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DE10240112A1 - battery assembly - Google Patents

battery assembly Download PDF

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Publication number
DE10240112A1
DE10240112A1 DE10240112A DE10240112A DE10240112A1 DE 10240112 A1 DE10240112 A1 DE 10240112A1 DE 10240112 A DE10240112 A DE 10240112A DE 10240112 A DE10240112 A DE 10240112A DE 10240112 A1 DE10240112 A1 DE 10240112A1
Authority
DE
Germany
Prior art keywords
contact
soldering
parts
solder
battery
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.)
Withdrawn
Application number
DE10240112A
Other languages
German (de)
Inventor
Dietmar Eltermann
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.)
IONITY AG
Original Assignee
IONITY AG
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 IONITY AG filed Critical IONITY AG
Priority to DE10240112A priority Critical patent/DE10240112A1/en
Priority to PCT/DE2003/002716 priority patent/WO2004021480A1/en
Priority to DE10393674T priority patent/DE10393674D2/en
Priority to AU2003260266A priority patent/AU2003260266A1/en
Publication of DE10240112A1 publication Critical patent/DE10240112A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H01M10/04—Construction or manufacture in general
    • H01M10/0436—Small-sized flat cells or batteries for portable equipment
    • 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
    • H01M50/564—Terminals characterised by their manufacturing process
    • H01M50/566—Terminals characterised by their manufacturing process 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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
    • H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
    • H05K3/3457—Solder materials or compositions; Methods of application thereof
    • H05K3/3463—Solder compositions in relation to features of the printed circuit board or the mounting process
    • 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
    • H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
    • H01M10/0565—Polymeric materials, e.g. gel-type or solid-type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/62—Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
    • H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
    • H05K3/341—Surface mounted components
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

Die vorliegende Erfindung betrifft ein Verfahren zur Verbindung eines Aluminium-Ableiters einer Flachbatterie an einen Kontakt.The present invention relates to a method for connecting an aluminum arrester of a flat battery to a contact.

Description

Die vorliegende Erfindung betrifft ein Verfahren zur Verbindung eines Aluminium-Ableiters einer Flachbatterie an einen Kontakt.The present invention relates to a method for connecting an aluminum arrester of a flat battery to a contact.

Flachbatterien, wie beispielsweise Lithiumionen-, Lithiumpolymer- oder Lithiumionenpolymer-Batterien sind im Stand der Technik bekannt. Derzeit werden zur Verbindung der Aluminium-Ableiter dieser Flachbatterien an Kontakte, beispielsweise an Leiterplatten mit Metallbahnen, teure und aufwendige Punkt- oder Ultraschweissverfahren verwendet.Flat batteries, such as Lithium ion, lithium polymer or lithium ion polymer batteries are known in the art. Currently being connected the aluminum arrester of these flat batteries to contacts, for example Printed circuit boards with metal tracks, expensive and expensive point or Ultrasonic welding process used.

Eine Aufgabe der vorliegenden Erfindung bestand darin, ein verbessertes Verfahren zur Verbindung der Aluminium-Ableiter an Kontakt bereitzustellen.An object of the present invention was therein, an improved method of connecting the aluminum arresters to provide contact.

Diese Aufgabe wird erfindungsgemäß gelöst durch ein Verfahren zur Verbindung eines Aluminium-Ableiters einer Flachbatterie an einen Kontakt, welches dadurch gekennzeichnet ist, dass der Aluminium-Ableiter mithilfe eines Lotmittels an den Kontakt angelötet wird.According to the invention, this object is achieved by a method for connecting an aluminum arrester of a flat battery to a contact, which is characterized in that the aluminum arrester is soldered to the contact using a solder.

Überraschenderweise wurde festgestellt, dass die Aluminium-Ableiter von Flachbatterien unter Verwendung eines Lots direkt an externe Kontakte angelötet werden können. Dadurch kann das bisher verwendete Ultraschweissverfahren, welches aufwendig und kostenintensiv ist, durch ein einfaches und in hohem Maße reproduzierbares Lötverfahren ersetzt werden. Dies ergibt Kosteneinsparungen in der Bearbeitungszeit, beim eingesetzten Material und in den Investitionen bei gleichzeitig gesteigerten Leitwerten der Batterie. Insbesondere kann durch das erfindungsgemäße Lötverfahren ein niedriger Innenwiderstand und ein geringer Übergangswiderstand erzielt werden. Darüber hinaus liefert das Lötverfahren eine hohe Reproduzierbarkeit.Surprisingly it was found that the aluminum arrester from flat batteries can be soldered directly to external contacts using a solder can. This allows the previously used ultrasonic welding process, which is complex and costly, through a simple and high Dimensions reproducible Soldering process replaced become. This results in cost savings in processing time, in the material used and in the investments at the same time increased conductivity of the battery. In particular, the soldering method according to the invention achieved a low internal resistance and a low contact resistance become. About that the soldering process also provides high reproducibility.

In einer bevorzugten Ausführungsform handelt es sich bei den Flachbatterien um Lithiumionen-, Lithiumpolymer- oder Lithiumionenpolymerbatterien. Darüber hinaus können als Flachbatterien auch NiMH-Batterien Verwendung finden. Bei dem Kontakt handelt es sich um einen externen Kontakt, mit dem die Batterie verbunden wird. Der Kontakt kann aus jedem leitenden Material, vorzugsweise aus einem Metall bestehen. Geeignete Materialien für den Kontakt sind beispielsweise Edelstahl, Kupfer, Zinn, Nickel, Silber oder Gold. Im einfachsten Fall besteht der Kontakt aus einem Kabel oder einem Draht, es kann sich aber auch um eine Metallbahn auf einer Leiterplatte handeln. in einer bevorzugten Ausführungsform wird der Aluminium-Ableiter einer Flachbatterie, insbesondere einer Lithiumionen-, einer Lithiumpolymer-, einer Lithiumionenpolymer- oder einer Lithiumprimär-Batterie mit einem Nickelableiter einer Leiterplatte verbunden.In a preferred embodiment the flat batteries are lithium ion, lithium polymer or lithium ion polymer batteries. In addition, as Flat batteries can also be used with NiMH batteries. When the contact acts it is an external contact to which the battery is connected becomes. The contact can be made of any conductive material, preferably consist of a metal. Suitable materials for contact are for example stainless steel, copper, tin, nickel, silver or gold. In the simplest case, the contact consists of a cable or a Wire, but it can also be a metal track on a printed circuit board act. in a preferred embodiment, the aluminum arrester a flat battery, in particular a lithium ion, a lithium polymer, a lithium ion polymer or a lithium primary battery connected to a nickel conductor of a printed circuit board.

Erfindungsgemäß wurde festgestellt, dass besonders gute Verbindungen mit speziellen Lotmitteln erhalten wurden, welche ein integriertes Flussmittel enthalten. Der Anteil des Flussmittels beträgt dabei vorzugsweise 0,1 bis 5 Gew.-%, mehr bevorzugt 0,5 bis 2 Gew.-% des Lots. In einer besonders bevorzugten Ausführungsform besteht das Lot aus 60 bis 90 Gew.-Teilen, insbesondere 70 bis 85 Gew.-Teilen und besonders bevorzugt etwa 80 Gew.-Teilen Pb, 10 bis 25 Gew.-Teilen, bevorzugt 15 bis 20 Gew.-Teilen und besonders bevorzugt etwa 18 Gew.-Teilen Zn, 0,1 bis 5 Gew.-Teilen, insbesondere 0,5 bis 2 Gew.-Teilen und besonders bevorzugt etwa 1 Gew.-Teil Ag und dem Rest Flussmittel. Durch die Verwendung eines solchen speziellen Lots, beispielsweise des Lots Alusol, welches ein integriertes Flussmittel enthält, können Aluminium-Ableiter direkt auf Leiterplatten an Edelstahl-, Kupfer-, Zinn-, Nickel-, Silber- oder Goldbahnen angelötet werden.According to the invention it was found that particularly good connections were obtained with special soldering agents, which contain an integrated flux. The proportion of the flux amounts to preferably 0.1 to 5% by weight, more preferably 0.5 to 2% by weight of the Lots. In a particularly preferred embodiment, the solder is made from 60 to 90 parts by weight, in particular 70 to 85 parts by weight and particularly preferably about 80 parts by weight of Pb, 10 to 25 parts by weight, preferably 15 to 20 parts by weight and particularly preferably about 18 parts by weight Zn, 0.1 to 5 parts by weight, in particular 0.5 to 2 parts by weight and particularly preferably about 1 part by weight of Ag and the rest of the flux. By using such a special solder, for example of the solder Alusol, which contains an integrated flux, can be aluminum arresters directly on printed circuit boards on stainless steel, copper, tin, nickel, Silver or gold tracks soldered become.

Im erfindungsgemäßen Verfahren kann das Anlöten in der Einzelanwendung beispielsweise mittels herkömmlichen Lotkolben, mittels Induktivlötung, mittels Laserlötung oder mittels Mikroflammlötung erfolgen. Besonders bevorzugt erfolgt die Anlötung berührungslos mittels eines Halogen-Selektiv-Lötsystems. Die Lötung kann dabei vollautomatisch erfolgen, wodurch eine weitere Verbesserung der Reproduzierbarkeit erzielt wird. In allen Fällen ist eine Ultraschallschweissung erfindungsgemäß nicht erforderlich.In the method according to the invention, the soldering in the Single application, for example using conventional soldering irons, by means of Inductive soldering, by means of laser soldering or using microflame soldering respectively. The soldering is particularly preferably carried out without contact by means of a halogen selective soldering system. The soldering can be done fully automatically, making a further improvement reproducibility is achieved. In all cases there is an ultrasonic welding not according to the invention required.

Die Erfindung betrifft weiterhin die mit dem erfindungsgemäßen Verfahren erhältlichen Batterien. Diese Batterien sind durch ein Lot über Aluminiumableiter mit einem Kontakt verbunden.The invention further relates to with the method according to the invention available Batteries. These batteries are soldered through a solder over aluminum Contact connected.

Claims (8)

Verfahren zur Verbindung eines Aluminium-Ableiters einer Flachbatterie an einen Kontakt, dadurch gekennzeichnet, dass der Aluminium-Ableiter mithilfe eines Lötmittels an den Kontakt angelötet wird.Method for connecting an aluminum arrester of a flat battery to a contact, characterized in that the aluminum arrester is soldered to the contact using a solder. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass es sich bei der Flachbatterie um eine Lithiumionen-Batterie, eine Lithiumpolymer-Batterie oder eine Lithiumionenpolymer-Batterie handelt.A method according to claim 1, characterized in that the flat battery is a lithium ion battery, a lithium polymer battery or a lithium ion polymer battery is. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Kontakt aus Edelstahl, Kupfer, Zinn, Nickel, Silber oder Gold besteht.A method according to claim 1 or 2, characterized in that that the contact made of stainless steel, copper, tin, nickel, silver or Gold exists. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass es sich bei dem Kontakt um eine Metallbahn auf einer Leiterplatte handelt.Method according to one of claims 1 to 3, characterized in that that the contact is a metal sheet on a circuit board is. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Lotmittel ein integriertes Flussmittel enthält.Method according to one of the preceding claims, characterized characterized that the solder is an integrated flux contains. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Lotmittel aus 60 bis 90 Teilen Pb, 10 bis 25 Teilen Zn, 0,1 bis 5 Teilen Ag und dem Rest Flussmittel besteht.Method according to one of the preceding claims, characterized characterized in that the solder from 60 to 90 parts Pb, 10 to 25 parts of Zn, 0.1 to 5 parts of Ag and the rest of the flux. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Anlöten mittels Lötkolben, Induktivlötung, Laserlötung, Mikroflammenlötung oder mittels eines Halogenselektivlötsystems erfolgt.Method according to one of the preceding claims, characterized characterized that soldering using a soldering iron, Induktivlötung, Laser soldering, microflame soldering or using a halogen selective soldering system he follows. Mit einem Kontakt verbundene Flachbatterie, erhältlich nach einem Verfahren nach einem der Ansprüche 1 bis 7.Flat battery connected to a contact, available after a method according to one of claims 1 to 7.
DE10240112A 2002-08-30 2002-08-30 battery assembly Withdrawn DE10240112A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE10240112A DE10240112A1 (en) 2002-08-30 2002-08-30 battery assembly
PCT/DE2003/002716 WO2004021480A1 (en) 2002-08-30 2003-08-12 Method for connecting an aluminum charge eliminator of a flat battery to a contact
DE10393674T DE10393674D2 (en) 2002-08-30 2003-08-12 Method for connecting an aluminum arrester of a flat battery to a contact
AU2003260266A AU2003260266A1 (en) 2002-08-30 2003-08-12 Method for connecting an aluminum charge eliminator of a flat battery to a contact

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10240112A DE10240112A1 (en) 2002-08-30 2002-08-30 battery assembly

Publications (1)

Publication Number Publication Date
DE10240112A1 true DE10240112A1 (en) 2004-05-27

Family

ID=31969012

Family Applications (2)

Application Number Title Priority Date Filing Date
DE10240112A Withdrawn DE10240112A1 (en) 2002-08-30 2002-08-30 battery assembly
DE10393674T Expired - Fee Related DE10393674D2 (en) 2002-08-30 2003-08-12 Method for connecting an aluminum arrester of a flat battery to a contact

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE10393674T Expired - Fee Related DE10393674D2 (en) 2002-08-30 2003-08-12 Method for connecting an aluminum arrester of a flat battery to a contact

Country Status (3)

Country Link
AU (1) AU2003260266A1 (en)
DE (2) DE10240112A1 (en)
WO (1) WO2004021480A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2937438A (en) * 1958-07-14 1960-05-24 Lloyd C Lemon Method for joining aluminum to stainless steel
US3105293A (en) * 1958-10-23 1963-10-01 Union Carbide Corp Brazing dissimilar metal members
US3497400A (en) * 1967-09-14 1970-02-24 Aluminum Co Of America Soldering flux
US4129744A (en) * 1976-08-02 1978-12-12 Rca Corporation Solder connection between copper and aluminum conductors
US4352450A (en) * 1980-09-19 1982-10-05 Edgington Robert E Method for soldering aluminum
CN1121072C (en) * 1997-10-07 2003-09-10 松下电器产业株式会社 Non-aqueous electrolyte secondary cell

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Aluminium-Taschenbuch 1963, S. 517,518 *

Also Published As

Publication number Publication date
DE10393674D2 (en) 2005-07-14
AU2003260266A1 (en) 2004-03-19
WO2004021480A1 (en) 2004-03-11

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Legal Events

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OP8 Request for examination as to paragraph 44 patent law
8143 Lapsed due to claiming internal priority