CN217009500U - Battery with a battery cell - Google Patents
Battery with a battery cell Download PDFInfo
- Publication number
- CN217009500U CN217009500U CN202220831071.6U CN202220831071U CN217009500U CN 217009500 U CN217009500 U CN 217009500U CN 202220831071 U CN202220831071 U CN 202220831071U CN 217009500 U CN217009500 U CN 217009500U
- Authority
- CN
- China
- Prior art keywords
- battery
- plate
- current collecting
- welded
- connecting plate
- 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
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model provides a battery, which relates to the technical field of new energy, and comprises a battery shell and a battery cell, wherein an installation cavity is arranged in the battery shell, an upper opening connected with the installation cavity is formed in the battery shell, a negative current collecting plate is arranged at the upper end of the battery cell, and a positive current collecting plate is arranged at the lower end of the battery cell; one end of the battery cell with the positive electrode current collecting disc is welded with the bottom of the battery shell; and the negative current collecting plate is welded with a battery cover plate assembly, and the battery cover plate assembly is welded on the battery shell. One end of a positive current collecting disc of a battery cell is directly welded at the bottom of a battery shell, and a negative current collecting disc of the battery cell is welded on a battery cover plate component; the battery can only be used for the battery cap like this, and then has reduced the cost of whole battery, improves the market competition of enterprise.
Description
Technical Field
The utility model relates to the technical field of new energy, in particular to a battery.
Background
With the development of electric vehicles, the part cost of the battery is too high, the profit is reduced, and even the cost is lost, the battery needs to be continuously improved, the battery cost is reduced, and the enterprise competitiveness is improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a battery to relieve the technical problems of high battery cost and poor enterprise competitiveness.
The utility model provides a battery, which comprises a battery shell and a battery cell, wherein an installation cavity is arranged in the battery shell, an upper opening connected with the installation cavity is arranged on the battery shell, a negative current collecting disc is arranged at the upper end of the battery cell, and a positive current collecting disc is arranged at the lower end of the battery cell; one end of the battery cell, which is provided with the positive pole current collecting disc, is welded with the bottom of the battery shell;
and the negative electrode current collecting disc is welded with a battery cover plate assembly, and the battery cover plate assembly is welded on the battery shell.
In an optional embodiment, the anode current collecting disc comprises a first current collecting disc main body and a connecting sheet, one end of the connecting sheet is connected with the first current collecting disc main body, and the other end of the connecting sheet is welded with the battery cover plate assembly; and the connecting sheet is provided with a first inner groove for facilitating the bending of the connecting sheet.
In an optional embodiment, the first current collecting disc main body comprises a first connecting plate, the connecting plate is connected with one end of the first connecting plate, two sides of the first connecting plate in the length direction are respectively provided with a recessed plate, and the recessed plates are used for being welded with the battery cell.
In an alternative embodiment, a second connecting plate is arranged on one side of the concave plate far away from the first connecting plate, and a first diversion trench is formed between the first connecting plate and the second connecting plate.
In an optional embodiment, the connecting piece is provided with two first inner grooves, and the two first inner grooves are symmetrically arranged on two sides of the connecting piece in the length direction.
In an optional embodiment, the first connecting plate is provided with a first positioning hole and a first through hole, and a second inner groove is formed at one end of the first connecting plate, which is far away from the connecting sheet.
In an optional embodiment, the positive current collecting plate comprises a second current collecting plate main body, the second current collecting plate main body comprises a third connecting plate, two sides of the third connecting plate in the length direction are respectively provided with a protruding plate, and the protruding plates are used for being welded with the battery core;
and a fourth connecting plate is arranged on one side of the convex plate, which is far away from the third connecting plate, a second diversion trench is formed between the third connecting plate and the fourth connecting plate, and the fourth connecting plate is used for being welded with a battery shell.
In an optional embodiment, the third connecting plate is provided with at least one second through hole, and two ends of the third connecting plate in the length direction are respectively provided with a third inner groove.
In an optional embodiment, the battery cover plate assembly comprises a cover plate main body, a negative pole post and an upper plastic, wherein a mounting hole is formed in the cover plate main body, and the negative pole post is arranged in the mounting hole;
a plurality of mounting grooves arranged along the circumferential direction of the mounting holes are formed in the upper end of the cover plate main body, and the mounting grooves are communicated with the mounting holes; and the upper plastic is provided with a fixed boss corresponding to the mounting groove.
In an alternative embodiment, an annular groove is formed in the circumferential direction of the cathode pole; an annular boss corresponding to the annular groove is arranged on the upper plastic; or a riveting block is arranged on the cathode pole, and a riveting boss matched with the annular groove is arranged on the riveting block.
One end of a positive current collecting disc of a battery cell of the battery provided by the utility model is directly welded at the bottom of a battery shell, and a negative current collecting disc of the battery cell is welded on a battery cover plate component; therefore, the battery can be only used for the battery cap, the cost of the whole battery is reduced, and the market competitiveness of an enterprise is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a battery according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a section A-A of the battery shown in FIG. 1;
FIG. 3 is a partially enlarged view B of a structural schematic view of section A-A of the battery shown in FIG. 2;
FIG. 4 is a partial enlarged view of C, which is a structural schematic view of section A-A of the battery shown in FIG. 2;
fig. 5 is an exploded view of the battery shown in fig. 1;
fig. 6 is a schematic diagram of the structure of an anode current collecting disk of the cell of fig. 5;
fig. 7 is a schematic structural view of a positive current collecting disk of the cell shown in fig. 5;
fig. 8 is an exploded view of a battery cover plate assembly of the battery shown in fig. 1;
FIG. 9 is a schematic structural diagram of a cover plate main body of the battery cover plate assembly shown in FIG. 8;
fig. 10 is a schematic structural view of a negative electrode post of the battery cover plate assembly shown in fig. 8;
FIG. 11 is a structural diagram of the upper plastic of the battery cover plate assembly shown in FIG. 8;
fig. 12 is another structural view of a battery cover plate assembly of the battery shown in fig. 1.
Icon: 100-a battery case; 101-upper opening; 200-electric core; 300-an insulating film; 400-an insulating sheet; 500-an anode current collector; 501-connecting sheets; 502-a first connection board; 503-recessed plate; 504-a second connection plate; 505 — a first inner groove; 506-a first positioning hole; 507-a first via; 508-a second inner groove; 600-a negative pole post; 601-an annular groove; 700-coating plastic; 701-fixing a boss; 702-an annular boss; 800-a cover plate body; 801-mounting holes; 802-mounting grooves; 900-positive collector plate; 901-a third connection plate; 902-raised plate; 903-a fourth connecting plate; 904-second via; 905-a third inner groove; 120-sealing ring; 130-lower plastic; 140-riveting block; 141-riveting a boss.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1 to 12, the present invention provides a battery, including a battery case 100 and a battery core 200, wherein a mounting cavity is disposed in the battery case 100, an upper opening 101 connected to the mounting cavity is disposed on the battery case 100, an anode current collecting plate 500 is disposed at an upper end of the battery core 200, and an anode current collecting plate 900 is disposed at a lower end of the battery core 200; one end of the battery cell 200 having the positive current collecting plate 900 is welded to the bottom of the battery case 100;
a battery cover plate assembly welded to the battery case 100 is welded to the anode current collecting plate 500.
The battery case 100 of the battery only has one upper opening 101, after the positive current collecting disc 900 is welded at the lower end of the battery cell 200, the battery case 100 is inserted into the battery case from the upper opening 101, and then the battery case 100 is welded at the outer side of the battery case 900, so that the positive current collecting disc 900 is welded with the battery case 100; therefore, the use of the battery cap can be reduced, the cost of the battery is reduced, and the competitiveness of enterprises is improved.
Referring to fig. 5 and 6, in an alternative embodiment, the anode current collecting plate 500 includes a first current collecting plate body and a connection plate 501, one end of the connection plate 501 is connected to the first current collecting plate body, and the other end of the connection plate 501 is welded to the battery cover plate assembly; and a first inner groove 505 for facilitating bending of the connection piece 501 is provided in the connection piece 501.
In some embodiments, a first current collecting disc body is disposed on the anode current collecting disc 500, a connection sheet 501 is disposed on the first current collecting disc body, the connection sheet 501 is used for welding with a battery cover plate assembly, the first current collecting disc body is used for welding with the battery cell 200, and when the battery cover plate assembly is required to be welded with the battery case 100, the connection sheet 501 where the first inner groove 505 is disposed is bent.
Generally, two first inner grooves 505 are respectively disposed on two sides of the connecting sheet 501 in the length direction, and the first inner grooves 505 make the connecting sheet 501 easy to bend and play a role in short circuit fusing protection.
In an alternative embodiment, the first collecting tray body includes a first connecting plate 502, the connecting plate 501 is connected to one end of the first connecting plate 502, two recessed plates 503 are respectively disposed on two sides of the first connecting plate 502 in the length direction, and the recessed plates 503 are used for being welded to the battery cell 200.
In an alternative embodiment, a second connecting plate 504 is disposed on a side of the concave plate 503 away from the first connecting plate 502, and a first flow guide groove is formed between the first connecting plate 502 and the second connecting plate 504.
In an alternative embodiment, two first inner grooves 505 are provided on the connecting piece 501, and the two first inner grooves 505 are symmetrically provided on two sides of the connecting piece 501 in the length direction.
In an alternative embodiment, the first connecting plate 502 is provided with a first positioning hole 506 and a first through hole 507, and a second inner groove 508 is provided at an end of the first connecting plate 502 away from the connecting piece 501.
The first connecting plate 502 is provided with the first positioning hole 506, when the first current collecting plate main body of the negative current collecting plate 500 is required to be welded with the battery cell 200, the first positioning hole 506 is concentrically arranged with the winding core of the battery cell 200, so that the welding position of the first current collecting plate main body is positioned, the concave plate 503 of the first current collecting plate main body is welded with the battery cell 200, and further the connection of the first current collecting plate main body and the battery cell 200 is realized, and the concave plate 503 plays a role of a local reinforcing rib, so that the deformation of the negative current collecting plate 500 is reduced, and the welding U-rate is improved.
The second connecting plate 504 is arranged on the side far away from the recessed plate 503, the lower surfaces of the first connecting plate 502 and the second connecting plate 504 are higher than the lower surface of the recessed plate 503, and then a channel which is easy for electrolyte to flow is formed between each of the first connecting plate 502 and the second connecting plate 504 and the battery cell 200, so that the electrolyte is conveniently soaked into the battery cell 200.
The first flow guide groove formed between the first connecting plate 502 and the second connecting plate 504 by the concave plate 503 facilitates the flow of electrolyte, the first through hole 507 and the second inner groove 508 also have the function of facilitating the flow of electrolyte, and meanwhile, the weight of the first collecting disc main body is reduced, the cost of the first collecting disc main body is reduced, and the energy density is improved.
Referring to fig. 5 and 7, in an alternative embodiment, the positive current collecting plate 900 includes a second current collecting plate body, the second current collecting plate body includes a third connecting plate 901, two sides of the third connecting plate 901 in the length direction are respectively provided with a protruding plate 902, and the protruding plates 902 are used for welding with the battery cell 200;
a fourth connecting plate 903 is arranged on one side of the convex plate 902 far away from the third connecting plate 901, a second diversion trench is formed between the third connecting plate 901 and the fourth connecting plate 903, and the fourth connecting plate 903 is used for being welded with the battery shell 100.
In an alternative embodiment, at least one second through hole 904 is disposed on the third connecting plate 901, and a third inner groove 905 is disposed at each of two ends of the third connecting plate 901 in the length direction.
In some embodiments, two protruding plates 902 are disposed on the third connecting plate 901 of the second current collecting plate body of the positive current collecting plate 900, the protruding plates 902 are used for connecting with the battery cell 200, and the fourth connecting plate 903 disposed on the protruding plates 902 is used for welding with the battery case 100, that is, the third connecting plate 901 of the second current collecting plate body is welded with the battery cell 200, so as to achieve welding of the positive current collecting plate 900 with the battery cell 200, and after one end of the battery cell 200 having the positive current collecting plate 900 is inserted into the battery case 100 from the upper opening 101, welding is performed at the bottom of the battery case 100, so that the bottom of the battery case 100 is welded with the fourth connecting plate 903 of the positive current collecting plate 900, thereby achieving firm connection of the positive current collecting plate 900 with the battery cell 200 and the battery case 100.
The lower surface of the protruding plate 902 is higher than the lower surfaces of the third connecting plate 901 and the fourth connecting plate 903, so that a second diversion trench is formed at the lower end of the protruding plate 902, and the flow of the electrolyte at the bottom of the battery case 100 is facilitated; the third connecting plate 901 is provided with a second through hole 904 and a third inner groove 905, so that the weight of the positive current collecting disc 900 can be reduced, the cost is reduced, the energy density is improved, and the flowing and the soaking of electrolyte are facilitated.
Referring to fig. 8 to 12, in an alternative embodiment, the battery cover plate assembly includes a cover plate main body 800, a negative electrode post 600 and an upper plastic 700, a mounting hole 801 is formed in the cover plate main body 800, and the negative electrode post 600 is disposed in the mounting hole 801;
a plurality of mounting grooves 802 arranged along the circumferential direction of the mounting hole 801 are formed in the upper end of the cover plate main body 800, and the mounting grooves 802 are communicated with the mounting hole 801; a fixing boss 701 corresponding to the mounting groove 802 is provided on the upper plastic 700.
The battery also comprises an insulating film 300, an insulating sheet 400 is arranged on the upper surface of the cover plate main body 800, and the battery cover plate component also comprises some conventional parts, such as lower plastic 130 and a sealing ring 120; a liquid injection hole is formed in the cover plate main body 800, and a avoidance hole corresponding to the liquid injection hole is formed in the lower plastic 130; the negative electrode post 600 is inserted into the mounting hole 801 from the lower end of the cap plate body 800, and the lower plastic 130 and the sealing ring 120 are fixed to the cap plate body 800.
The sealing ring 120 and the upper plastic 700 are used to isolate the negative electrode post 600 from the cover plate body 800 and seal the mounting hole 801, the material of the negative electrode post 600 is generally copper, or one end of the negative electrode post 600 welded to the battery cell 200 is copper, and the other end is aluminum.
In order to firmly connect the upper plastic 700 and the cover plate body 800, a mounting groove 802 is provided on the cover plate body 800, generally at least three mounting grooves 802 are provided, a fixing boss 701 is provided on the upper plastic 700, and the fixing boss 701 can be inserted into the mounting groove 802, thereby increasing the torque between the upper plastic 700 and the cover plate body 800.
Respectively flattening the positive pole lug and the negative pole lug of the battery cell 200, welding the positive pole current collecting disc 900 with the positive pole lug of the battery cell 200, welding the negative pole current collecting disc 500 with the negative pole lug of the battery cell 200, and inserting the battery cell 200 with the positive pole current collecting disc 900 into the battery shell 100 from the upper opening 101; the battery cover plate assembly is bent such that the battery cover plate assembly covers the upper opening 101 of the battery case 100 and is welded, and then the positive current collecting plate 900 and the battery case 100 are welded such that the positive current collecting plate 900 is connected to the battery case 100. Injecting liquid into the battery, forming, installing and welding a sealing nail; finally, an insulating sheet 400 is attached to the battery cover plate assembly, and an insulating film 300 is wrapped outside the battery.
In an alternative embodiment, an annular groove 601 is formed in the circumferential direction of the negative electrode post 600; an annular boss 702 corresponding to the annular groove 601 is arranged on the upper plastic 700;
or, the circumference of negative electrode post 600 is provided with ring channel 601 be provided with riveting block 140 on negative electrode post 600, riveting block 140 is provided with the riveting boss 141 that matches with ring channel 601.
In some embodiments, the upper plastic 700 is directly formed on the cover plate body 800 by injection molding, the upper plastic 700 is formed on the cover plate body 800, and the annular boss 702 of the upper plastic 700 corresponds to the annular groove 601 on the negative electrode post 600, so that the torque between the negative electrode post 600 and the upper plastic 700 can be increased.
The negative electrode 600 is fixed to the cover plate body 800 by being riveted to the riveting block 140, and the riveting boss 141 that matches the annular groove 601 is provided on the riveting block 140.
One end of a positive current collecting disc 900 of a battery cell 200 of the battery provided by the utility model is directly welded at the bottom of a battery shell 100, and a negative current collecting disc 500 of the battery cell 200 is welded on a battery cover plate component; the battery can only be used for the battery cap like this, and then has reduced the cost of whole battery, improves the market competition of enterprise.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A battery is characterized by comprising a battery shell (100) and a battery core (200), wherein a mounting cavity is arranged in the battery shell (100), an upper opening (101) connected with the mounting cavity is arranged on the battery shell (100),
a negative current collecting plate (500) is arranged at the upper end of the battery cell (200), and a positive current collecting plate (900) is arranged at the lower end of the battery cell (200); one end of the battery core (200) with the positive electrode current collecting disc (900) is welded with the bottom of the battery shell (100);
and a battery cover plate assembly is welded on the negative current collecting plate (500) and is welded on the battery shell (100).
2. The battery according to claim 1, wherein the anode current collecting disk (500) includes a first current collecting disk main body and a connection piece (501), one end of the connection piece (501) is connected to the first current collecting disk main body, and the other end of the connection piece (501) is welded to the battery cover plate assembly; and a first inner groove (505) used for enabling the connecting piece (501) to be bent easily is arranged on the connecting piece (501).
3. The battery according to claim 2, wherein the first manifold body comprises a first connection plate (502), the connection plate (501) is connected to one end of the first connection plate (502), and a recessed plate (503) is provided on each of both sides of the first connection plate (502) in the length direction, the recessed plate (503) being used for welding with the battery cell (200).
4. The battery according to claim 3, wherein a side of the recessed plate (503) away from the first connection plate (502) is provided with a second connection plate (504), and a first flow guide groove is formed between the first connection plate (502) and the second connection plate (504).
5. The battery according to claim 2, characterized in that the connecting piece (501) is provided with two first inner grooves (505), and the two first inner grooves (505) are symmetrically arranged on two sides of the connecting piece (501) in the length direction.
6. The battery according to claim 3, wherein the first connecting plate (502) is provided with a first positioning hole (506) and a first through hole (507), and a second inner groove (508) is provided at an end of the first connecting plate (502) remote from the connecting tab (501).
7. The battery according to claim 1, wherein the positive collector plate (900) comprises a second collector plate body, the second collector plate body comprises a third connecting plate (901), two sides of the third connecting plate (901) in the length direction are respectively provided with a protruding plate (902), and the protruding plates (902) are used for being welded with the battery core (200);
a fourth connecting plate (903) is arranged on one side, far away from the third connecting plate (901), of the protruding plate (902), a second diversion trench is formed between the third connecting plate (901) and the fourth connecting plate (903), and the fourth connecting plate (903) is used for being welded with the battery shell (100).
8. The battery according to claim 7, wherein the third connecting plate (901) is provided with at least one second through hole (904), and a third inner groove (905) is respectively provided at both ends of the third connecting plate (901) in the length direction.
9. The battery according to claim 1, wherein the battery cover plate assembly comprises a cover plate main body (800), a negative electrode post (600) and an upper plastic (700), a mounting hole (801) is formed in the cover plate main body (800), and the negative electrode post (600) is arranged in the mounting hole (801);
a plurality of mounting grooves (802) arranged along the circumferential direction of the mounting hole (801) are formed in the upper end of the cover plate main body (800), and the mounting grooves (802) are communicated with the mounting hole (801); and a fixing boss (701) corresponding to the mounting groove (802) is arranged on the upper plastic (700).
10. The battery according to claim 9, wherein the negative electrode post (600) is circumferentially provided with an annular groove (601);
an annular boss (702) corresponding to the annular groove (601) is arranged on the upper plastic (700);
or a riveting block (140) is arranged on the cathode pole (600), and a riveting boss (141) matched with the annular groove (601) is arranged on the riveting block (140).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220831071.6U CN217009500U (en) | 2022-04-11 | 2022-04-11 | Battery with a battery cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220831071.6U CN217009500U (en) | 2022-04-11 | 2022-04-11 | Battery with a battery cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217009500U true CN217009500U (en) | 2022-07-19 |
Family
ID=82377181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220831071.6U Active CN217009500U (en) | 2022-04-11 | 2022-04-11 | Battery with a battery cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217009500U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024050944A1 (en) * | 2022-09-09 | 2024-03-14 | 湖北亿纬动力有限公司 | Current collector, battery cover, and battery structure |
-
2022
- 2022-04-11 CN CN202220831071.6U patent/CN217009500U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024050944A1 (en) * | 2022-09-09 | 2024-03-14 | 湖北亿纬动力有限公司 | Current collector, battery cover, and battery structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3748732B1 (en) | Secondary battery | |
| CN111987247B (en) | Secondary cell's top cap subassembly and secondary cell | |
| CN110880566A (en) | Battery with a battery cell | |
| US20230122520A1 (en) | Top cover assembly and battery | |
| CN114628866A (en) | High-energy-density cylindrical battery and assembly process thereof | |
| CN214411348U (en) | Cylindrical battery cover plate | |
| CN215816085U (en) | Battery cell and energy storage device | |
| CN217009500U (en) | Battery with a battery cell | |
| CN113871763B (en) | Cylindrical battery case, cylindrical battery, and method for mounting cylindrical battery | |
| CN115149082A (en) | Lithium ion battery and assembling method thereof | |
| CN218997011U (en) | Current collecting disc for battery cell and battery cell | |
| WO2024031988A1 (en) | Cylindrical battery | |
| CN219123400U (en) | Explosion-proof valve structure, cover plate assembly and battery | |
| CN219180634U (en) | Power battery cover plate and battery | |
| CN218334031U (en) | Battery cover plate and battery | |
| CN114628854A (en) | Cylindrical battery and method for manufacturing the same | |
| CN219832845U (en) | Battery and electric equipment with same | |
| CN219419248U (en) | Battery cell | |
| CN219106333U (en) | Connection structure, apron subassembly and battery | |
| CN218300162U (en) | Battery, battery module and electric equipment | |
| CN216980713U (en) | Battery cell and battery module | |
| CN220914520U (en) | Pole assembly for battery, cover plate assembly, battery and power utilization device | |
| CN218039361U (en) | Lithium ion battery | |
| CN219180726U (en) | Current collecting component and cylindrical battery | |
| CN220895646U (en) | Cylindrical aluminum shell battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |