JP2016539320A - リチウムバッテリの劣化状態を評価する方法および装置 - Google Patents
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 16
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 230000006866 deterioration Effects 0.000 title claims abstract description 12
- 238000007600 charging Methods 0.000 claims abstract description 28
- 230000015556 catabolic process Effects 0.000 claims abstract description 25
- 238000006731 degradation reaction Methods 0.000 claims abstract description 25
- 230000007423 decrease Effects 0.000 claims abstract description 16
- 238000005259 measurement Methods 0.000 claims abstract description 9
- 229910001416 lithium ion Inorganic materials 0.000 claims description 16
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical group [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 10
- 238000012806 monitoring device Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical group [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- 238000012886 linear function Methods 0.000 claims description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims description 2
- CKFRRHLHAJZIIN-UHFFFAOYSA-N cobalt lithium Chemical compound [Li].[Co] CKFRRHLHAJZIIN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 239000011572 manganese Substances 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 239000002932 luster Substances 0.000 abstract 1
- 230000032683 aging Effects 0.000 description 11
- 230000006870 function Effects 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 4
- 238000013528 artificial neural network Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 229910002986 Li4Ti5O12 Inorganic materials 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000001351 cycling effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002687 intercalation Effects 0.000 description 2
- 238000009830 intercalation Methods 0.000 description 2
- 238000004377 microelectronic Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000007784 solid electrolyte Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- HCUOEKSZWPGJIM-YBRHCDHNSA-N (e,2e)-2-hydroxyimino-6-methoxy-4-methyl-5-nitrohex-3-enamide Chemical compound COCC([N+]([O-])=O)\C(C)=C\C(=N/O)\C(N)=O HCUOEKSZWPGJIM-YBRHCDHNSA-N 0.000 description 1
- KFDQGLPGKXUTMZ-UHFFFAOYSA-N [Mn].[Co].[Ni] Chemical compound [Mn].[Co].[Ni] KFDQGLPGKXUTMZ-UHFFFAOYSA-N 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 238000013473 artificial intelligence Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000010280 constant potential charging Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000000157 electrochemical-induced impedance spectroscopy Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910002102 lithium manganese oxide Inorganic materials 0.000 description 1
- VLXXBCXTUVRROQ-UHFFFAOYSA-N lithium;oxido-oxo-(oxomanganiooxy)manganese Chemical compound [Li+].[O-][Mn](=O)O[Mn]=O VLXXBCXTUVRROQ-UHFFFAOYSA-N 0.000 description 1
- ZAUUZASCMSWKGX-UHFFFAOYSA-N manganese nickel Chemical compound [Mn].[Ni] ZAUUZASCMSWKGX-UHFFFAOYSA-N 0.000 description 1
- 238000007620 mathematical function Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- -1 nickel cobalt aluminum Chemical compound 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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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]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/16—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
-
- 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]
- G01R31/367—Software therefor, e.g. for battery testing using modelling or look-up tables
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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]
- G01R31/378—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] specially adapted for the type of battery or accumulator
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- 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
-
- 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
- H02J7/005—Detection of state of health [SOH]
-
- 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
- G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
-
- 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
- H02J7/0069—Charging or discharging for charge maintenance, battery initiation or rejuvenation
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
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- General Health & Medical Sciences (AREA)
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
Description
− T.Hang,D.Mukoyama,H.Nara,N.Takami,T.Momma and T.Osaka,「Electrochemical impedance spectroscopy analysis for lithium−ion battery using Li4Ti5O12 anode」,Journal of Power Sources,vol.222,pp.442−447,2013、および、
− A.Eddahech,O.Briat,H.Henry,J.−Y.Deletage,E.Woirgard and J.−M.Vinassa,「Aging monitoring of lithium−ion cell during power cycling tests」,Microelectronics Reliability Journal,vol.51,N 9−11,pp.1968−1971,2011
を参照されたい。
− S.Wang,M.Verbrugge,J.S.Wang and P.Liu,「Multi−parameter battery state estimator based on the adaptive and direct solution of the governing differential equations」,Journal of Power Sources,vol.196,pp.8735−8741,2011、および、
− A.Eddahech,O.Briat and J.M.Vinassa,「Real−Time SOC and SOH Estimation for EV Li−Ion Cell Using Online Parameters Identification」,in Proc.IEEE Energy Conversion Congress and Exposition conf.,2012,Raleigh,North Carolina,United States
を参照されたい。
a) 前記バッテリの端子における電圧が限界値に到達するまで、定電流で前記バッテリを再充電する第1のステップと、次に
b) 充電電流が閾値より下に下がるまで、前記限界値と等しい定電圧で前記バッテリを再充電する第2のステップと、
c) 定電圧で再充電する前記第2のステップの間に獲得された充電電流の前記測定値から前記バッテリの劣化状態を推定するステップと
を含む方法である。
c1) 充電電流の前記測定値を補間する負の指数関数の減少の定数Bを推定するサブステップと、
c2) 前記減少の定数Bから前記劣化状態を推定するサブステップと
を含み得る。
− 前記サブステップc2は、前記減少の定数Bを前記バッテリの容量の損失に関連づけている線形関数を用いて実施され得る。
− 前記バッテリは、リチウムイオンバッテリとすることができる。
− より具体的には、前記バッテリは、ニッケル、マンガンおよびコバルト(NMC)リチウムイオンバッテリとすることができる。この場合、本方法はまた、
d) 定電圧で再充電する前記第2のステップの間に獲得された充電電流の前記測定値を表している曲線で屈曲を検出するステップを含み得る。
− 定電流で再充電する第1のステップ、
− 定電圧で再充電する第2のステップ、
− 定電圧で再充電するこの第2のステップの少なくとも1つのパラメータの特性の測定、決定または推定、
− 前記パラメータからの、または少なくとも1つの前記パラメータからの、バッテリの劣化状態を示唆する少なくとも1つのSOH量(例えば、新しいときの前記バッテリの容量にまたはバッテリの公表された容量に関連したバッテリの容量)の決定。この後者のステップは、前記または各々のパラメータとバッテリの劣化状態との間に関係が確立される予備的な較正ステップによって可能となる。較正は、バッテリの劣化状態を決定するためにベンチマーク方法を必要とする。この方法は、例えば、バッテリの完全な放電の間に行われた容量測定(「放電容量」測定)とすることができる。
I(t)=A・e−Bt+C
の減少を表現するパラメータBである。図3A〜図3Cはこのような補間の品質を確認することを可能にし、補間関数を表す連続的な曲線は実質的に測定点に重なる。これらの図で示される3つの曲線は、各々別個の劣化状態にある、3つのリチウムバッテリ技術−ニッケルコバルトアルミニウム(NCA、図3A)、ニッケルマンガンコバルト(NMC、図3B)、リチウムマンガン酸化物(LMO、図3C)−に関係する。
− −新しいときのその値に関連したバッテリの放電容量によって表現された−このようなバッテリの劣化状態SOHの、経時変化の間の、傾向を表している第1の曲線、および
− −同じく、新しいときのその値に関連した−再充電の定電圧フェーズの持続期間TCVの傾向を表している第2の曲線
を示しているグラフである。
Claims (7)
- リチウムバッテリ(BATT)の劣化状態を評価する方法であって、
a) 前記バッテリの端子における電圧(U)が限界値(UCV)に到達するまで、定電流で前記バッテリを再充電する第1のステップと、次に
b) 充電電流(I)が閾値(Imin)より下に下がるまで、前記限界値と等しい定電圧で前記バッテリを再充電する第2のステップであって、充電電流の複数の測定値が前記第2の再充電ステップの間に獲得される、第2のステップと、
c) 定電圧で再充電する前記第2のステップの間に獲得された充電電流の前記測定値から前記バッテリの劣化状態を推定するステップと、
を含み、
前記バッテリの劣化状態を推定する前記ステップc)は、
c1) 充電電流の前記測定値を補間する負の指数関数の減少の定数Bを推定するサブステップと、
c2) 前記減少の定数Bから前記劣化状態を推定するサブステップと、
を含むことを特徴とする、方法。 - 前記サブステップc2は、前記減少の定数Bを前記バッテリの容量の損失に関連づけている線形関数を用いて実施される、請求項1に記載の方法。
- 定電圧で再充電する前記第2のステップの、前記または各々の前記パラメータの特性をバッテリの前記劣化状態に関連づけている関係の決定を含む、予備的な較正ステップもまた含む、請求項1または2に記載の方法。
- 前記バッテリはリチウムイオンバッテリである、請求項1から3のいずれか一項に記載の方法。
- 前記バッテリは、ニッケル、マンガンおよびコバルトリチウムイオンバッテリであり、方法は、
d) 定電圧で再充電する前記第2のステップの間に獲得された充電電流の前記測定値を表している曲線で屈曲を検出するステップ、
もまた含む、請求項4に記載の方法。 - リチウムバッテリの劣化状態を評価する装置であって、
− 1つの前記バッテリ(BATT)を、そのバッテリの端子における電圧が限界値に到達するまで定電流で充電し、次に充電電流が閾値より下に下がるまで前記限界値と等しい定電圧で充電するように適合された、定電流定電圧タイプの充電器(CHG)と、
− 前記バッテリの再充電を監視するデバイス(DSC)と、
− 請求項1から5のいずれか一項に記載の方法を実施するために、前記充電器とおよび前記監視デバイスと連携するように構成またはプログラムされたデータ処理デバイス(PR)と、
を備える、装置。 - 請求項6に記載の装置を備える、バッテリ管理システム(BMS)。
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FR1359508 | 2013-10-01 | ||
FR1359508A FR3011393B1 (fr) | 2013-10-01 | 2013-10-01 | Procede et appareil d'evaluation de l'etat de sante d'une batterie lithium |
PCT/EP2014/071065 WO2015049300A1 (fr) | 2013-10-01 | 2014-10-01 | Procede et appareil d'evaluation de l'etat de sante d'une batterie lithium |
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JP2019158531A (ja) * | 2018-03-12 | 2019-09-19 | 古河電気工業株式会社 | データ処理装置および診断方法 |
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WO2015049300A1 (fr) | 2015-04-09 |
FR3011393A1 (fr) | 2015-04-03 |
EP3052953A1 (fr) | 2016-08-10 |
FR3011393B1 (fr) | 2017-02-10 |
US10036781B2 (en) | 2018-07-31 |
US20160245876A1 (en) | 2016-08-25 |
JP6502331B2 (ja) | 2019-04-17 |
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