JP2021507669A - バッテリーのセルバランシング - Google Patents

バッテリーのセルバランシング Download PDF

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Publication number
JP2021507669A
JP2021507669A JP2020534953A JP2020534953A JP2021507669A JP 2021507669 A JP2021507669 A JP 2021507669A JP 2020534953 A JP2020534953 A JP 2020534953A JP 2020534953 A JP2020534953 A JP 2020534953A JP 2021507669 A JP2021507669 A JP 2021507669A
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JP
Japan
Prior art keywords
smd
cell
current
balance
voltage
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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.)
Pending
Application number
JP2020534953A
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English (en)
Japanese (ja)
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JP2021507669A5 (enExample
Inventor
ポール グラスホフ，エリック
ポール グラスホフ，エリック
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Publication of JP2021507669A publication Critical patent/JP2021507669A/ja
Publication of JP2021507669A5 publication Critical patent/JP2021507669A5/ja
Pending legal-status Critical Current

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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
    • 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
    • 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
    • H02J7/0019—Circuits for equalisation of charge between batteries using switched or multiplexed charge circuits
    • 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
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
    • H02J7/0049—Detection of fully charged condition
    • 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
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)
JP2020534953A 2017-12-21 2018-12-13 バッテリーのセルバランシング Pending JP2021507669A (ja)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US201762609063P 2017-12-21 2017-12-21
US62/609,063 2017-12-21
US201862658364P 2018-04-16 2018-04-16
US62/658,364 2018-04-16
US15/961,604 2018-04-24
US15/961,604 US10910847B2 (en) 2017-12-21 2018-04-24 Active cell balancing in batteries using switch mode dividers
PCT/US2018/065523 WO2019125916A1 (en) 2017-12-21 2018-12-13 Cell balancing in batteries

Publications (2)

Publication Number Publication Date
JP2021507669A true JP2021507669A (ja) 2021-02-22
JP2021507669A5 JP2021507669A5 (enExample) 2021-11-18

Family

ID=66948985

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2020534953A Pending JP2021507669A (ja) 2017-12-21 2018-12-13 バッテリーのセルバランシング

Country Status (6)

Country Link
US (1) US10910847B2 (enExample)
EP (1) EP3729600A4 (enExample)
JP (1) JP2021507669A (enExample)
KR (1) KR20200091466A (enExample)
CN (1) CN109950942A (enExample)
WO (1) WO2019125916A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022148907A (ja) * 2021-03-24 2022-10-06 日置電機株式会社 電圧生成装置

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20240006894A1 (en) * 2017-12-21 2024-01-04 Eric Paul Grasshoff Active cell balancing in batteries using switch mode dividers
US11876394B2 (en) * 2017-12-21 2024-01-16 Eric Paul Grasshoff Active cell balancing in batteries using switch mode dividers
KR102756814B1 (ko) * 2019-02-19 2025-01-20 삼성전자주식회사 복수의 배터리들을 제어하는 방법 및 그 방법을 적용한 전자 장치
WO2021107220A1 (ko) * 2019-11-29 2021-06-03 주식회사 민테크 배터리 상태 추정 장치 및 방법
TWI762961B (zh) * 2020-06-24 2022-05-01 倍米科技股份有限公司 運用單一充電器作電池組平衡的系統及充電方法
CN114696376A (zh) * 2020-12-25 2022-07-01 神讯电脑(昆山)有限公司 充电方法与充电装置
US12051925B2 (en) * 2021-06-21 2024-07-30 Lenovo (Singapore) Pte. Ltd. Charging control method of a battery pack for portable electronic devices
WO2023224678A1 (en) * 2022-05-20 2023-11-23 Grasshoff Eric Paul Active cell balancing in batteries using switch mode dividers
US20250175014A1 (en) * 2023-11-28 2025-05-29 Eric Paul Grasshoff Method for estimating balancing current using current limiting via impedance characterization
WO2025129242A1 (en) * 2023-12-18 2025-06-26 Kevin Stephen Davies Energy storage system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009232660A (ja) * 2008-03-25 2009-10-08 Fdk Corp 直列セルの電圧バランス補正回路
JP2012523214A (ja) * 2009-04-03 2012-09-27 マーベル ワールド トレード リミテッド 再充電可能なバッテリスタックの電力管理回路
JP2013169031A (ja) * 2012-02-14 2013-08-29 Toyota Industries Corp 電池均等化装置および方法
JP2014147148A (ja) * 2013-01-25 2014-08-14 Fdk Corp バランス補正装置及び蓄電装置
JP2014155405A (ja) * 2013-02-13 2014-08-25 Toyota Industries Corp 電圧均等化装置および電圧均等化方法

Family Cites Families (79)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5504415A (en) 1993-12-03 1996-04-02 Electronic Power Technology, Inc. Method and apparatus for automatic equalization of series-connected batteries
JPH07336905A (ja) 1994-06-08 1995-12-22 Nissan Motor Co Ltd 組電池の充電装置
US5528122A (en) 1994-11-29 1996-06-18 Ventron Corporation Battery voltage equalizer circuit
US5631534A (en) 1995-08-21 1997-05-20 Delco Electronics Corp. Bidirectional current pump for battery charge balancing
US5773959A (en) 1996-01-11 1998-06-30 Lockheed Martin Corporation Lithium polymer battery charger methods and apparatus
GB9605830D0 (en) 1996-03-20 1996-05-22 Atomic Energy Authority Uk Cell overcharge prevention
US5920179A (en) 1997-05-05 1999-07-06 Aer Energy Resources, Inc. System and method for balancing charge cycles for batteries or multiple-cell battery packs
FR2776139B1 (fr) 1998-03-13 2002-03-08 Denso Corp Dispositif d'equilibrage des tensions dans une batterie composee
US5982142A (en) 1998-05-22 1999-11-09 Vanner, Inc. Storage battery equalizer with improved, constant current output filter, overload protection, temperature compensation and error signal feedback
KR100262465B1 (ko) 1998-06-25 2000-08-01 박찬구 펄스전류의 전압 응답신호를 이용한 전지용량 측정방법 및 측정장치
TW502900U (en) 1998-11-30 2002-09-11 Ind Tech Res Inst Battery charging equalizing device
US6150795A (en) 1999-11-05 2000-11-21 Power Designers, Llc Modular battery charge equalizers and method of control
US6271645B1 (en) * 2000-02-11 2001-08-07 Delphi Technologies, Inc. Method for balancing battery pack energy levels
US6271646B1 (en) 2000-07-05 2001-08-07 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Battery cell by-pass circuit
US6452363B1 (en) 2000-12-28 2002-09-17 C. E. Niehoff & Co. Multiple battery charge equalizer
JP2005521363A (ja) 2001-05-25 2005-07-14 ディヴィソン ゲイリー エイチ 複数のエネルギー貯蔵装置におけるエネルギーを管理する方法及び装置
FR2825842B1 (fr) 2001-06-07 2003-10-03 Cit Alcatel Procede d'equilibrage pour batterie electrique sousmise a un regime discontinu de recharge et systeme de gestion de batterie permettant la mise en oeuvre de ce procede
US6544078B2 (en) 2001-07-18 2003-04-08 Midtronics, Inc. Battery clamp with integrated current sensor
US7378818B2 (en) 2002-11-25 2008-05-27 Tiax Llc Bidirectional power converter for balancing state of charge among series connected electrical energy storage units
US6882129B2 (en) 2003-03-26 2005-04-19 General Motors Corporation Battery pack for a battery-powered vehicle
US6806686B1 (en) * 2003-04-25 2004-10-19 Maxwell Technologies, Inc. Charge balancing circuit
JP3795499B2 (ja) 2003-12-26 2006-07-12 富士重工業株式会社 蓄電素子の電圧均等化装置
US7489109B1 (en) 2004-06-23 2009-02-10 Intersil Americas Inc. Integrated battery charger and system regulator circuit
US7126312B2 (en) 2004-07-28 2006-10-24 Enerdel, Inc. Method and apparatus for balancing multi-cell lithium battery systems
EP1842275A4 (en) 2005-01-25 2016-05-11 Victhom Human Bionics Inc POWER SUPPLY CHARGING AND EQUIPMENT
US7562234B2 (en) 2005-08-25 2009-07-14 Apple Inc. Methods and apparatuses for dynamic power control
US7612530B2 (en) 2006-11-21 2009-11-03 Industrial Technology Research Institute Bridge battery voltage equalizer
US7598706B2 (en) 2007-01-26 2009-10-06 General Electric Company Cell balancing battery pack and method of balancing the cells of a battery
KR20090121402A (ko) 2007-03-20 2009-11-25 에네르델, 인코포레이티드 직렬 연결된 전지의 충전 상태를 밸런싱하기 위한 시스템과 방법
US7973514B2 (en) 2007-10-09 2011-07-05 O2Micro, Inc. Battery cell balancing systems using current regulators
US7856328B2 (en) 2007-10-10 2010-12-21 Texas Instruments Incorporated Systems, methods and circuits for determining potential battery failure based on a rate of change of internal impedance
KR101107999B1 (ko) 2007-10-16 2012-01-25 한국과학기술원 전압 센서와 전하 균일 장치가 결합된 배터리 운용 시스템
US7888910B2 (en) 2007-11-29 2011-02-15 Hdm Systems Corporation Sequencing switched single capacitor for automatic equalization of batteries connected in series
US7808244B2 (en) 2008-03-31 2010-10-05 Texas Instruments Incorporated System and method for determining state of charge of a battery utilizing initial voltage and current measurement and a previous estimate of battery resistance
US8421416B2 (en) 2008-04-16 2013-04-16 Texas Instruments Incorporated Battery charge compensation
US8242738B2 (en) 2008-05-28 2012-08-14 Texas Instruments Incorporated Systems and methods for determining battery parameters following active operation of the battery
KR101076786B1 (ko) * 2009-01-30 2011-10-25 한국과학기술원 직렬연결 배터리 스트링을 위한 지능제어 전하균일 장치 및방법
CN201466770U (zh) 2009-05-22 2010-05-12 深圳市德泽能源科技有限公司 新型磷酸铁锂电池均衡充电保护电路
US8754614B2 (en) 2009-07-17 2014-06-17 Tesla Motors, Inc. Fast charging of battery using adjustable voltage control
TWI400854B (zh) 2009-09-15 2013-07-01 Green Solution Tech Co Ltd 電池電壓平衡電路及方法
CN102577017A (zh) 2009-09-16 2012-07-11 国家半导体公司 用于电池或其它电力供应的有源单元及模块平衡
ES2793924T3 (es) 2009-09-24 2020-11-17 Vito Nv Vlaamse Instelling Voor Tech Onderzoek Nv Método y sistema para equilibrar celdas de almacenamiento de energía eléctrica
US8965721B2 (en) 2009-09-30 2015-02-24 Tesla Motors, Inc. Determining battery DC impedance
US8148942B2 (en) 2009-11-05 2012-04-03 O2Micro International Limited Charging systems with cell balancing functions
US8525478B2 (en) 2010-01-06 2013-09-03 Marvell World Trade Ltd. Power management circuit of rechargeable battery stack
EP2363935B1 (en) 2010-03-04 2013-05-15 Nxp B.V. Balancing circuit for charge storage elements
EP2367258B1 (en) 2010-03-16 2018-06-27 CTEK Sweden AB A combined battery charger and battery equalizer
HUP1000311A2 (en) 2010-06-14 2012-08-28 Ferenc Stangl System and method for charge equalisation and/or charring of electrical energy storing units
US8723481B2 (en) 2010-06-25 2014-05-13 O2Micro, Inc. Battery pack with balancing management
EP2400622A3 (en) 2010-06-28 2012-03-14 Nxp B.V. Inductive cell balancing
US8423215B2 (en) 2010-08-10 2013-04-16 Tesla Motors, Inc. Charge rate modulation of metal-air cells as a function of ambient oxygen concentration
TWI409482B (zh) 2010-08-10 2013-09-21 Lite On Clean Energy Technology Corp 電池等化器的檢測模組及檢測方法
US8450978B2 (en) 2010-08-27 2013-05-28 Texas Instruments Incorporated Monitoring a rechargeable battery with multiple parameter update rates
US9201121B2 (en) 2010-12-06 2015-12-01 Texas Instruments Incorporated System and method for sensing battery capacity
US9397509B2 (en) 2011-01-22 2016-07-19 Alpha Technologies Inc. Charge equalization systems and methods for battery systems and uninterruptible power supplies
EP2610998A4 (en) 2011-03-18 2015-07-29 Asahi Kasei Microdevices Corp SWITCHING OF SERIAL MEMORY CELLS AND METHOD OF COMPARING SERIAL MEMORY CELLS
US9225197B2 (en) 2011-05-06 2015-12-29 Tesla Motors, Inc. Charging efficiency using variable isolation
EP2538519B1 (en) 2011-06-15 2022-12-07 Analog Devices International Unlimited Company Stackable bi-directional multicell battery balancer
JP2013046433A (ja) 2011-08-22 2013-03-04 Seiko Instruments Inc セルバランス装置およびバッテリシステム
US8168315B1 (en) 2011-08-23 2012-05-01 Tesla Motors, Inc. Method for detecting battery thermal events via battery pack isolation monitoring
EP2751903A4 (en) 2011-09-02 2015-09-09 Boston Power Inc METHOD FOR COMPARING CELLS IN BATTERIES
US9225179B2 (en) 2011-10-12 2015-12-29 Texas Instruments Incorporated Capacitor-based active balancing for batteries and other power supplies
US9203121B2 (en) 2011-10-12 2015-12-01 Texas Instruments Incorporated Inductor-based active balancing for batteries and other power supplies
US8766597B2 (en) 2011-10-21 2014-07-01 Linear Technology Corporation Optimized bi-directional balancing method and system
FR2982091B1 (fr) 2011-10-31 2013-11-01 Renault Sa Procede et systeme de gestion de charges electriques de cellules de batterie
US8618775B2 (en) 2012-01-05 2013-12-31 Tesla Motors, Inc. Detection of over-current shorts in a battery pack using pattern recognition
US8907629B2 (en) 2012-02-28 2014-12-09 Tesla Motors, Inc. Electric vehicle battery lifetime optimization operational mode
US8901885B2 (en) 2012-03-09 2014-12-02 Tesla Motors, Inc. Low temperature fast charge
US8963494B2 (en) 2012-05-18 2015-02-24 Tesla Motors, Inc. Charge rate optimization
US9362772B2 (en) 2012-08-14 2016-06-07 Texas Instruments Incorporated System and method for balancing voltages
US9236748B2 (en) 2012-08-30 2016-01-12 Texas Instruments Incorporated Method and apparatus of charging the battery with globally minimized integral degradation possible for predefined charging duration
US9130377B2 (en) 2012-09-15 2015-09-08 Texas Instruments Incorporated System and method for battery pack management using predictive balancing
US9153990B2 (en) 2012-11-30 2015-10-06 Tesla Motors, Inc. Steady state detection of an exceptional charge event in a series connected battery element
FR3001089B1 (fr) 2013-01-11 2016-09-09 Enerstone Equilibrage de charge dans une batterie electrique
TWI627812B (zh) 2013-04-05 2018-06-21 美商線性科技股份有限公司 電壓補償主動電池平衡的裝置、系統及方法
JP2015015777A (ja) 2013-07-03 2015-01-22 ソニー株式会社 蓄電装置および蓄電装置の制御方法
US9276415B2 (en) 2013-09-18 2016-03-01 Go-Tech Energy Co. Ltd. Charging station having battery cell balancing system
CN105703447B (zh) * 2016-04-15 2019-09-03 周衍 充电电池组的直接平衡充电方法
CN107086625A (zh) 2017-05-18 2017-08-22 深圳市沃特玛电池有限公司 电池被动均衡系统及方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009232660A (ja) * 2008-03-25 2009-10-08 Fdk Corp 直列セルの電圧バランス補正回路
JP2012523214A (ja) * 2009-04-03 2012-09-27 マーベル ワールド トレード リミテッド 再充電可能なバッテリスタックの電力管理回路
JP2013169031A (ja) * 2012-02-14 2013-08-29 Toyota Industries Corp 電池均等化装置および方法
JP2014147148A (ja) * 2013-01-25 2014-08-14 Fdk Corp バランス補正装置及び蓄電装置
JP2014155405A (ja) * 2013-02-13 2014-08-25 Toyota Industries Corp 電圧均等化装置および電圧均等化方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022148907A (ja) * 2021-03-24 2022-10-06 日置電機株式会社 電圧生成装置
JP7668143B2 (ja) 2021-03-24 2025-04-24 日置電機株式会社 電圧生成装置

Also Published As

Publication number Publication date
CN109950942A (zh) 2019-06-28
US10910847B2 (en) 2021-02-02
EP3729600A4 (en) 2021-07-14
US20190199106A1 (en) 2019-06-27
KR20200091466A (ko) 2020-07-30
EP3729600A1 (en) 2020-10-28
WO2019125916A1 (en) 2019-06-27

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