WO2009017009A1 - Voltage equalizer of assembled battery - Google Patents

Voltage equalizer of assembled battery Download PDF

Info

Publication number
WO2009017009A1
WO2009017009A1 PCT/JP2008/063200 JP2008063200W WO2009017009A1 WO 2009017009 A1 WO2009017009 A1 WO 2009017009A1 JP 2008063200 W JP2008063200 W JP 2008063200W WO 2009017009 A1 WO2009017009 A1 WO 2009017009A1
Authority
WO
WIPO (PCT)
Prior art keywords
voltage
threshold
assembled battery
vbst
single cell
Prior art date
Application number
PCT/JP2008/063200
Other languages
French (fr)
Japanese (ja)
Inventor
Hitoshi Sakai
Original Assignee
Toyota Jidosha Kabushiki Kaisha
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 Toyota Jidosha Kabushiki Kaisha filed Critical Toyota Jidosha Kabushiki Kaisha
Publication of WO2009017009A1 publication Critical patent/WO2009017009A1/en

Links

Classifications

    • 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
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H02J7/0014—Circuits for equalisation of charge between batteries
    • H02J7/0016—Circuits for equalisation of charge between batteries using shunting, discharge or bypass circuits
    • 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
    • H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • 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
    • 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
    • H01M10/44—Methods for charging or discharging
    • H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
    • 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]
    • G01R31/396—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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • 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
    • H01M10/34—Gastight accumulators
    • H01M10/345—Gastight metal hydride accumulators
    • 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

Abstract

A voltage equalizer of an assembled battery detects a voltage Vb(k) of each single cell (S100) and charges or discharges a single cell having voltage difference of a threshold Vr or larger from a reference voltage (Vbst) among detected voltages to equalize the voltage. For example, the single cell with the voltage difference of the threshold Vr or larger from the minimum voltage Vbmi among the detected voltages is discharged (S102-114) to equalize the voltage. The threshold Vr is set as a different value depending on the reference voltage Vbst (Vbmin) to reduce the difference by the reference voltage Vbst (Vbmin for example) in a width of a charged state corresponding to the threshold Vr (S104).
PCT/JP2008/063200 2007-08-01 2008-07-23 Voltage equalizer of assembled battery WO2009017009A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007200253A JP2009038876A (en) 2007-08-01 2007-08-01 Voltage equalizer for battery pack
JP2007-200253 2007-08-01

Publications (1)

Publication Number Publication Date
WO2009017009A1 true WO2009017009A1 (en) 2009-02-05

Family

ID=40304241

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/063200 WO2009017009A1 (en) 2007-08-01 2008-07-23 Voltage equalizer of assembled battery

Country Status (2)

Country Link
JP (1) JP2009038876A (en)
WO (1) WO2009017009A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011034730A3 (en) * 2009-09-18 2011-06-23 American Power Conversion Corporation System and method for battery cell balancing
WO2011157116A1 (en) * 2010-12-31 2011-12-22 华为技术有限公司 Lithium battery module parallel using method and system
WO2012118219A1 (en) * 2011-02-28 2012-09-07 Yazaki Corporation Voltage detection apparatus and method of reducing dispersion of dark currents
WO2012172592A1 (en) * 2011-06-13 2012-12-20 トヨタ自動車株式会社 Battery system and method for controlling battery device
DE112011104434T5 (en) 2010-12-16 2013-09-12 Honda Motor Co., Ltd. Battery control device and battery control method
US8947052B2 (en) 2009-10-27 2015-02-03 Mitsumi Electric Co., Ltd. Charge-discharge control circuit, semiconductor integrated circuit, method of controlling charging and discharging
US9436172B2 (en) 2010-01-21 2016-09-06 Duerr Systems Gmbh Test installation for testing control programs for a robot installation
EP3086399A4 (en) * 2013-12-18 2017-06-14 Bluelife Battery S.L. Method for regenerating nimh batteries

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009071936A (en) * 2007-09-11 2009-04-02 Fuji Heavy Ind Ltd Voltage equalization system for battery pack
JP6030820B2 (en) * 2010-11-05 2016-11-24 ミツミ電機株式会社 Battery voltage monitoring circuit
JP2014060868A (en) 2012-09-18 2014-04-03 Suzuki Motor Corp Battery pack equalization device
JP6056730B2 (en) * 2013-10-16 2017-01-11 トヨタ自動車株式会社 Power storage system
WO2015072061A1 (en) * 2013-11-13 2015-05-21 パナソニックＩｐマネジメント株式会社 Equalizing apparatus
KR101683603B1 (en) * 2015-07-10 2016-12-21 ㈜ 에이치엠지 apparatus for balancing cell of battery pack and method thereof
CN107825977B (en) * 2017-10-27 2020-05-08 北京华特时代电动汽车技术有限公司 Battery box differential pressure adjusting method and system
US20210156926A1 (en) * 2019-11-25 2021-05-27 Alan C. Knudson Battery charge and discharge cycling with predictive load and availability control system
DE102020201506A1 (en) * 2020-02-07 2021-08-12 Robert Bosch Gesellschaft mit beschränkter Haftung Method for determining the state of charge of an electrical energy storage unit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10322925A (en) * 1997-05-12 1998-12-04 Nissan Motor Co Ltd Adjusting device for set battery cell-to-cell charging rate
JP2002025628A (en) * 2000-07-06 2002-01-25 Toyota Motor Corp Abnormality detector for battery pack
JP2003061254A (en) * 2001-08-08 2003-02-28 Sanyo Electric Co Ltd Voltage detector for battery pack
JP2003333762A (en) * 2002-05-14 2003-11-21 Japan Storage Battery Co Ltd Voltage level equalization device for battery pack

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10322925A (en) * 1997-05-12 1998-12-04 Nissan Motor Co Ltd Adjusting device for set battery cell-to-cell charging rate
JP2002025628A (en) * 2000-07-06 2002-01-25 Toyota Motor Corp Abnormality detector for battery pack
JP2003061254A (en) * 2001-08-08 2003-02-28 Sanyo Electric Co Ltd Voltage detector for battery pack
JP2003333762A (en) * 2002-05-14 2003-11-21 Japan Storage Battery Co Ltd Voltage level equalization device for battery pack

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011034730A3 (en) * 2009-09-18 2011-06-23 American Power Conversion Corporation System and method for battery cell balancing
CN102742112A (en) * 2009-09-18 2012-10-17 美国能量变换公司 System and method for battery cell balancing
AU2010295890B2 (en) * 2009-09-18 2015-09-03 Schneider Electric It Corporation System and method for battery cell balancing
US8947052B2 (en) 2009-10-27 2015-02-03 Mitsumi Electric Co., Ltd. Charge-discharge control circuit, semiconductor integrated circuit, method of controlling charging and discharging
US9436172B2 (en) 2010-01-21 2016-09-06 Duerr Systems Gmbh Test installation for testing control programs for a robot installation
DE112011104434T5 (en) 2010-12-16 2013-09-12 Honda Motor Co., Ltd. Battery control device and battery control method
US9438059B2 (en) 2010-12-16 2016-09-06 Honda Motor Co., Ltd. Battery control apparatus and battery control method
WO2011157116A1 (en) * 2010-12-31 2011-12-22 华为技术有限公司 Lithium battery module parallel using method and system
WO2012118219A1 (en) * 2011-02-28 2012-09-07 Yazaki Corporation Voltage detection apparatus and method of reducing dispersion of dark currents
US9310443B2 (en) 2011-02-28 2016-04-12 Yazaki Corporation Voltage detection apparatus and method of reducing dispersion of dark currents
WO2012172592A1 (en) * 2011-06-13 2012-12-20 トヨタ自動車株式会社 Battery system and method for controlling battery device
EP3086399A4 (en) * 2013-12-18 2017-06-14 Bluelife Battery S.L. Method for regenerating nimh batteries

Also Published As

Publication number Publication date
JP2009038876A (en) 2009-02-19

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