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WO2019113970A1 - Pile du type bouton et son procédé de fabrication - Google Patents

Pile du type bouton et son procédé de fabrication Download PDF

Info

Publication number
WO2019113970A1
WO2019113970A1 PCT/CN2017/116594 CN2017116594W WO2019113970A1 WO 2019113970 A1 WO2019113970 A1 WO 2019113970A1 CN 2017116594 W CN2017116594 W CN 2017116594W WO 2019113970 A1 WO2019113970 A1 WO 2019113970A1
Authority
WO
WIPO (PCT)
Prior art keywords
top cover
sealing body
insulating sealing
housing
button 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.)
Ceased
Application number
PCT/CN2017/116594
Other languages
English (en)
Chinese (zh)
Inventor
黄凯
韩建国
周超
唐晶莹
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.)
Zhuhai Micromatrix Industry Co Ltd
Original Assignee
Zhuhai Micromatrix Industry 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 Zhuhai Micromatrix Industry Co Ltd filed Critical Zhuhai Micromatrix Industry Co Ltd
Priority to PCT/CN2017/116594 priority Critical patent/WO2019113970A1/fr
Publication of WO2019113970A1 publication Critical patent/WO2019113970A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • 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
    • 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

  • the present invention relates to a battery, and more particularly to a button battery and a method of fabricating the same.
  • Button cells in the known art generally comprise a housing consisting of two electrically conductive housing halves, the lower housing halves being the lower housing and the top cover, respectively.
  • the lower case has a positive polarity
  • the top cover has a negative polarity
  • the positive and negative electrodes are located at both ends of the button battery.
  • the protection board if the protection board needs to be installed, the positive and negative input interfaces of the protection board must be electrically connected to the positive and negative terminals of the button battery, so the negative input interface is led out from the top cover, and the positive input interface is from the positive input interface.
  • the lower case is taken out and wounds up to the top of the top cover along the housing, and the space utilization rate is low.
  • a button battery is provided in the Chinese patent application No. 201710901425.3
  • the casing of the button battery includes an electrically conductive end wall
  • the end wall includes at least one lead-out hole
  • the at least one lead-out hole is provided with an electric conductor
  • the at least one An insulating sealing body for insulating the end wall is provided between the hole wall of the lead-out hole and the electric conductor.
  • the positive and negative poles of the button battery are electrically connected to the end wall and the electric conductor on the end wall, respectively, and thus are on the same side of the button battery.
  • the conductor and the insulating sealing body of the button battery are bulky and inconvenient to assemble.
  • the technical problem to be solved by the present invention is to provide an improved button battery for the above-mentioned drawbacks of the prior art.
  • the technical solution adopted by the present invention to solve the technical problem is to construct a button battery including at least one positive electrode and at least one negative electrode;
  • the housing includes an electrically conductive top cover, and the top cover and the at least one positive electrode Electrically connecting with one of the at least one negative electrode;
  • the top cover includes at least one lead-out hole, and the at least one lead-out hole is provided with an electric conductor, the hole wall of the at least one lead-out hole and the electric conductor
  • An insulating sealing body for insulating from the top cover is disposed therebetween, the electrical conductor is electrically connected to another one of the at least one positive electrode and the at least one negative electrode; the electrical conductor and the insulating seal
  • the body is integrally formed into an assembly.
  • the positive electrode is electrically connected to the top cover, and the negative electrode is electrically connected to the electrical conductor.
  • the button battery further includes a liquid injection hole for injecting an electrolyte into the housing.
  • the liquid injection hole is the same as the extraction hole.
  • the electrical conductor is integrally molded with the insulating sealing body, and the insulating sealing body is sealingly inserted into the lead-out hole, and the electrical conductor is longitudinally disposed in the insulating sealing body. And both ends thereof are respectively exposed from both ends of the insulating sealing body.
  • the electrical conductor is rigid.
  • the electrical conductor is flexible.
  • the housing includes a cylindrical lower case having an opening at the top and a top cover that is flat and covers the opening, the periphery of the top cover being laser welded and the lower The open edges of the shell are sealingly joined together.
  • the button battery further includes a fixing plate disposed above the insulating sealing body for fixing the insulating sealing body in the extraction hole.
  • the electrode separator is in the form of a spiral winding whose center axis coincides with the central axis of the housing.
  • the invention also provides a method for manufacturing a button battery, comprising: a housing and an electrode isolation assembly disposed in the housing, the electrode isolation assembly comprising at least one positive pole and at least one negative pole; the housing comprising a lower shell And a conductive cap corresponding thereto, the cap being electrically connected to one of the at least one positive electrode and the at least one negative electrode; the top cover comprising at least one lead-out hole, the at least one An electric conductor is disposed in the lead-out hole, and an insulating sealing body for insulating with the top cover is disposed between the hole wall of the at least one lead-out hole and the electric conductor, the electric conductor and the at least one positive electrode and the Another electrical connection of the at least one negative electrode; the electrical conductor and the insulating sealing body are integrally formed into a combination; the method comprises the following steps:
  • the method further comprises the step of injecting an electrolyte into the housing through the extraction aperture.
  • the one-piece molding is integrally injection molded.
  • the lower case is a cylindrical lower case having an opening at the top, and the top cover covers the opening in a flat shape, and the periphery of the top cover is laser welded and the lower side The open edges of the shell are sealingly joined together to form a housing.
  • the invention has at least the following beneficial effects: the conductor of the button battery and the insulating sealing body are integrally formed into a combined body, which is small in size and convenient to assemble; and the liquid injection hole can be the same as the lead-out hole, and the liquid is injected through the lead-out hole. After completion, the combination of the conductor and the insulating sealing body can be inserted, and no additional liquid filling hole is required.
  • Figure 1 is a schematic longitudinal sectional view of a coin cell in some embodiments of the present invention.
  • the terms “set”, “install”, “connected”, and “connected” shall be understood broadly, and may be, for example, a fixed connection or a detachable connection, or One-piece connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, which can be the internal connection of the two components.
  • the specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.
  • the button cell shows a button cell in some embodiments of the present invention, the button cell including a sealed housing 1, an electrode isolation assembly 2, an insulative sealing body 3, and an electrical conductor 4.
  • the housing 1 includes a lower case 11 having an opening at the top and an electrically conductive top cover 12 matched thereto, and the top cover 12 is provided with a lead-out hole 123. It is to be understood that the number of the extraction holes 123 is not limited to one, and two or more are also applicable.
  • the electrode isolation assembly 2 is disposed in the housing 1 and includes at least one positive electrode 21 and at least one negative electrode 22 and a separator 23 between the positive electrode 21 and the negative electrode 22.
  • the positive electrode 21 is electrically connected to the top cover 12, and the negative electrode 22 is The electrical conductors 4 are electrically connected.
  • the anode 22 and the cap 12 are electrically connected, and the cathode 21 is electrically connected to the conductor 4 .
  • the insulating sealing body 3 and the electrical conductor 4 are integrally formed into a single assembly.
  • the electric conductor 4 is longitudinally bored in the insulating sealing body 3, and both ends thereof are exposed from both ends of the insulating sealing body 3, respectively.
  • the insulating sealing body 3 is sealingly plugged in the lead-out hole 123 to insulate the conductor 4 from the top cover 12.
  • the housing 1 may in some embodiments be in the form of a flat cylinder comprising a flat bottom region and a flat top region parallel thereto.
  • the housing 1 may, in some embodiments, include a cylindrical lower casing 11 having an opening at the top, the top cover 12 being flat and covering the opening.
  • the lower case 11 and the top cover 12 may each be made of a metal material, and the periphery of the top cover 12 may be sealingly bonded to the open edge of the lower case 11 by laser welding.
  • the top cover 12 may also be provided with a liquid injection hole (not shown) for injecting electrolyte into the housing 1.
  • the button battery may further include a blocking member (not shown) for sealing the liquid filling hole after the filling is completed.
  • the electrode isolation assembly 2 may take the form of a spiral winding or a laminate. In the embodiment shown in FIG. 1, the electrode isolation assembly 2 is in the form of a spiral winding, and wherein the axis coincides with the central axis of the housing 1.
  • the insulating sealing body 3 and the electrical conductor 4 can be formed into an assembly by integral injection molding.
  • the electrical conductors 4 can be made of a rigid electrically conductive material to enhance compression resistance.
  • the electrical conductors 4 can also be made of a flexible electrically conductive material such that when a protective plate is required, the electrical conductors 4 can be directly connected to the protective plates or loads without the need for additional soldering wires.
  • the invention adopts a method in which the insulating sealing body 3 and the electric conductor 4 are integrally formed, which can reduce the volume and facilitate assembly. In this way, the liquid injection hole and the extraction hole 123 can be the same. After the liquid is injected through the extraction hole 123, the combination of the insulating sealing body 3 and the electric conductor 4 can be sealed, and no additional liquid injection is required. hole.
  • the button cell further includes a fixing plate 5 disposed above the insulating sealing body 3 for fixing the insulating sealing body 3 in the extraction hole 123.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Filling, Topping-Up Batteries (AREA)

Abstract

L'invention concerne une pile du type bouton, comprenant un boîtier (1) et un ensemble d'isolation d'électrode (2) disposé dans le boîtier (1), l'ensemble d'isolation d'électrode (2) comprenant au moins une électrode positive (21) et au moins une électrode négative (22) ; le boîtier (1) comprend un couvercle supérieur conducteur (12), et le couvercle supérieur (12) est électroconnecté à l'une de l'au moins une électrode positive (21) et de l'au moins une électrode négative (22) ; le couvercle supérieur (12) comprend au moins un trou de sortie (123), un conducteur (4) est disposé dans l'au moins un trou de sortie (123), un corps d'étanchéité d'isolation (3) pour l'isolation à partir du couvercle supérieur (12) est disposé entre une paroi de trou de l'au moins un trou de sortie (123) et le conducteur (4) est électroconnecté à l'autre de l'au moins une électrodes positive (22) et l'au moins une électrode négative (22) ; et le conducteur (4) et le corps d'étanchéité d'isolation (3) de la pile de type bouton sont formés d'un seul tenant pour former un corps de combinaison de petite taille, son assemblage étant pratique.
PCT/CN2017/116594 2017-12-15 2017-12-15 Pile du type bouton et son procédé de fabrication Ceased WO2019113970A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/116594 WO2019113970A1 (fr) 2017-12-15 2017-12-15 Pile du type bouton et son procédé de fabrication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/116594 WO2019113970A1 (fr) 2017-12-15 2017-12-15 Pile du type bouton et son procédé de fabrication

Publications (1)

Publication Number Publication Date
WO2019113970A1 true WO2019113970A1 (fr) 2019-06-20

Family

ID=66818869

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/116594 Ceased WO2019113970A1 (fr) 2017-12-15 2017-12-15 Pile du type bouton et son procédé de fabrication

Country Status (1)

Country Link
WO (1) WO2019113970A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110970580A (zh) * 2019-11-04 2020-04-07 黄凯 纽扣电池及其制作方法
CN112490544A (zh) * 2020-12-03 2021-03-12 惠州市恒泰科技股份有限公司 电池、第一壳体组件及其制备工艺
CN114712609A (zh) * 2021-01-05 2022-07-08 上海移宇科技股份有限公司 电源嵌入式药物输注装置
US11515595B2 (en) 2020-02-03 2022-11-29 Samsung Sdi Co., Ltd. Button cell

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201732840U (zh) * 2010-04-22 2011-02-02 深圳市艾诺锂电池有限公司 一种新型圆柱形蓄电池
EP2302718A1 (fr) * 2009-08-25 2011-03-30 Samsung SDI Co., Ltd. Batterie secondaire
CN104167518A (zh) * 2014-08-06 2014-11-26 丁家俊 电池外壳、电芯、电池及其装配方法
CN105977408A (zh) * 2016-07-07 2016-09-28 丁振荣 电池外壳、电池电芯、电池及其装配方法
CN106654077A (zh) * 2017-01-23 2017-05-10 珠海微矩实业有限公司 纽扣电池
CN206516715U (zh) * 2017-02-10 2017-09-22 东莞市鹏威能源科技有限公司 一种新型绕组电极的纽扣电池

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2302718A1 (fr) * 2009-08-25 2011-03-30 Samsung SDI Co., Ltd. Batterie secondaire
CN201732840U (zh) * 2010-04-22 2011-02-02 深圳市艾诺锂电池有限公司 一种新型圆柱形蓄电池
CN104167518A (zh) * 2014-08-06 2014-11-26 丁家俊 电池外壳、电芯、电池及其装配方法
CN105977408A (zh) * 2016-07-07 2016-09-28 丁振荣 电池外壳、电池电芯、电池及其装配方法
CN106654077A (zh) * 2017-01-23 2017-05-10 珠海微矩实业有限公司 纽扣电池
CN206516715U (zh) * 2017-02-10 2017-09-22 东莞市鹏威能源科技有限公司 一种新型绕组电极的纽扣电池

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110970580A (zh) * 2019-11-04 2020-04-07 黄凯 纽扣电池及其制作方法
US11515595B2 (en) 2020-02-03 2022-11-29 Samsung Sdi Co., Ltd. Button cell
US12148937B2 (en) 2020-02-03 2024-11-19 Samsung Sdi Co., Ltd. Rechargeable battery
US12176550B2 (en) 2020-02-03 2024-12-24 Samsung Sdi Co., Ltd. Rechargeable battery
CN112490544A (zh) * 2020-12-03 2021-03-12 惠州市恒泰科技股份有限公司 电池、第一壳体组件及其制备工艺
CN114712609A (zh) * 2021-01-05 2022-07-08 上海移宇科技股份有限公司 电源嵌入式药物输注装置

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