CN210245625U - Button cell packaging structure - Google Patents
Button cell packaging structure Download PDFInfo
- Publication number
- CN210245625U CN210245625U CN201920789196.5U CN201920789196U CN210245625U CN 210245625 U CN210245625 U CN 210245625U CN 201920789196 U CN201920789196 U CN 201920789196U CN 210245625 U CN210245625 U CN 210245625U
- Authority
- CN
- China
- Prior art keywords
- battery
- cell
- top cover
- battery core
- accommodating cavity
- 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.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
Abstract
A button cell package structure comprising: the battery comprises a battery bottom shell, a battery top cover, a sealing assembly and a battery core assembly, wherein a battery cell accommodating cavity is arranged in the battery bottom shell, a pit convex ring is arranged on the inner wall of the battery cell accommodating cavity close to a port, and the pit convex ring divides the battery cell accommodating cavity into a battery cell placing area and a packaging area; the battery top cover is arranged in the packaging area, the sealing assembly comprises an insulating sealing ring, the insulating sealing ring is arranged in the packaging area, and the insulating sealing ring is positioned between the battery top cover and the battery cell accommodating cavity; the battery core component comprises a battery core and electrolyte, the battery core and the electrolyte are respectively arranged in the battery core placing area, and the battery core is respectively electrically connected with the battery bottom shell and the battery top cover. The utility model discloses a button cell packaging structure is through setting up battery drain pan, battery top cap, seal assembly and battery core subassembly to adopt the top cap design of bimetallic strip to replace traditional button cell's upper and lower integrated configuration, so, can improve button cell internal capacity, and holistic structural strength obtains improving.
Description
Technical Field
The utility model relates to a battery manufacturing technology field especially relates to a button cell packaging structure.
Background
The button-type battery is a cavity structure formed by combining a metal bottom shell and a metal top shell. The bottom shell is typically connected to the positive electrode and the top shell is typically connected to the negative electrode. The bottom and top shells are separated by a rubber gasket (usually polypropylene) which serves both sealing and insulating functions. When sealing, the edge of the bottom shell is pressed by mechanical force and is inverted inwards to be included with the top shell, thereby forming a closed shell.
Usually, the inside of the casing of the button cell is a cell in a sandwich structure composed of a single-layer positive plate, a single-layer separator paper and a single-layer negative plate, and the cell is horizontally arranged parallel to the upper and lower bottom surfaces of the casing. Traditionally, button type battery shell adopts the mode of battery cup and battery topshell to carry out the aggregate erection, places at the inside back of battery cup when electric core, and the battery topshell that will have cavity structures inserts to the battery cup inside for electric core is located the cavity of battery topshell, and packs rubber ring or insulating meson between battery cup and battery topshell and carries out insulating operation, then adopts the battery cup to bordure the encapsulation operation of processing completion battery cup and battery topshell.
Obviously, traditional button cell not only packaging technology is comparatively complicated, and the battery topshell is located that battery cup inside needs occupy certain space moreover, and the rubber ring or the insulating meson of filling also can occupy battery cup inner space to the button cell capacity that leads to making out is high, and simultaneously, traditional button cell structural strength is not high, and is being enclosed the axial mechanical force by the band at the sealed in-process of borduring, and mechanical action can cause the deformation of spiral electricity meat, thereby leads to the production of battery bad.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the weak point among the prior art, provide one kind and can improve button cell internal capacity, and the higher button cell packaging structure of structural strength.
The purpose of the utility model is realized through the following technical scheme:
a button cell package structure comprising:
the battery bottom shell is internally provided with a battery cell accommodating cavity, the inner wall of the battery cell accommodating cavity close to the port is provided with a pit convex ring, and the pit convex ring divides the battery cell accommodating cavity into a battery cell placing area and a packaging area;
the battery top cover is arranged in the packaging area, and the edge of the opening end of the battery bottom shell is connected with the battery top cover in a pressing mode;
the sealing assembly comprises an insulating sealing ring, the insulating sealing ring is arranged in the packaging area, and the insulating sealing ring is positioned between the battery top cover and the battery core accommodating cavity; and
the battery core assembly comprises a battery core and electrolyte, the battery core and the electrolyte are respectively arranged in the battery core placing area, and the battery core is respectively electrically connected with the battery bottom shell and the battery top cover.
In one embodiment, the battery top cover comprises a bi-metal strip structure.
In one embodiment, the battery top cover includes a nickel metal sheet and an aluminum metal sheet, the nickel metal sheet and the aluminum metal sheet are stacked up and down, the aluminum metal sheet is connected to the battery core, and the nickel metal sheet is located at the opening of the battery bottom case.
In one embodiment, the surface of the aluminum sheet metal is provided with a corrosion protection layer.
In one embodiment, the corrosion protection layer is an aluminum oxide thin film layer.
In one embodiment, the battery top cover is a boss structure.
In one embodiment, the insulating sealing ring is a sealing rubber ring.
In one embodiment, the battery core assembly further comprises a positive electrode tab, one end of the positive electrode tab is connected with the battery core, and the other end of the positive electrode tab is connected with the battery top cover.
In one embodiment, the battery core assembly further includes a negative electrode tab, one end of the negative electrode tab is connected to the battery core, and the other end of the negative electrode tab is connected to the battery bottom case.
In one embodiment, the battery bottom case is a metal bottom case.
Compared with the prior art, the utility model discloses at least, following advantage has:
the utility model discloses a button cell packaging structure is through setting up battery drain pan, battery top cap, seal assembly and battery core subassembly to adopt the top cap design of bimetallic strip to replace traditional button cell's upper and lower integrated configuration, so, can improve button cell internal capacity, and holistic structural strength obtains improving.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of a button cell package structure according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a battery top cover of the button battery packaging structure in fig. 1.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The 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 so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
It is noted that as used herein, reference to an element being "connected" to another element also means that the element is "in communication" with the other element, and fluid can be in exchange communication between the two.
In one embodiment, a button cell package structure includes: the battery comprises a battery bottom shell, a battery top cover, a sealing assembly and a battery core assembly, wherein a battery cell accommodating cavity is arranged in the battery bottom shell, a pit convex ring is arranged on the inner wall of the battery cell accommodating cavity close to a port, and the pit convex ring divides the battery cell accommodating cavity into a battery cell placing area and a packaging area; the battery top cover is arranged in the packaging area, and the edge of the opening end of the battery bottom shell is connected with the battery top cover in a pressing mode; the sealing assembly comprises an insulating sealing ring, the insulating sealing ring is arranged in the packaging area, and the insulating sealing ring is positioned between the battery top cover and the battery cell accommodating cavity; the battery core assembly comprises a battery core and electrolyte, the battery core and the electrolyte are respectively arranged in the battery core placing area, and the battery core is respectively electrically connected with the battery bottom shell and the battery top cover. The utility model discloses a button cell packaging structure is through setting up battery drain pan, battery top cap, seal assembly and battery core subassembly to adopt the top cap design of bimetallic strip to replace traditional button cell's upper and lower integrated configuration, so, can improve button cell internal capacity, and holistic structural strength obtains improving.
The button cell packaging structure is better explained to better understand the concept of the button cell packaging structure. Referring to fig. 1, a button cell package structure 10 includes: battery drain pan 100, battery top cap 200, seal assembly 300 and electric core subassembly 400, be provided with electric core in the battery drain pan 100 and hold chamber 110, electric core holds and is provided with pit bulge loop 120 on the inner wall that chamber 110 is close to the port, and pit bulge loop 120 holds the chamber with electric core and separates into electric core and place district 111 and encapsulation district 112. In this embodiment, the battery bottom case is a metal bottom case.
It should be noted that, the outer side wall of the battery bottom case 100 is processed by a pit machining process, so that a pit protruding ring 120 is formed on the inner wall of the battery cell accommodating cavity 110, and thus, by providing the pit protruding ring 120, thereby improving the structural strength of the battery bottom case 100, enabling the battery bottom case 100 and the battery top cover 200 to have sufficient anti-pressure strength when performing edge sealing operation, thereby preventing the deformation of the cell assembly 400 inside the cell accommodating chamber 110 due to the external mechanical force, and at the same time, by providing the pit protruding ring 120, thereby, the battery top cover 200 can be supported and fixed, so that the battery top cover 200 can be designed into a cover body structure with a thinner thickness, thus, the traditional battery top shell structure can be replaced, so that the battery top cover 200 is not inserted into the battery core placing area 111, therefore, the internal space of the battery cell accommodating cavity can be increased, and the overall capacity of the button battery is increased.
Referring to fig. 1 again, the battery top cover 200 is disposed in the package region 112, and the edge of the opening of the battery bottom case 100 is press-fit connected to the battery top cover 200.
Further, the sealing assembly 300 includes an insulating sealing ring 310, the insulating sealing ring 310 is disposed in the encapsulation area 112, and the insulating sealing ring 310 is located between the battery top cover 200 and the cell accommodating cavity 110. In this embodiment, the insulating seal ring is a sealing rubber ring.
It should be noted that, the battery top cover 200 is installed and placed on the encapsulation area 112, and through the arrangement of the insulating seal ring 310, the battery top cover 200 and the battery bottom case 100 can be isolated in an insulating manner, and meanwhile, the insulating seal ring 310 only needs to be arranged in the encapsulation area 112, so that the space utilization rate of the cell placement area 111 can be improved, and the overall capacity of the button battery can be improved. After the installation and placement of the battery top cover 200 are completed, the edge of the opening end of the battery bottom case 100 is pressed onto the battery top cover 200 by performing the pressing process on the edge of the opening end of the battery bottom case 100, thereby completing the packaging process operation.
Referring to fig. 1 again, the battery cell assembly 400 includes a battery cell 410 and an electrolyte, the battery cell 410 and the electrolyte are respectively disposed in the cell placement area 111, and the battery cell 410 is electrically connected to the battery bottom case 100 and the battery top cover 200 respectively. In this embodiment, the electric core assembly further includes a positive electrode tab, one end of the positive electrode tab is connected to the electric core, the other end of the positive electrode tab is connected to the battery top cover, the electric core assembly further includes a negative electrode tab, one end of the negative electrode tab is connected to the electric core, the other end of the negative electrode tab is connected to the battery bottom case, so that the electric core 410 is respectively electrically connected to the battery bottom case 100 and the battery top cover 200, and thus the button cell can realize power supply operation.
Referring to fig. 2, in an embodiment, the battery top cover 200 includes a dual metal sheet structure, where the battery top cover 200 includes a nickel metal sheet 210 and an aluminum metal sheet 220, the nickel metal sheet 210 and the aluminum metal sheet 220 are stacked up and down, the aluminum metal sheet 220 is connected to the battery cell 410, and the nickel metal sheet 210 is located at an opening of the battery bottom case 100.
Furthermore, the surface of the aluminum sheet metal is provided with an anti-corrosion layer, and the anti-corrosion layer is an aluminum oxide thin film layer.
It should be noted that, the battery top cover 200 adopts the top cover design of the bimetallic strip, and compared with the design of the upper and lower top combination of the conventional button battery, a reasonable available space can be saved for the battery core, so that the capacity of the button battery can be improved, and the processing and production of the button battery with the spiral electric meat can be realized. Specifically, the battery top cover 200 is a stacked structure of two layers of metal sheets, wherein the upper layer is a nickel metal sheet 210, the lower layer is an aluminum metal sheet 220, during assembly, the aluminum metal sheet 220 faces the electrical core placement area 111, the nickel metal sheet 210 faces the opening of the battery bottom case 100, and a dense chemical inert alumina thin film layer is formed on the surface of the aluminum metal sheet 220, so that corrosion of electrolyte can be prevented. The nickel metal sheet 210 has three functions, firstly, it can prevent the influence of moisture in the air and prevent the battery top cap 200 from rusting, secondly, the nickel metal sheet 210 provides necessary strength and prevents the single layer of aluminum metal from being deformed due to mechanical action when sealing, and finally, the nickel metal sheet 210 is also beneficial to welding when the battery top cap is externally connected with a metal sheet or a metal wire.
In one embodiment, the battery top cover is of a boss structure, so that the battery top cover with the boss structure can be processed through mechanical impact, and the battery top cover with the boss structure can reserve a larger space for the positive electrode lug to be folded, thereby effectively avoiding the deformation of the electric meat caused by the compression of the positive electrode guide sheet on the electric meat in the sealing process, and improving the overall quality of the button battery; for another example, the battery top cover can be a sheet-shaped flat structure, so that the production and manufacturing process can be simplified, and the cost is saved.
Compared with the prior art, the utility model discloses at least, following advantage has:
the utility model discloses a button cell packaging structure 10 is through setting up battery drain pan 100, battery top cap 200, seal assembly 300 and electric core subassembly 400 to the top cap design that adopts bimetallic strip replaces traditional button cell's upper and lower integrated configuration, so, can improve button cell internal capacity, and holistic structural strength obtains improving.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is 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, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A button cell packaging structure, comprising:
the battery bottom shell is internally provided with a battery cell accommodating cavity, the inner wall of the battery cell accommodating cavity close to the port is provided with a pit convex ring, and the pit convex ring divides the battery cell accommodating cavity into a battery cell placing area and a packaging area;
the battery top cover is arranged in the packaging area, and the edge of the opening end of the battery bottom shell is connected with the battery top cover in a pressing mode;
the sealing assembly comprises an insulating sealing ring, the insulating sealing ring is arranged in the packaging area, and the insulating sealing ring is positioned between the battery top cover and the battery core accommodating cavity; and
the battery core assembly comprises a battery core and electrolyte, the battery core and the electrolyte are respectively arranged in the battery core placing area, and the battery core is respectively electrically connected with the battery bottom shell and the battery top cover.
2. The button cell packaging structure of claim 1, wherein the cell top cover comprises a bi-metal sheet structure.
3. The coin cell package structure of claim 2, wherein the top cover comprises a nickel metal sheet and an aluminum metal sheet, the nickel metal sheet and the aluminum metal sheet are stacked up and down, the aluminum metal sheet is connected to the battery core, and the nickel metal sheet is located at the opening of the bottom shell of the battery.
4. The button cell packaging structure according to claim 3, wherein the surface of the aluminum sheet metal is provided with a corrosion protection layer.
5. The coin cell packaging structure of claim 4, wherein the corrosion protection layer is an aluminum oxide thin film layer.
6. The button cell packaging structure according to claim 5, wherein the cell top cover is a boss structure.
7. The button cell package structure of claim 1, wherein the insulating sealing ring is a sealing rubber ring.
8. The button cell package structure of claim 1, wherein the cell assembly further comprises a positive tab, one end of the positive tab is connected to the cell, and the other end of the positive tab is connected to the cell top cover.
9. The button battery packaging structure of claim 1, wherein the battery core assembly further comprises a negative electrode tab, one end of the negative electrode tab is connected with the battery core, and the other end of the negative electrode tab is connected with the battery bottom case.
10. The coin cell package of claim 1 wherein the cell bottom case is a metal bottom case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920789196.5U CN210245625U (en) | 2019-05-28 | 2019-05-28 | Button cell packaging structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920789196.5U CN210245625U (en) | 2019-05-28 | 2019-05-28 | Button cell packaging structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210245625U true CN210245625U (en) | 2020-04-03 |
Family
ID=69972981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920789196.5U Active CN210245625U (en) | 2019-05-28 | 2019-05-28 | Button cell packaging structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210245625U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111354912A (en) * | 2020-04-24 | 2020-06-30 | 福建南平延平区南孚新能源科技有限公司 | Electric connection method, electric connection structure and product of button cell pole shell and electrode lug |
| CN111509148A (en) * | 2020-04-30 | 2020-08-07 | 深圳市合壹新能技术有限公司 | Button cell |
| CN112886048A (en) * | 2021-02-07 | 2021-06-01 | 惠州市德能电池有限公司 | Button cell and preparation method thereof |
| CN113013527A (en) * | 2021-02-25 | 2021-06-22 | 东莞小锂新能源科技有限公司 | Novel button battery and manufacturing and mounting method of shell sealing element structure |
| WO2021208128A1 (en) * | 2020-04-16 | 2021-10-21 | 广东国光电子有限公司 | Lithium ion battery |
| WO2022060123A1 (en) * | 2020-09-16 | 2022-03-24 | 주식회사 엘지에너지솔루션 | Button-type secondary battery |
| CN115176378A (en) * | 2020-09-16 | 2022-10-11 | 株式会社Lg新能源 | Button type secondary battery |
| WO2022227651A1 (en) * | 2021-04-30 | 2022-11-03 | 国研新能(深圳)技术有限公司 | Battery case and battery |
-
2019
- 2019-05-28 CN CN201920789196.5U patent/CN210245625U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021208128A1 (en) * | 2020-04-16 | 2021-10-21 | 广东国光电子有限公司 | Lithium ion battery |
| CN111354912A (en) * | 2020-04-24 | 2020-06-30 | 福建南平延平区南孚新能源科技有限公司 | Electric connection method, electric connection structure and product of button cell pole shell and electrode lug |
| CN111354912B (en) * | 2020-04-24 | 2020-12-08 | 福建南平延平区南孚新能源科技有限公司 | Electric connection method, electric connection structure and product of button cell pole shell and electrode lug |
| CN111509148A (en) * | 2020-04-30 | 2020-08-07 | 深圳市合壹新能技术有限公司 | Button cell |
| WO2021218868A1 (en) * | 2020-04-30 | 2021-11-04 | 深圳市合壹新能技术有限公司 | Button battery |
| JP2023525690A (en) * | 2020-04-30 | 2023-06-19 | 深▲セン▼市合壹新能技術有限公司 | Coin battery |
| WO2022060123A1 (en) * | 2020-09-16 | 2022-03-24 | 주식회사 엘지에너지솔루션 | Button-type secondary battery |
| CN115176378A (en) * | 2020-09-16 | 2022-10-11 | 株式会社Lg新能源 | Button type secondary battery |
| CN112886048A (en) * | 2021-02-07 | 2021-06-01 | 惠州市德能电池有限公司 | Button cell and preparation method thereof |
| CN113013527A (en) * | 2021-02-25 | 2021-06-22 | 东莞小锂新能源科技有限公司 | Novel button battery and manufacturing and mounting method of shell sealing element structure |
| WO2022227651A1 (en) * | 2021-04-30 | 2022-11-03 | 国研新能(深圳)技术有限公司 | Battery case and battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210245625U (en) | Button cell packaging structure | |
| CN210245557U (en) | Button cell | |
| US3891462A (en) | Galvanic cell structure | |
| JP4259890B2 (en) | Sealed storage battery | |
| CN102210041A (en) | Sealed battery | |
| US20060068273A1 (en) | Cap assembly having a vent plate and rechargeable battery with same | |
| KR20180001230A (en) | Secondary battery | |
| CN214227087U (en) | Circular tab assembly and button cell | |
| CN112786973A (en) | Lamination buckle type lithium ion battery | |
| CN110224172A (en) | Coin shape lithium ion battery and preparation method thereof | |
| KR20090091731A (en) | Electrochemical cell for use in smart cards | |
| CN112563556A (en) | Button cell packaging structure and button cell | |
| JP2003151514A (en) | Cap assembly and square secondary battery provided with it | |
| JP4023962B2 (en) | Square sealed battery | |
| CN210403778U (en) | Button cell for improving radial space utilization rate | |
| CN210167462U (en) | Button type lithium ion battery | |
| CN206422171U (en) | Rubber-wrapped chargeable lithium ion button cell | |
| JP5704135B2 (en) | Manufacturing method of secondary battery | |
| JP3302200B2 (en) | Sealed rectangular non-aqueous electrolyte battery | |
| CN210245652U (en) | Cylindrical lithium battery | |
| KR20160015778A (en) | A sylnder type battery having enhanced vibration resistant property | |
| JP2001307686A (en) | Battery can, its manufacturing method and battery | |
| CN112467268A (en) | Button battery and preparation method thereof | |
| JP3131145U (en) | Button-type alkaline battery | |
| WO2001047046A1 (en) | A thin battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |