WO2012091432A2 - Procédé et dispositif pour calculer l'état de santé d'une batterie secondaire - Google Patents

Procédé et dispositif pour calculer l'état de santé d'une batterie secondaire Download PDF

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Publication number
WO2012091432A2
WO2012091432A2 PCT/KR2011/010192 KR2011010192W WO2012091432A2 WO 2012091432 A2 WO2012091432 A2 WO 2012091432A2 KR 2011010192 W KR2011010192 W KR 2011010192W WO 2012091432 A2 WO2012091432 A2 WO 2012091432A2
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WO
WIPO (PCT)
Prior art keywords
secondary battery
battery
remaining life
calculating
charge
Prior art date
Application number
PCT/KR2011/010192
Other languages
English (en)
Korean (ko)
Other versions
WO2012091432A3 (fr
Inventor
조동호
김종우
서동관
김종돈
Original Assignee
한국과학기술원
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 한국과학기술원 filed Critical 한국과학기술원
Publication of WO2012091432A2 publication Critical patent/WO2012091432A2/fr
Publication of WO2012091432A3 publication Critical patent/WO2012091432A3/fr

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Classifications

    • 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
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
    • G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
    • G01R19/16542—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies for batteries
    • 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]
    • G01R31/3644—Constructional arrangements
    • G01R31/3648—Constructional arrangements comprising digital calculation means, e.g. for performing an algorithm
    • 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]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • G01R31/3828—Arrangements for monitoring battery or accumulator variables, e.g. SoC using current integration
    • 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]
    • G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
    • 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
    • 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

Definitions

  • Batteries are indispensable for mobile devices such as mobile phones, and other systems that require minimal power and have residual power.
  • the application of secondary battery batteries has been diversified, and thus their use and scope of application are growing. Therefore, the field of developing a battery operating device capable of optimizing, managing and operating a battery has also made a great leap with the development of secondary batteries.
  • FIG. 1 illustrates a battery management system (BMS) installed as a package in a battery device.
  • BMS battery management system
  • the main function is to manage a plurality of batteries constituting a pack, and includes battery state information, defect information, and values of respective physical parameters. Share and monitor to your users.
  • FIG. 2 illustrates an example of logic for calculating a state of health (SOH) of a battery.
  • SOH state of health
  • the remaining life of the battery (SOH) is calculated using parameters such as internal resistance, residual capacity (SOC), and conductance of the battery. Calculated.
  • SOH state of health
  • SOC residual capacity
  • the battery remaining capacity (SOC) is measured (S30) to determine whether the battery remaining capacity (SOC) is 0% (S50). If the battery remaining capacity SOC is 0%, 1 is added to the number of charge / discharge cycles (S70). Subsequently, the battery remaining life (SOH) is calculated (S90). If the initial value is not set in step S10, the battery remaining capacity (SOC) state is input (S110) and the battery remaining capacity (SOC) is measured (S130) to determine whether the battery remaining capacity (SOC) is 0% (S150). )do. When the battery remaining capacity SOC is 0%, 1 is added to the number of charge and discharge cycles (S170).
  • step S150 if the battery remaining capacity (SOC) is not 0%, the state of the battery remaining capacity (SOC) is input (S210) and the remaining battery remaining capacity (SOC) is received. To calculate (S230). If the remaining battery SOC is 0% (S250), and if the remaining battery SOC is 0%, the charge amount is calculated (S270), and then the charge amount is 100% (S290). When the remaining battery SOC is not 0% in step S250 or when the charge amount is not 100% in step S290, step S130 is performed to measure the battery remaining capacity SOC. When the amount of charge in step S290 is 100%, steps S170 and S190 are performed to calculate the battery remaining life (SOH) after adding 1 to the number of charge and discharge cycles.
  • Rechargeable secondary batteries have a limited degree of use, which is called the remaining life of the battery (SOH).
  • SOH the remaining life of the battery
  • the remaining life of a battery varies depending on the physical properties of the battery and the environment in which it is used.
  • BMS battery management system
  • BMS battery management system
  • the present invention was devised to solve such a problem, and it is possible to accurately determine the remaining battery life of an incorrect battery by studying which battery parameters are used, which operations are performed, and how the data can be updated / maintained and monitored.
  • An object of the present invention is to provide a method and apparatus for calculating the remaining life of a secondary battery.
  • the method for calculating the remaining life of a secondary battery for achieving the above object, (a) calculating the amount of current of the secondary battery by accumulating charge and discharge current of the secondary battery; (b) checking the charge / discharge state of the secondary battery by performing charge / discharge or no load state inspection of the secondary battery; And (c) calculating the remaining life of the secondary battery using the current amount of the secondary battery calculated in the step (a) when the charging and discharging of the secondary battery is terminated in the step (b). .
  • the present invention it is possible to accurately calculate / derive the remaining life of the secondary battery based on the charge / discharge amount differently from the conventional method in accurately calculating / deriving the remaining life of the secondary battery.
  • BMS battery management system
  • BMS battery management system
  • SOH remaining life
  • FIG. 3 is a diagram illustrating a method for calculating battery remaining capacity (SOH) of a battery management system according to an exemplary embodiment of the present invention.
  • the charging / discharging current amount is used among the parameters of the data obtained to improve the accuracy of the remaining life of the battery, which defines full charging and full discharging as one cycle of remaining life. This is due to the concept of Deep of Discharge (DOD).
  • DOD Deep of Discharge
  • a sensor for acquiring a charge / discharge current of the battery is turned on to obtain a charge / discharge current value ( S30).
  • the obtained data is A / D converted (S50) and decoded by the BMS controller (S70).
  • the current value takes an absolute value irrespective of charge / discharge and performs current integration S90 as a first-order operation. That is, battery charge / discharge current integration is used as a parameter for SOH calculation / derivation.
  • the battery management system checks whether the battery is being charged or discharged by performing two types of state checks based on the current value: charge / discharge or no load.
  • the battery management system BMS calculates the amount of current by continuously performing the first operation of step S90 when charging / discharging. However, when the charging / discharging ends in the no-load state, the first operation is stopped and the second operation for calculating the remaining life is performed (S130). That is, after checking whether the charge / discharge is finished, the second operation is performed to calculate the remaining life by the amount of current accumulated as an absolute value.
  • the remaining life is calculated by dividing the amount of charge / discharge current accumulated in Equation 2 by the sum of battery charge / discharge current capacities and subtracting from the total life cycle of the battery. That is, by dividing the accumulated charge / discharge current amount by the battery full charge / discharge amount and subtracting by the recently updated remaining life, the remaining life of the currently available battery can be known.
  • the user can manage the performance of the battery, so that it is possible to maintain and secure the optimum performance for battery use.

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

Abstract

L'invention porte sur un procédé pour calculer l'état de santé d'une batterie secondaire, lequel procédé comprend les étapes suivantes, consistant à : (a) calculer la quantité de courant de la batterie secondaire par l'intégration de courants de charge/décharge de la batterie secondaire ; (b) vérifier l'état de charge/décharge de la batterie secondaire par inspection de l'état de charge/décharge ou de l'état de non charge de la batterie secondaire ; et (c) calculer l'état de santé de la batterie secondaire par l'utilisation de la quantité de courant dans la batterie secondaire, qui est calculée à partir de l'étape (a), quand la charge/décharge de la batterie secondaire de l'étape (b) est achevée. Selon la présente invention, un calcul/une déduction précis de l'état de santé de la batterie secondaire est permis sur la base des quantités de charge/décharge, contrairement aux procédés existants consistant à calculer/déduire avec précision l'état de santé de la batterie secondaire.
PCT/KR2011/010192 2010-12-29 2011-12-28 Procédé et dispositif pour calculer l'état de santé d'une batterie secondaire WO2012091432A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2010-0137576 2010-12-29
KR1020100137576A KR101841044B1 (ko) 2010-12-29 2010-12-29 2차 전지의 잔존수명 연산 방법 및 장치

Publications (2)

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WO2012091432A2 true WO2012091432A2 (fr) 2012-07-05
WO2012091432A3 WO2012091432A3 (fr) 2012-10-04

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KR (1) KR101841044B1 (fr)
WO (1) WO2012091432A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103293487A (zh) * 2013-06-28 2013-09-11 哈尔滨工业大学 基于集成模型的锂离子电池寿命预测方法
CN105891721A (zh) * 2016-04-01 2016-08-24 深圳市清友能源技术有限公司 一种电池管理系统的soc检测方法及检测装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040033220A (ko) * 2002-10-11 2004-04-21 삼성전자주식회사 복합 단말기에서 동작 모드에 따른 배터리 가용 시간 알림방법
KR20060058983A (ko) * 2004-11-26 2006-06-01 주식회사 파워로직스 배터리의 잔존용량 산출방법
KR20080028161A (ko) * 2006-09-26 2008-03-31 삼성에스디아이 주식회사 배터리 관리 시스템 및 그 구동방법
KR20090077657A (ko) * 2008-01-11 2009-07-15 에스케이에너지 주식회사 배터리 관리 시스템에서 배터리의 ｓｏｃ 측정 방법 및 장치

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004222433A (ja) 2003-01-16 2004-08-05 Hitachi Unisia Automotive Ltd ハイブリッド車両の制御装置
JP2005164604A (ja) * 2004-12-17 2005-06-23 Hitachi Battery Hanbai Service Kk 蓄電池の監視装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040033220A (ko) * 2002-10-11 2004-04-21 삼성전자주식회사 복합 단말기에서 동작 모드에 따른 배터리 가용 시간 알림방법
KR20060058983A (ko) * 2004-11-26 2006-06-01 주식회사 파워로직스 배터리의 잔존용량 산출방법
KR20080028161A (ko) * 2006-09-26 2008-03-31 삼성에스디아이 주식회사 배터리 관리 시스템 및 그 구동방법
KR20090077657A (ko) * 2008-01-11 2009-07-15 에스케이에너지 주식회사 배터리 관리 시스템에서 배터리의 ｓｏｃ 측정 방법 및 장치

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103293487A (zh) * 2013-06-28 2013-09-11 哈尔滨工业大学 基于集成模型的锂离子电池寿命预测方法
CN103293487B (zh) * 2013-06-28 2015-09-09 哈尔滨工业大学 基于集成模型的锂离子电池寿命预测方法
CN105891721A (zh) * 2016-04-01 2016-08-24 深圳市清友能源技术有限公司 一种电池管理系统的soc检测方法及检测装置

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Publication number Publication date
WO2012091432A3 (fr) 2012-10-04
KR20120075756A (ko) 2012-07-09
KR101841044B1 (ko) 2018-03-22

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