SE548103C2 - A covered terminal rivet for a secondary cell and a method of manufacturing a secondary cell - Google Patents

A covered terminal rivet for a secondary cell and a method of manufacturing a secondary cell

Info

Publication number
SE548103C2
SE548103C2 SE2350518A SE2350518A SE548103C2 SE 548103 C2 SE548103 C2 SE 548103C2 SE 2350518 A SE2350518 A SE 2350518A SE 2350518 A SE2350518 A SE 2350518A SE 548103 C2 SE548103 C2 SE 548103C2
Authority
SE
Sweden
Prior art keywords
rivet
terminal
cover
recess
cover part
Prior art date
Application number
SE2350518A
Other languages
English (en)
Other versions
SE2350518A1 (en
Inventor
Kenya Shatani
Original Assignee
Northvolt Ab
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 Northvolt Ab filed Critical Northvolt Ab
Priority to PCT/EP2024/050821 priority Critical patent/WO2024153592A1/en
Publication of SE2350518A1 publication Critical patent/SE2350518A1/en
Publication of SE548103C2 publication Critical patent/SE548103C2/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
    • H01M50/50—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
    • H01M10/04—Construction or manufacture in general
    • 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
    • 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
    • H01M50/172—Arrangements of electric connectors penetrating the 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
    • H01M50/536—Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
    • 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
    • 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
    • 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)

Claims (14)

1. En terminalnit (1) för en sekundärcell (50), varvid terminalniten (1) innefattar
- en nitdel (10) innefattande en svetsfördjupning (12) genom vilken nitdelen (10) kan svetsas och elektriskt anslutas till en intern komponent (55) hos sekundärcellen (50), och
- en lockdel (20) konfigurerad att fästas vid nitdelen (10) för att täcka svetsfördjupningen (12) hos nitdelen (10), varvid
nitdelen (10) innefattar en skaftdel (14) anpassad för att sträcka sig genom en inneslutningsvägg (52) hos sekundärcellen (50) och en huvuddel (16) anpassad för att bilda en extern terminal hos sekundärcellen (50), och
skaftdelen (14) är deformerad för att, efter nitning, bilda ett invändigt nithuvud.
2. Terminalniten (1) enligt krav 1, varvid nitdelen (10) består av skaftdelen (14) och huvuddelen (16).
3. Terminalniten (1) enligt krav 1 eller 2, varvid svetsfördjupningen (12) innefattar en öppen ände som vetter mot lockdelen (20) och en sluten ände som innefattar ett ledarsvetsområde (12w).
4. Terminalniten (1) enligt krav 3, varvid ledarsvetsområdet (12w) är minst 3 millimeter tvärs över.
5. Terminalniten (1) enligt krav 3 eller 4, varvid ledarsvetsområdet (12w) är väsentligen cirkulärt.
6. Terminalniten (1) enligt krav 5, varvid diametern (d) hos ledarsvetsområdet (12w) är minst 3 millimeter.
7. Terminalniten (1) enligt något av kraven 4-6, varvid materialtjockleken (t) hos nitdelen (10) vid ledarsvetsområdet (12w) är vald för att underlätta svetsning därigenom, varvid materialtjockleken (t) företrädesvis är 0,5 till 1,5 millimeter.
8. Terminalniten (1) enligt något av föregående krav, varvid nitdelen (10) och lockdelen (20) tillsammans bildar en terminalyta (2) när lockdelen (20) är fäst vid nitdelen (10), varvid nitdelen (10) och lockdelen (20) är konfigurerade så att terminalytan (2) är väsentligen plan.
9. Terminalniten (1) enligt något av föregående krav, varvid lockdelen (10) innefattar ett locksvetsområde (20w) anordnat radiellt utanför svetsfördjupningen (12).
10. Terminalniten (1) enligt något av föregående krav, varvid lockdelen (20) innefattar en inre lockdel (20i) och en yttre lockdel (20e), varvid den inre lockdelen (20i) skjuter ut axiellt från den yttre lockdelen (20e), och nitdelen (10) innefattar en inre lockfördjupning (ISi) som är anpassad för att motta den inre lockdelen (20i) och en yttre lockfördjupning (18e) som är anpassad för att motta den yttre lockdelen (20e).
11. Terminalniten (1) enligt föregående krav, varvid materialtjockleken hos den yttre lockdelen (20e) är vald för att underlätta svetsning därigenom och materialtjockleken hos den inre lockdelen (20i) överstiger materialtjockleken hos den yttre lockdelen (20e).
12. Terminalniten (1) enligt något av föregående krav, varvid svetsfördjupningen (12) är stympkonisk.
13. Terminalniten (1) enligt något av föregående krav utom krav 8, varvid lockdelen (20) axiellt täcker hela nitdelen (10) och bildar en terminalyta (2) när den är fäst vid nitdelen (10).
14. En sekundärcell (50) innefattande terminalniten (1) enligt något av föregående krav.
SE2350518A 2023-01-16 2022-05-23 A covered terminal rivet for a secondary cell and a method of manufacturing a secondary cell SE548103C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2024/050821 WO2024153592A1 (en) 2023-01-16 2024-01-15 A covered terminal rivet for a secondary cell and a method of manufacturing a secondary cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2350032A SE547606C2 (en) 2023-01-16 2023-01-16 A covered terminal rivet for a secondary cell and a method of manufacturing a secondary cell

Publications (2)

Publication Number Publication Date
SE2350518A1 SE2350518A1 (en) 2024-07-17
SE548103C2 true SE548103C2 (en) 2026-03-23

Family

ID=92214490

Family Applications (2)

Application Number Title Priority Date Filing Date
SE2350518A SE548103C2 (en) 2023-01-16 2022-05-23 A covered terminal rivet for a secondary cell and a method of manufacturing a secondary cell
SE2350032A SE547606C2 (en) 2023-01-16 2023-01-16 A covered terminal rivet for a secondary cell and a method of manufacturing a secondary cell

Family Applications After (1)

Application Number Title Priority Date Filing Date
SE2350032A SE547606C2 (en) 2023-01-16 2023-01-16 A covered terminal rivet for a secondary cell and a method of manufacturing a secondary cell

Country Status (1)

Country Link
SE (2) SE548103C2 (sv)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110244308A1 (en) * 2010-03-30 2011-10-06 Sang-Won Byun Secondary battery and a secondary battery module
CN209183657U (zh) * 2018-12-03 2019-07-30 宁德时代新能源科技股份有限公司 二次电池以及电池模组
CN212783705U (zh) * 2020-09-30 2021-03-23 中航锂电技术研究院有限公司 电池盖板组件、电池及电池模组
CN215578764U (zh) * 2021-08-23 2022-01-18 宁德时代新能源科技股份有限公司 电池单体、电池以及用电装置
WO2023025104A1 (zh) * 2021-08-23 2023-03-02 宁德时代新能源科技股份有限公司 电池单体、电池以及用电装置
EP4164036A1 (en) * 2021-08-23 2023-04-12 Contemporary Amperex Technology Co., Limited Battery cell, fabrication method and fabrication system therefor, battery and electrical device
EP4164022A1 (en) * 2021-08-23 2023-04-12 Contemporary Amperex Technology Co., Limited Battery cell, fabrication method therefor and fabrication system thereof, battery, and electrical device
EP4170781A1 (en) * 2021-08-23 2023-04-26 Contemporary Amperex Technology Co., Limited Battery cell and manufacturing method and manufacturing system therefor, battery, and power consuming device
WO2023155204A1 (zh) * 2022-02-21 2023-08-24 宁德时代新能源科技股份有限公司 电池单体及其制造方法和制造系统、电池以及用电装置

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110244308A1 (en) * 2010-03-30 2011-10-06 Sang-Won Byun Secondary battery and a secondary battery module
CN209183657U (zh) * 2018-12-03 2019-07-30 宁德时代新能源科技股份有限公司 二次电池以及电池模组
CN212783705U (zh) * 2020-09-30 2021-03-23 中航锂电技术研究院有限公司 电池盖板组件、电池及电池模组
CN215578764U (zh) * 2021-08-23 2022-01-18 宁德时代新能源科技股份有限公司 电池单体、电池以及用电装置
WO2023025104A1 (zh) * 2021-08-23 2023-03-02 宁德时代新能源科技股份有限公司 电池单体、电池以及用电装置
EP4164036A1 (en) * 2021-08-23 2023-04-12 Contemporary Amperex Technology Co., Limited Battery cell, fabrication method and fabrication system therefor, battery and electrical device
EP4164022A1 (en) * 2021-08-23 2023-04-12 Contemporary Amperex Technology Co., Limited Battery cell, fabrication method therefor and fabrication system thereof, battery, and electrical device
EP4170781A1 (en) * 2021-08-23 2023-04-26 Contemporary Amperex Technology Co., Limited Battery cell and manufacturing method and manufacturing system therefor, battery, and power consuming device
WO2023155204A1 (zh) * 2022-02-21 2023-08-24 宁德时代新能源科技股份有限公司 电池单体及其制造方法和制造系统、电池以及用电装置

Also Published As

Publication number Publication date
SE2350032A1 (en) 2024-07-17
SE547606C2 (en) 2025-10-28
SE2350518A1 (en) 2024-07-17

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