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WO2020110328A1 - Quality management method for electricity storage device - Google Patents

Quality management method for electricity storage device Download PDF

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Publication number
WO2020110328A1
WO2020110328A1 PCT/JP2019/006753 JP2019006753W WO2020110328A1 WO 2020110328 A1 WO2020110328 A1 WO 2020110328A1 JP 2019006753 W JP2019006753 W JP 2019006753W WO 2020110328 A1 WO2020110328 A1 WO 2020110328A1
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Prior art keywords
storage device
electricity storage
gas component
gas
quality
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French (fr)
Japanese (ja)
Inventor
八木　稔
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Kurita Water Industries Ltd
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Kurita Water Industries Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • 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
    • H01M10/04—Construction or manufacture in general
    • 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present invention relates to a quality control method for power storage devices used in electronic devices, automobiles, etc., and more particularly to a method for managing the quality of power storage devices based on gas components generated from the power storage devices.
  • a positive electrode body and a negative electrode body are enclosed in a casing together with an electrolytic solution, and a laminate of an electrode sheet and a separator is sandwiched in the case of a square type, and rolled in the case of a cylindrical type. And the lead portions of the positive electrode body and the negative electrode body as current collectors are connected to the respective terminals. Then, after accommodating the laminated bodies of various forms as described above in respective correspondingly shaped casings, the electrolytic solution is injected from the opening of the casing to impregnate the laminated body with the electrolytic solution, and the positive electrode body and the negative electrode are formed. It has a structure in which the body tip is exposed to the outside and enclosed in a casing.
  • the electrolytic solution used for the electricity storage device a non-aqueous electrolyte solution containing ethylene carbonate or the like is used, but since it is effective to increase the usable voltage in order to improve the energy density of the electricity storage device, Particularly, carbonate ester-based electrolytic solutions that can be charged and discharged at a high voltage are widely used.
  • the carbonic acid ester contained in the non-aqueous electrolyte solution is the temperature inside the electricity storage device during abnormalities such as repeated charge/discharge, overcharge, or short circuit during long-term use. It causes deterioration and electrolysis due to the rise.
  • carbon dioxide gas such as CO and CO 2
  • hydrocarbon gas such as methane and ethane
  • other non-aqueous electrolyte gas are generated inside the electricity storage device. It has been clarified that these generated gases are affected by the positive electrode active material used for the electricity storage device, the electrolytic solution, the electrolytic solution additive, the conductive auxiliary agent, the binder, etc., and the generated gas changes depending on their quality state. ..
  • an arbitrary electricity storage device is extracted once or for each predetermined number of manufacturing lots, and the quality is judged from the evaluation results of various electrical characteristics. Even so, the current situation is that problems such as ignition and swelling sometimes occur due to the deterioration of the electricity storage device. That is, conventionally, the electricity storage device is evaluated only based on various electrical characteristics, and the electricity storage device is considered in consideration of the influence of abnormality of the positive electrode active material, the electrolytic solution, the electrolyte solution additive, the conductive auxiliary agent, and the binder on the generated gas. There has been no method for quality control in the past.
  • the present invention has been made in view of the above problems, and an object of the present invention is to provide a method for managing the quality of an electricity storage device based on a gas component generated from the electricity storage device used in electronic devices, automobiles, and the like.
  • the present invention provides a reference gas determination step of obtaining a gas component generated from a normal power storage device, a management gas analysis step of analyzing a gas component generated from a power storage device to be managed, and The control gas component analyzed in the control gas analysis process and the reference gas component obtained in the reference gas determination process are compared with each other, and the control gas component becomes a management target due to the difference between the control gas component and the reference gas component.
  • a quality control method for an electricity storage device including a quality determination step of determining normality/abnormality of the electricity storage device and a presentation step of presenting normality/abnormality of the electricity storage device determined in the quality determination step (Invention 1).
  • a normal gas component as a reference can be obtained by, for example, obtaining a normal power storage device from a customer and analyzing a gas component generated from the normal power storage device in advance. Then, after obtaining the power storage device to be managed, analyzing the gas components generated, comparing the two, and judging whether the power storage device is normal or abnormal based on the difference, the gas of the power storage device is detected. It is possible to detect shipping abnormalities and perform shipping management.
  • the presentation step is performed by an electronic terminal (Invention 2).
  • a person in charge of a customer, etc. can carry an electronic terminal and show the normality/abnormality of the power storage device based on the generation of gas in the power storage device to be managed in front of the customer. Therefore, it is possible to shorten the time required to determine the possibility of abnormality caused by the gas generation from the power storage device, and to make the determination in the management of the power storage device in a short time.
  • the quality determining step makes the determination by collating the management gas component with a database of the reference gas components of a plurality of types of power storage devices created in advance (Invention 3). ).
  • invention 3 when the gas component generated from the power storage device to be managed is analyzed, this gas component information is collated with a database of reference gas components of the power storage device created in advance, and the difference is found.
  • the normality/abnormality of the electricity storage device based on the generation of gas can be determined based on the above. As a result, it is possible to make a judgment on the management of the power storage device in a short time.
  • a normal gas component serving as a reference is compared with a gas component of a power storage device to be managed, and an estimated abnormal factor is specified according to the difference in the component and presented to the customer. Therefore, the customer can grasp the problem in the manufacturing process of the power storage device in a short time, and the period for optimizing the power storage device can be shortened.
  • the estimated abnormality factor of the electricity storage device is recorded in the database as information in which a difference between the control gas component and the reference gas component is associated with the abnormality cause (Invention 5). ).
  • invention 5 it is possible to specify the estimated abnormal factor in correspondence with the content of the difference from the normal gas component serving as the reference only by collating the gas component of the power storage device to be managed with the database. You can As a result, the customer can quickly understand the problem in the manufacturing process of the power storage device, and thus the period for optimizing the power storage device can be further shortened.
  • the present invention is to know the gas component generated from a normal power storage device, then compare the two by analyzing the gas component generated by obtaining the power storage device to be managed, based on the difference
  • By determining the normality/abnormality of the electricity storage device it is possible to present to the customer in advance the possibility of an abnormality resulting from the generation of gas from the electricity storage device. Shipment management that avoids abnormalities can be performed.
  • FIG. 1 shows the flow of each step of the quality control method for an electricity storage device according to an embodiment of the present invention
  • FIG. 2 shows the correlation of the components of each step in FIG.
  • a gas (reference gas) component generated from a normal power storage device to be managed is obtained.
  • the reference gas component may be obtained as gas component information from the customer S in advance, or a normal electricity storage device E may be obtained from the customer S and a thermal load or an electricity may be supplied to the electricity storage device E as necessary.
  • the gas may be generated by applying a static load, the components of the generated gas may be analyzed, and the components may be determined using this as a reference gas.
  • the generated gas may be analyzed on-site by a person in charge of the customer S who visited the customer S, or may be brought back to the electricity storage device E to generate a gas component and analyzed. You may.
  • the analyzing means at this time is not limited as long as it can analyze the gas component, and a general-purpose gas analyzer such as a gas chromatography, a gas sensor or a gas detector tube may be used.
  • the power storage device E to be managed is obtained from the customer S, a thermal load or an electrical load is applied to the power storage device E as necessary to generate gas, and the generated gas (management gas) component is generated. analyse.
  • the management gas may be measured on-site by a person in charge of the customer S who visited the customer S, or the gas component may be taken back with the electricity storage device E. It may be generated and analyzed.
  • the analyzing means at this time is not limited as long as it can analyze the gas component, and a general-purpose gas analyzer such as a gas chromatography, a gas sensor or a gas detector tube may be used.
  • the obtained management gas component is compared with the reference gas component determined in the reference gas determination step described above.
  • a database of reference gas components of a plurality of types of power storage devices E may be created in advance, and the data in this database may be collated with the management gas components obtained by the analysis.
  • the database C of the reference gas components of the plurality of types of power storage devices E is stored in the cloud C, and the composition of the obtained management gas component is transmitted from the analysis means to the cloud C to collate with the database D. It can be done by doing so.
  • the measurement result is input to the electronic terminal I such as a mobile PC or a tablet terminal carried by a person who visited the customer S, and
  • the composition of the control gas component obtained from the terminal I may be transmitted to the cloud C, collated with the database D, and the control gas component and the reference gas component may be compared.
  • the gas component generated from the electricity storage device E includes the reference gas component and its composition ratio even if the electricity storage device E to be managed is normal due to surrounding environmental conditions and subtle differences among individual individuals. Is almost never the same. Therefore, when the management gas component and the reference gas component are compared, it is determined whether the quality of the electricity storage device E is normal or abnormal depending on whether the difference between the management gas component and the reference gas component is a slight difference or a significant difference.
  • This normal/abnormal threshold may be set in advance from the viewpoint of both the difference in the ratio of gas components and the difference in the composition of gas components.
  • the judgment criterion information based on the difference in the management gas component is stored in the database D described above, it is possible to identify the power storage device E and send the management gas component information to the cloud C to determine whether the power storage device E is normally managed. It is possible to judge abnormality in a short time.
  • the data of the relationship between the difference between the control gas component of the electricity storage device E with respect to the reference gas component and the cause of the abnormality is collected in advance, and the data is stored in the database D to identify the electricity storage device E.
  • the control gas component information may be input to determine whether the quality of the electricity storage device E is normal or abnormal, and the estimated abnormal cause may be specified and presented.
  • the quality control method of the electricity storage device of the present invention has been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiment, and various modifications can be made.
  • the power storage device can be applied to various types such as a lithium ion battery, an electric double layer capacitor, and an aluminum electrolytic capacitor, and the shape thereof is not limited.
  • the quality control of the electricity storage device of the present invention may be performed on the basis of the number of products manufactured, such as for each manufactured rod, or may be performed for each predetermined organization, and may be appropriately determined according to the contract with the customer S.
  • the quality is determined via the cloud C, but the quality may be determined directly by the electronic terminal I.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

A gas component is acquired from an electricity storage device that is to be managed and is normal. Next, an electricity storage device E to be managed is acquired from a customer S, gas is generated by applying a thermal load or an electric load to the electricity storage device E as needed, and a generated gas (management gas) component is analyzed. After the gas component generated from the electricity storage device E to be managed is analyzed, the management gas component and a reference gas component are compared, and the normality or abnormality of quality of the electricity storage device E is determined according to whether the difference of the management gas component from the reference gas component is a slight difference or a significant difference. The result of determination of normality or abnormality of quality of the electricity storage device E is presented to the customer S. According to this quality management method for an electricity storage device, on the basis of a gas component generated from an electricity storage device used in electronic equipment, an automobile, or the like, the quality of the electricity storage device can be managed.

Description

蓄電デバイスの品質管理方法Storage device quality control method

　本発明は、電子機器や自動車等に使用される蓄電デバイスの品質管理方法に関し、特に蓄電デバイスから発生するガス成分に基づいて蓄電デバイスの品質を管理する方法に関する。 The present invention relates to a quality control method for power storage devices used in electronic devices, automobiles, etc., and more particularly to a method for managing the quality of power storage devices based on gas components generated from the power storage devices.

　近年、例えばリチウムイオン電池、電気二重層キャパシタ、アルミ電解コンデンサ等の大容量、高出力タイプの蓄電デバイスが実用化されている。この蓄電デバイスは、大容量、高出力であるがゆえに従来の蓄電デバイスよりも高い安全性、安定性が求められる。 In recent years, large-capacity, high-power storage devices such as lithium-ion batteries, electric double layer capacitors, and aluminum electrolytic capacitors have been put to practical use. This electricity storage device is required to have higher safety and stability than conventional electricity storage devices because of its large capacity and high output.

　この蓄電デバイスは、一般に正極体及び負極体が電解液とともに筐体内に封入されており、電極シートとセパレータとの積層体を、角型の場合にはサンドイッチ状に、円筒型の場合にはロール状にそれぞれ形成し、集電体としての正極体及び負極体のリード部を各々の端子に接続する。そして、上述したような各種形態の積層体をそれぞれの対応する形状の筐体に収容した後、筐体の開口部から電解液を注入して積層体に電解液を含浸し、正極体及び負極体の先端を外部に露出した状態で筐体に封入した構造を有する。 In this electricity storage device, generally, a positive electrode body and a negative electrode body are enclosed in a casing together with an electrolytic solution, and a laminate of an electrode sheet and a separator is sandwiched in the case of a square type, and rolled in the case of a cylindrical type. And the lead portions of the positive electrode body and the negative electrode body as current collectors are connected to the respective terminals. Then, after accommodating the laminated bodies of various forms as described above in respective correspondingly shaped casings, the electrolytic solution is injected from the opening of the casing to impregnate the laminated body with the electrolytic solution, and the positive electrode body and the negative electrode are formed. It has a structure in which the body tip is exposed to the outside and enclosed in a casing.

　上記蓄電デバイスに用いられる電解液としては、炭酸エチレンなどを含有する非水系電解液が用いられるが、蓄電デバイスのエネルギー密度を向上させるためには使用可能電圧を高めることが有効であることから、特に高い電圧で充放電可能な炭酸エステル系電解液が広く用いられている。 As the electrolytic solution used for the electricity storage device, a non-aqueous electrolyte solution containing ethylene carbonate or the like is used, but since it is effective to increase the usable voltage in order to improve the energy density of the electricity storage device, Particularly, carbonate ester-based electrolytic solutions that can be charged and discharged at a high voltage are widely used.

　このような非水系電解液を使用した蓄電デバイスでは、非水系電解液中に含まれる炭酸エステルが長期間の使用における充放電の繰り返し、過充電、あるいは短絡等の異常時の蓄電デバイス内部の温度上昇に起因して、劣化や電気分解をおこす。これにより蓄電デバイス内部でＣＯやＣＯ２などの炭酸ガス、メタン、エタンなどの炭化水素ガス、及びその他の非水系電解液ガスに起因したガスが発生することが報告されている。これらの発生ガスは、蓄電デバイスに使用する正極活物質や電解液、電解液添加剤、導電助剤、バインダなどに影響され、これらの品質状態により発生ガスが変化することが明らかになっている。 In an electricity storage device using such a non-aqueous electrolyte solution, the carbonic acid ester contained in the non-aqueous electrolyte solution is the temperature inside the electricity storage device during abnormalities such as repeated charge/discharge, overcharge, or short circuit during long-term use. It causes deterioration and electrolysis due to the rise. As a result, it has been reported that carbon dioxide gas such as CO and CO 2 , hydrocarbon gas such as methane and ethane, and other non-aqueous electrolyte gas are generated inside the electricity storage device. It has been clarified that these generated gases are affected by the positive electrode active material used for the electricity storage device, the electrolytic solution, the electrolytic solution additive, the conductive auxiliary agent, the binder, etc., and the generated gas changes depending on their quality state. ..

　上述したような蓄電デバイスの品質管理は、１回又は所定回数の製造ロットごとに任意の蓄電デバイスを抜き取り、各種電気的な特性の評価結果から品質の合否を判断することが行われており、それでも蓄電デバイスの変質に伴う発火や膨潤などのトラブルが時々発生しているのが現状である。すなわち、従来は各種電気的な特性のみで蓄電デバイスを評価しており、正極活物質や電解液、電解液添加剤、導電助剤、バインダの異常が発生ガスに及ぼす影響を考慮して蓄電デバイスの品質管理を行う方法は従来なかった。 In the quality control of the electricity storage device as described above, an arbitrary electricity storage device is extracted once or for each predetermined number of manufacturing lots, and the quality is judged from the evaluation results of various electrical characteristics. Even so, the current situation is that problems such as ignition and swelling sometimes occur due to the deterioration of the electricity storage device. That is, conventionally, the electricity storage device is evaluated only based on various electrical characteristics, and the electricity storage device is considered in consideration of the influence of abnormality of the positive electrode active material, the electrolytic solution, the electrolyte solution additive, the conductive auxiliary agent, and the binder on the generated gas. There has been no method for quality control in the past.

　本発明は上記課題に鑑みてなされたものであり、電子機器や自動車等に使用される蓄電デバイスから発生するガス成分に基づいて蓄電デバイスの品質を管理する方法を提供することを目的とする。 The present invention has been made in view of the above problems, and an object of the present invention is to provide a method for managing the quality of an electricity storage device based on a gas component generated from the electricity storage device used in electronic devices, automobiles, and the like.

　上記課題を解決するために本発明は、正常な蓄電デバイスから発生するガス成分を入手する基準ガス確定工程と、管理対象となる蓄電デバイスから発生するガス成分を分析する管理ガス分析工程と、前記管理ガス分析工程で分析した管理ガス成分と前記基準ガス確定工程で入手した基準ガス成分とを比較するガス成分の比較工程と、前記管理ガス成分が前記基準ガス成分との差異により管理対象となる蓄電デバイスの正常・異常を判断する品質判断工程と、前記品質判断工程で判断された蓄電デバイスの正常・異常を提示する提示工程とを備える蓄電デバイスの品質管理方法を提供する（発明１）。 In order to solve the above problems, the present invention provides a reference gas determination step of obtaining a gas component generated from a normal power storage device, a management gas analysis step of analyzing a gas component generated from a power storage device to be managed, and The control gas component analyzed in the control gas analysis process and the reference gas component obtained in the reference gas determination process are compared with each other, and the control gas component becomes a management target due to the difference between the control gas component and the reference gas component. There is provided a quality control method for an electricity storage device including a quality determination step of determining normality/abnormality of the electricity storage device and a presentation step of presenting normality/abnormality of the electricity storage device determined in the quality determination step (Invention 1).

　上記発明（発明１）によれば、顧客から正常な蓄電デバイスを入手してこの正常な蓄電デバイスから発生するガス成分をあらかじめ分析しておくなどして、基準となる正常なガス成分を知得しておき、その後管理対象となる蓄電デバイスを入手して発生するガス成分を分析して両者を比較し、その差異に基づいて蓄電デバイスの正常・異常を判断することで、蓄電デバイスのガスが発生による異常の可能性を察知し、出荷管理を行うことができる。 According to the above invention (Invention 1), a normal gas component as a reference can be obtained by, for example, obtaining a normal power storage device from a customer and analyzing a gas component generated from the normal power storage device in advance. Then, after obtaining the power storage device to be managed, analyzing the gas components generated, comparing the two, and judging whether the power storage device is normal or abnormal based on the difference, the gas of the power storage device is detected. It is possible to detect shipping abnormalities and perform shipping management.

　上記発明（発明１）においては、前記提示工程を電子端末で行うことが好ましい（発明２）。 In the above invention (Invention 1), it is preferable that the presentation step is performed by an electronic terminal (Invention 2).

　上記発明（発明２）によれば、顧客の担当者などが電子端末を携帯して、管理対象となる蓄電デバイスのガスの発生に基づく蓄電デバイスの正常・異常を顧客の面前で提示することができるので、蓄電デバイスからガスが発生することに起因する異常の可能性の判断に要する時間を短縮することが可能となり、蓄電デバイスの管理における判断を短時間で行うことができる。 According to the above invention (Invention 2), a person in charge of a customer, etc. can carry an electronic terminal and show the normality/abnormality of the power storage device based on the generation of gas in the power storage device to be managed in front of the customer. Therefore, it is possible to shorten the time required to determine the possibility of abnormality caused by the gas generation from the power storage device, and to make the determination in the management of the power storage device in a short time.

　上記発明（発明１，２）においては、前記品質判断工程が、あらかじめ作成した複数種の蓄電デバイスの前記基準ガス成分のデータベースに前記管理ガス成分を照合することにより判断することが好ましい（発明３）。 In the above inventions (Inventions 1 and 2), it is preferable that the quality determining step makes the determination by collating the management gas component with a database of the reference gas components of a plurality of types of power storage devices created in advance (Invention 3). ).

　上記発明（発明３）によれば、管理対象となる蓄電デバイスから発生するガス成分を分析したら、このガス成分情報をあらかじめ作成しておいた蓄電デバイスの基準ガス成分のデータベースに照合し、その差異に基づいてガスの発生に基づく蓄電デバイスの正常・異常を判断することができる。これにより蓄電デバイスの管理の判断を短時間で行うことができる。 According to the above invention (Invention 3), when the gas component generated from the power storage device to be managed is analyzed, this gas component information is collated with a database of reference gas components of the power storage device created in advance, and the difference is found. The normality/abnormality of the electricity storage device based on the generation of gas can be determined based on the above. As a result, it is possible to make a judgment on the management of the power storage device in a short time.

　上記発明（発明１～３）においては、前記提示工程が、前記蓄電デバイスの異常を提示する際には、蓄電デバイスの推定異常要因も提示することが好ましい（発明４）。 In the above inventions (Inventions 1 to 3), when the presentation step presents an abnormality of the power storage device, it is preferable to also present an estimated abnormality factor of the power storage device (Invention 4).

　上記発明（発明４）によれば、基準となる正常なガス成分と管理対象となる蓄電デバイスのガス成分を比較して、その成分の差異に応じて推定異常要因を特定し、顧客に提示することができるので、顧客は蓄電デバイスの製造工程における問題点を短時間で把握することができ、蓄電デバイスの適正化の期間を短縮することができる。 According to the above invention (Invention 4), a normal gas component serving as a reference is compared with a gas component of a power storage device to be managed, and an estimated abnormal factor is specified according to the difference in the component and presented to the customer. Therefore, the customer can grasp the problem in the manufacturing process of the power storage device in a short time, and the period for optimizing the power storage device can be shortened.

　上記発明（発明４）においては、前記蓄電デバイスの推定異常要因が、前記基準ガス成分に対する管理ガス成分の差異が異常原因と関連づけされた情報として前記データベースに記録してあることが好ましい（発明５）。 In the above invention (Invention 4), it is preferable that the estimated abnormality factor of the electricity storage device is recorded in the database as information in which a difference between the control gas component and the reference gas component is associated with the abnormality cause (Invention 5). ).

　上記発明（発明５）によれば、管理対象となる蓄電デバイスのガス成分をデータベースと照合するだけで、基準となる正常なガス成分との差異の内容に対応して推定異常要因を特定することができる。これにより顧客は蓄電デバイスの製造工程における問題点を迅速に把握することができるので、蓄電デバイスの適正化の期間を一層短縮することができる。 According to the above invention (Invention 5), it is possible to specify the estimated abnormal factor in correspondence with the content of the difference from the normal gas component serving as the reference only by collating the gas component of the power storage device to be managed with the database. You can As a result, the customer can quickly understand the problem in the manufacturing process of the power storage device, and thus the period for optimizing the power storage device can be further shortened.

　本発明は、正常な蓄電デバイスから発生するガス成分を知得しておき、その後管理対象となる蓄電デバイスを入手して発生するガス成分を分析することで両者を比較し、その差異に基づいて蓄電デバイスの正常・異常を判断することで、蓄電デバイスからガスが発生することに起因する異常の可能性を事前に顧客に提示することができるので、蓄電デバイスからガスが発生することに起因する異常を回避した出荷管理を行うことができる。 The present invention is to know the gas component generated from a normal power storage device, then compare the two by analyzing the gas component generated by obtaining the power storage device to be managed, based on the difference By determining the normality/abnormality of the electricity storage device, it is possible to present to the customer in advance the possibility of an abnormality resulting from the generation of gas from the electricity storage device. Shipment management that avoids abnormalities can be performed.

本発明の一実施形態による蓄電デバイスの品質管理方法の各工程の流れを示すフロー図である。It is a flow figure showing the flow of each process of the quality control method of the electrical storage device by one embodiment of the present invention. 上記実施形態の蓄電デバイスの品質管理方法における各工程の構成要素の相関関係を示す概略図である。It is a schematic diagram showing correlation of a component of each process in a quality control method of an electricity storage device of the above-mentioned embodiment.

　以下、本発明の一実施形態について添付図面を参照して詳細に説明する。 Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

　図１は本発明の一実施形態による蓄電デバイスの品質管理方法の各工程の流れを、図２は図１における各工程の構成要素の相関関係をそれぞれ示している。 FIG. 1 shows the flow of each step of the quality control method for an electricity storage device according to an embodiment of the present invention, and FIG. 2 shows the correlation of the components of each step in FIG.

（基準ガス確定工程）
　図１及び図２において、まず、管理対象となる蓄電デバイスであって正常なものから発生するガス（基準ガス）成分を入手する。この基準ガス成分の入手は、顧客Ｓからあらかじめガス成分情報として入手してもよいし、顧客Ｓから正常な蓄電デバイスＥを入手して、この蓄電デバイスＥに必要に応じて熱的負荷や電気的負荷を与えてガスを発生させ、発生するガスの成分を分析して、これを基準ガスとしてその成分を確定してもよい。この場合の発生するガスの分析は、顧客Ｓの客先において該顧客Ｓを訪問した担当者などがオンサイトで測定してもよいし、蓄電デバイスＥを持ち帰ってガス成分を発生させて分析してもよい。この際の分析手段としては、ガス成分を分析できる手段であれば制限はなく、ガスクロマトグラフィ、ガスセンサーあるいはガス検知管など汎用的なガス分析機器を用いればよい。 (Reference gas confirmation process)
In FIGS. 1 and 2, first, a gas (reference gas) component generated from a normal power storage device to be managed is obtained. The reference gas component may be obtained as gas component information from the customer S in advance, or a normal electricity storage device E may be obtained from the customer S and a thermal load or an electricity may be supplied to the electricity storage device E as necessary. The gas may be generated by applying a static load, the components of the generated gas may be analyzed, and the components may be determined using this as a reference gas. In this case, the generated gas may be analyzed on-site by a person in charge of the customer S who visited the customer S, or may be brought back to the electricity storage device E to generate a gas component and analyzed. You may. The analyzing means at this time is not limited as long as it can analyze the gas component, and a general-purpose gas analyzer such as a gas chromatography, a gas sensor or a gas detector tube may be used.

（管理ガス分析工程）
　次に顧客Ｓから管理対象となる蓄電デバイスＥを入手して、この蓄電デバイスＥに必要に応じて熱的負荷や電気的負荷を与えてガスを発生させ、発生するガス（管理ガス）成分を分析する。この管理ガスの分析は、前述した基準ガスの場合と同様に顧客Ｓの客先において顧客Ｓを訪問した担当者などがオンサイトで測定してもよいし、蓄電デバイスＥを持ち帰ってガス成分を発生させて分析してもよい。この際の分析手段としては、ガス成分を分析できる手段であれば制限はなく、ガスクロマトグラフィ、ガスセンサーあるいはガス検知管など汎用的なガス分析機器を用いればよい。 (Control gas analysis process)
Next, the power storage device E to be managed is obtained from the customer S, a thermal load or an electrical load is applied to the power storage device E as necessary to generate gas, and the generated gas (management gas) component is generated. analyse. As in the case of the reference gas described above, the management gas may be measured on-site by a person in charge of the customer S who visited the customer S, or the gas component may be taken back with the electricity storage device E. It may be generated and analyzed. The analyzing means at this time is not limited as long as it can analyze the gas component, and a general-purpose gas analyzer such as a gas chromatography, a gas sensor or a gas detector tube may be used.

（ガス成分の比較工程）
　管理対象となる蓄電デバイスＥから発生するガス成分を分析したら、得られた管理ガス成分と前述した基準ガス確定工程で確定した基準ガス成分とを比較する。このガス成分の比較は、例えば、複数種の蓄電デバイスＥの基準ガス成分のデータベースをあらかじめ作成しておき、このデータベースのデータと分析により得られた管理ガス成分とを照合すればよい。例えば、クラウドＣに複数種の蓄電デバイスＥの基準ガス成分のデータベースＤを記憶させておき、得られた管理ガス成分の組成を分析手段からクラウドＣに送信して、データベースＤとの照合を行うことにより行えばよい。この際、顧客Ｓの客先においてオンサイトで測定した場合には、顧客Ｓを訪問した担当者などが携帯するモバイルＰＣやタブレット型端末などの電子端末Ｉに測定結果を入力して、この電子端末Ｉから得られた管理ガス成分の組成をクラウドＣに送信して、データベースＤとの照合を行い、管理ガス成分と基準ガス成分とを比較すればよい。 (Comparison process of gas components)
After analyzing the gas component generated from the power storage device E to be managed, the obtained management gas component is compared with the reference gas component determined in the reference gas determination step described above. For comparison of the gas components, for example, a database of reference gas components of a plurality of types of power storage devices E may be created in advance, and the data in this database may be collated with the management gas components obtained by the analysis. For example, the database C of the reference gas components of the plurality of types of power storage devices E is stored in the cloud C, and the composition of the obtained management gas component is transmitted from the analysis means to the cloud C to collate with the database D. It can be done by doing so. At this time, when the customer S's customer makes an on-site measurement, the measurement result is input to the electronic terminal I such as a mobile PC or a tablet terminal carried by a person who visited the customer S, and The composition of the control gas component obtained from the terminal I may be transmitted to the cloud C, collated with the database D, and the control gas component and the reference gas component may be compared.

（品質判断工程）
　蓄電デバイスＥから発生するガス成分は、周囲の環境条件や各個体間の微妙な差異により、管理対象となる蓄電デバイスＥが正常であっても管理ガス成分は基準ガス成分とその組成比も含めて全く同じになることはほとんどない。そこで、管理ガス成分と基準ガス成分とを比較したら、基準ガス成分に対する管理ガス成分の差異が微差であるか優位差であるかにより、蓄電デバイスＥの品質の正常・異常を判断する。この正常・異常の閾値はガス成分の比率の差異とガス成分の組成の差異の両方の観点からあらかじめ設定しておけばよい。この管理ガス成分の差異による判断基準情報を前述したデータベースＤに格納しておけば、蓄電デバイスＥを特定して管理ガス成分情報をクラウドＣに送信するだけで、蓄電デバイスＥの管理における正常・異常の判断を短時間で行うことができる。 (Quality judgment process)
The gas component generated from the electricity storage device E includes the reference gas component and its composition ratio even if the electricity storage device E to be managed is normal due to surrounding environmental conditions and subtle differences among individual individuals. Is almost never the same. Therefore, when the management gas component and the reference gas component are compared, it is determined whether the quality of the electricity storage device E is normal or abnormal depending on whether the difference between the management gas component and the reference gas component is a slight difference or a significant difference. This normal/abnormal threshold may be set in advance from the viewpoint of both the difference in the ratio of gas components and the difference in the composition of gas components. If the judgment criterion information based on the difference in the management gas component is stored in the database D described above, it is possible to identify the power storage device E and send the management gas component information to the cloud C to determine whether the power storage device E is normally managed. It is possible to judge abnormality in a short time.

（提示工程）
　このようにして管理ガス成分に基づき蓄電デバイスＥの品質の正常・異常を判断したら、この判断結果を顧客Ｓに提示する。この蓄電デバイスＥの品質の正常・異常の提示は、ＦＡＸなどにより紙出力で顧客Ｓに提示してもよいし、顧客ＳのＰＣ端末に電子データとして送信してもよい。さらに、顧客Ｓを訪問した担当者などが携帯するモバイルＰＣやタブレット型端末などの電子端末Ｉにより表示させてもよい。これにより、顧客Ｓは異常なガスを発生ガスするおそれのある蓄電デバイスＥの出荷を未然に防止することができる。 (Presentation process)
In this way, when the normality/abnormality of the quality of the electricity storage device E is determined based on the management gas component, this determination result is presented to the customer S. The presentation of the normality/abnormality of the quality of the electricity storage device E may be presented to the customer S by paper output by FAX or the like, or may be transmitted to the PC terminal of the customer S as electronic data. Further, it may be displayed by an electronic terminal I such as a mobile PC or a tablet type terminal carried by a person in charge who visits the customer S. As a result, the customer S can prevent shipping of the electricity storage device E that may generate abnormal gas.

　この際、基準ガス成分に対する蓄電デバイスＥの管理ガス成分の差異と異常原因との関連性のデータをあらかじめ収集しておき、これをデータベースＤに記憶させておくことで、蓄電デバイスＥを特定して管理ガス成分情報を入力し、蓄電デバイスＥの品質の正常・異常を判断するとともに、推定異常要因を特定して提示するようにしてもよい。これにより顧客Ｓは蓄電デバイスＥの製造工程における問題点を迅速に把握することができるので、蓄電デバイスＥの適正化の期間を短縮することができる。 At this time, the data of the relationship between the difference between the control gas component of the electricity storage device E with respect to the reference gas component and the cause of the abnormality is collected in advance, and the data is stored in the database D to identify the electricity storage device E. Alternatively, the control gas component information may be input to determine whether the quality of the electricity storage device E is normal or abnormal, and the estimated abnormal cause may be specified and presented. As a result, the customer S can quickly understand the problem in the manufacturing process of the power storage device E, and thus the period for optimizing the power storage device E can be shortened.

　以上、本発明の蓄電デバイスの品質管理方法について、添付図面を参照して説明してきたが、本発明は前記実施形態に限定されず種々の変形実施が可能である。例えば、蓄電デバイスとしては、リチウムイオン電池、電気二重層キャパシタ、アルミ電解コンデンサなど種々のものに適用可能であり、その形状なども制限されるものではない。また、本発明の蓄電デバイスの品質管理は、製造ロッドごとなど製造数を基準として行ってもよいし、所定の機関ごとに行ってもよく、顧客Ｓとの契約により適宜決定すればよい。さらに、上記実施形態においては、クラウドＣを介して品質を判断したが、電子端末Ｉで直接判断するようにしてもよい。 Although the quality control method of the electricity storage device of the present invention has been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiment, and various modifications can be made. For example, the power storage device can be applied to various types such as a lithium ion battery, an electric double layer capacitor, and an aluminum electrolytic capacitor, and the shape thereof is not limited. Further, the quality control of the electricity storage device of the present invention may be performed on the basis of the number of products manufactured, such as for each manufactured rod, or may be performed for each predetermined organization, and may be appropriately determined according to the contract with the customer S. Furthermore, in the above embodiment, the quality is determined via the cloud C, but the quality may be determined directly by the electronic terminal I.

Ｓ　顧客
Ｅ　蓄電デバイス
Ｃ　クラウド
Ｄ　データベース
Ｉ　電子端末 S Customer E Storage device C Cloud D Database I Electronic terminal

Claims (5)

　正常な蓄電デバイスから発生するガス成分を入手する基準ガス確定工程と、
　管理対象となる蓄電デバイスから発生するガス成分を分析する管理ガス分析工程と、
　前記管理ガス分析工程で分析した管理ガス成分と前記基準ガス確定工程で入手した基準ガス成分とを比較するガス成分の比較工程と、
　前記管理ガス成分が前記基準ガス成分との差異により管理対象となる蓄電デバイスの正常・異常を判断する品質判断工程と、
　前記品質判断工程で判断された蓄電デバイスの正常・異常を提示する提示工程と
　を備える蓄電デバイスの品質管理方法。 A reference gas determination step of obtaining a gas component generated from a normal power storage device,
A management gas analysis step of analyzing gas components generated from the power storage device to be managed,
A gas component comparison step of comparing the control gas component analyzed in the control gas analysis step with the reference gas component obtained in the reference gas determination step;
A quality determination step of determining normality/abnormality of the power storage device to be managed based on the difference between the control gas component and the reference gas component,
And a presentation step of presenting the normality/abnormality of the power storage device judged in the quality judgment step. 　前記提示工程を電子端末で行う、請求項１に記載の蓄電デバイスの品質管理方法。 The quality control method for an electricity storage device according to claim 1, wherein the presentation step is performed by an electronic terminal. 　前記品質判断工程が、あらかじめ作成した複数種の蓄電デバイスの前記基準ガス成分のデータベースに前記管理ガス成分を照合することにより判断する、請求項１又は２に記載の蓄電デバイスの品質管理方法。 The quality control method for an electricity storage device according to claim 1 or 2, wherein the quality determination step makes a determination by collating the management gas component with a database of the reference gas components of a plurality of types of electricity storage devices created in advance. 　前記提示工程が、前記蓄電デバイスの異常を提示する際には、蓄電デバイスの推定異常要因も提示する、請求項１～３のいずれか一項に記載の蓄電デバイスの品質管理方法。 The quality control method for an electricity storage device according to any one of claims 1 to 3, wherein when the presenting step presents an abnormality of the electricity storage device, an estimated abnormality factor of the electricity storage device is also presented. 　前記蓄電デバイスの推定異常要因が、前記基準ガス成分に対する管理ガス成分の差異が異常原因と関連づけされた情報として前記データベースに記録してある、請求項４に記載の蓄電デバイスの品質管理方法。 The quality control method for an electricity storage device according to claim 4, wherein the estimated abnormality factor of the electricity storage device is recorded in the database as information in which a difference in a control gas component with respect to the reference gas component is associated with an abnormality cause.
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