CN103081178A - 用于电化学电池的集电端子 - Google Patents

用于电化学电池的集电端子 Download PDF

Info

Publication number
CN103081178A
CN103081178A CN2011800426136A CN201180042613A CN103081178A CN 103081178 A CN103081178 A CN 103081178A CN 2011800426136 A CN2011800426136 A CN 2011800426136A CN 201180042613 A CN201180042613 A CN 201180042613A CN 103081178 A CN103081178 A CN 103081178A
Authority
CN
China
Prior art keywords
current
extension arm
collecting terminals
electrochemical cell
folding extension
Prior art date
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.)
Granted
Application number
CN2011800426136A
Other languages
English (en)
Other versions
CN103081178B (zh
Inventor
克劳德·卡里戈南
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bathium Canada Inc
Original Assignee
Bathium Canada Inc
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 Bathium Canada Inc filed Critical Bathium Canada Inc
Publication of CN103081178A publication Critical patent/CN103081178A/zh
Application granted granted Critical
Publication of CN103081178B publication Critical patent/CN103081178B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • 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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
    • 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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0069—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to the isolation, e.g. ground fault or leak current
    • 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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64—Constructional details of batteries specially adapted for electric vehicles
    • 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
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B60L58/14—Preventing excessive discharging
    • 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
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B60L58/15—Preventing overcharging
    • 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
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/21—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having the same nominal voltage
    • 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
    • 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
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
    • H01M50/51—Connection only in series
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
    • H01M50/512—Connection only in parallel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/514—Methods for interconnecting adjacent batteries or cells
    • H01M50/516—Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/54—Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/548—Terminals characterised by the disposition of the terminals on the cells on opposite sides of the cell
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/574—Devices or arrangements for the interruption of current
    • H01M50/581—Devices or arrangements for the interruption of current in response to temperature
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/545—Temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H01M2200/10—Temperature sensitive devices
    • H01M2200/103—Fuse
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • 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
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Secondary Cells (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

公开了一种电化学电池电池组，其具有用作安全装置的集电端子。该电池组包括串联或并联连接的多个电化学电池。每个电化学电池均具有将正极集电器连接在一起的集电端子以及将负极集电器连接在一起的集电端子。集电端子各自具有用于将两个相邻的电化学电池连接在一起的折叠的延伸臂部。所述折叠的延伸臂部具有形状记忆特性并且通过具有低于180℃的熔化温度Tf的焊接金属电连接在一起，由此，如果电化学电池的温度上升到焊接金属的熔化温度Tf以上，则焊接连接熔化并且集电端子的折叠的延伸臂部回弹到它们的初始形状，从而切断电化学电池之间的电连接。

Description

用于电化学电池的集电端子
交叉引用
本申请要求于2010年9月2日提交的美国专利申请12/874,808的优先权，其全部公开内容通过引用并入文中。
技术领域
本发明涉及一种电化学电池电池组，并且更具体地，涉及具有用作安全装置的集电端子的电化学电池电池组。
背景技术
汽车行业数十年来一直在寻求使可行且安全的电动车辆商业化。这种车辆的重要元件是车辆的电池组。电池组不仅必须提供所需水平的能量和合理的自主性以及是耐用的，还必须包括或装备有安全装置以防止过度充电、过度放电、内部及外部短路以及过热。
用于电池组的安全装置通常为在检测到问题时切断电池组的电子监视装置的形式，这些电子监视装置监视电池组的电压、电流和温度。这些电子系统在正常情况下表现良好，但在电池组的电化学电池中发生内部短路的情况下可能不能防止对电池的损害。尽管不常发生，但内部短路会使电池组的温度上升到造成对电池的永久损害的危险水平并且还可能会对经历内部短路的电池组的附近的各种部件造成损害。
2003年4月15日发布的美国专利NO.6,099,986通过在电化学电池的每个接头与电池组的极之间包括有熔丝而提供了一种关于这种内部短路的潜在问题的解决方案。具有熔丝的该系统将正经历内部短路的特定电化学电池产生的过大的电流与其他电池切断，从而限制了由于内部短路而对特定电化学电池造成的损害。然而，该系统是复杂且笨重的，需要多种焊料来将每个熔丝连接到每个电化学电池并且需要更多的空间来容置多个熔丝。
因此，需要这样一种安全装置：该安全装置比现有技术的安全装置简单且轻便并且适于防止正经历内部短路的电池中的损害。
发明内容
本发明的目的是改善现有技术中存在的不便之处中的至少一些。
在一个方面，本发明提供了一种电池组，该电池组包括串联或并联连接的多个电化学电池。每个电化学电池均包括一系列初级层压制件，所述一系列初级层压制件各自包括负极、正极、设置在负极与正极之间的电解质、从初级层压制件的一侧延伸的正极集电器以及从初级层压制件的相反侧延伸的负极集电器。每个电化学电池均具有将正极集电器连接在一起的集电端子以及将负极集电器连接在一起的集电端子。集电端子各自具有用于将两个相邻的电化学电池电连接在一起的折叠的延伸臂部，折叠的延伸臂部具有形状记忆特性。电化学电池通过以具有低于180℃的熔化温度Tf的焊接金属焊接在一起的相邻的集电端子的折叠的延伸臂部电连接在一起，由此，如果电化学电池的温度上升到焊接金属的熔化温度Tf以上，则焊接连接熔化并且集电端子的折叠的延伸臂部回弹到折叠的延伸臂部的初始形状，从而切断温度在焊接金属的熔化温度Tf以上的电化学电池与相邻的电化学电池之间的电连接。
在另一个方面，电池组还包括偏置装置，该偏置装置定位在两个相邻的集电端子的折叠的延伸臂部之间，该偏置装置沿着折叠的延伸臂部的长度延伸，从而为折叠的延伸臂部的形状记忆特性提供了附加的力，使得回弹力在焊接连接熔化时增大。
本发明的实施方式各自具有上面所提到的方面中的至少一个方面，但不必具有所有方面。应当理解的是，本发明的源于试图获得上面提到的目的的某些方面可能不满足这些目的和/或可能满足未在文中具体叙述的其他目的。
通过以下描述、附图以及所附权利要求，本发明的实施方式的额外的和/或替代性的特征、方面以及优点将变得明显。
附图说明
为了更好地理解本发明以及本发明的其他方面及进一步的特征，对下面结合附图使用的描述进行参考，在附图中：
图1为与根据本发明的一个实施方式的集电端子一起形成串联连接的电池组的电化学电池的堆组的一部分的示意性立体图；
图2为图1中示出的电化学电池的堆组的一部分的示意性正视图；
图3为根据本发明的一个实施方式的两个集电端子的示意性立体图；
图4为图3中示出的两个集电端子的示意性正视图；
图5为图3和图4中示出的两个集电端子的示意性正视图，其中这两个集电端子在被电连接在一起之前卷压到两个相邻的电化学电池的层压制件上；
图6为图5的两个集电端子电连接在一起的示意性正视图；
图7为图3中示出的两个集电端子的示意性正视图，其中这两个集电端子之间具有弹簧状元件；
图8为图7中示出的两个集电端子的示意性正视图，其中这两个集电端子在被电连接在一起之前卷压到两个相邻的电化学电池的层压制件上；以及
图9为图8中示出的两个集电端子电连接在一起的示意性正视图。
具体实施方式
参照图1，示出了形成电池组的电化学电池20的堆组的示例。每个电化学电池20均包括一系列初级层压制件，所述一系列初级层压制件各自包括片状负极、片状正极以及设置在负极与正极之间的电解质膜。另外，片状集电器支承通常为片材形式的糊状材料的正极。在本示例中，负极为用作阳离子源并用作集电器的锂或锂合金金属片或箔。然而，负极也可以包括与活性负极材料不同的集电器片。例如，负极也可以是包括有优选地由铜、聚合物、导电填料以及插置材料制成的集电器片的复合材料。
本领域的技术人员已知的任何插置材料均可以被使用，并且特别是可以从由碳、活性碳、石墨、石油焦、锂合金、镍粉、钛酸锂等构成的组中进行选择。
至于正极片，该正极片通常包括聚合物、锂盐以及电化学活性材料的化合物。合适的电化学活性材料的示例包括LixVyOz、LiCOO2、LixMnyOz、LiNiO2、LiFePO4、VxOy、MnyOz、Fe(PO4)3以及LixTiyOz。在优选实施方式中，阴极24优选包括LiFePO4。
至于电解质膜，该电解质膜优选为固体并且由混合有锂盐的聚合物制成，该电解质物理地分离负极与正极并且还用作离子输送隔膜。
用于在电极的活性材料与电池组(未图示)的端子之间传导电子流的基本功能的集电器片通常由铜、镍或铝的片构成。在优选实施方式中，正极的集电器包括涂覆有薄保护层的铝片或铝箔。该保护层在其与正极材料接触时防止了集电器片的劣化。
电化学电池20的每个层压制件均设计成使得正极的集电器片在电化学电池20的一侧上延伸，而用作负极的集电器的锂金属箔在电化学电池20的相反侧上延伸。如图1中所示，电化学电池20的所有正极的集电器的延伸部通过与2009年6月2日发布的美国专利NO.7,541,112中所描述的集电端子类似的集电端子22而组装并卷压在一起，以将电化学电池20的所有正极的所有集电器电连接在一起，该美国专利的全部公开内容通过引用并入文中。电化学电池20的所有负极的锂金属箔的延伸部通过集电端子23类似地组装并卷压在一起，以将电化学电池20的所有负极的锂金属箔的所有延伸部电连接在一起。
如图1中所示，集电端子22和集电端子23沿着电化学电池20的整个长度延伸并且分别电连接正极的集电器的大表面积和负极的锂箔的延伸部，使得集电端子22和23的电气连接能够容纳高电流。
参照图2，其以正视图示出了图1中示出的电化学电池20的堆组的前部，电化学电池20通过集电端子22和23串联电连接在一起，其中，负集电端子23连接到正集电端子22，从而通过每个串联连接的增加的电化学电池而增大了电化学电池20的堆组的电压。
集电端子22和23具有折叠的延伸臂部26，该折叠的延伸臂部26在电化学电池20的堆组被组装并电连接在一起时如由深黑色迹线28示出地焊接在一起。如图1中所示，折叠的延伸臂部沿着它们的整个长度焊接在一起。折叠的延伸臂部26弯曲成使得当串联或并联连接电化学电池20的堆组时，两个相邻的集电端子22和23的折叠臂部26并排地定位并且焊接或锡焊在一起以确保良好的电气接触。两个相邻的集电端子22和23的折叠的延伸臂部26被沿着它们的整个长度焊接，从而在相邻的集电端子22与23之间提供大的表面接触面积以容纳高电流载荷。
如图2中所示，所述堆组中的各个电化学电池20通过由诸如聚丙烯之类的塑性材料30制成的绝缘膜而分隔，以防止各个电化学电池20之间的直接接触以及可能的短路。
参照图3和图4，集电端子22和23包括一对间隔开的臂部32和34，所述一对间隔开的臂部32和34彼此分开以在其间形成凹部38。该凹部38的形状形成为使得其能够在被卷压到电化学电池20的正极的所有集电器或负极的锂箔的所有延伸部上之前将集电器或锂箔的延伸部紧贴地容纳在其中。如所示出的，集电端子22和23的折叠的延伸臂部26朝向臂部34向后弯曲，使得当被并排定位时，集电端子22和23的折叠的臂部26远离彼此延伸。如图3和图4中示出地，折叠的延伸臂部26特意向后弯曲以引起折叠的臂部26的形状记忆特性，使得当折叠的臂部26没有机械连接在一起时，以及更重要地，万一该机械连接断开时，折叠的臂部26将趋于远离彼此移动。
参照图5，集电端子22的所述一对臂部32和34卷压到第一电化学电池20的所有正极的所有集电器上，并且集电端子23的所述一对臂部32和34卷压到与第一电化学电池20相邻的第二电化学电池20的所有负极的锂金属箔的所有延伸部上。折叠的延伸臂部26由于它们的初始形状而保持向后弯曲并间隔开。
参照图6，相邻的集电端子22和23的折叠的延伸臂部26结合在一起并且它们的边缘如由深黑色迹线28所示地焊接在一起。如图1中所示，延伸臂部26的边缘被沿着它们的整个长度焊接。折叠的延伸臂部26通过诸如铋(Bi)或铋-锡(Bi-Sn)之类的具有180℃或低于180℃的熔化温度Tf的特定金属或金属合金来焊接，以实现集电端子22与第一电化学电池20之间以及集电端子23与第二电化学电池20之间的电气连接。
在具有多个电化学电池20的电池组中发生内部短路的情况下，电池组的温度、特别是正经历内部短路的一个或多个电化学电池20的温度将迅速上升到不安全水平。当电化学电池20中的一个电化学电池的温度达到焊接金属的熔化温度Tf(180℃或低于180℃)时，该焊接金属将熔化，从而导致折叠的延伸臂部26如图5中的带点的箭头S所示地回弹到它们的初始形状并且分离，从而断开相邻的电化学电池之间的电气连接以及切断短路并防止在短路没有被切断的情况下理论上将发生的温度迅速上升。折叠的延伸臂部26的形状记忆与用于焊接两个相邻的集电端子22和23的金属的熔化温度Tf的组合为电池组提供了增加的安全特征，该安全特征使得在发生内部短路的情况下一个或多个电化学电池20能够被电隔离。
图7示出了本发明的第二实施方式，其中，相同的集电端子22和23补充有偏置装置40，偏置装置40为由不导电橡胶、不导电塑料或不导电聚合物制成的弹性绳、弹性管或弹性棒的形式，该偏置装置40定位在两个相邻的集电端子22和23的折叠的延伸臂部26之间并且该偏置装置40沿着集电端子22和23的长度延伸。如前所述，折叠的延伸臂部26向后弯曲并且具有形状记忆特性，使得当折叠的延伸臂部26没有机械连接在一起时其趋于远离彼此移动。偏置装置40为折叠的延伸臂部26的形状记忆特性提供了附加的力，使得回弹力在焊接金属熔化时增大。偏置装置40还确保了相邻的集电端子22和23的折叠的延伸臂部26在分离时不会重新连接。
如图8中所示，集电端子22的所述一对臂部32和34卷压到第一电化学电池20的所有正极的所有集电器上，并且所述集电端子23的所述一对臂部32和34卷压到与第一电化学电池20相邻的第二电化学电池20的所有负极的锂金属箔的所有延伸部上。折叠的延伸臂部26由于其初始形状而保持向后弯曲并间隔开。橡胶绳形式的偏置装置40如图所示地被插入在所述两个相邻的折叠的延伸臂部26之间的空间中。参照图9，相邻的集电端子22和23的折叠的延伸臂部26结合在一起并且它们的边缘如由深黑色迹线28所示地焊接在一起。如图1中所示，延伸臂部26的边缘被沿着整个长度焊接。如图9中所示，折叠的延伸臂部26结合在一起并且它们的边缘如由深黑色迹线28所示地焊接在一起。折叠的延伸臂部26通过诸如铋(Bi)或铋-锡合金(Bi-Sn)之类的具有180℃或低于180℃的熔化温度Tf的特定金属或金属合金来焊接，以实现集电端子22与第一电化学电池20之间以及集电端子23与第二电化学电池20之间的电气连接并且偏置装置40被挤压并阻拦在所焊接的延伸臂部26之间。
在具有多个电化学电池20的电池组中发生内部短路的情况下，电池组的温度、特别是正经历内部短路的一个或多个电化学电池20的温度将迅速上升到不安全水平。当电化学电池20中的一个电化学电池的温度达到焊接金属的熔化温度Tf(180℃或低于180℃)时，该焊接金属熔化并且折叠的延伸臂部26被折叠的延伸臂部26的形状记忆特性以及被挤压在张回到其初始形状的折叠的延伸臂部26之间的偏置装置40的力迫使向外如图8中的带点的箭头S所示地回弹到它们的初始形状。折叠的延伸臂部26分离，从而切断相邻的电化学电池之间的电气连接和短路，并防止在电气连接没有被切断的情况下理论上将发生的温度迅速上升。偏置装置40提供了附加的力，从而一旦焊接金属熔化便使折叠的延伸臂部26分离。焊接金属的熔化温度Tf、折叠的延伸臂部26的形状记忆以及偏置装置40的组合为电池组提供了附加的安全特征，该安全特征使得在发生内部短路的情况下一个或多个电化学电池20能够被电隔离。
对本领域的普通技术人员而言，本发明的上述实施方式的改型和改进会变得明显。前面的描述意在为示例性的而非限制性的。因此，本发明的范围意在仅由所附权利要求的范围来限制。

Claims (7)

1.一种电池组，包括串联或并联连接的多个电化学电池，
每个电化学电池均包括一系列初级层压制件，所述一系列初级层压制件各自包括负极、正极、设置在所述负极与所述正极之间的电解质、从所述初级层压制件的一侧延伸的正极集电器以及从所述初级层压制件的相反侧延伸的负极集电器，
每个电化学电池均具有将所述正极集电器连接在一起的集电端子以及将所述负极集电器连接在一起的集电端子，
所述集电端子各自具有用于将两个相邻的电化学电池电连接在一起的折叠的延伸臂部，所述折叠的延伸臂部具有形状记忆特性，
所述电化学电池通过以具有低于180℃的熔化温度Tf的焊接金属焊接在一起的相邻的集电端子的所述折叠的延伸臂部电连接在一起，由此，如果电化学电池的温度上升到所述焊接金属的所述熔化温度Tf以上，则焊接连接熔化并且所述集电端子的所述折叠的延伸臂部回弹到所述折叠的延伸臂部的初始形状，从而切断温度在所述焊接金属的所述熔化温度Tf以上的电化学电池与相邻的电化学电池之间的电连接。
2.根据权利要求1所述的电池组，其中，所述负极由用作所述负极和所述负极的所述集电器两者的锂金属箔构成。
3.根据权利要求1所述的电池组，其中，所述集电端子的所述折叠的延伸臂部最初被向后弯曲，以引起所述折叠的延伸臂部的所述形状记忆特性。
4.根据权利要求1所述的电池组，其中，所述焊接金属从铋和铋基合金的组中选择。
5.根据权利要求1所述的电池组，还包括偏置装置，所述偏置装置定位在两个相邻的集电端子的所述折叠的延伸臂部之间，所述偏置装置沿着所述折叠的延伸臂部的长度延伸，从而为所述折叠的延伸臂部的所述形状记忆特性提供了附加的力，使得回弹力在焊接连接熔化时增大。
6.根据权利要求5所述的电池组，其中，所述偏置装置从弹性绳、弹性管和弹性棒的组中选择。
7.根据权利要求6所述的电池组，其中，所述偏置装置由不导电材料制成。
CN201180042613.6A 2010-09-02 2011-09-02 用于电化学电池的集电端子 Active CN103081178B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12/874,808 2010-09-02
US12/874,808 US8557419B2 (en) 2010-09-02 2010-09-02 Shape memory current collecting terminals for electrochemical cells
PCT/CA2011/000997 WO2012027835A1 (en) 2010-09-02 2011-09-02 Current collecting terminal for electrochemical cells

Publications (2)

Publication Number Publication Date
CN103081178A true CN103081178A (zh) 2013-05-01
CN103081178B CN103081178B (zh) 2016-01-13

Family

ID=45770952

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201180042613.6A Active CN103081178B (zh) 2010-09-02 2011-09-02 用于电化学电池的集电端子

Country Status (7)

Country Link
US (1) US8557419B2 (zh)
EP (1) EP2612387B1 (zh)
JP (1) JP5894162B2 (zh)
KR (1) KR101929061B1 (zh)
CN (1) CN103081178B (zh)
CA (1) CA2809212C (zh)
WO (1) WO2012027835A1 (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107112486A (zh) * 2014-12-13 2017-08-29 奥迪股份公司 蓄能电池、电蓄能器和机动车
CN108365154A (zh) * 2018-01-31 2018-08-03 北京海博思创科技有限公司 软包电池芯单元、软包电池芯及软包电池
CN111048735A (zh) * 2019-12-28 2020-04-21 横店集团东磁股份有限公司 一种自控温-限流锂离子电池极片及其制备方法和用途
CN116131037A (zh) * 2023-02-24 2023-05-16 深圳市振欢电子有限公司 一种防爆型电源适配器

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102842700B (zh) * 2012-08-14 2015-12-16 厦门太和动力电源科技有限公司 一种大容量高输出比功率聚锂电池结构
CN104795527B (zh) * 2014-01-21 2018-07-17 微宏动力系统（湖州）有限公司 电池模块
JP6725382B2 (ja) 2016-09-21 2020-07-15 株式会社東芝 組電池、電池パックおよび車両
JP6677671B2 (ja) 2017-03-21 2020-04-08 株式会社東芝 二次電池、電池パック、及び車両
KR20230092026A (ko) 2017-05-17 2023-06-23 에이치헬리, 엘엘씨 산성화 캐소드와 리튬 애노드를 가진 배터리
DE102017220505B4 (de) 2017-11-16 2024-03-28 Te Connectivity Germany Gmbh Anschlusselement zur mechanischen und elektrischen Verbindung mit einem Kontaktelement einer elektrischen Speicherzelle, insbesondere einer Kontaktfahne einer Pouch-Zelle, sowie elektrisches Speicherzellenmodul
US10873067B2 (en) * 2018-08-22 2020-12-22 Microsoft Technology Licensing, Llc Folding tab for ultra-thin battery cell connection
KR102532768B1 (ko) * 2018-11-30 2023-05-12 주식회사 엘지에너지솔루션 안전성이 개선된 배터리 모듈, 이러한 배터리 모듈을 포함하는 배터리 팩 및 이러한 배터리 팩을 포함하는 자동차
FR3110772B1 (fr) 2020-05-20 2022-12-02 Accumulateurs Fixes Ensemble électrochimique, procédé et installation de fabrication correspondants

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5188909A (en) * 1991-09-12 1993-02-23 Eveready Battery Co., Inc. Electrochemical cell with circuit disconnect device
CN1412876A (zh) * 2001-10-18 2003-04-23 三星Sdi株式会社 带有热防护器的可充电电池
US20040028999A1 (en) * 2002-04-30 2004-02-12 Laliberte Richard Electrochemical bundle and method for making same

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03149727A (ja) * 1989-11-06 1991-06-26 Kokonoe Denki Kk 可溶遮断器
JP3261688B2 (ja) 1994-08-23 2002-03-04 キヤノン株式会社 二次電池及びその製造方法
KR0158845B1 (ko) 1995-07-28 1999-02-18 배순훈 리튬건전지의 과부하 방지구조
US5691073A (en) 1996-04-10 1997-11-25 Duracell Inc. Current interrupter for electrochemical cells
US6524741B1 (en) * 2000-08-24 2003-02-25 Valence Technology, Inc. Battery package with integral disconnect mechanism
JP4554436B2 (ja) * 2005-05-25 2010-09-29 内橋エステック株式会社 サーモプロテクタ及びその製作方法
JP2008181822A (ja) * 2007-01-25 2008-08-07 Sanyo Electric Co Ltd 電池パック及びその製造方法
BRPI0819682B1 (pt) 2007-11-29 2019-04-24 Lg Chem, Ltd. Bateria contendo pcm empregado com elemento de segurança
US20090159354A1 (en) * 2007-12-25 2009-06-25 Wenfeng Jiang Battery system having interconnected battery packs each having multiple electrochemical storage cells
US8092936B2 (en) * 2007-12-25 2012-01-10 Byd Co. Ltd. Electrochemical cell having a coiled core
WO2010133176A1 (en) * 2009-05-21 2010-11-25 Byd Company Limited Current fuse device and battery assembly comprising the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5188909A (en) * 1991-09-12 1993-02-23 Eveready Battery Co., Inc. Electrochemical cell with circuit disconnect device
CN1412876A (zh) * 2001-10-18 2003-04-23 三星Sdi株式会社 带有热防护器的可充电电池
US20040028999A1 (en) * 2002-04-30 2004-02-12 Laliberte Richard Electrochemical bundle and method for making same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107112486A (zh) * 2014-12-13 2017-08-29 奥迪股份公司 蓄能电池、电蓄能器和机动车
US10355265B2 (en) 2014-12-13 2019-07-16 Audi Ag Electric energy storage cell, electric energy storage device and motor vehicle
CN108365154A (zh) * 2018-01-31 2018-08-03 北京海博思创科技有限公司 软包电池芯单元、软包电池芯及软包电池
CN111048735A (zh) * 2019-12-28 2020-04-21 横店集团东磁股份有限公司 一种自控温-限流锂离子电池极片及其制备方法和用途
CN111048735B (zh) * 2019-12-28 2021-05-14 横店集团东磁股份有限公司 一种自控温-限流锂离子电池极片及其制备方法和用途
CN116131037A (zh) * 2023-02-24 2023-05-16 深圳市振欢电子有限公司 一种防爆型电源适配器
CN116131037B (zh) * 2023-02-24 2023-10-20 深圳市振欢电子有限公司 一种防爆型电源适配器

Also Published As

Publication number Publication date
CN103081178B (zh) 2016-01-13
CA2809212A1 (en) 2012-03-08
US8557419B2 (en) 2013-10-15
WO2012027835A8 (en) 2013-04-18
WO2012027835A1 (en) 2012-03-08
KR101929061B1 (ko) 2018-12-13
JP2013539179A (ja) 2013-10-17
JP5894162B2 (ja) 2016-03-23
CA2809212C (en) 2019-02-12
US20120058371A1 (en) 2012-03-08
EP2612387A4 (en) 2015-08-05
EP2612387A1 (en) 2013-07-10
KR20140004630A (ko) 2014-01-13
EP2612387B1 (en) 2018-07-18

Similar Documents

Publication Publication Date Title
CN103081178B (zh) 用于电化学电池的集电端子
KR101935059B1 (ko) 전기화학 전지용 집전 단자
EP2672549B1 (en) Secondary battery and multi-battery system having a connecting component
JP3210593B2 (ja) リチウム二次電池
KR101433199B1 (ko) 배터리 모듈 및 배터리 모듈에 적용되는 버스 바
KR101370264B1 (ko) 솔더링 커넥터와, 이를 포함하는 배터리 모듈 및 배터리 팩
KR102163656B1 (ko) 배터리 모듈과 이를 포함하는 배터리 팩 및 자동차
CN103066339B (zh) 整体式单元电压感测线路熔断装置
KR102201344B1 (ko) 배터리 모듈과 이를 포함하는 배터리 팩 및 자동차
KR20180119106A (ko) 전도성 폴리머를 이용한 전극리드를 포함하는 파우치형 이차전지
KR20180090100A (ko) 과충전시 안전성 확보를 위한 단락 구조물 및 이를 포함하는 파우치형 이차전지
KR20130014250A (ko) 안전성이 향상된 이차전지 및 이를 이용한 중대형 전지팩
KR20170053886A (ko) 이차전지용 보호회로 및 그것의 제어방법
KR101641621B1 (ko) 안전성이 향상된 파우치형 이차 전지 및 배터리 팩
KR20170043736A (ko) 안전소자를 포함하고 있는 전극조립체 및 그것을 포함하고 있는 이차전지
JP2001357893A (ja) リチウム二次電池

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant