CA2567548A1 - Electrical connection structure for a core assembly of a secondary lithium battery - Google Patents

Electrical connection structure for a core assembly of a secondary lithium battery Download PDF

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Publication number
CA2567548A1
CA2567548A1 CA002567548A CA2567548A CA2567548A1 CA 2567548 A1 CA2567548 A1 CA 2567548A1 CA 002567548 A CA002567548 A CA 002567548A CA 2567548 A CA2567548 A CA 2567548A CA 2567548 A1 CA2567548 A1 CA 2567548A1
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CA
Canada
Prior art keywords
conductive
core assembly
positive
core
pressing piece
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
CA002567548A
Other languages
French (fr)
Other versions
CA2567548C (en
Inventor
Donald P. H. Wu
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.)
Pihsiang Energy Technology Co Ltd
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA2567548A priority Critical patent/CA2567548C/en
Publication of CA2567548A1 publication Critical patent/CA2567548A1/en
Application granted granted Critical
Publication of CA2567548C publication Critical patent/CA2567548C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01M10/05—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
    • 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
    • H01M50/538—Connection of several leads or tabs of wound or folded electrode stacks
    • 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
    • H01M50/533—Electrode connections inside a battery casing characterised by the shape of the leads or tabs
    • 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
    • H01M50/536—Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
    • 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

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Secondary Cells (AREA)

Abstract

An electrical connection structure for a core assembly of a secondary lithium battery employs a conductive connecting assembly as an electrical conductive connection to connect the core assembly to the positive or negative lead terminal.
The conductive pressing piece is a flexible structure. By such arrangements, even if there is a dimension error in the core or the case, which can be overcome by the deformation of the conductive fixing assemblies, and thus the battery can be assembled successfully. The bolt enables the conductive pressing piece to be maintained in a close electrical contact with the positive or negative lead area, and the connecting portion is electrically connected to the positive lead terminal or the negative lead terminal of the battery case.

Claims (5)

1. ~An electrical connection structure, for a core assembly of a secondary lithium battery comprising: two conductive fixing assemblies arranged at both ends of a core assembly, the conductive fixing assemblies being electrically connected to a positive lead terminal or a negative lead terminal of a case of battery;
wherein the core assembly includes a core and an electrode assembly, the electrode assembly includes at least one positive layer, one separating layer and one negative layer that are superposed one another and then wind around the core, an uncoated area is formed at a side of the positive layer for use as a positive lead area, and the negative layer is formed at another side thereof opposite the positive layer with an uncoated area for use as a negative lead area, the positive and negative lead areas protrude out of both sides of the core assembly;

each of the conductive fixing assemblies includes at least one bolt and one conductive pressing piece, the conductive pressing piece is a flexible and curved structure having two connecting ends and a connecting portion formed between the connecting ends, the conductive pressing piece is disposed outside the positive lead area or the negative lead area, the bolt passes through a through hole of the conductive pressing piece and then is fixed on the core, so that the conductive pressing piece is firmly pressed against and is maintained in a close electrical contact with the positive lead area or the negative lead area, and the connecting portion is electrically connected to the positive lead terminal or the negative lead terminal of the case.
2. ~The electrical connection structure for a core assembly of a secondary lithium battery as claimed in claim 'I, wherein either end of the core is covered with a conductive sleeve.
3. ~The electrical connection structure for a core assembly of a secondary lithium battery as claimed in claim 1, wherein the case of the battery is circular.
4. ~The electrical connection structure for a core assembly of a secondary lithium battery as claimed in claim 1, wherein the case of the battery is square.
5. ~The electrical connection structure for a core assembly of a secondary lithium battery as claimed in claim 4, wherein the core assembly is additionally provided with two conductive members after being installed in a square case, one end of the respective conductive members is connected to the conductive pressing piece, and another end of the respective conductive members is connected to positive lead terminal or negative lead terminal of the battery.
CA2567548A 2006-09-26 2006-09-26 Electrical connection structure for a core assembly of a secondary lithium battery Active CA2567548C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2567548A CA2567548C (en) 2006-09-26 2006-09-26 Electrical connection structure for a core assembly of a secondary lithium battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA2567548A CA2567548C (en) 2006-09-26 2006-09-26 Electrical connection structure for a core assembly of a secondary lithium battery

Publications (2)

Publication Number Publication Date
CA2567548A1 true CA2567548A1 (en) 2008-03-26
CA2567548C CA2567548C (en) 2011-05-10

Family

ID=39264194

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2567548A Active CA2567548C (en) 2006-09-26 2006-09-26 Electrical connection structure for a core assembly of a secondary lithium battery

Country Status (1)

Country Link
CA (1) CA2567548C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112928397A (en) * 2019-12-06 2021-06-08 株式会社Lg化学 Battery module, battery pack including the same, and vehicle including the battery pack

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112928397A (en) * 2019-12-06 2021-06-08 株式会社Lg化学 Battery module, battery pack including the same, and vehicle including the battery pack
CN112928397B (en) * 2019-12-06 2022-12-20 株式会社Lg新能源 Battery module, battery pack including the same, and vehicle including the battery pack

Also Published As

Publication number Publication date
CA2567548C (en) 2011-05-10

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