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WO2017110662A1 - Pile lithium-ion - Google Patents

Pile lithium-ion Download PDF

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Publication number
WO2017110662A1
WO2017110662A1 PCT/JP2016/087468 JP2016087468W WO2017110662A1 WO 2017110662 A1 WO2017110662 A1 WO 2017110662A1 JP 2016087468 W JP2016087468 W JP 2016087468W WO 2017110662 A1 WO2017110662 A1 WO 2017110662A1
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WO
WIPO (PCT)
Prior art keywords
lithium ion
secondary battery
ion secondary
resistance
positive electrode
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.)
Ceased
Application number
PCT/JP2016/087468
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English (en)
Japanese (ja)
Inventor
野家　明彦
鈴木　修一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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Filing date
Publication date
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Publication of WO2017110662A1 publication Critical patent/WO2017110662A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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]
    • 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
    • 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
    • H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from 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
    • 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 system for simultaneously detecting the battery temperature of lithium ion batteries and capacitors and the deterioration state of electrodes, and a control system for adjusting charge / discharge conditions based on detection signals.
  • Resin microporous membrane separators are used for electrical insulation between the positive and negative electrodes of lithium ion batteries and capacitors.
  • the hole of the separator is closed, the movement of ions is blocked, and the current is cut off (shutdown).
  • the shutdown of the separator occurs near the melting point of the microporous membrane, and occurs from the inner peripheral side of the battery having a high temperature toward the outer peripheral side having a low temperature.
  • the resistance between the positive and negative electrodes increases sharply due to the closing of the separator due to the shutdown.
  • An increase in battery temperature can be detected by measuring the resistance between the battery and the positive and negative electrodes of the capacitor.
  • the positive electrode or the negative electrode gradually deteriorates, and the battery capacity decreases with respect to the initial value.
  • the decrease in battery capacity occurs when the positive electrode, negative electrode, and electrolytic solution deteriorate and resistance increases.
  • Patent Document 1 proposes a means for detecting the internal resistance of the secondary battery and a control method for providing a discharge stop period when the detected value exceeds a threshold value.
  • Patent Document 2 proposes a charge / discharge system that detects the internal resistance of a secondary battery and changes the charge / discharge voltage according to the detected value of the internal resistance.
  • Patent Documents 1 and 2 are systems in which a deterioration state of the entire battery is detected from a change in the internal resistance of the battery, and charge / discharge conditions are adjusted based on the detected value.
  • the resistance is measured between the positive terminal and the negative terminal. Since this resistance value is the average value of the resistance between the positive electrode terminal and the negative electrode terminal, the partial deterioration is advanced, and even if the resistance is increased, this partial deterioration cannot be detected and controlled.
  • the above-described method has a problem that the battery deterioration in the inner peripheral portion further proceeds and the battery life is shortened.
  • the present invention is to extend the life of the battery by controlling in consideration of partial deterioration inside the battery.
  • the lithium ion secondary battery has first resistance calculation means for calculating a resistance between the positive electrode external terminal and the negative electrode
  • the positive electrode has a long side Divided in a direction, having an inner peripheral positive electrode and an outer peripheral positive electrode, and having a second resistance calculating means for calculating a resistance between the inner peripheral positive electrode or the outer peripheral positive electrode and the negative electrode
  • the output of the lithium ion secondary battery is a lithium ion secondary battery system determined using the measurement result of the first resistance measurement unit and the measurement result of the second resistance measurement unit.
  • the lithium ion secondary battery has first resistance calculation means for calculating a resistance between the positive electrode external terminal and the negative electrode
  • the negative electrode has a long side Divided in a direction, having an inner peripheral negative electrode and an outer peripheral negative electrode, and having a second resistance calculating means for calculating a resistance between the inner peripheral negative electrode or the outer peripheral negative electrode and the negative electrode
  • the output of the lithium ion secondary battery is a lithium ion secondary battery system determined using the measurement result of the first resistance measurement unit and the measurement result of the second resistance measurement unit.
  • the lifetime of the battery can be extended by controlling in consideration of partial deterioration inside the battery.
  • FIG. 1 is a schematic diagram of a lithium ion secondary battery 100 and a resistance measurement / control system.
  • the lithium ion secondary battery 100 has a structure in which a wound body 7 is inserted into a battery can 6.
  • the wound body 7 has a structure in which a positive electrode and a negative electrode are stacked via a separator for electrical insulation and wound.
  • the wound body 7 is sealed in the battery can 6 in a state of being impregnated with a water-insoluble electrolyte.
  • the positive electrode is obtained by, for example, applying a positive electrode active material such as LiCoO2 mixed with a conductive agent and a binder on an aluminum foil.
  • a positive electrode active material such as LiCoO2 mixed with a conductive agent and a binder
  • LiCoO 2 is used as the positive electrode active material, but lithium metal transition oxides such as LiNiO 2, LiMnO 2, and LiNiCoMnO 2 can also be used.
  • the negative electrode is obtained, for example, by coating graphite particles as a negative electrode active material mixed with a binder on a copper foil.
  • graphite particles a mixed material of Si, SiO, and graphite can be used as the negative electrode active material.
  • a resin microporous film in which polypropylene (PP) and polyethylene (PE) materials are laminated can be used for the separator for electrical insulation.
  • LiPF6 was used as the electrolyte of the water-insoluble electrolyte
  • a known electrolyte such as LiBF4 can be used.
  • a solvent for the electrolytic solution a mixture of ethylene carbonate (EC), dimethyl carbonate (DMC), and ethylene carbonate (EMC) was used. Other common solvents can be used.
  • the outer peripheral side positive electrode tab 4 and the inner peripheral side positive electrode tab 5 are attached to the positive electrode toward the outside of the lithium ion secondary battery 100.
  • the outer peripheral side positive electrode tab 4 is connected to the outer peripheral side positive electrode terminal 1
  • the inner peripheral side positive electrode tab 5 is connected to the inner peripheral side positive electrode terminal 3.
  • the outer peripheral side positive terminal 1 and the inner peripheral side positive terminal 3 are insulated by the electrical insulating layer 2.
  • the negative electrode side is composed of one electrode as in the conventional unit cell.
  • the outer peripheral side positive terminal 1 and the inner peripheral side positive terminal 3 are connected at the extended joining point, and an outer ammeter 10a is provided between the outer peripheral side positive terminal 1 and the joining point.
  • An inner ammeter 10 b is provided between the inner peripheral positive electrode terminal 3 and the inner peripheral positive electrode terminal 3.
  • the outer ammeter 10a measures a current I1 flowing between the outer peripheral positive electrode and the negative electrode.
  • the system having the lithium ion secondary battery 100 has first resistance calculation means for obtaining the resistance of the lithium ion secondary battery 100 from this current value.
  • the inner ammeter 10b measures a current I2 flowing between the inner peripheral positive electrode and the negative electrode.
  • the lithium ion secondary battery system having the lithium ion secondary battery 100 has a second resistance calculation means for obtaining a resistance value from this current value.
  • the first resistance calculation means and the second resistance calculation means can be provided in the resistance extension circuit 9, for example.
  • Example 1 the outer ammeter 10a is provided between the outer peripheral side positive terminal 1 and the joining point, but the outer ammeter 10a is provided at the tip of the joining point, and the current as the whole battery may be used. .
  • FIG. 2 is a development conceptual diagram of the wound body 7 and a diagram showing a resistance measurement method.
  • FIG. 2 shows a conceptual diagram of the resistance measurement system of Example 1.
  • FIG. 2 shows a state in which the wound body 7 enclosed in the battery can 6 is expanded.
  • the wound body 17 has a structure in which the positive electrode 101, the negative electrode 16, and the separator 15 are stacked and wound.
  • the positive electrode 101 is divided into an outer peripheral side positive electrode 12 and an inner peripheral side positive electrode 14, and the outer peripheral side positive electrode 12 and the inner peripheral side positive electrode 14 are bonded in a state of being electrically insulated by an insulating tape 13.
  • the electrically insulating tape 13 is stable with respect to the electrolyte component and has a high heat resistance, and an imide tape or the like is used.
  • the separator 15 and the negative electrode 16 are each one like a normal lithium ion secondary battery.
  • the lithium ion secondary battery 100 is a parallel circuit composed of the outer peripheral side positive electrode 12 and the negative electrode 16 and the inner peripheral side positive electrode 14 and the negative electrode 16.
  • a current I1 flows between the outer peripheral positive electrode 12 and the negative electrode 16
  • a current I2 flows between the inner peripheral positive electrode 14 and the negative electrode 16.
  • the separator 15 inserted between the positive electrode and the negative electrode for electrical insulation is a microporous film made of resin.
  • the pores in the film where lithium ions move are blocked and current flows. Disappears (shutdown).
  • shutdown occurs from the inner peripheral side of the separator toward the outer peripheral side. Since the current stops flowing due to the shutdown, the resistance between the positive electrode and the negative electrode greatly increases. In the early stage of temperature rise of the battery, the resistance between the inner peripheral positive electrode 14 and the negative electrode 16 increases, and then the resistance between the outer peripheral positive electrode 12 and the negative electrode 16 increases.
  • the deterioration degree of the battery can be determined from the comparison of the resistance increase inside the battery and the resistance increase outside the battery. Judgment can be made and the output of the battery can be determined.
  • the electrode gradually deteriorates and the resistance between the positive and negative electrodes increases.
  • the battery is charged / discharged under a condition where the ambient temperature is high, the deterioration proceeds more remarkably.
  • the temperature on the inner peripheral side is higher than that on the outer peripheral side. Therefore, when the battery is continuously charged and discharged, the deterioration progresses from the inner peripheral side and the resistance between the positive and negative electrodes increases.
  • the current values I1 and I2 detected by the resistance measurement system of FIG. 2 are sent to the resistance calculation circuit 9 by the current signal line 19 of FIG. 1, and the voltage V applied between the positive and negative electrodes of the battery is sent by the voltage signal line 20.
  • the outer peripheral electrode resistance R1 and the inner peripheral electrode resistance R2 are obtained from the voltage V and the currents I1 and I2.
  • the outer peripheral electrode resistance R1 can be obtained from the current value I1 between the outer peripheral positive electrode 12 and the negative electrode 16 and V obtained by the voltmeter 11.
  • the inner circumference side electrode resistance R2 can be obtained from the current value I2 between the inner circumference side positive electrode 14 and the negative electrode 16 and V obtained by the voltmeter 11.
  • the range of the resistance value indicated by the inner peripheral side electrode resistance R2 can be set as appropriate.
  • the insulating tape 13 is preferably provided, for example, on the inner side of the wound body 7 from the center in the long side direction of the positive electrode or the negative electrode of the wound body 7. Since the temperature inside the winding body 7 tends to rise easily and the resistance rises greatly due to deterioration, the resistance inside the lithium ion secondary battery 100 rises by detecting the internal resistance value as the inner electrode resistance R2. Can be detected.
  • FIG. 3 is a diagram showing the relationship between R1 and R2 and time.
  • R1 and R2 can be stored with time change, respectively, and the resistance increase amounts ⁇ R1 and ⁇ R2 with respect to the respective times of R1 and R2 can be obtained from this information.
  • ⁇ R1 indicates an increase in resistance on the outside of the battery. Since the temperature on the outside of the battery is relatively difficult to rise, the deterioration due to the temperature rise is not as great as the inside. Therefore, the main cause of the increase in ⁇ R1 resistance is due to the deterioration of the electrode.
  • the time change ⁇ R1 of resistance due to electrode deterioration is very gradual with respect to time. For example, the resistance increases in the span of monthly or yearly units.
  • the main cause of the resistance change ⁇ R2 due to the temperature rise of the battery is due to the shutdown by the separator due to the temperature rise, and the resistance increases in a span of about several tens of seconds.
  • the state of the battery can be discriminated by using the difference in the temporal change of the interelectrode resistance due to the electrode deterioration and the battery temperature rise.
  • the charge / discharge conditions can be adjusted by the control circuit 8 based on the resistance increase amount with respect to time.
  • ⁇ R2 is large, it is considered that the battery temperature has risen rapidly, and thus measures such as cutting off the current in a short time are necessary.
  • Example 1 when the resistance change amount ⁇ R2 with respect to time reaches a predetermined value, control is performed such as lowering the output of the lithium ion secondary battery 100 or issuing an alarm.
  • control is performed such as lowering the output of the lithium ion secondary battery 100 or issuing an alarm.
  • the above control can be performed when any one of the resistance change amounts ⁇ R1 and ⁇ R2 reaches a predetermined value provided for each.
  • a predetermined value for ⁇ R1 it is possible to control not only the local deterioration due to the temperature rise inside the battery but also the aging deterioration of the entire battery.
  • ⁇ R1 rises it is considered that it is due to electrode deterioration, so that the operation is changed to relaxed charge / discharge conditions such as narrowing the charge / discharge current and operating voltage range so as to suppress the progress of deterioration as much as possible.
  • the battery can be used for a longer period.
  • thermocouple As a method for detecting only the rise in battery temperature, a configuration in which a thermocouple is inserted into the wound body of the battery has been proposed, but for grasping the deterioration state of the electrode, if the temperature rise due to resistance change becomes small Therefore, it is difficult to use for grasping the state of both battery temperature and electrode deterioration as in the present invention.
  • the resistance measurement unit of Example 1 needs to electrically insulate the inner peripheral side electrode and the outer peripheral side electrode separately, but otherwise the conventional battery structure has the inner peripheral side positive tab 5, the inner peripheral side positive terminal 3, and the current. It can be easily configured by adding the measurement line 19. It has been found that the battery safety can be improved and the service life can be extended with a relatively simple system configuration.
  • the battery 1 can also be used as a performance evaluation system for positive electrodes and separators. By changing the rate at the time of overcharging of the battery and evaluating the time change of the resistance between the positive and negative electrodes at that time, it is possible to evaluate the shutdown characteristics under battery mounting conditions that are closer to practical use than the separator alone.
  • the positive electrode when tests such as long-term charge / discharge and high-temperature storage are performed, the battery system has been evaluated for the difference in electrode deterioration between the high temperature inner peripheral positive electrode and the low temperature outer peripheral positive electrode. it can.
  • FIG. 4 is a schematic diagram of a lithium ion secondary battery 100 and a resistance measurement / control system according to the second embodiment.
  • Example 2 has a structure in which the negative electrode is divided into two parts, an inner peripheral side (inner peripheral negative electrode tab 18) and an outer peripheral side (outer peripheral negative electrode tab 17).
  • An insulating tape is provided between the inner peripheral negative electrode tab 18 and the outer peripheral negative electrode tab 17 in the same manner as the positive electrode of Example 1.
  • As the positive electrode a normal electrode that is not separated into two can be used.
  • the inner peripheral negative electrode tab 18 and the outer peripheral negative electrode tab 17 protrude from the lithium ion secondary battery 100. Unlike Example 1, the ammeter 10 is provided on the negative electrode side.
  • the outer peripheral negative electrode tab 17 and the inner peripheral negative electrode tab 18 are connected at the extended joining point, and an outer ammeter 10a is provided between the outer peripheral negative electrode tab 17 and the joining point.
  • An inner ammeter 10 b is provided between the tab 18.
  • the outer ammeter 10a measures a current I1 flowing between the outer peripheral negative electrode and the positive electrode.
  • the system having the lithium ion secondary battery 100 has first resistance calculation means for obtaining the resistance of the lithium ion secondary battery 100 from this current value.
  • the inner ammeter 10b measures a current I2 flowing between the inner negative electrode and the positive electrode.
  • the lithium ion secondary battery system having the lithium ion secondary battery 100 has a second resistance calculation means for obtaining a resistance value from this current value.
  • the first resistance calculation means and the second resistance calculation means can be provided in the resistance extension circuit 9, for example.
  • the outer ammeter 10a is provided between the outer peripheral negative electrode tab 17 and the junction, but the outer ammeter 10a may be provided at the end of the junction and the current of the entire battery may be used.
  • the temperature rise of the battery and the early detection of the deterioration state of the electrode can be performed as in the first embodiment.
  • the system shown in FIG. 4 can also be used for evaluating the characteristics of the negative electrode of the battery.
  • evaluation is performed by tests such as charge / discharge and high-temperature storage, and the battery system can be evaluated for the difference in deterioration between the inner peripheral negative electrode having a high temperature and the outer peripheral negative electrode having a low temperature.
  • FIG. 5 is a schematic diagram of the lithium ion secondary battery 100 and the resistance measurement / control system of Example 3.
  • FIG. 5 shows a resistance measurement system of a lithium ion battery module (MD).
  • the lithium ion battery MD can be constituted by, for example, a 5 ⁇ 5 lithium ion single battery.
  • a lithium ion battery to which a resistance measurement system is applied is installed at the center of the lithium ion battery MD and at each corner.
  • the lithium ion battery MD has an arrangement in which the space between the single cells is made as small as possible as shown in FIG. As a result, a temperature distribution is generated in the battery MD, the corner battery temperature is low, and the center battery temperature is high. When the MD is overcharged and the overall temperature rises, the central cell temperature is the highest.
  • the temperature rise due to overcharge of the MD is quickly detected and fed back to the control system to reduce or cut off the charge / discharge current to the MD.
  • the safety of the battery MD can be ensured.
  • the target operating life can be achieved by estimating the deterioration state of the single cells constituting the module from the resistance change of the single cells installed in the center of the MD and adjusting the charge / discharge conditions. It becomes possible.
  • FIG. 6 shows a comparative example 1 of the resistance measurement system with respect to the first embodiment.
  • Comparative Example 1 is a configuration in which the positive electrode and the negative electrode are each formed without being divided, and the current and resistance of the lithium ion secondary battery 100 are obtained only by the current flowing between the positive electrode and the negative electrode.
  • the resistance obtained only by the current flowing between the positive and negative electrodes shows R1 in Example 1, and the resistance increase amount is the same as that of ⁇ R1.
  • This resistance change is evaluated as an average of resistance changes of the lithium ion secondary battery 100.
  • the separator In the early stage of the battery temperature rise, the separator is likely to shut down from the inner periphery where the temperature is high, and the resistance may partially increase. However, in the outer peripheral portion, such a resistance increase due to the shutdown of the separator hardly occurs, and the overall resistance increase is not so remarkable.
  • the deterioration state of the battery is evaluated by the average resistance value of the lithium ion secondary battery 100 as a whole, the deterioration of the battery on the inner peripheral side is more advanced when the resistance change reaches a predetermined value.
  • the charge / discharge conditions are adjusted based on the resistance value, there is a possibility that a predetermined battery life cannot be achieved due to electrode deterioration.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Secondary Cells (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Tests Of Electric Status Of Batteries (AREA)

Abstract

La présente invention permet de prolonger la durée de vie d'une pile par commande de la pile en considération d'une détérioration partielle de l'intérieur de la pile. Un système de pile rechargeable lithium-ion est décrit selon lequel : une pile rechargeable lithium-ion comprend un premier moyen de calcul de résistance pour calculer la résistance entre une électrode négative et une borne externe d'électrode positive ; une électrode positive est divisée dans la direction longitudinale et comprend une électrode positive côté circonférence intérieure et une électrode positive côté circonférence extérieure ; le système de pile rechargeable lithium-ion comprend un second moyen de calcul de résistance pour calculer la résistance entre l'électrode négative et l'électrode positive côté circonférence intérieure ou l'électrode positive côté circonférence extérieure ; et la sortie de la pile rechargeable lithium-ion est déterminée à l'aide du résultat de mesure du premier moyen de mesure de résistance et du résultat de mesure du second moyen de mesure de résistance.
PCT/JP2016/087468 2015-12-25 2016-12-16 Pile lithium-ion Ceased WO2017110662A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-252806 2015-12-25
JP2015252806A JP2019062581A (ja) 2015-12-25 2015-12-25 リチウムイオン電池

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WO2017110662A1 true WO2017110662A1 (fr) 2017-06-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115201704A (zh) * 2022-07-29 2022-10-18 广东利元亨智能装备股份有限公司 一种锂电池测试系统及方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1173994A (ja) * 1997-08-29 1999-03-16 Sanyo Electric Co Ltd リチウム二次電池
JPH11120990A (ja) * 1997-10-14 1999-04-30 Ngk Insulators Ltd リチウム二次電池
JP2009176582A (ja) * 2008-01-25 2009-08-06 Hitachi Maxell Ltd 非水電解液二次電池

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1173994A (ja) * 1997-08-29 1999-03-16 Sanyo Electric Co Ltd リチウム二次電池
JPH11120990A (ja) * 1997-10-14 1999-04-30 Ngk Insulators Ltd リチウム二次電池
JP2009176582A (ja) * 2008-01-25 2009-08-06 Hitachi Maxell Ltd 非水電解液二次電池

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115201704A (zh) * 2022-07-29 2022-10-18 广东利元亨智能装备股份有限公司 一种锂电池测试系统及方法

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