CN214542374U - Button cell with but viscidity sealing glue layer subassembly block - Google Patents
Button cell with but viscidity sealing glue layer subassembly block Download PDFInfo
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- CN214542374U CN214542374U CN202120704525.9U CN202120704525U CN214542374U CN 214542374 U CN214542374 U CN 214542374U CN 202120704525 U CN202120704525 U CN 202120704525U CN 214542374 U CN214542374 U CN 214542374U
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- 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
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Abstract
The embodiment of the application relates to the technical field of button batteries, and discloses a button battery with a cap capable of sealing adhesive layer components in a viscous mode, which comprises a roll core component, a negative electrode cap and a positive electrode shell, wherein the roll core component is located in the positive electrode shell, the positive electrode shell is connected with the negative electrode cap, the negative electrode cap comprises a negative electrode metal sheet, a spacer and a positive electrode sealing metal sheet, the positive electrode sealing metal sheet is connected with the positive electrode shell, the spacer is connected with the positive electrode sealing metal sheet, and the negative electrode metal sheet is connected with the spacer The liquid leakage phenomenon is avoided, so that the service life of the button cell is prolonged, and the waste of the button cell is reduced.
Description
Technical Field
The embodiment of the application relates to the technical field of button batteries, in particular to a button battery with a cap capable of sealing an adhesive layer assembly in a viscous mode.
Background
Button cells are also called button cells, and refer to cells with the overall dimension like a small button, generally speaking, the diameter is larger, the thickness is thinner (compared with the cylindrical cells such as the cells of No. 5 AA on the market), button cells are classified from the aspect of the appearance, and the same corresponding cells are classified into cylindrical cells, square cells and special-shaped cells.
The button cell shell consists of a positive electrode shell, a negative electrode shell and a sealing ring. The interior is composed of anode material, cathode material, electrolyte and the like. The positive electrode shell, the negative electrode shell and the sealing ring form a closed sealing structure, and the moisture in the air can generate a chemical reaction for decomposing the positive electrode material and the negative electrode material due to the extreme sensitivity of the positive electrode material, the negative electrode material and the electrolyte, so that the battery is inflated, high in internal resistance and ineffective. The electrolyte plays a role in conducting electrons between the anode and the cathode in the battery, and the conduction capability is reduced or fails due to the too little electrolyte, so that the internal resistance is high, and the electricity cannot be charged. Excessive moisture, electrolyte deterioration, short circuit, high temperature and large amount of gas generation. Electrolyte in the battery is evaporated, the battery which is contacted with external air and the positive and negative electrode materials are contacted with the external air to form destructiveness, and the sealed and reliable shell is important to the service life, the performance and the quality of the battery.
The traditional button cell adopts single-process riveting sealing to finish encapsulation, has no function of paying mistakes, has single sealing surface and is easy to leak gas and liquid, and the sealing of the cell is very simple, so that the service life is shortened, and the service environment is limited.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
To prior art's not enough, this application embodiment provides a button cell with can viscidity sealant layer subassembly block, but possesses to have viscidity sealed glue, has better sealed to button cell inside, advantages such as difficult gas leakage weeping for there is button cell gas leakage, weeping after the encapsulation finished product among the solution prior art. But also affects the product performance, quality and safety.
(II) technical scheme
The embodiment of the application provides the following technical scheme: a button cell with a cap capable of sealing an adhesive layer component comprises a roll core component, a negative cap and a positive shell, wherein the roll core component is positioned in the positive shell, and the positive shell is connected with the negative cap;
the negative electrode cap comprises a negative electrode metal sheet, a spacer and a positive electrode sealing metal sheet, the positive electrode sealing metal sheet is connected with the positive electrode shell, the spacer is connected with the positive electrode sealing metal sheet, and the negative electrode metal sheet is connected with the spacer.
But through the button cell who provides with viscidity sealant layer subassembly block of this application embodiment, can carry out fine sealing to button cell, for ordinary button cell's packaging mode, the mode that this application embodiment provided can be fine sealed, and can not cause gas leakage, weeping phenomenon.
In a possible implementation mode, the bottom of the isolating sheet is arranged obliquely, the top of the positive electrode sealing metal sheet is provided with an arc-shaped groove, and the isolating sheet is located in the arc-shaped groove.
Through setting up the arc wall, can form the connection to arc wall and spacing block, and be convenient for fix a position, the bottom slope setting of division board facilitates the use sealed glue and fixes.
In one possible embodiment, the positive electrode sealing metal sheet has an annular groove, and the positive electrode case has a stopper ring, and the annular groove is connected to the stopper ring.
Form the joint through spacing ring and ring channel, can be more stable when sealing up, and be convenient for to the sealed in the positive pole casing for the anodal sealed sheetmetal is more stable with being connected of positive pole casing.
In one possible embodiment, the winding core assembly comprises a first electrode assembly, a second electrode assembly and a separator for separating the first electrode assembly from the second electrode assembly, the first electrode assembly, the separator and the second electrode assembly are sequentially stacked and wound into a winding core, and a cavity is formed in the center of the winding core.
In one possible embodiment, the first electrode assembly includes a first pole piece, a first tab and a first nickel strap, one end of the first pole piece has an empty foil portion, the first tab is connected with the first pole piece, the first nickel strap is connected with the first tab, the second electrode assembly includes a second pole piece, a second tab and a second nickel strap, one end of the second pole piece has an empty foil portion, the second tab is connected with the second pole piece, and the second nickel strap is connected with the second pole piece.
In a possible embodiment, the first nickel strap first tab is disposed perpendicular to the first pole piece, the second tab is disposed perpendicular to the second pole piece, and the first tab is disposed parallel to the second tab, and the first tab is opposite to the second tab.
In a possible embodiment, the first tab is located on one side of one of the openings of the axial cavity and partially covers the opening, and the second tab is located on one side of the other opening of the axial cavity.
Compared with the prior art, the embodiment of the application provides a button cell with but viscidity sealant layer subassembly block, possesses following beneficial effect:
1. the positive casing can be sealed by arranging the negative electrode cap in the embodiment of the application. The sealing performance of the button cell is improved, the button cell cannot be easily separated, the sealing ring can be used for enabling the isolating piece and the positive electrode sealing metal sheet, the bottom edge of the isolating piece is obliquely arranged, sealing glue is convenient to use for sealing, the arc-shaped sealing metal sheet can be clamped with the positive electrode shell, and the connectivity of the positive electrode shell is improved.
2. But this application embodiment utilizes viscidity sealant layer subassembly block and casing and adopts laser welding technology to encapsulate, has promoted button cell's utilization space, has increased battery energy seal degree and reinforcing sealed effect to promote button cell's life, reduce the waste to button cell.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
Fig. 1 is a schematic diagram illustrating an overall structure of a button cell having a cap of an adhesive sealant assembly according to an embodiment of the present disclosure;
fig. 2 is an exploded view of a button cell having a cap of an adhesive sealant assembly according to an embodiment of the present disclosure;
fig. 3 is an exploded cross-sectional view of a button cell having a cap of an adhesive sealant assembly according to an embodiment of the present disclosure;
fig. 4 is a cross-sectional view of a negative electrode cap of a button cell having a cap of an adhesive sealant assembly according to an embodiment of the disclosure;
fig. 5 is a schematic structural diagram of a winding core assembly of a button cell having a cap of an adhesive sealant assembly according to an embodiment of the present disclosure.
Fig. 6 is a schematic view of a winding core assembly of a button cell with a cap of an adhesive sealant assembly according to an embodiment of the present disclosure.
Wherein: the structure comprises a 1-core assembly, a 10-core assembly, a 11-first electrode assembly, a 12-isolation layer, a 13-second electrode assembly, a 2-cavity body, a 111-first pole piece, a 112-first pole lug, a 113-first nickel strip, a 131-second pole piece, a 132-second pole lug, a 133-second nickel strip, a 4-negative pole cap, a 401-negative pole metal sheet, a 402-isolation sheet, a 403-positive pole sealing metal sheet and a 5-positive pole shell.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the present application embodiments and are not to be construed as limiting the present application embodiments.
In the description of the embodiments of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships that are based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of describing the embodiments of the present application and for simplicity of description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the embodiments of the present application.
In the embodiments of the present application, unless otherwise specifically stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.
As shown in fig. 1-4, the present application provides a button cell with a cap of a viscous sealant assembly, which includes a winding core 10 assembly 1, a negative electrode cap 4 and a positive electrode can 5, the winding core 10 assembly 1 is located in the positive electrode can 5, the positive electrode can 5 is connected to the negative electrode cap 4, the negative electrode cap 4 includes a negative electrode metal sheet 401, a spacer 402, a positive electrode sealing metal sheet 403 and a sealing ring 404, the positive electrode sealing metal sheet 403 is connected to the positive electrode can 5, the spacer 402 is connected to the positive electrode sealing metal sheet 403, the sealing ring 404 is located between the spacer 402 and the positive electrode sealing metal sheet 403, and the negative electrode metal sheet 401 is connected to the spacer 402.
But through the button cell who provides with viscidity sealant layer subassembly block of this application embodiment, can carry out fine sealing to button cell, for ordinary button cell's packaging mode, the mode that this application embodiment provided can be fine sealed, and can not cause gas leakage, weeping phenomenon.
Specifically, as shown in fig. 4, in one possible embodiment, the bottom of the spacer 402 is inclined, the top of the positive electrode sealing metal sheet 403 has an arc-shaped groove, and the spacer 402 is located in the arc-shaped groove.
Through setting up the arc wall, can form the connection to arc wall and spacing block 402, and be convenient for fix a position, the bottom slope setting of division board facilitates the use sealed glue and fixes.
Specifically, as shown in fig. 3, in one possible embodiment, the positive electrode sealing metal sheet 403 has an annular groove, and the positive electrode case 5 has a stopper ring, and the annular groove is connected to the stopper ring.
Form the joint through spacing ring and ring channel, can be more stable when sealing up, and be convenient for to the sealed in the positive pole casing 5 for positive pole seal sheetmetal 403 is more stable with being connected of positive pole casing 5.
In one possible embodiment, as shown in fig. 5-6, the winding core 10 assembly 1 comprises a first electrode assembly 11, a second electrode assembly 13, and a separator for separating the first electrode assembly 11 from the second electrode assembly 13, wherein the first electrode assembly 11, the separator, and the second electrode assembly 13 are sequentially stacked and wound into the winding core 10, and the center of the winding core 10 forms the cavity 2.
Specifically, as shown in fig. 5, in one possible embodiment, the first electrode assembly 11 includes a first pole piece 111, a first tab 112 and a first nickel strap 113, one end of the first pole piece 111 has a blank foil portion, the first tab 112 is connected to the first pole piece 111, the first nickel strap 113 is connected to the first tab 112, the second electrode assembly 13 includes a second pole piece 131, a second pole piece 132 and a second nickel strap 133, one end of the second pole piece 131 has a blank foil portion, the second pole piece 132 is connected to the second pole piece 131, and the second nickel strap 133 is connected to the second pole piece 132.
Specifically, as shown in fig. 5, in one possible embodiment, the first nickel strap 113 has a first tab 112 disposed perpendicular to the first pole piece 111, a second tab 132 disposed perpendicular to the second pole piece 131, and the first tab 112 is disposed parallel to the second tab 132, and the first tab 112 is opposite to the second tab 132.
In particular, as shown in fig. 5, in one possible embodiment, the first tab 112 is located on one side of one of the openings of the axial cavity 2, and the first tab 112 partially covers the opening, and the second tab 132 is located on one side of the other opening of the axial cavity 2.
In addition, the embodiment of the application also provides a manufacturing method of the button cell with the cap of the viscous sealant assembly, the negative cap 4 assembly comprises a negative metal sheet 401, a positive sealing metal sheet 403 and a separator for separating the negative metal sheet 401 from the positive sealing metal sheet 403, and the welding metal sheet, the positive sealing metal sheet 403 and the separator for separating the negative metal sheet 401 from the positive sealing metal sheet 403 are combined together to form a negative cap 4 structure through a special heat sealing process.
The negative electrode metal sheet 401 may be made of stainless steel or nickel-plated metal, and further, the negative electrode metal sheet 401 may be round or square or other geometric shapes, and the metal sheet needs to be subjected to oxidation treatment by a special process.
The metal sheet 403 for sealing with the positive electrode can be made of stainless steel or nickel-plated metal, and is further circular with the positive electrode metal sheet 403 and provided with a certain edge sealing step, the edge sealing step of the assembly is further used for laser welding with the positive electrode shell 5, the center of the metal piece is further hollow and circular, and the metal piece needs to be subjected to oxidation treatment of a special process.
A separator for keeping apart negative pole sheetmetal 401 and anodal sealed sheetmetal 403 is soft packet of lithium battery utmost point ear and glues, and further this glue film can be soft packet of lithium battery utmost point ear and glue used white glue, black glue or yellow glue, and further this sealed glue film central point puts for the round hole shape, and this round hole diameter is less than the round hole diameter of subassembly, novel button cell's negative pole block 4 and anodal casing 5's sealing method: the negative electrode cap 4 and the positive electrode shell 5 are sealed through a laser welding process to form a button cell shell.
The manufacturing method of the novel button battery comprises the following steps: the first electrode spot welding of the finished roll core 10 component 1 is in the metal sheet round hole of the negative electrode cap 4, the second electrode spot welding is on the inner wall of the positive shell 5, then electrolyte is injected after vacuum baking, the negative electrode cap 4 is pressed on the positive shell 5, laser welding is carried out for sealing, and the new button cell is obtained by changing into component capacity.
Although embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the embodiments of the application, the scope of which is defined in the appended claims and their equivalents.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. 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 application.
Claims (7)
1. The utility model provides a button cell with but viscidity sealant layer subassembly block, contains roll core (10) subassembly (1), negative pole block (4) and positive pole casing (5), its characterized in that: the winding core (10) assembly (1) is positioned on the positive shell (5), and the positive shell (5) is connected with the negative cap (4);
the negative electrode cap (4) comprises a negative electrode metal sheet (401), a spacer (402) and a positive electrode sealing metal sheet (403), the positive electrode sealing metal sheet (403) is connected with the positive electrode shell (5), the spacer (402) is connected with the positive electrode sealing metal sheet (403), and the negative electrode metal sheet (401) is connected with the spacer (402).
2. The button cell with the cap of the adhesive sealant layer assembly according to claim 1, wherein: the bottom of the spacer (402) is obliquely arranged, the top of the positive electrode sealing metal sheet (403) is provided with an arc-shaped groove, and the spacer (402) is positioned in the arc-shaped groove.
3. The button cell with the cap of the adhesive sealant layer assembly according to claim 1, wherein: the positive electrode sealing metal sheet (403) is provided with an annular groove, the positive electrode shell (5) is provided with a limiting ring, and the annular groove is connected with the limiting ring.
4. The button cell with the cap of the adhesive sealant layer assembly according to claim 1, wherein: the winding core (10) assembly (1) comprises a first electrode assembly (11), a second electrode assembly (13) and a separator for separating the first electrode assembly (11) from the second electrode assembly (13), the first electrode assembly (11), the separator and the second electrode assembly (13) are sequentially stacked and wound into a winding core (10), and a cavity (2) is formed in the center of the winding core (10).
5. The button cell with the cap of the adhesive sealant layer assembly according to claim 4, wherein: first electrode subassembly (11) contain first pole piece (111), first utmost point ear (112) and first nickel strap (113), the one end of first pole piece (111) has empty foil portion, first utmost point ear (112) with first pole piece (111) are connected, first nickel strap (113) with first utmost point ear (112) are connected, second electrode subassembly (13) contain second pole piece (131), second utmost point ear (132) and second nickel strap (133), the one end of second pole piece (131) has empty foil portion, second utmost point ear (132) with second pole piece (131) are connected, second nickel strap (133) with second utmost point ear (132) are connected.
6. The button cell with the cap of the adhesive sealant layer assembly according to claim 5, wherein: first utmost point ear (112) of first nickel strap (113) with first pole piece (111) sets up perpendicularly, second utmost point ear (132) with second pole piece (131) set up perpendicularly, just first utmost point ear (112) with second utmost point ear (132) parallel arrangement, just first utmost point ear (112) with second utmost point ear (132) top is opposite.
7. The button cell with the cap of the adhesive sealant layer assembly according to claim 6, wherein: the first pole lug (112) is positioned on one side of one opening of the axial cavity (2), the first pole lug (112) partially covers the opening, and the second pole lug (132) is positioned on one side of the other opening of the axial cavity (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120704525.9U CN214542374U (en) | 2021-04-07 | 2021-04-07 | Button cell with but viscidity sealing glue layer subassembly block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120704525.9U CN214542374U (en) | 2021-04-07 | 2021-04-07 | Button cell with but viscidity sealing glue layer subassembly block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214542374U true CN214542374U (en) | 2021-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120704525.9U Active CN214542374U (en) | 2021-04-07 | 2021-04-07 | Button cell with but viscidity sealing glue layer subassembly block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214542374U (en) |
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2021
- 2021-04-07 CN CN202120704525.9U patent/CN214542374U/en active Active
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