CN113937395A - Button cell - Google Patents

Button cell Download PDF

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Publication number
CN113937395A
CN113937395A CN202111159020.XA CN202111159020A CN113937395A CN 113937395 A CN113937395 A CN 113937395A CN 202111159020 A CN202111159020 A CN 202111159020A CN 113937395 A CN113937395 A CN 113937395A
Authority
CN
China
Prior art keywords
battery
shell
cover
pad
end portion
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.)
Pending
Application number
CN202111159020.XA
Other languages
Chinese (zh)
Inventor
戈志敏
肖海燕
顾勇平
明应时
刘晓伟
黄利平
刘祥郡
董水金
李阳
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.)
Xinyu Ganfeng Electronics Co Ltd
Original Assignee
Xinyu Ganfeng Electronics 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 Xinyu Ganfeng Electronics Co Ltd filed Critical Xinyu Ganfeng Electronics Co Ltd
Priority to CN202111159020.XA priority Critical patent/CN113937395A/en
Publication of CN113937395A publication Critical patent/CN113937395A/en
Pending legal-status Critical Current

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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
    • 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
    • H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
    • H01M50/169—Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
    • 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
    • H01M50/153—Lids or covers characterised by their shape for button or coin 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
    • H01M50/531—Electrode connections inside a battery casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
    • 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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The invention relates to the technical field of batteries, in particular to a button battery, which comprises a battery face cover, a battery core and a shell, wherein the battery face cover is a pre-pressing welding type battery face cover, the battery face cover comprises connecting piece assemblies, the battery core is arranged between the connecting piece assemblies, the shell is a shell with an opening at one end, the connecting piece assemblies and the battery core are positioned in the shell, the battery face cover is arranged at the opening of the shell, and battery liquid is contained between the battery core and the shell. The connecting piece assembly is fixed between the fixing part and the shell cover by prepressing, and then the fixing part and the shell cover are welded for secondary fixing, so that the safety of the battery is improved, and the leakage risk is reduced.

Description

Button cell
Technical Field
The invention relates to the technical field of batteries, in particular to a button cell.
Background
With the continuous development of wireless technology, the original cable transmission mode is gradually replaced by wireless earphones. The wireless headset communicates with the terminal through a wireless communication protocol (such as bluetooth), and has the characteristics of wireless connection and convenient use compared with a wired headset. The recent true wireless interconnection stereo bluetooth headset is a typical wireless headset.
The existing earphone batteries are not high in sealing performance.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the button cell, the connecting piece assembly is fixed between the fixing part and the shell cover in a pre-pressing mode, and then the fixing part and the shell cover are welded for secondary fixing, so that the safety of the cell is improved, and the leakage risk is reduced.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a button cell, comprising:
the battery face cover is a pre-pressing welding type battery face cover, and comprises a connecting piece assembly;
the battery cell is arranged between the connecting piece assemblies;
the battery comprises a shell, wherein the shell is provided with an opening at one end, the connecting piece assembly and the battery cell are positioned in the shell, the battery face cover is arranged at the opening of the shell, and battery liquid is contained between the battery cell and the shell.
As a further improvement of the above technical solution, the battery face cover includes:
the connector assembly comprising a first end and a second end;
a fixing member provided on one side of the second end portion;
the casing cover is arranged on one side, close to the second end portion, of the fixing component, a pad passing hole and a liquid injection hole are formed in the casing cover, the pad component is located in the pad passing hole, and the casing cover is fixedly arranged at the opening end of the casing body.
The sealing component is arranged on the liquid injection hole and used for sealing the liquid injection hole;
the battery cell is located between the first end portion and the second end portion, the first end portion is connected with a lug at the lower end of the battery cell, and the welding disc component is arranged on one side, far away from the battery cell, of the second end portion.
As a further improvement of the above technical solution, the second end is pre-pressed between the fixing member and the housing cover, and the fixing member is fixedly connected to the housing cover.
As a further improvement of the above technical solution, the connection mode of the fixing component and the tab at the upper end of the electric core and the connection mode of the first end and the tab at the lower end of the electric core are both fixed connection.
As a further improvement of the above technical solution, the upper and lower ends of the battery cell are both provided with an insulating member.
As a further improvement of the above technical solution, the pad member is fixed to the connector assembly.
As a further improvement of the above technical solution, the pad part is an anode pad or a cathode pad.
As a further improvement of the technical scheme, the connector assembly is an electric conductor with insulation on the outer surface.
As a further improvement of the above technical solution, the connector assembly is stacked by using electric conductor coils in parallel with the end surface of the cell or the diameter direction of the cell.
As a further improvement of the above technical solution, the connector assembly does not include the second end, and the cell cathode is connected to an extended position of the first end.
The invention has the beneficial effects that: 1. the battery uses a battery face cover and a shell seamless welding machine which are pre-pressed and fully fixed, and the leakage of the battery is completely avoided.
2. The connecting piece assembly is fixed between the fixing part and the shell cover by prepressing, and then the fixing part and the shell cover are welded for secondary fixation, so that the safety of the battery face cover is improved, the liquid leakage risk is reduced, and the fixing performance of the whole battery is improved.
Drawings
Fig. 1 is a schematic structural diagram of a button cell of the invention.
Fig. 2 is an exploded view of the button cell of the present invention.
Wherein the figures include the following reference numerals: 1. the battery comprises a shell, 201, a battery core, 202, an insulating component, 303, a connecting piece assembly (comprising 301, a first end part, 302 and a second end part), 304, a welding disc component, 4, a fixing component, 5, a shell cover, 501, a welding disc through hole, 502, a liquid injection hole, 6 and a sealing component.
Detailed Description
The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for completeness and fully convey the scope of the invention to the skilled person.
As shown in fig. 1-2, a button cell includes a cell cover, a cell 201 and a casing 1, the cell cover is a pre-pressed welded cell cover, the cell cover includes a connector assembly 303, the cell 201 is disposed between the connector assemblies 303, the casing 1 is a casing 1 with an opening at one end, the connector assembly 303 and the cell 201 are located in the casing 1, the cell cover is disposed at the opening of the casing 1, and a cell liquid is contained between the cell 201 and the casing 1.
Further, the battery face cover comprises a connecting piece assembly 303, a fixing part 4, a cover 5, a closing part 6 and a pad part 304, the connecting piece assembly 303 comprises a first end part 301 and a second end part 302, the connecting piece assembly 303 is connected between the first end part 301 and the second end part 302, the fixing part 4 is arranged on one side of the second end part 302, the cover 5 is arranged on one side of the fixing part 4 close to the second end part 302, the cover 5 is provided with a pad through hole 501 and a liquid injection hole 502, the pad part 304 is positioned in the pad through hole 501, and the cover 5 is fixedly covered at the opening end of the shell 1. The liquid injection hole 502 is provided with a closing member 6, the closing member 6 is used for closing the liquid injection hole 502, the battery cell 201 is located between the first end portion 301 and the second end portion 302, the first end portion 301 is connected with a tab at the lower end of the battery cell 201, and the pad member 304 is arranged on the side of the second end portion 302 away from the battery cell 201.
In one embodiment, the cover 5 is fixedly covered at the open end of the housing 1, wherein the fixed connection mode can be welding, riveting, bonding and the like, wherein the welding can be fusion welding, pressure welding, brazing and the like, in particular, the connection mode of the cover 5 and the housing 1 is preferably welding, wherein the welding enables the fixing performance of the housing 1 and the cover 5 to be good and the welding precision in the precision welding of micro and small parts to be high, and further the fixing performance of the battery is improved.
Further, the second end portion 302 is pre-pressed between the fixing member 4 and the case cover 5, and the fixing member 4 and the case cover 5 are fixedly connected.
In one embodiment, the fixing means of the fixing member 4 and the case cover 5 may be welding, riveting, bonding, or the like, wherein the welding may be fusion welding, pressure welding, brazing, or the like, and particularly, the fixing means of the fixing member 4 and the case cover 5 is preferably welding, wherein the welding enables good fixing of the fixing member 4 and the case cover 5 and high welding precision in precision welding for micro and small parts, thereby further improving the fixing of the battery.
Further, the fixing member 4 is fixedly connected to the upper end tab of the battery cell 201, and the first end portion 301 is fixedly connected to the lower end tab of the battery cell 201.
In one embodiment, the connection manner of the fixing component 4 and the upper end tab of the battery cell 201 and the fixed connection manner of the first end portion 301 and the lower end tab of the battery cell 201 may be welding, bonding, and the like, wherein the welding may be fusion welding, pressure welding, brazing, and the like, specifically, the connection manner of the fixing component 4 and the upper end tab of the battery cell 201 and the connection manner of the first end portion 301 and the lower end tab of the battery cell 201 are preferably welding, and the welding has high welding precision in precision welding of micro and small parts, and is suitable for precision welding of micro and small parts, so that the welding efficiency is improved.
Further, the upper and lower ends of the battery cell 201 are provided with insulating members 202.
The embodiment discloses that the insulating members 202 are two insulating members 202 formed by mounting the attaching members, but the embodiment is not limited thereto, and the insulating members 202 may be formed by coating insulating glue according to actual mounting requirements.
Further, a pad member 304 is fixed to the connector member 303.
In one embodiment, the pad component 304 may be connected to the connector component 303 by thermocompression bonding or other fixing connection method, specifically, the other fixing connection method may be a smt component type or welding, and specifically, the welding may be manual welding.
In one embodiment, break is present in the internal wiring of the connector assembly 303, which can improve battery safety.
In one embodiment, the battery adopts the pre-press welded battery cover of the present application, wherein the connecting member assembly 303 can be stacked in a manner of using a conductive coil parallel to the end surface or diameter direction of the battery cell 201, and the winding direction of the pole piece is kept consistent, so as to effectively balance the magnetic field of the winding body, minimize the magnetic field generated by the battery, eliminate the interference of the magnetic field to the host, avoid the generation of radiation and noise, and optimally stack the sheet-shaped FPC coil, thereby minimizing the space occupancy rate.
Further, the pad part 304 is a cathode or anode pad part 304.
The above examples are merely representative of preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, various changes, modifications and substitutions can be made without departing from the spirit of the present invention, and these are all within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A button cell battery, comprising:
the battery face cover is a pre-pressing welding type battery face cover, and comprises a connecting piece assembly (303);
electrical cells (201), the electrical cells (201) disposed between the connector assemblies (303);
the battery shell comprises a shell (1), wherein the shell (1) is a shell (1) with one end open, a connecting piece assembly (303) and a battery cell (201) are located in the shell (1), a battery surface cover is arranged at the opening of the shell (1), and battery liquid is contained between the battery cell (201) and the shell (1).
2. The button cell according to claim 1, wherein the cell face cover comprises:
the connector assembly (303), the connector assembly (303) comprising a first end (301) and a second end (302);
a fixing member (4), the fixing member (4) being provided on one side of the second end portion (302);
the casing cover (5), fixed part (4) are close to be provided with on one side of second tip (302) casing cover (5), seted up pad through hole (501) and notes liquid hole (502) on casing cover (5), pad part (304) are located pad through hole (501), fixed the lid of casing cover (5) is established casing (1) open end department.
A closing member (6), wherein the closing member (6) is provided on the liquid injection hole (502), and the closing member (6) is used for closing the liquid injection hole (502);
the battery cell (201) is located between the first end portion (301) and the second end portion (302), the first end portion (301) is connected with a lug at the lower end of the battery cell (201), and the pad component (304) is arranged on one side of the second end portion (302) far away from the battery cell (201).
3. A button cell according to claim 2, characterized in that:
the second end portion (302) is pre-pressed between the fixing part (4) and the shell cover (5), and the fixing part (4) is fixedly connected with the shell cover (5).
4. A button cell according to claim 2, characterized in that:
the fixing component (4) is fixedly connected with the upper end lug of the battery cell (201) and the first end part (301) is fixedly connected with the lower end lug of the battery cell (201).
5. A button cell according to claim 1, characterized in that:
and the upper end and the lower end of the battery cell (201) are both provided with insulating parts (202).
6. A button cell according to claim 2, characterized in that:
the pad member (304) is secured to the connector assembly (303).
7. A button cell according to claim 2, characterized in that:
the pad component (304) is an anode pad or a cathode pad.
8. A button cell according to claim 1, characterized in that:
the connector assembly (303) is an electric conductor with insulation on the outer surface.
9. A button cell according to claim 2, characterized in that:
the connector assembly (303) is stacked by means of electric conductor coils and is parallel to the end surface of the battery cell (201) or the diameter direction of the battery cell (201).
10. A button cell according to claim 9, characterized in that:
the connector assembly (303) does not comprise the second end portion (302), and a cell cathode is connected with the extended position of the first end portion (301).
CN202111159020.XA 2021-09-30 2021-09-30 Button cell Pending CN113937395A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111159020.XA CN113937395A (en) 2021-09-30 2021-09-30 Button cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111159020.XA CN113937395A (en) 2021-09-30 2021-09-30 Button cell

Publications (1)

Publication Number Publication Date
CN113937395A true CN113937395A (en) 2022-01-14

Family

ID=79277527

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111159020.XA Pending CN113937395A (en) 2021-09-30 2021-09-30 Button cell

Country Status (1)

Country Link
CN (1) CN113937395A (en)

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005216668A (en) * 2004-01-29 2005-08-11 Sii Micro Parts Ltd Electrochemical cell
WO2010112332A1 (en) * 2009-04-04 2010-10-07 Varta Microbattery Gmbh Button cell without flanging
JP2012109250A (en) * 2011-12-19 2012-06-07 Seiko Instruments Inc Electrochemical cell and manufacturing method thereof
CN206639838U (en) * 2017-04-01 2017-11-14 深圳市秸川材料科技有限公司 Button cell with afflux ring support
CN111430588A (en) * 2020-03-03 2020-07-17 珠海冠宇电池股份有限公司 Shell assembly of button cell, button cell and electronic product
CN111564577A (en) * 2020-05-12 2020-08-21 路华置富电子(深圳)有限公司 Battery structure with cap support
CN111584771A (en) * 2020-05-12 2020-08-25 路华置富电子(深圳)有限公司 Battery with safety valve cap
CN111613739A (en) * 2020-06-03 2020-09-01 珠海冠宇电池股份有限公司 Button cell, manufacturing method thereof and electronic equipment
CN112366396A (en) * 2020-10-13 2021-02-12 新余赣锋电子有限公司 Button cell
CN112864444A (en) * 2021-03-11 2021-05-28 新余赣锋电子有限公司 Button cell structure
CN113193273A (en) * 2021-03-15 2021-07-30 广东微电新能源有限公司 Manufacturing method of button cell
US20210265651A1 (en) * 2020-02-25 2021-08-26 Betterpower Battery Co., Ltd. Button Lithium Ion Battery, Preparation Method Thereof and Preparation Method of Lithium Ion Cell Composite Flat Sheet
CN113383456A (en) * 2020-11-26 2021-09-10 宁德新能源科技有限公司 Electrochemical device and electronic apparatus
CN113394442A (en) * 2021-06-28 2021-09-14 新余赣锋电子有限公司 Button cell structure
CN216213749U (en) * 2021-09-30 2022-04-05 新余赣锋电子有限公司 Button cell

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005216668A (en) * 2004-01-29 2005-08-11 Sii Micro Parts Ltd Electrochemical cell
WO2010112332A1 (en) * 2009-04-04 2010-10-07 Varta Microbattery Gmbh Button cell without flanging
JP2012109250A (en) * 2011-12-19 2012-06-07 Seiko Instruments Inc Electrochemical cell and manufacturing method thereof
CN206639838U (en) * 2017-04-01 2017-11-14 深圳市秸川材料科技有限公司 Button cell with afflux ring support
US20210265651A1 (en) * 2020-02-25 2021-08-26 Betterpower Battery Co., Ltd. Button Lithium Ion Battery, Preparation Method Thereof and Preparation Method of Lithium Ion Cell Composite Flat Sheet
CN111430588A (en) * 2020-03-03 2020-07-17 珠海冠宇电池股份有限公司 Shell assembly of button cell, button cell and electronic product
CN111584771A (en) * 2020-05-12 2020-08-25 路华置富电子(深圳)有限公司 Battery with safety valve cap
CN111564577A (en) * 2020-05-12 2020-08-21 路华置富电子(深圳)有限公司 Battery structure with cap support
CN111613739A (en) * 2020-06-03 2020-09-01 珠海冠宇电池股份有限公司 Button cell, manufacturing method thereof and electronic equipment
CN112366396A (en) * 2020-10-13 2021-02-12 新余赣锋电子有限公司 Button cell
CN113383456A (en) * 2020-11-26 2021-09-10 宁德新能源科技有限公司 Electrochemical device and electronic apparatus
CN112864444A (en) * 2021-03-11 2021-05-28 新余赣锋电子有限公司 Button cell structure
CN113193273A (en) * 2021-03-15 2021-07-30 广东微电新能源有限公司 Manufacturing method of button cell
CN113394442A (en) * 2021-06-28 2021-09-14 新余赣锋电子有限公司 Button cell structure
CN216213749U (en) * 2021-09-30 2022-04-05 新余赣锋电子有限公司 Button cell

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