CN110336065A - Button-type battery and its manufacturing method - Google Patents
Button-type battery and its manufacturing method Download PDFInfo
- Publication number
- CN110336065A CN110336065A CN201910403375.5A CN201910403375A CN110336065A CN 110336065 A CN110336065 A CN 110336065A CN 201910403375 A CN201910403375 A CN 201910403375A CN 110336065 A CN110336065 A CN 110336065A
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- battery
- tab
- cell cup
- roll core
- layer
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000003466 welding Methods 0.000 claims abstract description 111
- 238000007789 sealing Methods 0.000 claims abstract description 50
- 238000005476 soldering Methods 0.000 claims description 50
- 230000005611 electricity Effects 0.000 claims description 9
- 239000000565 sealant Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 7
- 230000015572 biosynthetic process Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005538 encapsulation Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 241000519996 Teucrium chamaedrys Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/109—Primary casings; Jackets or wrappings characterised by their shape or physical structure of button or coin shape
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0422—Cells or battery with cylindrical casing
- H01M10/0427—Button cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
- H01M50/153—Lids or covers characterised by their shape for button or coin cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
- H01M50/169—Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
- H01M50/184—Sealing members characterised by their shape or structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
- H01M50/186—Sealing members characterised by the disposition of the sealing members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/536—Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Button-type battery and its manufacturing method of the invention passes through setting package assembling and battery roll core.In actual application process, cell cup and battery cover play the role of protection, and sealing rubber ring plays sealing waterproof；Furthermore, when needing to weld tab, position the position of tab, resistance welding operation is carried out to cell cup and/or battery cover, so that battery roll core forms center layer in the tab and cell cup of center position and/or the contact portion electric resistance welding of the battery cover, the tab at marginal position and cell cup of battery roll core and/or the contact portion electric resistance welding of battery cover form edge layer, the presence of center layer and edge layer can prevent tab, and there is a phenomenon where " fried welderings ", the welding stability of tab significantly, compared to the mode of traditional laser welding, Welding Safety coefficient is higher, there is no the risks that laser directly punctures cell cup or battery cover.
Description
Technical field
The present invention relates to battery technology fields, more particularly to a kind of button-type battery and its manufacturing method.
Background technique
Currently, battery, which refers to, fills electrolyte solution and metal electrode to generate the cup of electric current, slot or other containers or compound
Chemical energy can be converted to the device of electric energy by the segment space of container.Point with anode, cathode.With the development of science and technology electric
Pond refers to the midget plant that can be produced electricl energy, such as solar battery.The performance parameter of battery mainly has electromotive force, capacity, than energy
Amount and resistance.Utilize the battery as energy source, available have a burning voltage, stabling current, long-time stable power supply, by
The external world influences the electric current of very little, and battery structure is simple, and easy to carry, charge and discharge are easy to operation, not by outside climatic
Stable and reliable for performance with the influence of temperature, the various aspects performance in modern society's life has great role.
Existing battery structure, especially for button-type battery structure, button-type battery structure includes battery cover, battery case
And battery roll core, after being assembled to button-type battery structure, it is also necessary to the tab and battery cover and battery of battery roll core
Shell welding operation.But existing tab welding mode, most effects using laser welding, utilizes laser alignment battery
The center position of lid or battery case, laser are issuing laser in a flash, tab and battery cover or battery case are being welded
Together.Although can quickly and efficiently be welded to tab by the way of laser welding, but lacked there are some
It falls into.First, the welding manner of laser welding by be single-point welding in the way of, before formally carrying out laser welding, it is fixed to need
The tab position of position battery roll core, if " fried weldering " phenomenon can occur for tab to the position position inaccurate of tab, i.e. tab does not have
There are welding truly, connective stability with battery cover or battery case completion poor；Second, the mode of laser welding, by
In laser welding mode be welding manner from outside to inside, if, to the position inaccurate of tab, laser exists in soldering polar ear
Issue laser in a flash, laser is easy battery cover or battery case directly to puncture, and laser is emitted directly toward to battery roll core
Portion, there are sizable security risks.
Summary of the invention
The purpose of the present invention is overcoming shortcoming in the prior art, providing one kind can prevent tab from " fried weldering " occurs
Phenomenon, button-type battery and its manufacturing method that welding stability is strong and that Welding Safety coefficient is high.
The purpose of the present invention is achieved through the following technical solutions:
A kind of button-type battery, comprising:
Package assembling, the package assembling include cell cup, sealing rubber ring and battery cover, and the sealing rubber ring is placed on institute
It states in cell cup, the battery cover is placed in the sealing rubber ring, and the battery cover holds the sealing rubber ring for pushing up, so that
The sealing rubber ring and the inner sidewall of the cell cup are in close contact, and the cell cup and the battery cover surround in battery jointly
Layer is provided on chamber, the cell cup and/or the battery cover；And
Battery roll core, the battery roll core are set in the battery compartment, are provided with tab on the battery roll core；
Wherein, the layer is by the tab of the battery roll core and the cell cup and/or the contact portion of the battery cover
Sub-resistance weldering is formed.
In a wherein embodiment, the layer includes center layer and edge layer, and the center layer is by institute
Battery roll core is stated in the tab of center position and the cell cup and/or the contact portion electric resistance welding institute shape of the battery cover
At, the edge layer by the battery roll core in tab and the cell cup of marginal position and the connecing for/battery cover
The weldering of contact portion sub-resistance is formed.
In a wherein embodiment, the center layer is by the battery roll core in the tab of center position and institute
The contact portion electric resistance welding for stating cell cup is formed, the edge layer by the battery roll core in marginal position tab with
The contact portion electric resistance welding of the cell cup is formed.
In a wherein embodiment, the center layer is by the battery roll core in the tab of center position and institute
The contact portion electric resistance welding for stating battery cover is formed, the edge layer by the battery roll core in marginal position tab with
The contact portion electric resistance welding of the battery cover is formed.
In a wherein embodiment, the center layer is by the battery roll core in the tab of center position and institute
The contact portion electric resistance welding for stating cell cup and the battery cover is formed, and the edge layer is by the battery roll core in margin location
The tab at the place of setting and the contact portion electric resistance welding of the cell cup and the battery cover are formed.
In a wherein embodiment, the center layer and the edge layer are in round point shape.
In a wherein embodiment, the edge layer is annular in shape.
In a wherein embodiment, the edge layer is in the form of annular discs.
In a wherein embodiment, the edge layer includes multiple fan blades layers, and each fan blades layer is in
Fan shape.
A kind of manufacturing method of button-type battery, comprising the following steps:
Step S01, the package assembling and battery roll core for manufacturing the button-type battery are provided, wherein the encapsulation
Component includes cell cup, sealing rubber ring and battery cover；
Step S02, sealing rubber ring is placed in the cell cup, and the battery roll core is placed in the cell cup
It is interior, and it is placed in the battery cover in the sealing rubber ring, the battery caping holds the sealing rubber ring, so that the sealing
Cushion rubber and the inner sidewall of the cell cup are in close contact, at this point, the cell cup and the battery cover surround battery compartment jointly,
The battery roll core is located in the battery compartment；
Step S03, the tab position for positioning the battery roll core, using crosspointer soldering tip to the cell cup and/or described
Battery cover carries out resistance welding operation；
Wherein, the tab of the battery roll core and the cell cup and/or the contact portion electric resistance welding shape of the battery cover
At layer.
The present invention compared with the prior art the advantages of and have the beneficial effect that:
Button-type battery and its manufacturing method of the invention passes through setting package assembling and battery roll core.It is answered actual
With in the process, cell cup and battery cover play the role of protection, and sealing rubber ring plays sealing waterproof；In addition, when needing
When welding to tab, the position of tab is positioned, electrical welding operation is carried out to cell cup and/or battery cover, so that battery winding
Core forms center layer, battery in the tab and cell cup of center position and/or the contact portion electric resistance welding of the battery cover
The tab at marginal position and cell cup of core and/or the contact portion electric resistance welding of battery cover form edge layer, center weldering
The presence of layer and edge layer can prevent tab, and there is a phenomenon where " fried welderings ", the significantly welding stability of tab, compared to biography
The mode of the laser welding of system, Welding Safety coefficient is higher, and there is no the risks that laser directly punctures cell cup or battery cover.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the step flow chart of the button-type battery manufacturing method in one embodiment of the present invention；
Fig. 2 is the schematic diagram of internal structure of the button-type battery in one embodiment of the present invention；
Being used cooperatively when Fig. 3 is the electric resistance welding of the button-type battery and crosspointer soldering tip in one embodiment of the present invention is shown
It is intended to；
Being used cooperatively when Fig. 4 is the electric resistance welding of the button-type battery and crosspointer soldering tip in another embodiment of the present invention
Schematic diagram；
Fig. 5 is the structural schematic diagram of the center layer and edge layer in one embodiment of the present invention；
Fig. 6 is the structural schematic diagram of the center layer and edge layer in another embodiment of the present invention；
Fig. 7 is the structural schematic diagram of the center layer and edge layer in another embodiment of the invention.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give better embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose of providing these embodiments is that making to understand more the disclosure
Add thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more
Any and all combinations of relevant listed item.
Existing tab welding mode, most effects using laser welding, using laser alignment battery cover or
The center position of person's battery case, laser are issuing laser in a flash, and tab and battery cover or battery case are welded on one
It rises.Although can quickly and efficiently be welded to tab by the way of laser welding, but there are some defects.The
One, the welding manner of laser welding by be single-point welding in the way of, before formally carrying out laser welding, need to position battery
The tab position of core, if " fried weldering " phenomenon can occur for tab to the position position inaccurate of tab, i.e., tab not with electricity
Chi Gai or battery case complete welding truly, and connective stability is poor；Second, the mode of laser welding, due to laser
Welding manner is welding manner from outside to inside, if, to the position inaccurate of tab, laser swashs in sending in soldering polar ear
In a flash, laser is easy battery cover or battery case directly to puncture to light, and laser is emitted directly toward to battery roll core, is existed
Sizable security risk.
Therefore, based on the above issues, also referring to Fig. 1 and Fig. 2, this application discloses a kind of manufactures of button-type battery
Method the following steps are included:
Step S01, the package assembling 100 and battery roll core 200 for manufacturing button-type battery 10 are provided, wherein encapsulation
Component 100 includes cell cup 110, sealing rubber ring 120 and battery cover 130.
It is thus desirable to explanation, package assembling 100 plays the role of encapsulation and protection battery roll core 200；Battery roll core
200 play the role of providing voltage, and output voltage is into external electric equipment.
Step S02, sealing rubber ring 120 is placed in cell cup 110, and battery roll core 200 is placed in cell cup 110
It is interior, and it is placed in battery cover 130 in sealing rubber ring 120, sealing rubber ring 120 is held on the top of battery cover 130, so that sealing rubber ring 120
It is in close contact with the inner sidewall of cell cup 110, at this point, cell cup 110 and battery cover 130 surround battery compartment, battery winding jointly
Core 200 is located in battery compartment.
It is thus desirable to which explanation, when assembling button-type battery 10, is placed on cell cup 110 for sealing rubber ring 120
It is interior, and battery roll core 200 is placed in cell cup 110, and be placed in battery cover 130 in sealing rubber ring 120, in this condition
Under, battery cover 130, which can push up, holds sealing rubber ring 120, and sealing rubber ring 120 is under the action of 130 bearing force of battery cover, sealing rubber ring
120 can be in close contact with the inner sidewall of cell cup 110, i.e., sealing rubber ring 120 is close with cell cup 110 and battery cover 130 respectively
Fitting, greatly improves the sealing waterproof performance of sealing rubber ring 120；Meanwhile sealing rubber ring 120 can also provide battery cover 130 and fit
When frictional force, prevent battery cover 130 to be just detached from from cell cup 110 by certain external force, lead to battery winding
The leakage of 200 electrolyte of core.
Step S03,210 position of tab for positioning battery roll core 200, using crosspointer soldering tip 20 to cell cup 110 and/or electricity
Pond lid 130 carries out resistance welding operation；
Wherein, the tab 210 of battery roll core 200 and cell cup 110 and/or the contact portion electric resistance welding shape of battery cover 130
At layer；
Specifically, the layer includes center layer 140 and edge layer 150, and center layer is by battery roll core in center
The contact portion electric resistance welding of tab and cell cup and/or the battery cover at position is formed, and edge layer is by the battery
Tab of the core at marginal position and the contact portion electric resistance welding of cell cup and/battery cover are formed.
It is thus desirable to which explanation, is mentioned to, existing tab welding mode above-mentioned, majority is using Laser Welding
The mode connect, behind the tab position for confirming battery roll core, using laser alignment battery cover or the center position of battery case,
Laser is issuing laser in a flash, and tab and battery cover or battery case are welded together.But aforesaid way exists certain
Defect, first, need to position the tab position of battery roll core, if to the position position inaccurate of tab, tab can occur
" fried weldering " phenomenon, i.e. tab do not complete welding truly with battery cover or battery case, and connective stability is poor；The
Two, if, to the position inaccurate of tab, laser is issuing laser in a flash, and laser is easy battery in soldering polar ear
Lid or battery case directly puncture, and laser is emitted directly toward to battery roll core, and there are sizable security risks.
Therefore, based on the above issues, the application using electric resistance welding mode, specifically, assembling package assembling
100 and battery roll core 200 after, position battery roll core 200 210 position of tab, using crosspointer soldering tip 20 to cell cup 110 and/
Or battery cover 130 carries out resistance welding operation, referring to Figure 2 together, Fig. 3 and Fig. 4, crosspointer soldering tip 20 includes positive soldering tip 21 and negative
Positive soldering tip 21 is directed at cell cup 110 and/or electricity behind 210 position of tab for battery roll core 200 of having good positioning by pole soldering tip 22
The tab of the center position of pond lid 130, cathode soldering tip 22 are aligned at the marginal position of cell cup 110 and/or battery cover 130
Tab, certainly, positive soldering tip 21 and cathode soldering tip 22 can mutually be exchanged in conjunction with practical set situation, i.e., cathode soldering tip 22 is right
The tab of the center position of quasi- cell cup 110 and/or battery cover 130, positive soldering tip 21 are directed at cell cup 110 and/or battery
Tab at the marginal position of lid 130, in the moment that crosspointer soldering tip 20 is powered, positive soldering tip 21, cell cup 110 and cathode soldering tip
Conductive path is formed between 22 or positive soldering tip 21, battery cover 130 and cathode soldering tip 22, electric resistance welding behaviour is carried out to tab 210
Make, so that battery roll core 200 is in the tab 210 and cell cup 110 of center position and/or the contact portion electricity of battery cover 130
Welding resistance forms center layer 140, the tab at marginal position 210 and cell cup 110 and/or battery cover 130 of battery roll core 200
Contact portion electric resistance welding formed edge layer 150.It is emphasized that the formation of center layer 140 and edge layer 150,
The tab 210 of battery roll core 200 and cell cup 110 and/or 130 connective stability of battery cover can be allowed stronger, compared to tradition
Single point laser welding, it is more stable that the application can allow tab 210 to weld, and can be good at preventing when to tab 210
When the position inaccurate of position, there is the phenomenon that " fried weldering " in tab 210, i.e., tab 210 can not completed successfully and cell cup 110
And/or battery cover 130 welds；In addition, the formation of center layer 140 and edge layer 150, when positioning the position of tab 210,
It is welded compared to traditional single point laser, the application is not necessarily to the position of precise positioning tab 210, utilizes center layer 140 and side
The large area of edge layer 150 is covered in cell cup 110 and/or battery cover 130 to complete the operation of the welding to tab 210；In addition,
Traditional laser welding, laser welding are that have to arrive interior welding operation outside, i.e., issue laser in a flash in laser, laser is slowly
Cell cup 110 and/or battery cover 130 are penetrated to tab 210, a weldering pearl is formed, welds pearl by cell cup 110 and/or battery cover
130 to tab 210, slowly transition is got up with tab 210, i.e., laser be by it is outer and it is interior tab 210 is welded, if to pole
The position inaccurate of ear, laser are issuing laser in a flash, and laser is easy battery cover 130 or cell cup 110 directly to hit
It wears, laser is emitted directly toward to battery roll core 200, and there are sizable security risks, and the application is to utilize positive soldering tip
21, conductive path is formed between cell cup 110 and cathode soldering tip 22 or positive soldering tip 21, battery cover 130 and cathode soldering tip 22,
In the moment that crosspointer soldering tip 20 is powered, the tab 210 positioned at center position is welded with cell cup 110 and/or battery cover 130
Together, and center layer 140 is formed, the tab 210 at marginal position and cell cup 110 and/or battery cover 130 weld
Together, and edge layer 150, weldering pearl of the layer compared to the formation that conventional laser is welded of the application, center layer are formed
140 and edge layer 150 be in the part that is in contact of tab and cell cup 110 and/or battery cover 130, energization moment weld
It is connected together, layer is with the length of conduction time, and layer is gradually spread around, i.e., with the extension of conduction time, layer
Area be gradually increased, by increasing the area that welds with 210 phase of tab of layer, that is, enhance the weldering between layer and tab 210
Connect stability；Simultaneously as the variation of layer is diffused around by center, compared to traditional laser welding by outer
And it is interior, the application can be good at preventing in the position position inaccurate of tab 210, laser directly puncture cell cup 110 and/
Or battery cover 130 is injected inside battery roll core 200, is caused battery roll core 200 to explode, is caused corresponding safety accident, and
The application can prevent the generation of above situation very well, the layer spread using surrounding, complete the welding to tab 210 and operate,
The operation of the welding to tab 210 can be completed without laser penetration cell cup 110 and/or battery cover 130, the application is not by outer
And interior welding process, but welding process from inside to outside, safety coefficient greatly improve.
According to the manufacturing method of above-mentioned button-type battery, button cell 10 as shown in Figure 2, coin shape can be produced
Battery 10 includes package assembling 100 and battery roll core 200.
It is thus desirable to explanation, package assembling 100 plays the role of encapsulation and protection battery roll core 200；Battery roll core
200 play the role of providing voltage, and output voltage is into external electric equipment.
Referring to Fig. 2, package assembling 100 includes cell cup 110, sealing rubber ring 120 and battery cover 130, sealant
Circle 120 is placed in cell cup 110, and battery cover 130 is placed in sealing rubber ring 120, and battery cover 130 holds sealing rubber ring for pushing up
120, so that sealing rubber ring 120 and the inner sidewall of cell cup 110 are in close contact, cell cup 110 and battery cover 120 surround electricity jointly
Layer is provided on pond inner cavity, cell cup 110 and/or battery cover 130.
Specifically, layer includes center layer 140 and edge layer 150, and center layer is by battery roll core in center
The tab at place and the contact portion electric resistance welding of cell cup and/or battery cover are formed, and edge layer is by the battery roll core in side
The contact portion electric resistance welding of tab at edge position and cell cup and the/battery cover is formed.
It is thus desirable to explanation, cell cup 110 and battery cover 130 play the role of packaging protection, cell cup 110
Battery compartment is surrounded jointly with battery cover 130, and battery compartment is used for placing battery core 200, cell cup 110 and battery cover 130
It can prevent external object from excessive physical contact directly directly occurs with battery roll core 200, to damage battery roll core 200；
Sealing rubber ring 120 plays the role of sealing waterproof, and the conducting medium that can place the liquid conditions such as extraneous water droplet is penetrated into battery
In cup 110, cause battery roll core 200 short-circuit.
Referring to Fig. 2, battery roll core 200 is set in battery compartment, and tab 210 is provided on battery roll core 200；
Wherein: center layer 140 is by battery roll core 200 in the tab 210 and cell cup 110 and/or battery cover 130 of center position
Contact portion electric resistance welding is formed, and edge layer 150 is by battery roll core 200 in the tab 210 and cell cup 110 of marginal position
It is formed with the contact portion electric resistance welding of/battery cover 130.
It is thus desirable to explanation, battery roll core 200 provide voltage effect, output voltage into external electric equipment,
The voltage of battery roll core 200 is exported by tab 210 into external electric equipment；It is subjected to when to button-type battery 10
When, 210 position of tab of battery roll core 200 is positioned, tab 210 is subjected to, so that battery roll core 200 is in centre bit
Set the tab 210 at place and the contact portion electric resistance welding formation center layer 140 of cell cup 110 and/or battery cover 130, battery winding
The contact portion electric resistance welding of tab 210 of the core 200 at marginal position and cell cup 110 and/battery cover 130 forms edge layer
150, the formation of center layer 140 and edge layer 150, can allow battery roll core 200 tab 210 and cell cup 110 and/or
130 connective stability of battery cover is stronger, welds compared to traditional single point laser, and the application can allow tab 210 to weld more
Add stabilization, can be good at preventing when the position position inaccurate to tab 210, the phenomenon that " fried weldering " occurs in tab 210, i.e.,
Tab 210 can not completed successfully to weld with cell cup 110 and/or battery cover 130；In addition, center layer 140 and edge welding
The formation of layer 150 is welded when positioning the position of tab 210 compared to traditional single point laser, and the application is not necessarily to precise positioning
The position of tab 210 is covered in cell cup 110 and/or battery cover using the large area of center layer 140 and edge layer 150
130 operate to complete the welding to tab 210；In addition, traditional laser welding, laser welding is that have to arrive interior welding behaviour outside
Make, i.e., issue laser in a flash in laser, laser slowly penetrates cell cup 110 and/or battery cover 130 to tab 210, is formed
One weldering pearl, weldering pearl from cell cup 110 and/or battery cover 130 to tab 210, slowly get up with tab 210 by transition, i.e., laser is
By it is outer and it is interior tab 210 is welded, if to the position inaccurate of tab, laser issue laser in a flash, laser
It is easy battery cover 130 or cell cup 110 directly to puncture, laser is emitted directly toward to battery roll core 200, is existed quite big
Security risk, and the application is to utilize positive soldering tip 21, cell cup 110 and cathode soldering tip 22 or positive soldering tip 21, battery
Conductive path is formed between lid 130 and cathode soldering tip 22, in the moment that crosspointer soldering tip 20 is powered, positioned at the tab of center position
210 weld together with cell cup 110 and/or battery cover 130, and form center layer 140, the pole at marginal position
Ear 210 welds together with cell cup 110 and/or battery cover 130, and forms edge layer 150, the layer of the application compared to
The weldering pearl of the formation of conventional laser welding, center layer 140 and edge layer 150 are in tab and cell cup 110 and/or battery
The part that is in contact of lid 130, welds together in the moment of energization, and layer is with the length of conduction time, and layer is gradually to four
Week diffusion, i.e., with the extension of conduction time, the area of layer is gradually increased, and is welded by increase layer with 210 phase of tab
Area, i.e. welding stability between enhancing layer and tab 210；Simultaneously as the variation of layer be by center around into
Row diffusion, compared to traditional laser welding by outer and interior, the application can be good at preventing from positioning in the position of tab 210
When inaccurate, laser directly punctures cell cup 110 and/or battery cover 130 is injected inside battery roll core 200, leads to battery roll core
200 explode, and cause corresponding safety accident, and the application can prevent the generation of above situation very well, be expanded using surrounding
Scattered layer is completed the welding to tab 210 and is operated, can be completed without laser penetration cell cup 110 and/or battery cover 130
Welding operation to tab 210, the application is not by outer and interior welding process, but welding process from inside to outside, safety
Coefficient greatly improves.
Further, in one embodiment, center layer 140 and edge layer 150 are provided in cell cup 110；
Wherein: center layer 140 is by battery roll core 200 in the tab 210 of center position and the contact portion of cell cup 110
Sub-resistance weldering is formed, and edge layer 150 is by battery roll core 200 in tab 210 and the contact of cell cup 110 of marginal position
Partial ohmic weldering is formed.
It is thus desirable to which 140 He of center layer can be only arranged in one embodiment in explanation in cell cup 110
Center layer 140 and edge layer 150, center layer 140 and edge layer are arranged not on battery cover 130 for edge layer 150
150 play the role of and generation type is not elaborating, and please refer to above-mentioned center layer 140 and edge layer 150 and play
Effect and generation type.
Further, referring to Fig. 2, in one embodiment, layer 140 He in center is provided on battery cover 130
Edge layer 150；
Wherein: center layer 140 is by battery roll core 200 in the tab 210 of center position and the contact portion of battery cover 130
Sub-resistance weldering is formed, and edge layer 150 is by battery roll core 200 in tab 210 and the contact of battery cover 130 of marginal position
Partial ohmic weldering is formed.
It is thus desirable to which 140 He of center layer can be only arranged in one embodiment in explanation on battery cover 130
Center layer 140 and edge layer 150, center layer 140 and edge layer are arranged not in cell cup 110 for edge layer 150
150 play the role of and generation type is not elaborating, and please refer to above-mentioned center layer 140 and edge layer 150 and play
Effect and generation type.
Further, in one embodiment, center layer 140 and side are provided on cell cup 110 and battery cover 130
Edge layer 150；
Wherein: center layer 140 is by battery roll core 200 in the tab 210 and cell cup 110 and battery cover of center position
130 contact portion electric resistance welding is formed, and edge layer 150 is by battery roll core 200 in the tab 210 and battery of marginal position
The contact portion electric resistance welding of cup 110 and battery cover 130 is formed.
It is thus desirable to which explanation, in one embodiment, can only be respectively provided in cell cup 110 and battery cover 130
Center layer 140 and edge layer 150, center layer 140 and edge layer 150 play the role of and generation type is not detailed
It illustrates, please refers to above-mentioned center layer 140 and edge layer 150 plays the role of and generation type.
It should also be noted that, when being respectively provided with center layer 140 and edge layer in cell cup 110 and battery cover 130
150, user can be allowed to draw the positive and negative anodes of button-type battery 10 directly from cell cup 110 and battery cover 130, for example, when electricity
Pond cup 110 is with the positive pole ear of battery roll core 210 when connecting, at this time total anode of the cell cup 110 as button-type battery 10, when
When battery cover 130 is connect with the negative lug of battery roll core 210, total cathode of the battery cover 130 as button-type battery 10 at this time；
For another example, when cell cup 110 is connect with the negative lug of battery roll core 210, cell cup 110 is as button-type battery 10 at this time
Total cathode, when battery cover 130 is connect with the positive pole ear of battery roll core 210, battery cover 130 is used as button-type battery 10 at this time
Total anode.During the actual manufacturing, it can go flexibly to be set to bottom to be cell cup in conjunction with actual production requirement
110 are used as total anode or battery cover 130 as always anode.
It should also be noted that, either center layer 140 and edge layer 150 are arranged in cell cup 110 or battery
On lid 130, also or center layer 140 and edge layer 150 are arranged at cell cup 110 and battery cover 130, center layer
140 and edge layer 150 play the role of it is all the same, be prevent the tab 210 of battery roll core 200 occur " fried weldering " phenomenon and
Prevent cell cup 110 and/or the breakdown phenomenon of battery cover 130.
Referring to Figure 2 together, Fig. 5, Fig. 6 and Fig. 7, due to being needed when the tab 210 to battery roll core 200 carries out electric resistance welding
Crosspointer soldering tip 20 is utilized, corresponding, when carrying out electric resistance welding to tab 210, center layer 140 and edge layer 150 are welded
The shape showed formed, is influenced by crosspointer soldering tip 20 to a certain extent.For example, working as center layer 140 and side
It is corresponding when edge layer is in round point shape, weld the positive soldering tip 21 or negative in the corresponding crosspointer soldering tip 20 of center layer 140
Pole soldering tip 22 is equally in round point shape；For another example, when edge layer 150 is annular in shape, corresponding, welding center layer 140 is corresponding
Positive soldering tip 21 or cathode soldering tip 22 in crosspointer soldering tip 20 is same annular in shape；For another example, when edge layer 150 is in disk
Shape, corresponding, the positive soldering tip 21 or cathode soldering tip 22 welded in the corresponding crosspointer soldering tip 20 of center layer 140 is equally in circle
Plate-like；For another example, referring to Fig. 6, when edge layer 150 includes multiple fan blades layers 151, each fan blades layer 151 is in fan
Shape, each fan blades layer is radially distributed with the center of the battery cover, corresponding, and welding center layer 140 is corresponding
Crosspointer soldering tip 20 in positive soldering tip 21 or cathode soldering tip 22 including multiple fan-shaped shapes weld tabs, weld tabs is with positive soldering tip
21 or the center of cathode soldering tip 22 radially distribute.It is emphasized that the shape of crosspointer soldering tip 20 can be in conjunction with practical
The condition of production flexibly set.
It should also be noted that, in order to improve the assembling speed of assembly button-type battery 10, in one embodiment, battery
Slot rolling is offered on cup 110, slot rolling is so that the inner sidewall of cell cup 110 is recessed inwardly to form clamping halfpace, and 120 sets of sealing rubber ring
It being placed on clamping halfpace, battery cover 130 is placed in sealing rubber ring 120, and battery cover 130 holds sealing rubber ring 120 for pushing up, so that
Sealing rubber ring 120 and clamping halfpace are in close contact.
It is thus desirable to explanation, slot rolling is opened up so that the inner sidewall of cell cup 110 is recessed inwardly to form clamping ladder
Platform, when assembling battery cover 130, it is only necessary to be supplied to 130 1 external force pressed down of battery cover, it can by battery cover
130 are assemblied in cell cup 110, will be electric using the mutual cooperation power between clamping halfpace, battery cover 130 and sealing rubber ring 120
Pond lid 130 is stably fixed in cell cup 110, realizes quick assembling, simultaneously as the setting of clamping halfpace, clamping halfpace is also
It can prevent battery cover 130 from pushing excessively severe, so that the battery roll core 200 in battery compartment is arranged in extrusion damage；This
Outside, when the air pressure of battery compartment is excessive, under atmospheric pressure effect, battery cover 130 can be detached to be connect with cell cup 110, complete
At pressure discharge operations, prevent button-type battery 10 excessive in air pressure.
It should also be noted that, battery cover 130 squeezes battery roll core 200 and prevents battery roll core 200 swollen in order to prevent
It is swollen.In one embodiment, button-type battery 10 further includes newel, and via hole is offered in battery roll core 200, and newel is located at
In via hole, and the end of newel and the tab 210 of battery roll core 200 offset.
It is thus desirable to explanation, when battery cover 130 assembly push it is excessive when, newel can be limited to battery cover
130, prevent battery cover 130 from continuing to push extrusion damage battery roll core 200；In addition, newel, which also acts as, prevents battery roll core 200
It is expanded with unexpected factors, damages battery roll core 200.
Button-type battery and its manufacturing method of the invention passes through setting package assembling and battery roll core.It is answered actual
With in the process, cell cup and battery cover play the role of protection, and sealing rubber ring plays sealing waterproof；In addition, when needing
When welding to tab, the position of tab is positioned, resistance welding operation is carried out to cell cup and/or battery cover, so that battery
Core forms center layer, electricity in the tab and cell cup of center position and/or the contact portion electric resistance welding of the battery cover
The tab at marginal position and cell cup of pond core and/or the contact portion electric resistance welding of battery cover form edge layer, center
The presence of layer and edge layer can prevent tab there is a phenomenon where " fried weldering ", the significantly welding stability of tab, compared to
The mode of traditional laser welding, Welding Safety coefficient is higher, and there is no the wind that laser directly punctures cell cup or battery cover
Danger.
Only several embodiments of the present invention are expressed for embodiment described above, and the description thereof is more specific and detailed, but
It cannot be construed as a limitation to the scope of the present invention.It should be pointed out that for the ordinary skill people of this field
For member, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to of the invention
Protection scope.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of button-type battery characterized by comprising
Package assembling, the package assembling include cell cup, sealing rubber ring and battery cover, and the sealing rubber ring is placed on the electricity
In the cup of pond, the battery cover is placed in the sealing rubber ring, and the battery cover holds the sealing rubber ring for pushing up, so that described
Sealing rubber ring and the inner sidewall of the cell cup are in close contact, and the cell cup and the battery cover surround battery compartment jointly,
Layer is provided on the cell cup and/or the battery cover；And
Battery roll core, the battery roll core are set in the battery compartment, are provided with tab on the battery roll core；
Wherein, the layer is by the tab of the battery roll core and the cell cup and/or the contact portion of battery cover electricity
Welding resistance is formed.
2. button-type battery according to claim 1, which is characterized in that the layer includes center layer and edge welding
Layer, the center layer is by the battery roll core in the tab and the cell cup and/or the battery cover of center position
Contact portion electric resistance welding is formed, tab and the cell cup of the edge layer by the battery roll core in marginal position
It is formed with the contact portion electric resistance welding of/battery cover.
3. button-type battery according to claim 2, which is characterized in that the center layer is by the battery roll core in
The contact portion electric resistance welding of tab and the cell cup at heart position is formed, the edge layer by the battery roll core in
The contact portion electric resistance welding of tab and the cell cup at marginal position is formed.
4. button-type battery according to claim 2, which is characterized in that the center layer is by the battery roll core in
The contact portion electric resistance welding of tab and the battery cover at heart position is formed, the edge layer by the battery roll core in
The contact portion electric resistance welding of tab and the battery cover at marginal position is formed.
5. button-type battery according to claim 2, which is characterized in that the center layer is by the battery roll core in
The contact portion electric resistance welding of tab and the cell cup and the battery cover at heart position is formed, and the edge layer is by institute
It states tab of the battery roll core at marginal position and the contact portion electric resistance welding of the cell cup and the battery cover is formed.
6. button-type battery according to claim 2, which is characterized in that the center layer and the edge layer are in
Round point shape.
7. button-type battery according to claim 2, which is characterized in that the edge layer is annular in shape.
8. button-type battery according to claim 2, which is characterized in that the edge layer is in the form of annular discs.
9. button-type battery according to claim 2, which is characterized in that the edge layer includes multiple fan blades layers,
Each fan-shaped shape of the fan blades layer.
10. a kind of manufacturing method of button-type battery, which comprises the following steps:
Step S01, the package assembling and battery roll core for manufacturing the button-type battery are provided, wherein the package assembling
Including cell cup, sealing rubber ring and battery cover；
Step S02, sealing rubber ring is placed in the cell cup, and the battery roll core is placed in the cell cup,
And it is placed in the battery cover in the sealing rubber ring, the battery caping holds the sealing rubber ring, so that the sealant
Circle and the inner sidewall of the cell cup are in close contact, at this point, the cell cup and the battery cover surround battery compartment jointly, institute
Battery roll core is stated to be located in the battery compartment；
Step S03, the tab position for positioning the battery roll core, using crosspointer soldering tip to the cell cup and/or the battery
Lid carries out resistance welding operation；
Wherein, the contact portion electric resistance welding of the tab of the battery roll core and the cell cup and/or the battery cover, which is formed, welds
Layer.
Priority Applications (5)
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| CN202110531974.2A CN113363633B (en) | 2019-05-15 | 2019-05-15 | Button cell and method for manufacturing same |
| CN201910403375.5A CN110336065B (en) | 2019-05-15 | 2019-05-15 | Button-type battery and method for manufacturing the same |
| CN202110532672.7A CN113363635A (en) | 2019-05-15 | 2019-05-15 | Button-type battery and method for manufacturing the same |
| CN202110532689.2A CN113363636B (en) | 2019-05-15 | 2019-05-15 | Button cell and method for manufacturing same |
| CN202110532096.6A CN113363634B (en) | 2019-05-15 | 2019-05-15 | Button cell and method for manufacturing same |
Applications Claiming Priority (1)
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| CN201910403375.5A CN110336065B (en) | 2019-05-15 | 2019-05-15 | Button-type battery and method for manufacturing the same |
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| CN202110532689.2A Division CN113363636B (en) | 2019-05-15 | 2019-05-15 | Button cell and method for manufacturing same |
| CN202110532096.6A Division CN113363634B (en) | 2019-05-15 | 2019-05-15 | Button cell and method for manufacturing same |
| CN202110532672.7A Division CN113363635A (en) | 2019-05-15 | 2019-05-15 | Button-type battery and method for manufacturing the same |
| CN202110531974.2A Division CN113363633B (en) | 2019-05-15 | 2019-05-15 | Button cell and method for manufacturing same |
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| CN202110531974.2A Active CN113363633B (en) | 2019-05-15 | 2019-05-15 | Button cell and method for manufacturing same |
| CN201910403375.5A Active CN110336065B (en) | 2019-05-15 | 2019-05-15 | Button-type battery and method for manufacturing the same |
| CN202110532672.7A Pending CN113363635A (en) | 2019-05-15 | 2019-05-15 | Button-type battery and method for manufacturing the same |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN113363635A (en) | 2021-09-07 |
| CN113363636B (en) | 2023-06-30 |
| CN110336065B (en) | 2021-05-18 |
| CN113363636A (en) | 2021-09-07 |
| CN113363633B (en) | 2023-06-06 |
| CN113363634B (en) | 2023-08-04 |
| CN113363633A (en) | 2021-09-07 |
| CN113363634A (en) | 2021-09-07 |
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