CN218731056U - Positive current collector for lithium secondary battery - Google Patents
Positive current collector for lithium secondary battery Download PDFInfo
- Publication number
- CN218731056U CN218731056U CN202222485721.9U CN202222485721U CN218731056U CN 218731056 U CN218731056 U CN 218731056U CN 202222485721 U CN202222485721 U CN 202222485721U CN 218731056 U CN218731056 U CN 218731056U
- Authority
- CN
- China
- Prior art keywords
- plate
- apron
- pull rod
- rigid coupling
- cover 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.)
- Expired - Fee Related
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 238000004806 packaging method and process Methods 0.000 claims abstract description 20
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 51
- 229910052759 nickel Inorganic materials 0.000 claims description 22
- 230000008878 coupling Effects 0.000 claims description 16
- 238000010168 coupling process Methods 0.000 claims description 16
- 238000005859 coupling reaction Methods 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 15
- 239000012212 insulator Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 2
- 229910001416 lithium ion Inorganic materials 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 238000005538 encapsulation Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 4
- 239000003610 charcoal Substances 0.000 description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 230000006378 damage Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- SOZVEOGRIFZGRO-UHFFFAOYSA-N [Li].ClS(Cl)=O Chemical compound [Li].ClS(Cl)=O SOZVEOGRIFZGRO-UHFFFAOYSA-N 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model belongs to the technical field of lithium secondary batteries, in particular to a positive current collector for a lithium secondary battery, which comprises an outer shell; a placing groove is formed in the outer shell, a sealing assembly is arranged in the outer shell, a cover plate is arranged in the placing groove, the sealing assembly comprises a packaging plate, the packaging plate is arranged at the top of the placing groove, and a sliding groove is formed in one side of the top end of the outer shell; through setting up the sliding tray in that the shell body is inside, can make the encapsulation board install in the sliding tray, through the pulling pull rod, make the pull rod drive the encapsulation board and remove to the sliding tray is inside, until the pull rod retracts behind the sliding tray completely, just can install the apron, afterwards through loosening the pull rod, make first spring drive the encapsulation board reset, and will encapsulate the integrated circuit board on the apron, make the position of apron fix, through setting up first sealed pad and the sealed pad of second in apron both sides, make the shrouding both sides have sealed effect, thereby the untight problem of apron and shell body installation has been solved.
Description
Technical Field
The utility model relates to a lithium subcell technical field specifically is a lithium subcell is with anodal mass flow body.
Background
The lithium subcell, also known as lithium thionyl chloride cell, is a cell with lithium as the negative electrode and carbon as the positive electrode, and is widely used due to its low self-discharge rate, high energy density and safety.
The current collector mainly refers to a structure for collecting current, and the positive current collector is used for collecting current at the positive electrode of the battery, and mainly has the function of collecting current generated by active materials of the battery so as to form larger current for outputting outwards.
After the current collector for the conventional lithium secondary battery is installed, because the cover plate and the outer shell are usually installed in a directly buckled manner, the connection is not tight easily, and therefore, carbon bags in the battery are affected by air and are affected by moisture easily; therefore, a positive electrode current collector for a lithium subcell has been proposed to address the above problems.
SUMMERY OF THE UTILITY MODEL
In order to compensate the deficiency of the prior art, solve the problem that exists among the prior art, the utility model provides a lithium is anodal mass flow body for subcell.
The utility model provides a technical scheme that its technical problem adopted is: the utility model relates to a positive current collector for a lithium-ion battery, which comprises an outer shell; a placing groove is formed in the outer shell, a sealing assembly is arranged in the outer shell, and a cover plate is arranged in the placing groove;
the sealing component comprises a sealing plate, the sealing plate is arranged at the top of the placement groove, a sliding groove is formed in one side of the top end of the outer shell, the size of the sealing plate is smaller than that of the sliding groove, the sealing plate is connected in the sliding groove in a sliding mode, a first spring is fixedly connected to the inner wall of the sliding groove, the other end of the first spring is fixedly connected to one side of the sealing plate, a pull rod is fixedly connected to one side of the sealing plate, the diameter of the pull rod is smaller than that of the first spring, the first spring is sleeved on the outer wall of the pull rod, one end of the pull rod extends out of one side of the outer shell, a pull block is fixedly connected to one end of the pull rod extending out of the outer shell, the shape of the cover plate is consistent with the placement groove, a first sealing gasket is fixedly connected to one side of the cover plate, and a second sealing gasket is fixedly connected to the other side of the cover plate.
Preferably, apron center department rigid coupling has the insulator, the insulator material is the glass insulator, insulator center department rigid coupling has anodal utmost point post, apron one side rigid coupling has sealed nail, anodal utmost point post top and bottom stretch out the top and the below of apron, the one end rigid coupling that anodal utmost point post is located the apron bottom has the nickel pole, the nickel pole shape is the U-shaped, nickel pole bottom rigid coupling has the toper needle, the toper needle shape is conical, the toper needle sets up two sets ofly to be symmetric distribution in nickel pole both sides bottom.
Preferably, the bottom of the cover plate is fixedly connected with a second spring, the bottom of the second spring is fixedly connected with a pressing plate, and the second spring and the pressing plate are arranged in two groups and are symmetrically distributed at the bottom of the cover plate.
Preferably, an inner circular ring shell is fixedly connected to the inner portion of the outer shell and penetrates through the outer shell, and the radian of the inner circular ring shell is smaller than that of the nickel rod.
Preferably, a cooling plate is fixedly connected to one side of the shell body and made of aluminum, the cooling plates are arranged in two groups and are symmetrically distributed, and the shape of the cooling plate is fitted with that of the shell body.
Preferably, the apron shape is the rectangle, first sealed length of filling up is unanimous with the length of apron, the second is sealed to fill up unanimous with the width of apron, first sealed pad and second are sealed to fill up and are set up two sets ofly to be the both sides of symmetric distribution in apron.
The utility model discloses an useful part lies in:
1. the utility model discloses an at the inside sliding tray that sets up of shell body, can make the encapsulation board install in the sliding tray, through the pulling pull rod, make the pull rod drive the encapsulation board and remove to the sliding tray inside, after retracting the sliding tray completely until the pull rod, just can install the apron, afterwards through loosening the pull rod, make first spring drive the encapsulation board reset, and with the encapsulation integrated circuit board on the apron, make the position of apron fix, through setting up first sealed pad and the sealed pad of second in the apron both sides, make the shrouding both sides have sealed effect, thereby the untight problem of apron and shell body installation has been solved.
2. The utility model discloses a set up the clamp plate bottom the apron, can be convenient for fix the position of the anodal charcoal package in the standing groove through the clamp plate after the apron is installed, through setting up the second spring, can prevent that the clamp plate from extrudeing too violently to play the cushioning effect.
3. Through setting the nickel pole into the U-shaped, the area of contact of increase and charcoal package can be convenient for, through set up the toper needle in nickel pole bottom, can be convenient for the nickel pole insert the charcoal package in, reduce the destruction to anodal charcoal package structure.
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, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.
FIG. 1 is a schematic perspective view of a first embodiment;
FIG. 2 is a schematic cross-sectional view of a first embodiment;
FIG. 3 is an enlarged view of FIG. 2 at A;
FIG. 4 is a schematic cross-sectional perspective view of a second embodiment;
FIG. 5 is an enlarged view of FIG. 4 at B;
fig. 6 is a schematic structural view of a backing plate according to a second embodiment.
In the figure: 1. an outer housing; 2. a placement groove; 301. a sliding groove; 302. a first spring; 303. a package board; 304. a pull rod; 305. pulling the block; 306. a first gasket; 307. a second gasket; 4. a cover plate; 5. an insulator; 6. a positive pole column; 7. sealing the nail; 8. a nickel rod; 9. a tapered needle; 10. a second spring; 11. pressing a plate; 12. an inner annular housing; 13. a cooling plate; 14. a backing plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example one
Referring to fig. 1-5, a positive current collector for a lithium secondary battery includes an outer casing 1; a placing groove 2 is formed in the outer shell 1, a sealing assembly is arranged in the outer shell 1, and a cover plate 4 is arranged in the placing groove 2;
the sealing assembly comprises a packaging plate 303, the packaging plate 303 is arranged at the top of the placement groove 2, a sliding groove 301 is formed in one side of the top end of the outer shell 1, the size of the packaging plate 303 is smaller than that of the sliding groove 301, the packaging plate 303 is slidably connected in the sliding groove 301, a first spring 302 is fixedly connected to the inner wall of the sliding groove 301, the other end of the first spring 302 is fixedly connected to one side of the packaging plate 303, a pull rod 304 is fixedly connected to one side of the packaging plate 303, the diameter of the pull rod 304 is smaller than that of the first spring 302, the first spring 302 is sleeved on the outer wall of the pull rod 304, one end of the pull rod 304 extends out of one side of the outer shell 1, a pull block 305 is fixedly connected to one end of the pull rod 304 extending out of the outer shell 1, the shape of the cover plate 4 is consistent with the placement groove 2, a first sealing gasket 306 is fixedly connected to one side of the cover plate 4, and a second sealing gasket 307 is fixedly connected to the other side of the cover plate 4;
in operation, after the current collector for the li-ni battery is installed, because the cover plate 4 and the outer casing 1 are usually installed by direct fastening, the connection is easy to be loose, and therefore, the carbon packet in the battery is affected by air and is affected by moisture, in order to solve the problem that the cover plate 4 and the outer casing 1 are installed loosely, by pulling the pull rod 304, the pull rod 304 drives the packaging plate 303 fixedly connected at one side to move into the sliding groove 301, the pull block 305 arranged at one end of the pull rod 304 is beneficial to pulling the pull rod 304, and simultaneously, the pull rod 304 is prevented from moving out of the sliding groove 301 towards the other side, after the packaging plate 303 completely enters the sliding groove 301, the cover plate 4 is installed in the placing groove 2 of the outer casing 1, and then the pull rod 304 is released, so that the packaging plate 303 moves towards the outside of the sliding groove 301 under the elastic force of the first spring 302, and the position of the cover plate 4 is fixed in the placing groove 2, and the first sealing gaskets 306 and the second sealing gaskets 307 arranged at two sides of the cover plate 4 can seal the gaps at two sides, thereby preventing the positive electrode in the placing groove 2 from moisture.
An insulator 5 is fixedly connected to the center of the cover plate 4, the insulator 5 is made of a glass insulator, an anode post 6 is fixedly connected to the center of the insulator 5, a sealing nail 7 is fixedly connected to one side of the cover plate 4, the top and the bottom of the anode post 6 extend out of the upper portion and the lower portion of the cover plate 4, a nickel rod 8 is fixedly connected to one end, located at the bottom of the cover plate 4, of the anode post 6, the nickel rod 8 is U-shaped, a conical needle 9 is fixedly connected to the bottom of the nickel rod 8, the conical needle 9 is conical, and the conical needles 9 are arranged in two groups and symmetrically distributed at the bottoms of two sides of the nickel rod 8;
the during operation can prevent through setting up insulator 5 that current transmission from to apron 4, through setting up the leakproofness in the steerable standing groove 2 of airtight nail, through setting nickel pole 8 to the U-shaped, can be favorable to the area of contact of increase with anodal charcoal package to improve conduction efficiency, through set up toper needle 9 in nickel pole 8 bottom, when can making nickel pole 8 inject anodal charcoal package, reduce the destruction to anodal charcoal package structure.
A second spring 10 is fixedly connected to the bottom of the cover plate 4, a pressing plate 11 is fixedly connected to the bottom of the second spring 10, and the second springs 10 and the pressing plate 11 are arranged in two groups and symmetrically distributed at the bottom of the cover plate 4;
during operation, when installing apron 4, the accessible clamp plate 11 is fixed the position of anodal charcoal package, and second spring 10 can provide the cushioning effect for clamp plate 11 simultaneously, prevents to extrude the punishment excessively to anodal charcoal package.
An inner circular ring shell 12 is fixedly connected inside the outer shell 1, the inner circular ring shell 12 penetrates through the outer shell 1, and the radian of the inner circular ring shell 12 is smaller than that of the nickel rod 8;
when the battery works, the battery is suitable for specific occasions with radians due to the circular shape of the inner circular ring shell 12, and the radians of the inner circular ring shell 12 are smaller than those of the nickel rods 8, so that the use of the U-shaped nickel rods 8 cannot be influenced by the inner circular ring shell 12.
A cooling plate 13 is fixedly connected to one side of the outer shell 1, the cooling plate 13 is made of aluminum, two groups of cooling plates 13 are arranged and symmetrically distributed, and the shapes of the cooling plates 13 are fitted with the shape of the outer shell 1;
during operation, cooling plate 13 can play the cooling effect to the part in outer casing 1, prevents that operating temperature from too high causing the potential safety hazard.
The cover plate 4 is rectangular, the length of the first sealing gasket 306 is consistent with that of the cover plate 4, the width of the second sealing gasket 307 is consistent with that of the cover plate 4, and the first sealing gasket 306 and the second sealing gasket 307 are arranged in two groups and are symmetrically distributed on two sides of the cover plate 4;
during operation, the two sets of first sealing gaskets 306 and the second sealing gaskets 307 are mutually matched to enable two sides of the cover plate 4 to have sealing effect, and gaps are prevented from being generated on the side face of the cover plate 4 after installation.
Example two
Referring to fig. 6, in a first comparative example, as another embodiment of the present invention, a backing plate 14 is fixedly connected to the bottom of the outer shell 1, and the backing plate 14 is made of sponge; in operation, the sponge cushion plate 14 can provide a cushioning effect to the bottom of the outer casing 1.
The working principle is that in order to solve the problem that the cover plate 4 is not tightly installed with the outer shell 1, the pull rod 304 is pulled to drive the packaging plate 303 fixedly connected to one side to move into the sliding groove 301, the pull block 305 arranged at one end of the pull rod 304 is beneficial to pulling the pull rod 304 and simultaneously prevent the pull rod 304 from moving to the other side and being separated from the sliding groove 301, after the packaging plate 303 completely enters the sliding groove 301, the cover plate 4 is installed in the placing groove 2 of the outer shell 1, meanwhile, the position of the anode carbon packet can be fixed through the pressing plate 11, meanwhile, the second spring 10 can provide a buffering effect for the pressing plate 11 and prevent the anode carbon packet from being excessively extruded, the two groups of first sealing gaskets 306 and the second sealing gaskets 307 are matched with each other to enable the two sides of the cover plate 4 to have a sealing effect, so that the cover plate 4 is prevented from generating gaps on the side surface after installation, then the pull rod 304 is loosened, so that the packaging plate 303 moves to the outside of the sliding groove 301 under the elasticity of the first spring 302 and fixes the position of the cover plate 4 in the placing groove 2, and the gaps of the anode packet 2 are prevented from being wetted;
can prevent that current transmission from lapping 4 through setting up insulator 5 on, through setting up the leakproofness in the steerable standing groove 2 of airtight nail, through setting nickel pole 8 into the U-shaped, can be favorable to the area of contact of increase with anodal charcoal package, thereby improve conduction efficiency, through set up taper needle 9 in nickel pole 8 bottom, can make nickel pole 8 inject when anodal charcoal package, reduce the destruction to anodal charcoal package structure, the circular shape of interior ring casing 12 can make this battery be applicable to some specific occasions that have the radian, and the radian of interior ring casing 12 is less than nickel pole 8's radian, can make interior ring casing 12 can not influence the use of the nickel pole 8 of U-shaped, cooling plate 13 can play the cooling effect to the part in the outer casing 1, prevent that operating temperature from excessively causing the potential safety hazard.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.
Claims (6)
1. A positive current collector for a lithium secondary battery is characterized in that: comprises an outer shell (1); a placing groove (2) is formed in the outer shell (1), a sealing assembly is arranged in the outer shell (1), and a cover plate (4) is arranged in the placing groove (2);
sealing assembly includes packaging plate (303), packaging plate (303) set up at standing groove (2) top, sliding tray (301) have been seted up to shell body (1) top one side, packaging plate (303) size is less than sliding tray (301), packaging plate (303) sliding connection is in sliding tray (301), sliding tray (301) inner wall rigid coupling has first spring (302), the other end rigid coupling of first spring (302) is in packaging plate (303) one side, packaging plate (303) one side rigid coupling has pull rod (304), pull rod (304) diameter is less than first spring (302), pull rod (304) outer wall is established to first spring (302) cover, pull rod (304) one end is stretched out shell body (1) one side, the one end rigid coupling that pull rod (304) stretched out shell body (1) has pull block (305), apron (4) shape is unanimous with standing groove (2), apron (4) one side has first sealed (306), apron (4) rigid coupling has the sealed pad (307) of second.
2. The positive electrode current collector for a lithium secondary battery as claimed in claim 1, wherein: apron (4) center department rigid coupling has insulator (5), insulator (5) material is the glass insulator, insulator (5) center department rigid coupling has anodal utmost point post (6), apron (4) one side rigid coupling has sealed nail (7), anodal utmost point post (6) top and bottom stretch out the top and the below of apron (4), the one end rigid coupling that anodal utmost point post (6) are located apron (4) bottom has nickel pole (8), nickel pole (8) shape is the U-shaped, nickel pole (8) bottom rigid coupling has conical needle (9), conical needle (9) shape is conical, conical needle (9) set up two sets ofly to be symmetric distribution in nickel pole (8) both sides bottom.
3. The positive electrode current collector for a lithium-ion battery as defined in claim 2, wherein: the bottom of the cover plate (4) is fixedly connected with a second spring (10), the bottom of the second spring (10) is fixedly connected with a pressing plate (11), and the second spring (10) and the pressing plate (11) are arranged in two groups and are symmetrically distributed at the bottom of the cover plate (4).
4. The positive electrode current collector for a lithium secondary battery as claimed in claim 3, wherein: the inside rigid coupling of shell body (1) has interior ring casing (12), interior ring casing (12) run through shell body (1), the radian of interior ring casing (12) is less than the radian of nickel pole (8).
5. The positive electrode current collector for a lithium secondary battery as claimed in claim 4, wherein: the utility model discloses a temperature-reducing plate, including shell body (1), cooling plate (13) material are aluminium, cooling plate (13) set up two sets ofly to be the symmetric distribution, cooling plate (13) shape and shell body (1) shape are laminated mutually.
6. The positive electrode current collector for a lithium secondary battery as claimed in claim 5, wherein: the shape of the cover plate (4) is rectangular, the length of the first sealing gasket (306) is consistent with that of the cover plate (4), the width of the second sealing gasket (307) is consistent with that of the cover plate (4), and the first sealing gasket (306) and the second sealing gasket (307) are arranged in two groups and are symmetrically distributed on two sides of the cover plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222485721.9U CN218731056U (en) | 2022-09-20 | 2022-09-20 | Positive current collector for lithium secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222485721.9U CN218731056U (en) | 2022-09-20 | 2022-09-20 | Positive current collector for lithium secondary battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218731056U true CN218731056U (en) | 2023-03-24 |
Family
ID=85635523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222485721.9U Expired - Fee Related CN218731056U (en) | 2022-09-20 | 2022-09-20 | Positive current collector for lithium secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218731056U (en) |
-
2022
- 2022-09-20 CN CN202222485721.9U patent/CN218731056U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20230324 |