CN1379499A - 监控可再充电锂电池运行可靠性的方法 - Google Patents
监控可再充电锂电池运行可靠性的方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 18
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 12
- 238000012544 monitoring process Methods 0.000 title claims abstract description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 4
- 240000006909 Tilia x europaea Species 0.000 claims description 4
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 4
- 239000004571 lime Substances 0.000 claims description 4
- 230000006378 damage Effects 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000002427 irreversible effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005779 cell damage Effects 0.000 description 1
- 208000037887 cell injury Diseases 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
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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
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- 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
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- 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
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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]
- G01R31/374—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with means for correcting the measurement for temperature or ageing
-
- 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
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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
- 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
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- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
在用于通过测量电池电压和电池温度监控可再充电锂电池运行可靠性的一种方法上,在同时超过规定的电池极限电压(UG)和规定的环境极限温度(TG)时进行电池的放电,直到达到了规定的最低电平或规定的最低环境温度时为止。用于实施本方法的一种电路装置拥有在超过电池的规定上极限电压(UG)时响应的一个第一阈值开关,和在超过环境温度的规定极限(TG)时响应的一个第二阈值开关(C),以及在第一和第二阈值开关同时响应时将电池连接到负载(G)上的一个逻辑电路(E),在此情况下如此配置了两个阈值开关(C,D),使得当达到了低电池电压或低环境温度时,两个阈值开关(C,D)释放。
Description
技术领域
本发明的对象是用于通过测量和检查电池电压和电池温度来监控可再充电锂的电池运行可靠性的一种方法。
背景技术
可再充电锂/离子电池要求一种专门的充电技术，尤其是必须准确保持规定的关断电压，并且如果充电设备失效的话，保护电路必须禁止和阻断进一步的充电。甚至在这样的电池放电时不准低于某些电压下限，以便避免电池的不可逆的损伤。因此用专门的电子保护开关配备锂/离子电池，在充电器或设备的故障行为时，在规定的充电和放电结束电压下这些保护开关应关断，并且与专门的保护装置一起应防护电池免受不允许的电平或电流的损坏，并且应该防止可能有不可逆的电解液分解和电池损伤后果的危险状态。例如在WO96/15563中说明了具有这样监控功能的充电设备。
发明内容
本发明基于这种任务，说明通过其进一步改善可再充电锂电池的运行可靠性的一种方法。
按本发明在开始时所述方法上通过权利要求1的特征来解决此任务。在从属权利要求中说明了本方法的其它的构成，以及实施本方法的一种合适的电路装置。
通过按本发明的方法在高温和临界充电状态下防护锂电池免受电化学分解，采用的办法是将电池如此放电，使得还有足够的容量供支配，而电池不再位于临界的充电状态下，或在临界的温度下。
附图描述
以下借助于图详述本发明的对象。
图1在此展示用于实施本方法的一种合适电路装置的原理电路图。图2展示在用C/2电流所进行的充/放电循环时，取决于充电CL时和放电CEL时的电池电压的电池容量曲线。
优选实施形式
在电路模块A中，从蓄电池电压UB中生成用于保障阈值开关的具体功能方式的，和总电路逻辑门所需的辅助电压UH。稳定的辅助电压UH尤其显著地小于最小的蓄电池电压。在这里所观察的锂电池上，蓄电池电压位于2.7和4.2伏之间，以至于稳定的辅助电压例如可以位于约2.5伏上。
温度传感器B生成与环境温度成比例的，输送给阈值开关C的电压信号。在超过规定的上极限温度TG时阈值开关C转换到接通状态。此阈值开关配置了滞后。在低于明显位于极限温度TG之下的新温度时，它才返回转换到关断状态。当蓄电池电压达到规定的上极限值UG时，将一个其它的阈值开关D连接到接通状态。运个阈值开关也配置了滞后，以至于当在以前达到的极限电压UG和在此之后出现的电压之间达到一个明显的间距时，阈值开关才随后返回转换到关断状态。将两个阈值开关C和D的输出信号输送给一个逻辑门，当不仅温度而且电压达到规定的极限值时，则借助于开关F将负载电阻G经此逻辑门接通到蓄电池上。当要么电池电压明显地下降到阈值开关D的极限电压UG之下，要么环境温度下降到阈值开关C的下开关阈时，则中断此放电过程。尤其选择约4伏的电压作为上极限电压。这相当于电池的90％的充电状态，并且用80°来确定上极限温度TG。应将电池的在超过两个极限值时所进行的放电进行到约3.82伏电压时为止，即进行到70％的充电状态时为止。但是让放电仅下降到约3.9伏电压时为止，和选择70℃或60℃作为温度的下极限值也可以是足够的。
应该专门对每个***决定和确定电压和温度极限值。对于低电压值的确定，值得如此来选择下极限电压，使得在放电结束时电压不重新恢复到超过上极限值，并且因而可能会使电路处于振荡中。
由于配置了具有滞后的阈值开关，在很大程度上阻止振荡倾向。所说明原理电路的功能可以合并到用于监控可再充电锂电池运行的已知的IC电路中。
按本发明的措施使得防护可再充电锂电池，尤其是甚至锂-聚合物电池免受在通过一些充电状态的高温时的机械和电化学的损伤，在这些充电状态下由于电池电压的高度和环境温度的高度，可能出现表现在内电阻提高和容量损失上的电化学的侧面反应。
Claims (5)
1.用于通过测量电池电压和电池温度来监控可再充电锂电池的运行可靠性的方法，其特征在于，在同时超过规定的电池极限电压(UG)和规定的环境极限温度(TG)时进行电池的放电，直到达到了规定的低电平或规定的低环境温度时为止。
2.按权利要求1的方法，其特征在于，极限电压(UG)位于4.0伏上，而极限温度(TG)约位于80℃上。
3.按权利要求1和2的方法，其特征在于，低电平低于3.9伏，而环境温度的下极限位于70℃上。
4.按权利要求1和2的方法，其特征在于，下极限电压位于3.82伏上，而下极限温度位于60℃上。
5.用于实施按权利要求1至4之一的方法的电路装置，其特征在于，它拥有在超过电池的规定上极限电压(UG)时响应的一个第一阈值开关(D)，和在超过环境温度的规定极限(TG)时响应的一个第二阈值开关(C)，以及在第一和第二阈值开关同时响应时将电池连接到负载(G)上的一个逻辑电路(E)，并且如此配置两个阈值开关(C，D)，使得当达到了最低电池电压或最低环境温度时，两个阈值开关(C，D)释放。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10104981.1 | 2001-02-03 | ||
| DE10104981A DE10104981A1 (de) | 2001-02-03 | 2001-02-03 | Verfahren zur Überwachung der Betriebssicherheit von wiederaufladbaren Li-Zellen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1379499A true CN1379499A (zh) | 2002-11-13 |
| CN1221056C CN1221056C (zh) | 2005-09-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021033447A Expired - Lifetime CN1221056C (zh) | 2001-02-03 | 2002-01-31 | 监控可再充电锂电池运行可靠性的方法 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6570364B2 (zh) |
| EP (1) | EP1229339B1 (zh) |
| JP (1) | JP4353671B2 (zh) |
| KR (1) | KR100881817B1 (zh) |
| CN (1) | CN1221056C (zh) |
| AT (1) | ATE490473T1 (zh) |
| DE (2) | DE10104981A1 (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103094636A (zh) * | 2011-10-27 | 2013-05-08 | 索尼公司 | 放电控制方法、电池组、蓄电***、电子设备及电动车辆 |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7081737B2 (en) | 2003-06-19 | 2006-07-25 | O2Micro International Limited | Battery cell monitoring and balancing circuit |
| US20070257642A1 (en) * | 2003-06-19 | 2007-11-08 | Sean Xiao | Battery cell monitoring and balancing circuit |
| DE10361360A1 (de) * | 2003-12-18 | 2005-07-14 | Varta Microbattery Gmbh | Galvanisches Element |
| DE102007031557A1 (de) | 2007-07-06 | 2009-01-08 | Robert Bosch Gmbh | Akkumulator mit interner Entladevorrichtung |
| US8872478B2 (en) * | 2010-03-09 | 2014-10-28 | O2Micro Inc. | Circuit and method for balancing battery cells |
| DE102011089700A1 (de) | 2011-12-22 | 2013-06-27 | Volkswagen Varta Microbattery Forschungsgesellschaft Mbh & Co. Kg | Batterie mit pneumo-elektrischem Schalter |
| DE102012213100B4 (de) | 2012-07-25 | 2015-08-06 | Volkswagen Varta Microbattery Forschungsgesellschaft Mbh & Co. Kg | Batterie mit Thermoschalter und pneumatisch betätigbarem Schalter und Verfahren zum sicheren Betreiben der Batterie |
| DE102013208555A1 (de) | 2013-05-08 | 2014-11-13 | Volkswagen Varta Microbattery Forschungsgesellschaft Mbh & Co. Kg | Batterie mit rückstellbarer Sicherheitseinrichtung sowie dafür geeigneter Polbolzen |
| DE102014201054A1 (de) * | 2014-01-22 | 2015-07-23 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Betreiben einer Batterie, insbesondere einer Lithium Ionen Batterie, in einem Verbraucher |
| DE102015207043A1 (de) | 2015-04-17 | 2016-11-17 | Varta Microbattery Gmbh | Batterie mit pneumo-elektrischem Sicherheitsschalter |
| US20170264105A1 (en) * | 2016-03-08 | 2017-09-14 | Lucas STURNFIELD | Method and apparatus for electric battery temperature maintenance |
| KR20220045450A (ko) * | 2020-10-05 | 2022-04-12 | 주식회사 엘지에너지솔루션 | 이차 전지의 스웰링 관리 장치 및 그 제어 방법 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2961853B2 (ja) * | 1990-09-26 | 1999-10-12 | ソニー株式会社 | 二次電池の保護装置 |
| US5633573A (en) | 1994-11-10 | 1997-05-27 | Duracell, Inc. | Battery pack having a processor controlled battery operating system |
| FR2740554A1 (fr) * | 1995-10-31 | 1997-04-30 | Philips Electronique Lab | Systeme de controle de la phase de decharge des cycles de charge-decharge d'une batterie rechargeable, et dispositif hote muni d'une batterie intelligente |
| JP3294754B2 (ja) * | 1996-02-20 | 2002-06-24 | インターナショナル・ビジネス・マシーンズ・コーポレーション | 二次電池の保護回路 |
| JPH1056742A (ja) * | 1996-08-06 | 1998-02-24 | Matsushita Electric Ind Co Ltd | 二次電池の過充電保護回路 |
| JP3248851B2 (ja) | 1996-10-29 | 2002-01-21 | エヌイーシーモバイルエナジー株式会社 | 二次電池の保護装置 |
| US6081101A (en) * | 1998-09-04 | 2000-06-27 | Yang; Tai-Her | Temperature switch controlled charging circuit |
| JP3988324B2 (ja) * | 1999-07-02 | 2007-10-10 | 株式会社デンソー | 組電池の異常判定装置及び組電池の異常判定方法 |
| JP3926518B2 (ja) * | 1999-08-27 | 2007-06-06 | 本田技研工業株式会社 | ハイブリッド車両のバッテリ制御装置 |
| DE10361360A1 (de) * | 2003-12-18 | 2005-07-14 | Varta Microbattery Gmbh | Galvanisches Element |
-
2001
- 2001-02-03 DE DE10104981A patent/DE10104981A1/de not_active Withdrawn
-
2002
- 2002-01-11 EP EP02000649A patent/EP1229339B1/de not_active Expired - Lifetime
- 2002-01-11 AT AT02000649T patent/ATE490473T1/de not_active IP Right Cessation
- 2002-01-11 DE DE50214793T patent/DE50214793D1/de not_active Expired - Lifetime
- 2002-01-25 US US10/056,854 patent/US6570364B2/en not_active Expired - Lifetime
- 2002-01-31 CN CNB021033447A patent/CN1221056C/zh not_active Expired - Lifetime
- 2002-01-31 JP JP2002024158A patent/JP4353671B2/ja not_active Expired - Fee Related
- 2002-02-01 KR KR1020020005777A patent/KR100881817B1/ko active IP Right Grant
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103094636A (zh) * | 2011-10-27 | 2013-05-08 | 索尼公司 | 放电控制方法、电池组、蓄电***、电子设备及电动车辆 |
| CN103094636B (zh) * | 2011-10-27 | 2017-04-12 | 索尼公司 | 放电控制方法、电池组、蓄电***、电子设备及电动车辆 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20020064866A (ko) | 2002-08-10 |
| DE50214793D1 (de) | 2011-01-13 |
| DE10104981A1 (de) | 2002-08-08 |
| JP2002289264A (ja) | 2002-10-04 |
| US6570364B2 (en) | 2003-05-27 |
| EP1229339A3 (de) | 2003-06-18 |
| KR100881817B1 (ko) | 2009-02-03 |
| EP1229339A2 (de) | 2002-08-07 |
| JP4353671B2 (ja) | 2009-10-28 |
| US20020105304A1 (en) | 2002-08-08 |
| ATE490473T1 (de) | 2010-12-15 |
| CN1221056C (zh) | 2005-09-28 |
| EP1229339B1 (de) | 2010-12-01 |
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