores defect information for the battery module based on the analysis results of the deterioration level, the usage state inspection results, and the quality information.
- the central management device determines from the degradation analysis results that there is a defect caused by the quality at the time of manufacturing the battery cell, it obtains quality information about the battery cell from the second database.
- the central management device notifies the first database of the content of the defect information related to the quality information, and notifies the inspection device of the degradation analysis results.
- the degree of degradation is analyzed by measuring the SOC-OCV characteristics, and based on the results of the analysis of the degree of degradation, it is determined whether or not the malfunction is due to manufacturing factors.
- FIG. 1 is a diagram illustrating an example of the configuration of a battery management system according to a first embodiment.
- FIG. 2 is a diagram showing an example of the flow of various information used to determine a malfunction of a storage battery module.
- FIG. 3 is a diagram showing an example of the flow of various information after a malfunction of a storage battery module is determined.
- FIG. 4 is a diagram showing an example of the flow of various types of information when a battery cell deteriorates due to usage conditions.
- FIG. 5 is a diagram showing an example of the flow of various types of information in the event of a battery cell failure due to a manufacturing defect.
- FIG. 6 is a group of flowcharts illustrating an example of a system flow of the storage battery management method according to the first embodiment.
- FIG. 7 is a diagram illustrating an example of the configuration and information flow of a battery management system according to the second embodiment.
- FIG. 1 is a diagram showing an example of the configuration of the storage battery management system according to the first embodiment.
- the battery management system 10 includes a central management unit 20, an operation history management DB 31, an operation history management DB 32, an inspection device 411, an inspection device 412, an inspection device 421, an inspection device 422, and a manufacturing quality management DB 60.
- the manufacturing quality control DB 60 is provided by the battery manufacturer.
- the manufacturing quality control DB 60 corresponds to the "second database" of the present invention.
- This battery manufacturer has, for example, battery factories 71, 72, and 73, and produces multiple battery cells of the same type (lithium ion secondary battery cells) and ships them to product manufacturer 1 and product manufacturer 2.
- Operation history management DB31 is provided in product manufacturer 1.
- Operation history management DB32 is provided in product manufacturer 2.
- Product manufacturer 1 and product manufacturer 2 are, for example, manufacturers of different products, and manufacture products that include storage battery modules that include electronic cells manufactured by a battery manufacturer.
- Operation history management DB31 and operation history management DB32 correspond to the "first database" of the present invention.
- product manufacturer 1 manufactures battery-powered devices 511 and 512 of the same type.
- Product manufacturer 2 manufactures battery-powered devices 521 and 522 of the same type.
- Inspection device 411 is provided in retailer 11.
- Inspection device 412 is provided in retailer 12.
- Retailer 11 and retailer 12 are stores that sell products of product manufacturer 1.
- Inspection device 421 is provided in retailer 21. Inspection device 422 is provided in retailer 22. Retailer 21 and retailer 22 are stores that sell products of product manufacturer 2.
- the central management unit 20 belongs to the battery manufacturer and may be located at the battery manufacturer or may be located at a location independent of the battery manufacturer.
- the central management unit 20 must have at least the function of analyzing the degree of deterioration of the battery cells using the SOC-OCV characteristics and the function of determining defects in the storage battery module, which will be described later.
- the central management unit 20 can communicate data with the operation history management DB 31 and the operation history management DB 32. In other words, the central management unit 20 can access the operation history management DB 31 and the operation history management DB 32.
- Operation history management DB31 can communicate data with inspection device 411 and inspection device 412.
- Operation history management DB32 can communicate data with inspection device 421 and inspection device 422.
- the central management unit 20 can communicate data with the manufacturing quality management DB 60. In other words, the central management unit 20 can access the manufacturing quality management DB 60.
- FIG. 2 is a diagram showing an example of the flow of various information used to determine a defect in a storage battery module.
- FIG. 2 the flow of information from the inspection device 411, the inspection device 412, the inspection device 421, and the inspection device 422 to the central management device 20 is shown.
- Inspection device 411, inspection device 412, inspection device 421, and inspection device 422 have a charge/discharge function. Inspection device 411, inspection device 412, inspection device 421, and inspection device 422 measure the SOC-OCV characteristics of the storage battery module that is charged by the device itself during charging.
- the inspection device 411 charges the storage battery module of the battery-powered device 511, it measures the SOC-OCV characteristics of the storage battery module of the battery-powered device 511.
- the inspection devices 412, 421, and 422 charge the storage battery modules of the battery-powered devices 512, 521, and 522, they each measure the SOC-OCV characteristics of the storage battery modules of the battery-powered devices 512, 521, and 522.
- inspection devices 411, 412, 421, and 422 acquire battery management system information (BMS information) of the storage battery module charged by their own devices from the storage battery module.
- the battery management system information includes, for example, the number of times the storage battery module has been charged, the number of days it has been used, and the number of days it has been left unused.
- inspection devices 411, 412, 421, and 422 acquire the serial number of the storage battery module charged by their own devices, and the product number and serial number of the battery cells used in the storage battery module.
- Inspection device 411 and inspection device 412 transmit the SOC-OCV characteristics and BMS information acquired by their own devices to operation history management DB 31 as the inspection results of the usage state.
- the operation history management DB31 accumulates the inspection results of the usage status of each storage battery module received from the inspection device 411 and the inspection device 412. At this time, the serial number of the storage battery module for which the inspection results are accumulated is linked to the product number and serial number of the battery cells used in this storage battery module.
- Inspection devices 421 and 422 transmit the SOC-OCV characteristics and BMS information acquired by their own devices to operation history management DB 32 as inspection results for the usage state.
- Operation history management DB 32 accumulates the inspection results for the usage state of each storage battery module received from inspection devices 421 and 422. At this time, the serial number of the storage battery module for which the inspection results are accumulated is linked to the serial numbers of the battery cells used in this storage battery module, and is accumulated as part of the inspection results.
- the manufacturing quality control DB 60 stores quality information on the manufacturing of battery cells. Specifically, the manufacturing quality control DB 60 stores the serial numbers of the battery cells manufactured in the battery factories 71, 72, and 73 and the manufacturing lot numbers that include these battery cells as quality information.
- manufacturing quality control DB 60 adds the manufacturing number of the battery cell with the defect and the manufacturing lot number that includes this battery cell to the quality information and stores them.
- an inspection device installed at the dealer measures the SOC-OCV characteristics of the storage battery module to be judged for the problem, acquires BMS information of the storage battery module, and generates an inspection result including these.
- the inspection device transmits the inspection result to an operation history management DB, and the operation history management DB transmits the received inspection result to the central management device 20.
- Figure 3 shows an example of the flow of various information after a malfunction of a storage battery module is determined.
- the central management unit 20 analyzes the degree of deterioration of the storage battery module (battery cell) that is being judged to be defective based on the SOC-OCV characteristics in the received inspection results.
- the central management unit 20 also acquires the BMS information of the storage battery module that is being judged to have a malfunction.
- the central management unit 20 also acquires the manufacturing lot number of the battery cell used in the storage battery module that is being judged to have a malfunction, based on the linking information included in the inspection results.
- the central management unit 20 determines whether the storage battery module being judged to be defective is due to a manufacturing defect or deterioration of the battery cells due to use, based on the results of the deterioration level analysis. At this time, the central management unit 20 refers to the BMS information.
- the central management unit 20 determines that deterioration of the battery cells of the storage battery module being evaluated is due to usage conditions.
- the central management unit 20 determines that there is a possibility of a manufacturing defect.
- the central management unit 20 determines that there is a possibility of a manufacturing defect, it uses the manufacturing lot number of the battery cell to inquire of the manufacturing quality control DB 60 whether or not there is a manufacturing defect (inquiry of defect information).
- the manufacturing quality control DB 60 detects whether or not a defect has occurred in the manufacturing lot number inquired about by the central management unit 20 based on the quality information accumulated by the device itself.
- the manufacturing quality control DB 60 responds to the central management unit 20 with the detection result of the presence or absence of a defect.
- the central management unit 20 notifies the product manufacturer of the defect information based on the received response on the presence or absence of a defect.
- the central management unit 20 also notifies the deterioration analysis result to the inspection device that performed the charging and discharging (measurement of SOC-OCV characteristics) of the storage battery module whose deterioration level was analyzed.
- FIG. 4 is a diagram showing an example of the flow of various types of information when a battery cell has deteriorated due to usage condition.
- the central management unit 20 determines that the battery cells of the storage battery module being judged for malfunction have deteriorated due to usage, it notifies (sends) this judgment result and the analysis result of the deterioration level to the operation history management DB.
- the operation history management DB stores the received judgment results.
- the operation history management DB notifies (sends) the judgment result and the analysis result of the deterioration level to the inspection device that charged and discharged the storage battery module whose deterioration level was analyzed.
- the inspection device for example, is equipped with a display device, and upon receiving the judgment result and the analysis result of the deterioration level, the inspection device displays the received judgment result and the analysis result of the deterioration level. This allows the salesperson at the dealership and the user to easily understand the defect judgment result and the deterioration level of the storage battery module (battery cell).
- the storage battery module of the battery-powered device 511 is brought to the dealer 11, and the inspection device 411 measures the SOC-OCV characteristics of the storage battery module of the battery-powered device 511 and acquires the BMS information.
- the central management device 20 analyzes the degree of deterioration based on this information, and refers to the BMS information to determine that the deterioration of the battery cells is due to the usage conditions.
- the central management device 20 notifies (sends) the judgment result and the analysis result of the deterioration level to the operation history management DB 31.
- the operation history management DB 31 notifies (sends) the judgment result and the analysis result of the deterioration level to the inspection device 411.
- the inspection device 411 displays the judgment result and the analysis result of the deterioration level.
- FIG. 5 is a diagram showing an example of the flow of various types of information when a battery cell malfunctions due to a manufacturing defect.
- the central management unit 20 determines, based on an inquiry to and response from the manufacturing quality control DB 60, that a battery cell of the storage battery module being judged to be defective has failed due to a defect during manufacturing, it notifies (sends) this judgment result (defect information) to the operation history management DB. At this time, the central management unit 20 obtains from the manufacturing quality control DB 60 the shipping destination (product manufacturer) of batteries from the same manufacturing lot as the defective battery cell. The central management unit 20 also notifies (sends) the operation history management DB of the obtained shipping destination.
- the operation history management DB that receives the defect information stores the judgment result (defect information).
- the operation history management DB notifies (sends) the judgment result (defect information) to each of the inspection devices with which data communication is possible.
- the inspection device is equipped with, for example, a display device, and upon receiving the judgment result (defect information), the inspection device displays the judgment result (defect information). This allows sales staff at each store and users to easily understand the judgment result (defect information).
- the storage battery module of the battery-powered device 511 is brought into the retail store 11, and the inspection device 411 measures the SOC-OCV characteristics of the storage battery module of the battery-powered device 511 and acquires the BMS information.
- the central management unit 20 analyzes the degree of deterioration based on this information, and refers to the BMS information to determine whether there is a possibility of a manufacturing defect.
- the central management unit 20 queries the manufacturing quality management DB 60 to determine whether the battery cell has failed due to a manufacturing defect.
- the central management unit 20 If the failure of the battery cell is due to a defect during manufacturing, the central management unit 20 notifies (sends) this determination result (defect information) to the operation history management DB 31. Furthermore, if the central management unit 20 detects that a battery cell with the same manufacturing lot number as the failed battery cell has been shipped to the product manufacturer 2, it notifies (sends) this determination result (defect information) to the operation history management DB 32.
- the operation history management DB 31 accumulates the judgment result (defect information) in its own device and notifies (sends) it to the inspection device 411.
- the inspection device 411 displays the judgment result (defect information). Note that the operation history management DB 31 may or may not notify (send) the judgment result (defect information) to the inspection device 412.
- Operation history management DB32 accumulates the judgment results (defect information) in its own device. Operation history management DB32 may or may not notify (send) the judgment results (defect information) to inspection device 421 and inspection device 422.
- the central management unit 20 notifies (sends) the manufacturing quality control DB 60 of the contents related to manufacturing quality (such as what kind of defect occurred) from among the judgment results (defect information).
- the manufacturing quality control DB 60 stores the received contents related to manufacturing quality by linking them to the manufacturing lot number.
- 300 battery cells are manufactured in one lot at each of battery factories 71, 72, and 73.
- the 300 cells manufactured at battery factory 71 have manufacturing lot number LOT1
- the 300 cells manufactured at battery factory 71 have manufacturing lot number LOT2
- the 300 cells manufactured at battery factory 73 have manufacturing lot number LOT3.
- the 300 battery cells of manufacturing lot number LOT1 are assigned serial numbers 1-300
- the 300 battery cells of manufacturing lot number LOT2 are assigned serial numbers 301-600
- the 300 battery cells of manufacturing lot number LOT3 are assigned serial numbers 601-900.
- product manufacturer 1 e.g., an electrically assisted bicycle manufacturer or an automobile manufacturer
- product manufacturer 2 e.g., an automobile manufacturer
- product manufacturer 3 e.g., a power tool manufacturer
- serial numbers 1-100 of production lot number LOT1, serial numbers 301-400 of production lot number LOT2, and serial numbers 601-700 of production lot number LOT3 have been shipped to product manufacturer 1.
- Serial numbers 101-200 of production lot number LOT1, serial numbers 401-500 of production lot number LOT2, and serial numbers 701-800 of production lot number LOT3 have been shipped to product manufacturer 2.
- Serial numbers 201-300 of production lot number LOT1, serial numbers 501-600 of production lot number LOT2, and serial numbers 801-900 of production lot number LOT3 have been shipped to product manufacturer 3.
- the central management unit 20 queries the manufacturing quality control DB 60 to check whether there is similar defect information for other battery cells with serial numbers 1-49 and 51-100 shipped to product manufacturer 1 among the battery cells (serial numbers 1-300) in the same lot as the battery cell with that serial number, whether there is similar defect information for battery cells with serial numbers 101-200 shipped to product manufacturer 2, or whether there is similar defect information for battery cells with serial numbers 201-300 shipped to product manufacturer 3. If there is similar defect information for battery cells shipped to product manufacturer 2 or product manufacturer 3, the central management unit 20 notifies the product quality control DB 60 of that information and also notifies the manufacturing quality control DB 60 of the defect information for the battery cell with serial number 50.
- the storage battery management system 10 can determine whether the battery is simply deteriorating or whether a malfunction has occurred that may be due to manufacturing factors, and notify the user.
- (Battery management method) 6 is a set of flowcharts showing an example of a system flow of the storage battery management method according to the first embodiment. Note that the specific contents of each process shown in the set of flowcharts in FIG. 6 are described in the above-mentioned configuration. Therefore, the specific contents of the storage battery management method below will not be described except where necessary.
- the battery manufacturer's manufacturing quality control DB 60 acquires the manufacturing number and manufacturing lot number of the battery cells manufactured by the manufacturer and transmits them to the central management unit 20 (S61).
- the inspection device (the inspection device that will perform charging among inspection devices 411, 412, 421, and 422) acquires the serial number and BMS information of the battery cell used in the storage battery module that will perform charging (S11).
- the inspection device transmits the BMS of the storage battery module (battery cell) together with the serial number to the central management device 20 (S12).
- the inspection device starts charging the storage battery module and measuring the SOC-OCV characteristics (S13).
- S14 the inspection device transmits the SOC-OCV characteristics to the central management unit 20.
- the central management unit 20 analyzes the degree of deterioration of the storage battery module (battery cell) from the SOC-OCV characteristics (S21).
- the central management unit 20 determines from the results of the deterioration level analysis that the cause of the deterioration is not due to a defect in the manufacturing stage (S22: NO), it notifies the inspection device of the results of the deterioration level analysis (S23).
- the central management unit 20 determines from the degradation analysis results that the degradation was caused by a defect during the manufacturing stage (S22: YES), it identifies the battery manufacturer (manufacturing quality control DB 60) that manufactured the battery cell from the manufacturing number and lot number of the battery cell for which degradation analysis was performed, and queries this manufacturing quality control DB 60 for the manufacturing lot number and defect information (S24).
- the manufacturing quality control DB 60 receives the inquiry about the manufacturing lot number and defect information (S62). The manufacturing quality control DB 60 checks whether the same defect exists in battery cells shipped to other product manufacturers with the same manufacturing lot number.
- the manufacturing quality control DB 60 If there is a defect (S63: YES), the manufacturing quality control DB 60 returns information indicating that there is a defect to the central management unit 20 (S64). If there is no defect (S63: NO), the manufacturing quality control DB 60 returns information indicating that there is no defect to the central management unit 20 (S65).
- the central management unit 20 receives a response from the manufacturing quality control DB 60 (battery manufacturer) (S25). If a defect is found (S26: YES), the central management unit 20 notifies all product manufacturers that use (ship) battery cells with the same manufacturing lot number as the target battery cell of the defect information (S27).
- the central management unit 20 If there is no defect (S26: NO), the central management unit 20 notifies the product manufacturer that uses (ships) the target battery cell of the defect information (S28).
- FIG. 7 is a diagram showing an example of the configuration and information flow of the storage battery management system according to the second embodiment.
- the battery management system 10A according to the second embodiment differs from the battery management system 10 according to the first embodiment in the method of notifying the results of the analysis of the deterioration level.
- the other configurations and processes of the battery management system 10A are similar to those of the battery management system 10, and a description of similar parts will be omitted.
- the central management unit 20 analyzes the degree of deterioration of the storage battery module (battery cell) and generates the analysis results, and then notifies the analysis results directly to the inspection device that charged the storage battery module (battery cell) whose deterioration level was analyzed.
- the battery management system 10A can achieve the same effects as the battery management system 10.
- the above explanation shows a case where there are two operation history management DBs and four inspection devices, but these numbers are not limited to the numbers shown here. For example, if there are three or more product manufacturers that use storage battery modules, the number of operation history management DBs included corresponds to the number of manufacturers. Also, if there are three or more retail stores belonging to one product manufacturer, the number of inspection devices included corresponds to the number of stores.
- An inspection device that measures an SOC-OCV characteristic of a storage battery module and generates an inspection result of a usage state of the storage battery module including the SOC-OCV characteristic; a first database that accumulates inspection results of the usage state of the storage battery module by the inspection device; a second database that accumulates quality information at the time of manufacturing of the battery cells used in the storage battery module; a central management device that can access the first database and the second database, analyzes a deterioration level of the storage battery module from the SOC-OCV characteristics, and generates and accumulates defect information of the storage battery module based on a result of the deterioration level analysis, a result of the inspection of the usage state, and the quality information;
- a battery management system comprising: The central management device When it is determined from the analysis result of the deterioration degree that there is a defect caused by the quality at the time of manufacturing the battery cell, the quality information of the battery cell is acquired from the second database; notifying the first database of the content of the defect information related to the quality information;
- ⁇ 2> The battery management system of ⁇ 1> that notifies the second database of the defect information that is related to the quality information.
- the inspection device includes the number of times the storage battery module is charged and the number of days of use in the inspection items of the usage state,
- the central management device Acquiring the number of times the storage battery module is charged and the number of days it has been used; determining whether or not deterioration of the storage battery module is within an allowable range using the number of times the storage battery module is charged and the number of days of use of the storage battery module and an analysis result of the deterioration degree; notifying the inspection device of a result of determining whether or not the deterioration of the storage battery module is within an allowable range;
- the battery management system of ⁇ 1> or ⁇ 2> wherein the inspection device is equipped with a display device and displays the judgment result.
- ⁇ 4> When a plurality of the inspection devices and the first databases exist, The central management device If it is determined that there is a defect caused by the quality of the battery cell at the time of manufacture, another shipping destination of the battery cell is obtained; The battery management system according to any one of ⁇ 1> to ⁇ 3>, further notifying a first database corresponding to the other shipping destination of the content of the defect information related to the quality information.
- ⁇ 5> The central management device, If it is determined that the defect is not caused by the quality of the battery cell at the time of manufacture, The battery management system of ⁇ 4>, wherein the analysis result of the deterioration degree is notified only to the inspection device that measured the SOC-OCV characteristics.
- Battery management system 20 Central management device 31, 32: Operation record management DB 60: Manufacturing quality control DB 71, 72, 73: Battery factory 411, 412, 421, 422: Inspection equipment 511, 512, 521, 522: Battery-operated equipment
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Abstract
Description
本発明の第1の実施形態に係る蓄電池管理システムについて、図を参照して説明する。図1は、第1の実施形態に係る蓄電池管理システムの構成例を示す図である。
図2は、蓄電池モジュールの不具合判定に利用する各種情報の流れの一例を示す図である。図2では、検査装置411、検査装置412、検査装置421、および検査装置422から中央管理装置20への情報の流れを示す。
ユーザが電池使用装置の蓄電池モジュールの不具合を感じて、不具合の判定対象の蓄電池モジュールを販売店に持ち込む。この販売店に備えられた検査装置は、上述のように、不具合の判定対象の蓄電池モジュールのSOC-OCV特性を測定し、この蓄電池モジュールのBMS情報を取得して、これらを含む検査結果を生成する。検査装置は、検査結果を稼働実績管理DBに送信し、稼働実績管理DBは、受信した検査結果を、中央管理装置20に送信する。
図4は、使用状態による電池セルの劣化の場合の各種情報の流れの一例を示す図である。
図5は、製造時の不具合による電池セル故障の場合の各種情報の流れの一例を示す図である。
図6は、第1の実施形態に係る蓄電池管理方法のシステムフローの一例を示すフローチャート群である。なお、図6のフローチャート群に示す各処理の具体的な内容は、上述の構成の説明で行っている。したがって、以下の蓄電池管理方法については、必要な箇所を除いて具体的な内容の説明を省略する。
本発明の第2の実施形態に係る蓄電池管理システムについて、図を参照して説明する。図7は、第2の実施形態に係る蓄電池管理システムの構成例および情報の流れを示す図である。
前記検査装置による前記蓄電池モジュールの使用状態の検査結果を蓄積する第1のデータベースと、
前記蓄電池モジュールに使用されている電池セルの製造時における品質情報を蓄積する第2のデータベースと、
前記第1のデータベースおよび前記第2のデータベースにアクセス可能で、前記SOC-OCV特性から前記蓄電池モジュールの劣化度を解析するとともに、前記劣化度の解析結果、前記使用状態の検査結果、および前記品質情報に基づいて前記蓄電池モジュールの不具合情報を生成して蓄積する中央管理装置と、
を備えた、蓄電池管理システムであって、
前記中央管理装置は、
前記劣化度の解析結果から、前記電池セルの前記製造時の品質に起因する不具合があると判定した場合、前記電池セルの前記品質情報を前記第2のデータベースから取得し、
前記不具合情報のうち前記品質情報に関連する内容を前記第1のデータベースに通知し、
前記劣化度の解析結果を前記検査装置に通知する、蓄電池管理システム。
前記中央管理装置は、
前記蓄電池モジュールの前記充電回数および前記使用日数を取得し、
前記蓄電池モジュールの前記充電回数および前記使用日数と、前記劣化度の解析結果とを用いて、前記蓄電池モジュールの劣化が許容範囲か否かを判定し、
前記蓄電池モジュールの劣化が許容範囲か否かの判定結果を前記検査装置に通知し、
前記検査装置は、表示装置を備え、前記判定結果を表示する、<1>または<2>の蓄電池管理システム。
前記中央管理装置は、
前記電池セルの前記製造時の品質に起因する不具合があると判定した場合、前記電池セルの他の出荷先を取得し、
前記他の出荷先に対応する第1のデータベースに、前記不具合情報のうち前記品質情報に関連する内容を通知する、<1>乃至<3>のいずれかの蓄電池管理システム。
前記電池セルの前記製造時の品質に起因する不具合ではないと判定した場合、
前記SOC-OCV特性を測定した検査装置のみに、前記劣化度の解析結果を通知する、<4>の蓄電池管理システム。
20:中央管理装置
31、32:稼働実績管理DB
60:製造品質管理DB
71、72、73:電池工場
411、412、421、422:検査装置
511、512、521、522:電池使用装置
Claims (5)
- 蓄電池モジュールのSOC-OCV特性を測定して、前記SOC-OCV特性を含む前記蓄電池モジュールの使用状態の検査結果を生成する検査装置と、
前記検査装置による前記蓄電池モジュールの使用状態の検査結果を蓄積する第1のデータベースと、
前記蓄電池モジュールに使用されている電池セルの製造時における品質情報を蓄積する第2のデータベースと、
前記第1のデータベースおよび前記第2のデータベースにアクセス可能で、前記SOC-OCV特性から前記蓄電池モジュールの劣化度を解析するとともに、前記劣化度の解析結果、前記使用状態の検査結果、および前記品質情報に基づいて前記蓄電池モジュールの不具合情報を生成して蓄積する中央管理装置と、
を備えた、蓄電池管理システムであって、
前記中央管理装置は、
前記劣化度の解析結果から、前記電池セルの前記製造時の品質に起因する不具合があると判定した場合、前記電池セルの前記品質情報を前記第2のデータベースから取得し、
前記不具合情報のうち前記品質情報に関連する内容を前記第1のデータベースに通知し、
前記劣化度の解析結果を前記検査装置に通知する、
蓄電池管理システム。 - 前記不具合情報のうち前記品質情報に関連する内容を前記第2のデータベースに通知する、
請求項1に記載の蓄電池管理システム。 - 前記検査装置は、前記蓄電池モジュールの充電回数および使用日数を前記使用状態の検査項目に含み、
前記中央管理装置は、
前記蓄電池モジュールの前記充電回数および前記使用日数を取得し、
前記蓄電池モジュールの前記充電回数および前記使用日数と、前記劣化度の解析結果とを用いて、前記蓄電池モジュールの劣化が許容範囲か否かを判定し、
前記蓄電池モジュールの劣化が許容範囲か否かの判定結果を前記検査装置に通知し、
前記検査装置は、表示装置を備え、前記判定結果を表示する、
請求項1または請求項2に記載の蓄電池管理システム。 - 前記検査装置と前記第1のデータベースとが複数存在する場合、
前記中央管理装置は、
前記電池セルの前記製造時の品質に起因する不具合があると判定した場合、前記電池セルの他の出荷先を取得し、
前記他の出荷先に対応する第1のデータベースに、前記不具合情報のうち前記品質情報に関連する内容を通知する、
請求項1乃至請求項3のいずれかに記載の蓄電池管理システム。 - 前記中央管理装置は、
前記電池セルの前記製造時の品質に起因する不具合ではないと判定した場合、
前記SOC-OCV特性を測定した検査装置のみに、前記劣化度の解析結果を通知する、
請求項4に記載の蓄電池管理システム。
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| JP2013217897A (ja) * | 2012-04-05 | 2013-10-24 | Samsung Sdi Co Ltd | バッテリーの寿命予測システム |
| JP2013225441A (ja) * | 2012-04-23 | 2013-10-31 | Hitachi Ltd | 電池システムのメンテナンス管理システム及び方法 |
| JP2014002055A (ja) * | 2012-06-19 | 2014-01-09 | Hitachi Ltd | 二次電池の検査システム、充放電機、及び検査方法 |
| JP2015059933A (ja) * | 2013-09-20 | 2015-03-30 | 株式会社東芝 | 二次電池の異常診断装置及び異常診断方法 |
| JP2017073331A (ja) * | 2015-10-09 | 2017-04-13 | 株式会社デンソー | 二次電池装置 |
| JP2023017480A (ja) * | 2021-07-26 | 2023-02-07 | 本田技研工業株式会社 | 電池モデル構築方法及び電池劣化予測装置 |
| JP2023033811A (ja) * | 2021-08-30 | 2023-03-13 | 株式会社デンソー | 電池管理システムおよび電池管理方法 |
| JP2023095746A (ja) * | 2021-12-24 | 2023-07-06 | 株式会社デンソー | 電池監視装置、電池輸送機器、電池監視方法 |
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- 2024-03-11 JP JP2025527464A patent/JPWO2024257421A1/ja active Pending
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013217897A (ja) * | 2012-04-05 | 2013-10-24 | Samsung Sdi Co Ltd | バッテリーの寿命予測システム |
| JP2013225441A (ja) * | 2012-04-23 | 2013-10-31 | Hitachi Ltd | 電池システムのメンテナンス管理システム及び方法 |
| JP2014002055A (ja) * | 2012-06-19 | 2014-01-09 | Hitachi Ltd | 二次電池の検査システム、充放電機、及び検査方法 |
| JP2015059933A (ja) * | 2013-09-20 | 2015-03-30 | 株式会社東芝 | 二次電池の異常診断装置及び異常診断方法 |
| JP2017073331A (ja) * | 2015-10-09 | 2017-04-13 | 株式会社デンソー | 二次電池装置 |
| JP2023017480A (ja) * | 2021-07-26 | 2023-02-07 | 本田技研工業株式会社 | 電池モデル構築方法及び電池劣化予測装置 |
| JP2023033811A (ja) * | 2021-08-30 | 2023-03-13 | 株式会社デンソー | 電池管理システムおよび電池管理方法 |
| JP2023095746A (ja) * | 2021-12-24 | 2023-07-06 | 株式会社デンソー | 電池監視装置、電池輸送機器、電池監視方法 |
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