CN212907871U - Hard shell button cell - Google Patents
Hard shell button cell Download PDFInfo
- Publication number
- CN212907871U CN212907871U CN202021747117.3U CN202021747117U CN212907871U CN 212907871 U CN212907871 U CN 212907871U CN 202021747117 U CN202021747117 U CN 202021747117U CN 212907871 U CN212907871 U CN 212907871U
- Authority
- CN
- China
- Prior art keywords
- shell
- tab
- protrusion
- pole
- half shell
- 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
Abstract
The utility model relates to a hard shell button battery, which comprises a shell, a pole core, a first pole ear and a second pole ear; the polarity of the first tab is different from that of the second tab; the shell comprises a first half shell and a second half shell, the first half shell and the second half shell are hermetically connected to form a sealed cavity on the inner sides of the first half shell and the second half shell, and the pole core is accommodated in the sealed cavity; one end of the first half shell, which is far away from the second half shell, is provided with a first bulge and a second bulge; the first protrusion and the second protrusion protrude in a direction away from the second half shell; the first tab is connected with the pole core and penetrates out of the first half shell from the first bulge, and the first tab is insulated from the shell; the second tab is connected with the pole core and penetrates out of the first half shell from the second protrusion, and the second tab is insulated from the shell. Compared with the prior art, directly be connected with outer circuit electricity through first utmost point ear and second utmost point ear, need not to increase welding impedance with first utmost point ear and second utmost point ear welding on the shell, reduced the impedance of battery, improved the energy density of battery.
Description
Technical Field
The utility model belongs to the technical field of the crust button cell, especially, relate to a crust button cell.
Background
The hard shell button cell is a sealed cell with metal shell, and features small size and high sealing performance, so it is widely used in various miniature electronic products. In recent years, with the development of scientific technology, button cells are deeper and deeper into the lives of people, and higher requirements are put forward on the performance of the button cells.
The existing hard shell button battery comprises an upper shell, a lower shell, an insulating part and a pole core, wherein the upper shell and the lower shell form a sealed cavity through insulation sealing of the insulating part, and the pole core is accommodated in the sealed cavity. The pole core is led out of a positive pole lug and a negative pole lug, the positive pole lug is welded with the upper shell, and the negative pole lug is welded with the lower shell, so that the pole core is electrically connected with an external circuit through the upper shell and the lower shell. The hard shell button battery is connected with the shell through the tabs, the upper shell serves as a positive electrode, the lower shell serves as a negative electrode, and insulation protection treatment is carried out between the upper shell and the lower shell to avoid short circuit.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the hard-shell button battery aims at the problem that the battery impedance of the existing hard-shell button battery is high.
In order to solve the above technical problem, an embodiment of the present invention provides a hard-shell button battery, which includes a housing, a pole core, a first tab and a second tab; the polarity of the first tab is different from that of the second tab;
the shell comprises a first half shell and a second half shell which are connected in a sealing mode to form a sealing cavity on the inner sides of the first half shell and the second half shell, and the pole core is contained in the sealing cavity; a first protrusion and a second protrusion are arranged at one end of the first half shell, which is far away from the second half shell; the first protrusion and the second protrusion protrude in a direction away from the second half shell;
the first tab is connected with the pole core and penetrates out of the first half shell from the first bulge, and the first tab is insulated from the shell; the second tab is connected with the pole core and penetrates out of the first half shell from the second protrusion, and the second tab is insulated from the shell.
Optionally, the hard-shell button cell further comprises a first seal and a second seal; the first sealing element is connected between the first protrusion and the first pole lug to realize insulation sealing of the first protrusion and the first pole lug; the second sealing member is connected between the second protrusion and the second pole lug to realize insulation sealing of the second protrusion and the second pole lug.
Optionally, the first sealing element comprises a first sealing ring and a first mounting element, the first sealing ring is arranged in the first protrusion, the first mounting element is arranged at one end of the first protrusion far away from the second half shell, and the first tab passes through the first sealing element and is led out from the outer end face of the first mounting element;
the second sealing piece comprises a second sealing ring and a second mounting piece, the second sealing ring is arranged in the second protrusion, the second mounting piece is arranged at one end, far away from the second half shell, of the second protrusion, and the second pole lug penetrates through the second sealing piece and is led out from the outer end face of the second mounting piece.
Optionally, the first protrusion and the second protrusion are both tubular protrusions.
Optionally, the first tab comprises a first cylindrical section located within the first protrusion;
the second pole ear includes a second cylindrical segment located within the second protrusion.
Optionally, the first tab comprises a first frustum section located within the first protrusion;
the second pole ear includes a second frustum segment located within the second protrusion.
Optionally, the first tab comprises a third cylindrical section exposed from the housing; the second pole ear comprises a fourth cylindrical section exposing the housing; or the like, or, alternatively,
the first tab comprises a third circular truncated cone section exposed out of the shell; the second pole ear includes a fourth circular truncated cone segment exposing the housing.
Optionally, the first tab comprises a first flattened section connected with the pole core; the second tab includes a second flattened section connected to the pole core.
Optionally, the first projection and the second projection project in an axial direction of the pole piece, the first projection and the second projection being circumferentially different by 180 °.
Optionally, a liquid injection port is further formed in one end, far away from the second half shell, of the first half shell;
the hard-shell button battery also comprises a third sealing element for sealing the liquid injection port.
Compared with the prior art, the hard-shell button battery provided by the embodiment of the utility model has the advantages that the first tab is insulated from the first bulge and penetrates out of the first half shell from the first bulge; the second lug is insulated from the second bulge and penetrates out of the first half shell from the second bulge; the hard shell button battery of the utility model is directly electrically connected with an external circuit through the first tab and the second tab, the shell is uncharged, insulation protection is not needed between the first half shell and the second half shell, the structure of the hard shell button battery is simplified, the first half shell and the second half shell are convenient to connect, and the hard shell button battery is beneficial to production and assembly; and need not to weld first utmost point ear and second utmost point ear on the shell, left out welding process, reduced the processing degree of difficulty, also avoid increasing the connection impedance that first utmost point ear is connected with the shell and the connection impedance that second utmost point ear and shell are connected, for the battery of being connected through shell and outer circuit electricity, the utility model discloses a duricrust button cell has reduced the impedance of battery, has improved the energy density of battery.
Drawings
Fig. 1 is a schematic structural view of a hard-shell button battery according to an embodiment of the present invention;
fig. 2 is a sectional view of fig. 1.
The reference numerals in the specification are as follows:
1. a housing; 11. a first half shell; 111. a first protrusion; 112. a second protrusion; 12. a second half shell; 13. sealing the cavity; 2. a pole piece; 3. a first tab; 4. a second tab; 5. a first seal member; 51. a first seal ring; 52. a first mounting member; 6. a second seal member; 61. a second seal ring; 62. a second mount.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
As shown in fig. 1 and fig. 2, the hard-shell button battery provided by the embodiment of the present invention includes a housing 1, a pole core 2, a first pole tab 3 and a second pole tab 4; the polarity of the first tab 3 is different from that of the second tab 4;
the housing 1 comprises a first half shell 11 and a second half shell 12, the first half shell 11 and the second half shell 12 are hermetically connected to form a sealed cavity 13 on the inner sides of the two, and the pole core 2 is accommodated in the sealed cavity 13; one end of the first half shell 11 far away from the second half shell 12 is provided with a first protrusion 111 and a second protrusion 112; the first projection 111 and the second projection 112 project away from the second half-shell 12;
the first tab 3 is connected with the pole core 2 and penetrates out of the first half shell 11 from the first protrusion 111, and the first tab 3 is insulated from the shell 1; the second tab 4 is connected to the pole piece 2 and extends out of the first half-shell 11 through the second protrusion 112, and the second tab 4 is insulated from the housing 1.
Compared with the prior art, the hard-shell button battery provided by the embodiment of the utility model has the advantages that the first tab 3 is insulated from the first protrusion 111 and penetrates out of the first half shell 11 from the first protrusion 111; the second pole ear 4 is insulated from the second protrusion 112 and penetrates out of the first half shell 11 from the second protrusion 112; the hard-shell button battery of the utility model is directly electrically connected with an external circuit through the first tab 3 and the second tab 4, the shell 1 is uncharged, insulation protection is not needed between the first half shell 11 and the second half shell 12, the structure of the hard-shell button battery is simplified, the first half shell 11 and the second half shell 12 are convenient to connect, and the hard-shell button battery is beneficial to production and assembly; and need not to weld first utmost point ear 3 and second utmost point ear 4 on shell 1, left out welding process, reduced the processing degree of difficulty, also avoid increasing the connection impedance that first utmost point ear 3 is connected with shell 1 and the connection impedance that second utmost point ear 4 is connected with shell 1, for the battery of being connected through shell 1 and outer circuit electricity, the utility model discloses a crust button cell has reduced the impedance of battery, has improved the energy density of battery.
Specifically, the first half shell 11 and the second half shell 12 are welded, and are firmly connected and have strong sealing performance.
In one embodiment, as shown in fig. 1, the hard-shell button cell further comprises a first seal 5 and a second seal 6; the first sealing member 5 is connected between the first protrusion 111 and the first tab 3 to achieve insulation sealing therebetween; the second sealing member 6 is connected between the second protrusion 112 and the second pole ear 4 to realize insulation sealing of the two; the tightness of the hard-shell button battery is ensured, and the contact between the first lug 3 and the first protrusion 111 and the contact between the second lug 4 and the second protrusion 112 are avoided, so that the hard-shell button battery is prevented from being short-circuited.
In one embodiment, as shown in fig. 1 and 2, the first sealing member 5 includes a first sealing ring 51 and a first mounting member 52, the first sealing ring 51 is disposed in the first protrusion 111, the first mounting member 52 is disposed at one end of the first protrusion 111 far from the second half shell 12, and the first tab 3 passes through the first sealing member 5 and is led out from the outer end face of the first mounting member 52;
the second sealing element 6 comprises a second sealing ring 61 and a second mounting part 62, the second sealing ring 61 is arranged in the second protrusion 112, the second mounting part 62 is arranged at one end of the second protrusion 112 far away from the second half shell 12, and the second lug 4 passes through the second sealing element 6 and is led out from the outer end face of the second mounting part 62; further ensuring the insulation and the sealing between the first tab 3 and the first protrusion 111 and between the second tab 4 and the second protrusion 112; the first mounting member 52 can prevent the first protrusion 111 from contacting an external circuit, and the second mounting member 62 can prevent the second protrusion 112 from contacting the external circuit, thereby achieving insulation of the first half-case 11 from the external circuit.
It should be noted that the first seal ring 51, the first mounting member 52, the second seal ring 61 and the second mounting member 62 are all insulating members.
Specifically, the first seal member 5 is integrally formed, and the second seal member 6 is integrally formed; the integral strength of the first sealing element 5 and the second sealing element 6 is improved, the structure is simple, and the processing and the assembly are convenient.
In one embodiment, as shown in fig. 2, the first protrusion 111 and the second protrusion 112 are both tubular protrusions; the lead-out of the first tab 3 and the second tab 4 is facilitated, the structure is simple, and the processing is convenient.
Specifically, the first sealing ring 51 is fixed in the first protrusion 111, and the first tab 3 passes through the first sealing ring 51 and presses the opposite peripheral wall of the first protrusion 111 inward, so as to drive the first sealing ring 51 to deform to tightly attach to the first tab 3 to form a seal;
the second sealing ring 61 is fixed in the second protrusion 112, and the second tab 4 penetrates through the second sealing ring 61 to press the opposite peripheral wall of the second protrusion 112 inward, so as to drive the second sealing ring 61 to deform to tightly adhere to the second tab 4 to form a seal.
In one embodiment, as shown in fig. 2, the first tab 3 is flat as a whole; the second pole ear 4 is flat as a whole.
In another embodiment, not shown, the first tab 3 comprises a first cylindrical section located within the first projection 111; the contact between the first cylindrical section and the first sealing element 5 is more fit, so that the periphery side of the first cylindrical section is prevented from piercing the first sealing element 5 and contacting the first bulge 111;
the second pole ear 4 comprises a second cylindrical section located within the second protrusion 112; the contact of the second cylindrical section and the second sealing member 6 is more fit, so that the periphery side of the second cylindrical section is prevented from piercing the second sealing member 6 and contacting the second bulge 112, and short circuit of the hard-shell button battery is prevented.
In particular, the first cylindrical section and the tubular projection compress the first sealing ring 51, forming a tight fit to achieve sealing between the first projection 111 and the first tab 3;
the second cylindrical section and the tubular projection compress the second sealing ring 61, forming a tight fit to achieve a seal between the second projection 112 and the second lug 4; simple structure and convenient installation.
In another embodiment, not illustrated, the first tab 3 comprises a first truncated cone segment located within the first projection 111; the contact between the first circular truncated cone section and the first sealing element 5 is more fit, so that the peripheral side of the first circular truncated cone section is prevented from piercing the first sealing element 5 and contacting the first bulge 111; the first circular platform section is more convenient to penetrate out of the first bulge 111;
the second pole ear 4 comprises a second truncated cone segment located within the second protrusion 112; the contact between the second circular truncated cone section and the second sealing element 6 is more fit, so that the peripheral side of the second circular truncated cone section is prevented from piercing the second sealing element 6 and contacting the second bulge 112; the second circular truncated cone section is more convenient to penetrate through the second protrusion 112.
Specifically, the first circular truncated cone segment and the tubular projection press the first seal ring 51, thereby forming a tight fit to achieve sealing between the first projection 111 and the first tab 3;
the second circular truncated cone segment and the tubular projection compress the second sealing ring 61, thereby forming a tight fit to effect a seal between the second projection 112 and the second lug 4; simple structure and convenient installation.
In an embodiment, not illustrated, the first tab 3 comprises a third cylindrical segment exposed out of the casing 1; the second pole ear 4 comprises a fourth cylindrical section exposed out of the housing 1; the first tab 3 and the second tab 4 can be used as plug-in posts to be directly inserted into a socket of an external circuit to realize electric connection, so that the hard-shell button battery can be conveniently connected with the external circuit, and the electric connection effect is more stable; the welding process between the first lug 3 and the second lug 4 and an external circuit is omitted, the connection impedance caused by welding is avoided, and the impedance of the battery is reduced.
In another embodiment, not illustrated, the first tab 3 comprises a third truncated cone section which is exposed out of the casing 1; the second lug 4 comprises a fourth circular truncated cone section exposed out of the shell 1; the first tab 3 and the second tab 4 can be used as plug-in posts to be directly inserted into a socket of an external circuit to realize electric connection, so that the hard-shell button battery can be conveniently connected with the external circuit, and the electric connection effect is more stable; the welding process between the first lug 3 and the second lug 4 and an external circuit is omitted, the connection impedance caused by welding is avoided, and the impedance of the battery is reduced.
In another embodiment, not illustrated, the first tab 3 comprises a first flattened section connected to the core 2; the second pole lug 4 comprises a second flat section connected to the pole core 2; the welding of the first tab 3 and the pole core 2 and the welding of the second tab 4 and the pole core 2 are facilitated.
In an embodiment, as shown in fig. 2, the first projection 111 and the second projection 112 project in the axial direction of the pole core 2, the first projection 111 and the second projection 112 being circumferentially different by 180 °; the first lug 3 and the second lug 4 can be led out conveniently, and interference between the first lug 3 and the second lug 4 is avoided.
In one embodiment, not shown, a liquid injection port is further provided at one end of the first half shell 11 away from the second half shell 12;
the hard-shell button battery also comprises a third sealing element for sealing the liquid injection port; the liquid can be conveniently injected into the sealed cavity 13, and the liquid injection port can also be used as an explosion-proof port when the hard-shell button battery is overcharged, so that the use safety of the hard-shell button battery is improved.
Specifically, the third seal is a steel ball.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A hard shell button battery is characterized by comprising a shell, a pole core, a first pole lug and a second pole lug; the polarity of the first tab is different from that of the second tab;
the shell comprises a first half shell and a second half shell which are connected in a sealing mode to form a sealing cavity on the inner sides of the first half shell and the second half shell, and the pole core is contained in the sealing cavity; a first protrusion and a second protrusion are arranged at one end of the first half shell, which is far away from the second half shell; the first protrusion and the second protrusion protrude in a direction away from the second half shell;
the first tab is connected with the pole core and penetrates out of the first half shell from the first bulge, and the first tab is insulated from the shell; the second tab is connected with the pole core and penetrates out of the first half shell from the second protrusion, and the second tab is insulated from the shell.
2. The hard-shell button cell of claim 1, further comprising a first seal member and a second seal member; the first sealing element is connected between the first protrusion and the first pole lug to realize insulation sealing of the first protrusion and the first pole lug; the second sealing member is connected between the second protrusion and the second pole lug to realize insulation sealing of the second protrusion and the second pole lug.
3. The hard-shell button cell of claim 2, wherein said first seal member comprises a first seal ring disposed within said first projection and a first mounting member disposed at an end of said first projection remote from said second half-shell, said first tab passing through said first seal member and exiting from an outer end face of said first mounting member;
the second sealing piece comprises a second sealing ring and a second mounting piece, the second sealing ring is arranged in the second protrusion, the second mounting piece is arranged at one end, far away from the second half shell, of the second protrusion, and the second pole lug penetrates through the second sealing piece and is led out from the outer end face of the second mounting piece.
4. The hard-shell button cell of claim 3, wherein the first and second projections are each tubular projections.
5. The hard-shell button cell of claim 4, wherein said first tab comprises a first cylindrical segment located within said first protrusion;
the second pole ear includes a second cylindrical segment located within the second protrusion.
6. The hard-shell button cell of claim 4, wherein said first tab comprises a first frustoconical segment located within said first protrusion;
the second pole ear includes a second frustum segment located within the second protrusion.
7. The hard-shell button cell of claim 1, wherein said first tab comprises a third cylindrical segment exposed from said housing; the second pole ear comprises a fourth cylindrical section exposing the housing; or the like, or, alternatively,
the first tab comprises a third circular truncated cone section exposed out of the shell; the second pole ear includes a fourth circular truncated cone segment exposing the housing.
8. The hard-shell button cell of claim 1, wherein said first tab comprises a first flattened section connected to said pole core; the second tab includes a second flattened section connected to the pole core.
9. The hard-shell button cell of claim 1, wherein said first and second projections project in an axial direction of said pole piece, said first and second projections differing in circumference by 180 °.
10. The hard-shell button cell of claim 1, wherein an injection port is further provided at an end of the first half shell remote from the second half shell;
the hard-shell button battery also comprises a third sealing element for sealing the liquid injection port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021747117.3U CN212907871U (en) | 2020-08-19 | 2020-08-19 | Hard shell button cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021747117.3U CN212907871U (en) | 2020-08-19 | 2020-08-19 | Hard shell button cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212907871U true CN212907871U (en) | 2021-04-06 |
Family
ID=75246397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021747117.3U Active CN212907871U (en) | 2020-08-19 | 2020-08-19 | Hard shell button cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212907871U (en) |
-
2020
- 2020-08-19 CN CN202021747117.3U patent/CN212907871U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212571143U (en) | Battery shell and battery | |
| CN215578776U (en) | Cylindrical lithium ion battery with novel structure | |
| CN207398237U (en) | New fastening lithium ionic cell housing | |
| CN206961931U (en) | A kind of cylindrical batteries | |
| CN212113760U (en) | Energy storage device | |
| CN215220838U (en) | Battery case, battery and vehicle | |
| CN113013526B (en) | Battery cover plate, battery and preparation method of battery | |
| CN103633259A (en) | PP plastic housing lithium ion battery | |
| CN212907871U (en) | Hard shell button cell | |
| WO2021088886A1 (en) | Button battery | |
| WO2021237776A1 (en) | Button battery | |
| WO2023124651A1 (en) | Battery | |
| CN104335388A (en) | Sealed battery | |
| CN215578753U (en) | Battery case and cover plate structure thereof | |
| CN214753924U (en) | Battery case, battery and vehicle | |
| CN214706060U (en) | Lithium battery structure and lithium battery | |
| WO2023226190A1 (en) | Battery assembly, battery, and electric vehicle | |
| WO2023173656A1 (en) | Battery structure assembly, battery, and electric vehicle | |
| CN213340462U (en) | Lithium ion battery | |
| CN209947672U (en) | Electrochemical energy storage device | |
| WO2022134218A1 (en) | Button battery casing and button battery | |
| CN211238305U (en) | Sealed shell structure and battery | |
| CN210628398U (en) | Prevent electric core connection structure of short circuit | |
| CN205944301U (en) | Electricity core structure and buckle formula secondary lithium ion battery | |
| CN213071223U (en) | Button cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |