NZ761684A - Battery module - Google Patents

Battery module

Info

Publication number
NZ761684A
NZ761684A NZ761684A NZ76168418A NZ761684A NZ 761684 A NZ761684 A NZ 761684A NZ 761684 A NZ761684 A NZ 761684A NZ 76168418 A NZ76168418 A NZ 76168418A NZ 761684 A NZ761684 A NZ 761684A
Authority
NZ
New Zealand
Prior art keywords
batteries
outer peripheral
electrode
battery holder
lead plate
Prior art date
Application number
NZ761684A
Other versions
NZ761684B2 (en
Inventor
Masami Haino
Koichi Muramatsu
Kouji Fukushima
Original Assignee
Panasonic Energy Co Ltd
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 Panasonic Energy Co Ltd filed Critical Panasonic Energy Co Ltd
Publication of NZ761684A publication Critical patent/NZ761684A/en
Publication of NZ761684B2 publication Critical patent/NZ761684B2/en

Links

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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • 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
    • H01M50/30—Arrangements for facilitating escape of gases
    • 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
    • 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
    • H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
    • 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
    • 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
    • H01M50/528—Fixed electrical connections, i.e. not intended for disconnection
    • 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
    • H01M50/578—Devices or arrangements for the interruption of current in response to pressure
    • 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)
  • Battery Mounting, Suspending (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Gas Exhaust Devices For Batteries (AREA)

Abstract

According to the present invention, lead plates are reliably connected to protruding electrodes, and potting resin is prevented from flowing into discharge ports of the protruding electrodes. According to the present invention, a plurality of batteries 1 are arranged in fixed positions by a battery holder. Lead plates 3 are connected to protruding electrodes 11 of the batteries 1 and thermally bonded by a potting resin 13. The battery holder has outer peripheral cover parts 21 that have electrode windows 24 that expose the protruding electrodes 11. The lead plates 3 have flat parts 31 that have local connection recesses 32 at which protruding surfaces 33 protrude into the electrode windows 24 toward the protruding electrodes 11. First two-sided tape 4 is stuck between outer peripheral edge parts of the batteries 1 and the outer peripheral cover parts 21 of the battery holder. Second two-sided tape 5 is stuck between the outer peripheral cover parts 21 of the battery holder and the flat parts 31 of the lead plates 3. Sealing labels 6 are stuck at the flat parts 31 of the lead plates 3 to close the openings of the connection recesses 32 and thereby block the potting resin 13 from flowing into discharge ports that are provided in the protruding electrodes 11.

Claims (5)

1. A battery module comprising: a plurality of batteries each including an outlet of a discharge valve 5 disposed in a projecting electrode on an end face of each of the plurality of batteries, the discharge valve being configured to open when an internal pressure of each of the plurality of batteries rises to a set pressure; a battery holder arranging the plurality of batteries parallel to each other at fixed positions; 10 a lead plate connected to the projecting electrode of each of the plurality of batteries that are arranged at the fixed positions by the battery holder, the end face of each of the plurality of batteries being disposed on a same plane; and a potting resin thermally coupled to the lead plate, wherein the battery holder includes an outer peripheral cover having an 15 electrode window to expose the projecting electrode and being disposed on a plane facing an outer peripheral edge of the projecting electrode, the lead plate includes: a planar part disposed over a surface of the outer peripheral cover; and 20 a connection recess disposed in the planar part, the connection recess being guided into the electrode window in the battery holder and protruding toward the projecting electrode to connect a protrusion face of the connection recess to the projecting electrode, a first double-sided tape provides a tight fit between an outer peripheral 25 part of each of the plurality of batteries and the outer peripheral cover of the battery holder to ensure that the outer peripheral part of each of the plurality of batteries fits tightly over the outer peripheral cover, a second double-sided tape provides a tight fit between the outer peripheral cover of the battery holder and the planar part of the lead plate to ensure that the outer peripheral cover fits tightly over the planar part of the lead plate, 5 a sealing label is put into intimate contact with the planar part of the lead plate to ensure that the sealing label closes an opening of the connection recess of the lead plate, and the first double-sided tape, the second double-sided tape, and the sealing label constitute a structure that prevents the potting resin from flowing into the 10 outlet disposed in the projecting electrode.
2. The battery module according to claim 1, wherein each of the plurality of batteries is a cylindrical battery. 15
3. The battery module according to claim 1 or 2, wherein the sealing label has an external shape that covers a series of a plurality of the connection recesses being adjacent to each other and being connected to a plurality of the projecting electrodes. 20
4. The battery module according to any one of claims 1 to 3, wherein the first double-sided tape has a ring shape and has an inside diameter substantially equal to an inside diameter of the electrode window and an outside diameter substantially equal to an outside diameter of each of the plurality of batteries.
5. The battery module according to any one of claims 1 to 4, wherein the second double-sided tape has an external shape substantially identical to an external shape of the lead plate, covers an area including a plurality of the electrode windows opened in the battery holder, and includes through-holes that are opened at places facing the respective electrode windows so as to be similar in outline to the plurality of electrode windows, and 5 the plurality of the connection recesses are disposed in the respective through-holes.
NZ761684A 2018-07-23 Battery module NZ761684B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017144774 2017-07-26
PCT/JP2018/027415 WO2019021980A1 (en) 2017-07-26 2018-07-23 Battery module

Publications (2)

Publication Number Publication Date
NZ761684A true NZ761684A (en) 2026-01-30
NZ761684B2 NZ761684B2 (en) 2026-05-01

Family

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Also Published As

Publication number Publication date
JPWO2019021980A1 (en) 2020-05-28
AU2018307012B2 (en) 2024-02-22
EP3660947B1 (en) 2021-09-01
EP3660947A4 (en) 2020-07-08
JP7160808B2 (en) 2022-10-25
AU2018307012A1 (en) 2020-02-27
US11276906B2 (en) 2022-03-15
US20200220147A1 (en) 2020-07-09
EP3660947A1 (en) 2020-06-03
WO2019021980A1 (en) 2019-01-31

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Legal Events

Date Code Title Description
ASS Change of ownership

Owner name: PANASONIC ENERGY CO., LTD., JP

Effective date: 20240726