CN111933831A - Button lithium battery and preparation method thereof - Google Patents
Button lithium battery and preparation method thereof Download PDFInfo
- Publication number
- CN111933831A CN111933831A CN202010946785.7A CN202010946785A CN111933831A CN 111933831 A CN111933831 A CN 111933831A CN 202010946785 A CN202010946785 A CN 202010946785A CN 111933831 A CN111933831 A CN 111933831A
- Authority
- CN
- China
- Prior art keywords
- plate
- mounting hole
- connecting end
- shell
- lithium
- 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
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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0422—Cells or battery with cylindrical casing
- H01M10/0427—Button cells
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- 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
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- 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)
Abstract
The invention relates to the technical field of lithium battery preparation, in particular to a button lithium battery and a preparation method thereof, wherein the button lithium battery comprises the following components: the device comprises a shell, a first fixing device and a second fixing device, wherein the shell is provided with a cavity with an open top, and a first through mounting hole is formed in the inner wall of the shell; the battery cell is accommodated in the cavity; the first pole plate is provided with a first connecting end, and the first connecting end penetrates through the first mounting hole; a second polar plate having a second connection end; the cover plate is covered on the shell and provided with a second mounting hole, and the second connecting end penetrates through the second mounting hole; the button lithium battery adopts the first polar plate to be connected with the first pole lug of the battery cell, adopts the second polar plate to be connected with the second pole lug of the battery cell, and has the advantages of simple structure and high space utilization rate in the shell, wherein the first connecting end on the first polar plate penetrates out of the first mounting hole, and the second connecting end on the second polar plate penetrates out of the second mounting hole.
Description
Technical Field
The invention relates to the technical field of lithium battery preparation, in particular to a button type lithium battery and a preparation method thereof.
Background
Lithium batteries are a type of battery using a nonaqueous electrolyte solution with lithium metal or a lithium alloy as a negative electrode material. Because the chemical characteristics of lithium metal are very active, the requirements on the environment for processing, storing and using the lithium metal are very high, along with the development of scientific technology, the lithium battery becomes the mainstream at present, and the lithium battery can be roughly divided into two types: lithium metal batteries and lithium ion batteries, the lithium ion batteries do not contain metallic lithium and can be charged, the fifth generation product of rechargeable batteries, namely the lithium metal batteries, is produced in 1996, and the safety, specific capacity, self-discharge rate and cost performance ratio of the rechargeable batteries are superior to those of the lithium ion batteries; most of the existing button lithium batteries adopt bayonet structure design, and the design structure is complex and reduces the space utilization rate inside the shell.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the button lithium battery which has the advantages of simple structure and high space utilization rate inside the shell.
The invention also provides a method for preparing the button lithium battery.
The technical scheme adopted by the invention for solving the technical problems is as follows: a lithium button cell comprising: the device comprises a shell, a first fixing device and a second fixing device, wherein the shell is provided with a cavity with an open top, and a first through mounting hole is formed in the inner wall of the shell; the battery cell is accommodated in the cavity; the first pole plate is provided with a first connecting end, the first pole plate is arranged in the cavity and is connected with a first lug of the battery cell, and the first connecting end penetrates through the first mounting hole; the second polar plate is provided with a second connecting end, is arranged at the upper end of the battery cell and is connected with the second polar lug of the battery cell; the cover plate covers the shell and is provided with a second mounting hole, and the second connecting end penetrates through the second mounting hole.
Further, the first mounting hole is provided at the bottom of the housing.
Further, the first connection end protrudes from the first mounting hole and/or the second connection end protrudes from the second mounting hole.
Further, the housing and/or the cover plate are made of steel or aluminum.
Further, an insulating glue is arranged between the first polar plate and the shell.
Furthermore, an insulating glue is arranged between the second polar plate and the cover plate.
Furthermore, the first mounting hole and/or the second mounting hole are circular holes, and insulating glue is arranged between the first connecting end and the first mounting hole and between the second connecting end and the second mounting hole.
Further, the first connecting end and the first pole plate are integrally formed and/or the second connecting end and the second pole plate are integrally formed and arranged.
Further, the first pole plate and the first pole lug are fixed in a welding mode and/or the second pole plate and the second pole lug are fixed in a welding mode.
A preparation method of a button lithium battery comprises the following steps:
installing a first polar plate, coating insulating glue on the inner wall of the shell, installing the first polar plate in the shell, and enabling a first connecting end to penetrate out of the first installing hole;
placing the battery cell into the cavity, and connecting a first tab of the battery cell with the first polar plate to realize electric conduction;
mounting a second polar plate, placing the second polar plate on the upper end face of the battery cell, and connecting a second polar lug of the battery cell with the second polar plate to realize electric conduction;
and the mounting cover plate is coated with insulating glue on the upper end surfaces of the second pole plate and the shell, the cover plate covers the upper end surface of the shell, and the second connecting end penetrates out of the second mounting hole.
The invention has the following beneficial effects: the button lithium battery adopts the first polar plate to be connected with the first pole lug of the battery cell, adopts the second polar plate to be connected with the second pole lug of the battery cell, and has the advantages of simple structure and high space utilization rate in the shell, wherein the first connecting end on the first polar plate penetrates out of the first mounting hole, and the second connecting end on the second polar plate penetrates out of the second mounting hole.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic assembly diagram of a lithium button cell battery according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of a lithium button cell according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 and 2, the lithium button cell includes a casing 100, a cell 200, a first plate 300, a second plate 400 and a cover plate 500, wherein the casing 100 has a cavity with an open top, a through first mounting hole 101 is formed on an inner wall of the casing 100, the first plate 300 has a first connection end 301, the first plate 300 and the cell 200 are sequentially disposed in the cavity, a first tab 201 of the cell 200 is connected with the first plate 300 to form electrical conduction, the first connection end 301 protrudes from the first mounting hole 101, the second plate 400 is disposed at an upper end of the cell 200 and is connected with a second tab 202 of the cell 200 to form electrical conduction, the second plate 400 is provided with a second connection end 401, the cover plate 500 is provided with a second mounting hole 500, the cover plate 500 is covered on the top of the casing 100 to enclose the first plate 300, the cell 200 and the second plate 400 in the cavity, and the second connection end 401 passes out of the second mounting hole 500; it should be noted that, the button lithium battery of the present invention may be a cylindrical lithium battery or a square battery, and the first mounting hole 101 and the second mounting hole 500 may be circular holes or square holes, the first connection end 301 is a circular or square protrusion from the end surface of the first polar plate 300, the second connection end 401 is a circular or square protrusion from the end surface of the second polar plate 400, and the first connection end 301 and the first mounting hole 101 and the second connection end 401 and the second mounting hole 500 are in clearance fit, it should be noted that in this embodiment, the first tab 201 of the battery cell 200 is specified as a negative electrode, and the second tab 202 is specified as a positive electrode; the button lithium battery of the invention does not need to be provided with a bayonet on the shell 100, and has the advantages of simple structure and high space utilization rate of the cavity.
In some embodiments, the first mounting hole 101 is disposed at the bottom of the casing 100, the first plate 300 is also disposed at the bottom of the casing 100, and the first connection end 301 protrudes out of the first mounting hole 101, the lithium button cell of this embodiment is suitable for a case where electrodes are separately disposed at two opposite ends of the battery cell 200, of course, the first mounting hole 101 may also be disposed at a side surface of the casing 100, that is, the position where the first mounting hole 101 is disposed on the casing 100 may be determined according to a manner of leading out the electrodes on the battery cell 200.
In some embodiments, referring to fig. 1 and 2, the first connection end 301 protrudes from the first installation hole 101 and/or the second connection end 401 protrudes from the second installation hole 500, so that the first tab 201 and the second tab 202 of the battery cell 200 respectively protrude from the outer surface of the casing 100, thereby facilitating the electrical connection of the lithium button cell with an external structure, and in this embodiment, the first connection end 301 is recessed in the first installation hole 101, and the second connection end 401 protrudes from the second installation hole 500, so that the positive electrode and the negative electrode of the lithium button cell can be easily distinguished by a user, and the first connection end 301 is recessed from the bottom of the casing 100 or is flush with the bottom of the casing 100, thereby ensuring that the lithium button cell can be laid on a horizontal plane, and facilitating storage, packaging and use.
In some embodiments, referring to fig. 2, an insulating adhesive 600 is disposed between the first pole plate 300 and the case 100, and an insulating adhesive 600 is disposed between the second pole plate 400 and the cover plate 500, specifically, the insulating adhesive 600 can ensure the insulating performance between the first pole plate 300, the second pole plate 400 and the case 100, and the cover plate 500 is bonded to the upper end of the case 100 by using the insulating adhesive 600, so that the assembly method is simple in process and effectively reduces the production cost; in other embodiments, the insulating glue 600 is further coated on the inner walls of the first mounting hole 101 and the second mounting hole 500, so as to prevent the cell 200 from being damaged due to shaking of the first polar plate 300 and the second polar plate 400 in the cavity after assembly.
In some embodiments, the first electrode plate 300 and the second electrode plate 400 can be made of a conductive material, such as copper, aluminum, etc., and the first connection end 301 is integrally formed with the first electrode plate 300, and the second connection end 401 is integrally formed with the second electrode plate 400.
In some embodiments, the first tab 201 and the second tab 202 on the battery cell 200 are both made of elastic metal materials, and when the battery cell is mounted, the battery cell 200 can be fixed in the cavity by the elastic force between the first tab 201 and the first polar plate 300 and the elastic force between the second tab 202 and the second polar plate 400, so that the assembly is convenient by adopting such a structure, and the assembly efficiency is improved; in other embodiments, the first electrode plate 300 may be welded to the first tab 201, and the second electrode plate 400 may be welded to the second tab 202, so as to ensure the stability of electrical conduction between the first tab 201 and the first electrode plate 300 and the stability of electrical conduction between the second tab 202 and the second electrode plate 400.
It should be noted that, in all the above embodiments, the casing 100 and the cover plate 500 may be made of hard metal or alloy, such as steel or aluminum alloy, and the insulating glue 600 is disposed between the casing 100 and the cover plate 500 made of hard metal and the first pole plate 300 and the second pole plate 400, so as to avoid the problem of short circuit; insulating glue 600 is arranged between the first connecting end 301 and the first mounting hole 101 in clearance fit, and between the second connecting end 401 and the second mounting hole 501; in an emergency, the cavity of the housing 100 generates gas to cause the pressure in the cavity to be too high, the insulating glue 600 can expand to form a gap, the gas in the cavity can be released from the gap, explosion is prevented, and the safety of the button lithium battery is improved.
In other embodiments, the casing 100 and the cover plate 500 may also be made of an insulating material, such as high temperature resistant plastic or ceramic, in order to lead out the first connection end 301 and the second connection end 401 of the two electrodes of the battery cell 200, thereby improving the insulating performance of the lithium button cell.
A method for preparing a lithium button cell, which can prepare the lithium button cell as the above embodiment, comprises the following steps:
the first electrode plate 300 may be mounted by coating an insulating adhesive 600 on an inner wall of the casing 100 or on an end surface of the first electrode plate 300 having a first connection end 301 protruding therefrom, and then mounting the first electrode plate 300 in the casing 100, in this embodiment, the mounting hole is disposed at the bottom of the casing 100, because the insulating adhesive 600 is coated on the bottom of the cavity, the first connection end 301 is correspondingly mounted in the first mounting hole 101 and protrudes out from the first mounting hole 101, and at this time, the first electrode plate 300 does not directly contact with the casing 100.
Put into electric core 200, put into the cavity with electric core 200 to the first utmost point ear 201 of electric core 200 contacts in order to realize the electric conductance, and in this embodiment, first utmost point ear 201 adopts the metal material who has certain elasticity to make, can guarantee that first utmost point ear 201 always contacts with first polar plate 300 through the elastic force of first utmost point ear 201 self.
The second pole plate 400 is mounted, the second mounting plate is mounted on the upper end surface of the battery cell 200 in a manner that the second connection end 401 faces upward, at this time, the second pole plate 400 contacts with the second pole tab 202 of the battery cell 200 to realize electrical conduction, in this embodiment, the second pole tab 202 is made of a metal material with certain elasticity, and the second pole tab 202 can be ensured to be always in contact with the second pole plate 400 by the elastic force of the second pole tab 202 itself.
The mounting cover plate 500 is formed by coating the end face having the second connecting terminal on the second pole plate 400 and the upper end face of the housing 100 with the insulating adhesive 600, covering the cover plate 500 on the upper end face of the housing 100, and correspondingly mounting the second connecting terminal 401 in the second mounting hole 500 and penetrating out from the second mounting hole 500, at this time, the second pole plate 400 is not in direct contact with the housing 100 and the cover plate 500.
It should be noted that, in the above embodiment, the first plate 300 is adhesively fixed at the bottom of the cavity by the insulating adhesive 600, and the cover plate 500 is adhesively fixed at the upper end of the casing 100 by the insulating adhesive 600, and encloses the first plate 300, the battery cell 200, and the second plate 400 in the cavity of the casing 100.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. A lithium button cell comprising:
the device comprises a shell, a first fixing device and a second fixing device, wherein the shell is provided with a cavity with an open top, and a first through mounting hole is formed in the inner wall of the shell;
the battery cell is accommodated in the cavity;
the first pole plate is provided with a first connecting end, the first pole plate is arranged in the cavity and is connected with a first lug of the battery cell, and the first connecting end penetrates through the first mounting hole;
the second polar plate is provided with a second connecting end, is arranged at the upper end of the battery cell and is connected with the second polar lug of the battery cell;
the cover plate covers the shell and is provided with a second mounting hole, and the second connecting end penetrates through the second mounting hole.
2. A lithium button cell according to claim 1, wherein said first mounting hole is formed in the bottom of said case.
3. A lithium button cell according to claim 1 or 2, characterized in that the first connecting end protrudes from the first mounting hole and/or the second connecting end protrudes from the second mounting hole.
4. A lithium button cell battery as in claim 1, wherein said casing and/or said cover plate are made of steel or aluminum.
5. A lithium button cell according to claim 4, characterized in that an insulating glue is provided between the first plate and the casing.
6. The lithium button cell as recited in claim 4, wherein an insulating glue is disposed between the second plate and the cover plate.
7. The button lithium battery as claimed in claim 1, wherein the first mounting hole and/or the second mounting hole are circular holes, and an insulating adhesive is disposed between the first connecting end and the first mounting hole and between the second connecting end and the second mounting hole.
8. A lithium button cell according to claim 1, characterized in that said first connecting end is integrally formed with said first plate and/or said second connecting end is integrally formed with said second plate.
9. The lithium button cell battery as recited in claim 1, wherein the first plate is welded to the first tab and/or the second plate is welded to the second tab.
10. A preparation method of a button lithium battery is characterized by comprising the following steps:
installing a first polar plate, coating insulating glue on the inner wall of the shell, installing the first polar plate in the shell, and enabling a first connecting end to penetrate out of the first installing hole;
placing the battery cell into the cavity, and connecting a first tab of the battery cell with the first polar plate to realize electric conduction;
mounting a second polar plate, placing the second polar plate on the upper end face of the battery cell, and connecting a second polar lug of the battery cell with the second polar plate to realize electric conduction;
and the mounting cover plate is coated with insulating glue on the upper end surfaces of the second pole plate and the shell, the cover plate covers the upper end surface of the shell, and the second connecting end penetrates out of the second mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010946785.7A CN111933831A (en) | 2020-09-10 | 2020-09-10 | Button lithium battery and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010946785.7A CN111933831A (en) | 2020-09-10 | 2020-09-10 | Button lithium battery and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111933831A true CN111933831A (en) | 2020-11-13 |
Family
ID=73308924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010946785.7A Pending CN111933831A (en) | 2020-09-10 | 2020-09-10 | Button lithium battery and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111933831A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112952299A (en) * | 2021-03-11 | 2021-06-11 | 安徽利维能动力电池有限公司 | Winding type lithium battery cell pole piece structure |
| CN114421064A (en) * | 2021-12-31 | 2022-04-29 | 天津市捷威动力工业有限公司 | Battery and battery assembling method |
| CN114552079A (en) * | 2020-11-25 | 2022-05-27 | 三星Sdi株式会社 | Rechargeable battery |
| WO2022104958A1 (en) * | 2020-11-18 | 2022-05-27 | 江门市元熙科技有限公司 | Button cell |
| WO2023272438A1 (en) * | 2021-06-28 | 2023-01-05 | Hefei Gotion High-Tech Power Energy Co., Ltd. | Cylindrical battery cell, battery and method for forming cylindrical battery cell |
-
2020
- 2020-09-10 CN CN202010946785.7A patent/CN111933831A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022104958A1 (en) * | 2020-11-18 | 2022-05-27 | 江门市元熙科技有限公司 | Button cell |
| CN114552079A (en) * | 2020-11-25 | 2022-05-27 | 三星Sdi株式会社 | Rechargeable battery |
| CN112952299A (en) * | 2021-03-11 | 2021-06-11 | 安徽利维能动力电池有限公司 | Winding type lithium battery cell pole piece structure |
| WO2023272438A1 (en) * | 2021-06-28 | 2023-01-05 | Hefei Gotion High-Tech Power Energy Co., Ltd. | Cylindrical battery cell, battery and method for forming cylindrical battery cell |
| CN114421064A (en) * | 2021-12-31 | 2022-04-29 | 天津市捷威动力工业有限公司 | Battery and battery assembling method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111933831A (en) | Button lithium battery and preparation method thereof | |
| CN209947930U (en) | Battery cell and battery feedthrough | |
| JP4499648B2 (en) | Lithium ion secondary battery | |
| JP2004146362A (en) | Cap assembly, secondary battery comprising the same, and method of manufacturing cap assembly | |
| KR20130090957A (en) | Battery cell of novel embedded type structure | |
| TWI485911B (en) | Secondary battery pack and method of manufacturing a battery cell for a secondary battery pack | |
| KR101113557B1 (en) | Secondary battery | |
| CN210110860U (en) | Top cover assembly and secondary battery | |
| CN113471513A (en) | Miniature lithium battery and preparation method thereof | |
| WO2021253192A1 (en) | Battery and electrical device provided with same | |
| CN111628212A (en) | Soft package lithium ion battery, manufacturing method thereof and electric device | |
| KR101422656B1 (en) | Battery Cell of Novel Embedded Type Structure | |
| CN212380479U (en) | Button type lithium battery | |
| KR20150144602A (en) | Electrode assembly and secondary battery having the same | |
| CN212907874U (en) | Battery without pole ear | |
| TW201535835A (en) | Battery pack having PCM case | |
| WO2022134218A1 (en) | Button battery casing and button battery | |
| CN112736337A (en) | Cover plate assembly and battery applying same | |
| CN211455874U (en) | Battery with a battery cell | |
| CN217134496U (en) | Button cell | |
| CN218123569U (en) | Button cell | |
| KR20150106604A (en) | Battery Pack Having Wire Connector | |
| CN215911538U (en) | Battery and electronic device | |
| CN211265602U (en) | Button cell | |
| CN220042211U (en) | Steel shell battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |