WO2024143253A1 - 円筒形電池 - Google Patents

円筒形電池 Download PDF

Info

Publication number
WO2024143253A1
WO2024143253A1 PCT/JP2023/046338 JP2023046338W WO2024143253A1 WO 2024143253 A1 WO2024143253 A1 WO 2024143253A1 JP 2023046338 W JP2023046338 W JP 2023046338W WO 2024143253 A1 WO2024143253 A1 WO 2024143253A1
Authority
WO
WIPO (PCT)
Prior art keywords
sealing body
external terminal
insulating member
protrusion
opening
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.)
Ceased
Application number
PCT/JP2023/046338
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
翔 斎藤
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.)
Panasonic Energy Co Ltd
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
Priority to CN202380084959.5A priority Critical patent/CN120322910A/zh
Priority to JP2024567784A priority patent/JPWO2024143253A1/ja
Publication of WO2024143253A1 publication Critical patent/WO2024143253A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • H01M50/148—Lids or covers characterised by their shape
    • H01M50/152—Lids or covers characterised by their shape 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/184—Sealing members characterised by their shape or structure
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/186—Sealing members characterised by the disposition of the sealing members
    • H01M50/188—Sealing members characterised by the disposition of the sealing members the sealing members being arranged between the lid and terminal
    • 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
    • H01M50/545—Terminals formed by the casing of the 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
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side 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
    • H01M50/559—Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button 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
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/588—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries outside the batteries, e.g. incorrect connections of terminals or busbars
    • 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
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
    • H01M50/593—Spacers; Insulating plates
    • 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

Definitions

  • This disclosure relates to cylindrical batteries.
  • Cylindrical batteries generally comprise a wound electrode body, a cylindrical outer can with a bottom that houses the electrode body, and a sealing body that closes the opening of the outer can.
  • Cylindrical batteries are characterized by being shock resistant and easy to modularize, and in applications requiring large capacity, multiple cylindrical batteries are electrically connected to form a module. At this time, a current collecting member that connects the multiple cylindrical batteries to each other is joined to the external terminals of the cylindrical battery.
  • the sealing body serves as the external terminal of the first electrode and the outer can serves as the external terminal of the second electrode, as in the cylindrical battery of Patent Document 1, it is necessary to prevent a short circuit due to contact between the sealing body and the outer can.
  • a gasket is placed to seal the gap between the sealing body and the outer can, and the gasket also functions as an insulating member to prevent electrical contact between the sealing body and the outer can.
  • the gasket will melt. If the gasket melts, the sealing body will fall into the battery and come into contact with the outer can, raising concerns that a short circuit will occur.
  • the cylindrical battery according to the present disclosure is a cylindrical battery comprising an electrode assembly including a first electrode and a second electrode, a cylindrical outer can with a bottom that houses the electrode assembly, and a sealing body that closes the opening of the outer can, with the first electrode connected to the outer can and the second electrode connected to the sealing body, and further comprising a gasket interposed between the outer can and the sealing body, an external terminal joined to the outer surface of the outer can, and an insulating member interposed between the sealing body and the external terminal, and the sealing body is fixed to the external terminal via the insulating member.
  • the sealing body is fixed to the external terminal via an insulating member, so even if the gasket melts due to abnormal heat generation from the battery, the occurrence of a short circuit due to contact between the outer can and the sealing body is suppressed. In other words, the sealing body is held by the external terminal, preventing it from falling.
  • cylindrical battery according to the present disclosure is not limited to the embodiment described below.
  • the liquid electrolyte includes a non-aqueous solvent and an electrolyte salt dissolved in the non-aqueous solvent.
  • a non-aqueous solvent for example, esters, ethers, nitriles, amides, and mixed solvents of two or more of these are used as the non-aqueous solvent.
  • the non-aqueous solvent include ethylene carbonate (EC), ethyl methyl carbonate (EMC), dimethyl carbonate (DMC), diethyl carbonate (DEC), and mixed solvents of these.
  • Figure 2 is an enlarged view of part A in Figure 1
  • Figure 3 is a perspective view of the insulating member 40.
  • the bottom surface of the sealing body 17, the external terminal 30, and the insulating member 40 refers to the surface facing the electrode body 14, and the top surface refers to the surface facing the outside of the battery opposite the bottom surface.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Connection Of Batteries Or Terminals (AREA)
PCT/JP2023/046338 2022-12-26 2023-12-25 円筒形電池 Ceased WO2024143253A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202380084959.5A CN120322910A (zh) 2022-12-26 2023-12-25 圆筒形电池
JP2024567784A JPWO2024143253A1 (https=) 2022-12-26 2023-12-25

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-207820 2022-12-26
JP2022207820 2022-12-26

Publications (1)

Publication Number Publication Date
WO2024143253A1 true WO2024143253A1 (ja) 2024-07-04

Family

ID=91717981

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2023/046338 Ceased WO2024143253A1 (ja) 2022-12-26 2023-12-25 円筒形電池

Country Status (3)

Country Link
JP (1) JPWO2024143253A1 (https=)
CN (1) CN120322910A (https=)
WO (1) WO2024143253A1 (https=)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014097586A1 (ja) * 2012-12-19 2014-06-26 三洋電機株式会社 円筒形二次電池及びその製造方法
WO2020137547A1 (ja) * 2018-12-28 2020-07-02 三洋電機株式会社 ガスケット、及び円筒形電池
KR20220095139A (ko) * 2020-12-29 2022-07-06 주식회사 엘지에너지솔루션 원통형 배터리 셀, 그리고 이를 포함하는 배터리 팩 및 자동차
WO2022182143A1 (ko) * 2021-02-23 2022-09-01 주식회사 엘지에너지솔루션 이차전지, 이차전지 제조방법, 배터리 팩 및 자동차

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014097586A1 (ja) * 2012-12-19 2014-06-26 三洋電機株式会社 円筒形二次電池及びその製造方法
WO2020137547A1 (ja) * 2018-12-28 2020-07-02 三洋電機株式会社 ガスケット、及び円筒形電池
KR20220095139A (ko) * 2020-12-29 2022-07-06 주식회사 엘지에너지솔루션 원통형 배터리 셀, 그리고 이를 포함하는 배터리 팩 및 자동차
WO2022182143A1 (ko) * 2021-02-23 2022-09-01 주식회사 엘지에너지솔루션 이차전지, 이차전지 제조방법, 배터리 팩 및 자동차

Also Published As

Publication number Publication date
JPWO2024143253A1 (https=) 2024-07-04
CN120322910A (zh) 2025-07-15

Similar Documents

Publication Publication Date Title
JP7576747B2 (ja) 電池
CN104488113B (zh) 包括电流中断装置的二次电池
US12230843B2 (en) Secondary battery with pressing projection
US10128477B2 (en) Cap assembly and secondary battery including the same
US20150303443A1 (en) Prismatic secondary battery
US20130196187A1 (en) Prismatic secondary battery
US11367933B2 (en) Secondary battery
EP4459785B1 (en) Power storage device
KR20110056117A (ko) 원통형 이차 전지
JPWO2016009586A1 (ja) 蓄電デバイス
WO2024143319A1 (ja) 蓄電装置および蓄電モジュール
JP7655859B2 (ja) 密閉電池
US20230299397A1 (en) Secondary battery and method for manufacturing the same
KR101484099B1 (ko) 이차전지
US11404754B2 (en) Secondary battery
WO2018062339A1 (ja) 角形二次電池の製造方法
WO2024143253A1 (ja) 円筒形電池
EP4679615A1 (en) Cylindrical battery
WO2025143013A1 (ja) 円筒形電池
WO2025094566A1 (ja) 円筒形二次電池
WO2025028548A1 (ja) 蓄電装置
WO2024161920A1 (ja) 円筒形電池
WO2025047154A1 (ja) 円筒形電池
WO2024135555A1 (ja) 円筒形電池
KR20120063967A (ko) 이차전지

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23912033

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2024567784

Country of ref document: JP

WWE Wipo information: entry into national phase

Ref document number: 202380084959.5

Country of ref document: CN

WWP Wipo information: published in national office

Ref document number: 202380084959.5

Country of ref document: CN

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 23912033

Country of ref document: EP

Kind code of ref document: A1