CN109065822A - Button cell - Google Patents
Button cell Download PDFInfo
- Publication number
- CN109065822A CN109065822A CN201811100004.1A CN201811100004A CN109065822A CN 109065822 A CN109065822 A CN 109065822A CN 201811100004 A CN201811100004 A CN 201811100004A CN 109065822 A CN109065822 A CN 109065822A
- Authority
- CN
- China
- Prior art keywords
- battery core
- pole
- output conductor
- positioning ring
- pole shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004020 conductor Substances 0.000 claims abstract description 133
- 238000004804 winding Methods 0.000 claims abstract description 6
- 238000002788 crimping Methods 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 239000003792 electrolyte Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical group [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 238000001723 curing Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 2
- 239000005030 aluminium foil Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000003486 chemical etching Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 206010054949 Metaplasia Diseases 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- OVAQODDUFGFVPR-UHFFFAOYSA-N lithium cobalt(2+) dioxido(dioxo)manganese Chemical compound [Li+].[Mn](=O)(=O)([O-])[O-].[Co+2] OVAQODDUFGFVPR-UHFFFAOYSA-N 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000010935 stainless steel Chemical group 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
-
- 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
- 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
-
- 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
- H01M50/171—Lids or covers characterised by the methods of assembling casings with lids using adhesives or sealing agents
-
- 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
- H01M50/538—Connection of several leads or tabs of wound or folded electrode stacks
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The present invention relates to a kind of button cells, comprising: the first pole shell and the second pole shell；Insulated enclosure circle is set between the first pole shell and the second pole shell, and the first pole shell and the second pole shell are electrically completely cut off, and forms accommodating cavity between the first pole shell, the second pole shell and insulated enclosure circle；And battery core, in accommodating cavity, and including the first pole piece, the second pole piece and diaphragm, pass through diaphragm interval between first pole piece and the second pole piece, battery core is made in first pole piece, the second pole piece and diaphragm stacking or winding, first pole piece is equipped at least one first output conductor, first output conductor is stretched out from battery core, and it is electrically connected after turning down the outer circumferential for being located at battery core with the first pole shell, second pole piece is equipped at least one second output conductor, second output conductor is stretched out from battery core, and is electrically connected after turning down the outer circumferential for being located at battery core with the second pole shell inner sidewall.This button cell may be implemented to automate installation between battery core and positive and negative anodes shell.
Description
Technical field
The present invention relates to the technical fields of battery, more particularly to button cell.
Background technique
With the development of portable electronic product and intelligence wearing electronic product, battery is required more to be miniaturized.?
While holding compared with the high life, it is desirable that battery has energy density per unit volume as high as possible, specific energy.
In the limited situation in button cell inner space, above-mentioned purpose is realized, and need to keep the stability of structure and close
Feng Xing, manufacturing cost are relatively high.
Wherein, the mechanical connection between the core of button cell and positive and negative anodes shell and electronics connection are button cell manufactures
A very stubborn problem in the process.It constrains the production efficiency of button cell, need to increase the investment of special equipment, so that raw
Higher cost is produced, and is not easy to realize automated production.
Summary of the invention
Based on this, it is necessary to which, for the problem that button cell installation is inconvenient, providing one kind may be implemented battery core and positive and negative anodes
The button cell of installation is automated between shell.
A kind of button cell, comprising:
First pole shell and the second pole shell；
Insulated enclosure circle, the insulated enclosure circle are set between first pole shell and second pole shell, and will be described
First pole shell and second pole shell electrically completely cut off, between first pole shell, second pole shell and the insulated enclosure circle
Form accommodating cavity；And
Battery core, the battery core are set in the accommodating cavity, and including the first pole piece, the second pole piece and diaphragm, and described first
Pass through the diaphragm interval, first pole piece, second pole piece and the membrane layer between pole piece and second pole piece
The battery core is made in folded or winding, and first pole piece is equipped at least one first output conductor, first output conductor
It stretches out from the battery core, and is electrically connected after turning down the outer circumferential for being located at the battery core with first pole shell, it is described
Second pole piece is equipped at least one second output conductor, and second output conductor is stretched out from the battery core, and turns down and be located at
It is electrically connected behind the outer circumferential of the battery core with second pole shell.
Above-mentioned button cell, it is electrical with the first pole shell behind the outer circumferential of battery core by the way that the fold of the first output conductor to be located at
Connection, the fold of the second output conductor is electrically connected after being located at the outer circumferential of battery core with the second pole shell, so that battery core and positive and negative anodes
Shell does not need to increase the investment of special equipment when installing, and simple, easy realization battery core is electrically connected with positive and negative anodes shell.Cause
For, the first output conductor is connect with the inner sidewall of the first pole shell, and the second output conductor is connect with the inner sidewall of the second pole shell,
It can make to be more easier to operate when installation in this way, only need compression fit.The battery core of this button cell and the company of pole shell
It is reliable to connect mode, it is easy to accomplish automated production reduces manufacturing cost.
The electricity is made in first pole piece, second pole piece and the membrane winding in one of the embodiments,
Core, and first output conductor is drawn by being located at outermost first pole piece of the battery core, second output conductor
It is drawn by being located at outermost second pole piece of the battery core.Electric connection convenient for the first output conductor and the first pole shell is set
It sets and the electric connection of the second output conductor and the second pole shell is arranged.
First pole shell includes the first bottom wall and on first bottom wall periphery in one of the embodiments,
First circumferential side wall, first pole valve jacket are set in the first end of the battery core, and first circumferential side wall and described the
One output conductor is electrically connected；Second pole shell includes the second bottom wall and the second circumferential direction on second bottom wall periphery
Side wall, second pole valve jacket are set in the second end of the battery core, and second circumferential side wall is led with second output
Body is electrically connected.It is electrically connected convenient for the first output conductor and the first pole shell, the second output conductor and the second pole shell are electrically connected.
It in one of the embodiments, further include the second positioning ring being sheathed in the second end of the battery core, described
The first end of two positioning rings is equipped with in-flanges, the in-flanges withhold the battery core outer circumferential and the battery core the
The second end of the junction of the end face at two ends, second positioning ring is connected on the outer circumferential of the battery core.In-flanges
Being tightly placed in battery core of enabling the second positioning ring stable is set, guarantees the second peripheral side of the second output conductor and the second pole shell
The stability that wall is electrically connected.
It in one of the embodiments, further include the second positioning ring being sheathed in the second end of the battery core, described
Two output conductors are stretched out from the battery core, and are turned down to the outer circumferential of second positioning ring, so that second output
Conductor is connected between second positioning ring and second circumferential side wall.By the second positioning ring by the second output conductor pressure
It is tightened in the second circumferential side wall of the second pole shell, so that the second circumferential side wall of the second output conductor and the second pole shell is engaged
It is stronger.
It in one of the embodiments, further include the second positioning ring being sheathed in the second end of the battery core, described
Two output conductors are stretched out from the battery core, and are turned down on the outer circumferential of the battery core, second positioning ring respectively with institute
State the second output conductor, second pole shell is electrically connected.It is adjacent to by the inner sidewall and the second output conductor of the second positioning ring
Cooperation, lateral wall abut with the second circumferential side wall of the second pole shell, can stablize, firmly realize the second output conductor and second
Second circumferential side wall of pole shell is electrically connected.
It in one of the embodiments, further include the first positioning ring, first positioning ring is in the sleeve that both ends are open
Shape, and be sheathed in the first end of the battery core, first output conductor passes through first positioning ring and described first week
It is electrically connected to side wall.First positioning ring can make the first circumferential side wall of the first output conductor and the first pole shell be electrically connected
It is more stable.
First output conductor is stretched out from the battery core in one of the embodiments, and is turned down to the battery core
On outer circumferential, first positioning ring is sheathed in the battery core, and respectively with first output conductor, first pole
Shell is electrically connected.It is closely fitted by the inner sidewall of the first positioning ring and the first output conductor, the of lateral wall and the first pole shell
One circumferential side wall abuts, and can stablize, firmly realize that the first output conductor and the first circumferential side wall of the first pole shell electrically connect
It connects.
First positioning ring is porous structure in one of the embodiments, in the first end of first positioning ring
Equipped with flanging, first positioning ring is sheathed in the battery core, and the flanging is abutted with first circumferential side wall,
The second end of first positioning ring is abutted with first bottom wall, first positioning ring, the flanging, first bottom
Cavity is formed between wall and first circumferential side wall.First positioning ring is electrically connected by flanging with the first pole shell more steady
It is fixed, and cavity can store electrolyte using battery compartment to a greater extent, and electrolyte can be penetrated by the first positioning ring
Battery core helps battery core to generate more electric energy.
First pole shell further includes first end crimping in one of the embodiments, and the first end crimping is set
In on the one end of first circumferential side wall far from first bottom wall, the first end crimping withholds the insulated enclosure
On the junction of the outer circumferential of circle and end face of the insulated enclosure circle far from first bottom wall.So that insulated enclosure circle
It is more stable, firm to be arranged.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of button cell of the present invention；
Fig. 2 is the structural schematic diagram of one embodiment of battery core in button cell shown in Fig. 1；
Fig. 3 is the structural schematic diagram of another embodiment of battery core in button cell shown in Fig. 1；
Fig. 4 is the structural schematic diagram of the second pole shell and the cooperation of insulated enclosure circle in button cell shown in Fig. 1；
Fig. 5 is the knot for the embodiment one that the second pole shell shown in Fig. 1 in button cell and the second output conductor are coupled
Structure schematic diagram；
Fig. 6 is the knot for the embodiment two that the second pole shell shown in Fig. 1 in button cell and the second output conductor are coupled
Structure schematic diagram；
Fig. 7 is the knot for the embodiment three that the second pole shell shown in Fig. 1 in button cell and the second output conductor are coupled
Structure schematic diagram；
Fig. 8 is the structural schematic diagram of one embodiment of the second positioning ring in button cell shown in Fig. 1；
Fig. 9 is the structural schematic diagram of another embodiment of the second positioning ring in button cell shown in Fig. 1.
In attached drawing, parts list represented by the reference numerals are as follows:
10, button cell；20, the first pole shell；21, the first bottom wall；22, the first circumferential side wall；23, first end crimping；
30, the second pole shell；31, the second bottom wall；32, the second circumferential side wall；40, insulated enclosure circle；50, accommodating cavity；60, battery core；61,
One pole piece；62, the second pole piece；63, diaphragm；64, the first output conductor；65, the second output conductor；70, the second positioning ring；71,
In-flanges；72, the first positioning ring；73, flanging；74, insulating layer, 80, cavity, 90, terminal adhesive tape.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case where violating intension of the present invention, therefore the present invention is not limited to the specific embodiments disclosed below.
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.Each technical characteristic of embodiment described above can carry out arbitrarily
Combination, for simplicity of description, it is not all possible to each technical characteristic in above-described embodiment combination be all described, so
And as long as there is no contradiction in the combination of these technical features, it all should be considered as described in this specification.
Referring to Fig. 1, in an embodiment of the present invention, button cell 10, comprising: the first pole shell 20, the second pole shell 30, absolutely
Edge sealing ring 40 and battery core 60.Insulated enclosure circle 40 is set between the first pole shell 20 and the second pole shell 30, passes through insulated enclosure
Circle 40 electrically completely cuts off the first pole shell 20 and the second pole shell 30.Between first pole shell 20, the second pole shell 30 and insulated enclosure circle 40
Form accommodating cavity 50.Battery core 60 is placed in accommodating cavity 50.Battery core 60 includes the first pole piece 61, the second pole piece 62 and diaphragm 63.The
It is spaced between one pole piece 61 and the second pole piece 62 by diaphragm 63, also, the first pole piece 61, the second pole piece 62 and diaphragm 63 are laminated
Or battery core 60 is made in winding.First pole piece 61 is equipped at least one first output conductor 64, and the first output conductor 64 is from battery core
60 stretch out, and are electrically connected after turning down the outer circumferential for being located at battery core 60 with the formation of the first pole shell 20.Second pole piece 62 is equipped with extremely
Few second output conductor 65, the second output conductor 65 are stretched out from battery core 60, and are turned down behind the outer circumferential of battery core 60
It is electrically connected with the second pole shell 30.
Button cell 10 of the present invention, by the way that the fold of the first output conductor 64 to be located at behind the outer circumferential of battery core 60 with first
Pole shell 20 is electrically connected, and the fold of the second output conductor 65 is electrically connected after being located at the outer circumferential of battery core 60 with the second pole shell 30,
So that battery core 60 and the first pole shell 20, the second pole shell 30 do not need to increase the investment of special equipment, simple, easy reality when installing
Existing battery core 60 and the first pole shell 20, the second pole shell 30 are electrically connected.Due to, the first output conductor 64 be in the first pole shell 20
Side wall connection, the second output conductor 65 is connect with the inner sidewall of the second pole shell 30, therefore, can be more easier when installation
Operation, only needs compression fit.The battery core 60 of this button cell 10 and the connection type of pole shell are reliable, it is easy to accomplish automatic
Metaplasia produces, and reduces manufacturing cost.
In one embodiment, the first pole shell 20 includes the first bottom wall 21 and first week on 21 periphery of the first bottom wall
To side wall 22, the first pole shell 20 is sheathed in the first end of battery core 60, and the first circumferential side wall 22 and the first output conductor 64 paste
Tightly, it and is electrically connected.Second pole shell 30 includes the second bottom wall 31 and the second circumferential side wall 32 on 31 periphery of the second bottom wall,
Second pole shell 30 is sheathed in the second end of battery core 60, and the second circumferential side wall 32 is adjacent to the second output conductor 65, and electrically
Connection.
Referring to Fig. 2, in one embodiment, be spaced between the first pole piece 61 and the second pole piece 62 by diaphragm 63, and
Roll into battery core 60.It should be noted that battery core 60 can be 61/ 63/ second pole piece of diaphragm of the first pole piece, 62/ diaphragm by sequence
The pole piece group of 63 compositions is wound, and can also be the pole of 62/ 63/ first pole piece of diaphragm of the second pole piece, 61/ diaphragm 63 by sequence
Piece group is wound.First output conductor 64 and the second output conductor 65 are equipped with one, and the first output conductor 64 is by being located at
Outermost first pole piece 61 of battery core 60 is drawn, and the second output conductor 65 is drawn by being located at outermost second pole piece 62 of battery core 60
Out.It can be in order to the electric connection of the first output conductor 64 and the first pole shell 20 setting and the second output conductor 65 and second
The electric connection of pole shell 30 is arranged.Those skilled in the art, which can according to need, leads the first output conductor 64 and the second output
Body 65 extends from some position of 60 end face of battery core, herein with no restriction.
In addition, it should be noted that, being spaced between the first pole piece 61 and the second pole piece 62 by diaphragm 63, and roll into electricity
After core 60, diaphragm 63 is to be located at outermost layer, and the outer circumferential of battery core 60 is wound fastening by terminal adhesive tape 90.
Referring to Fig. 3, in another embodiment, be spaced between the first pole piece 61 and the second pole piece 62 by diaphragm 63,
And it is stacked and to form battery core 60.Specifically, battery core 60 is by three layer of first pole piece, 61, four layer of second pole piece 62 and to be set to the
Diaphragm 63 between one pole piece 61, the second pole piece 62 is laminated.First pole piece 61, the second pole piece 62 and diaphragm 63 are arranged to ellipse
It is round.The end of every layer of first pole piece 61 is extended with the first connecting pin, the end of the first output conductor 64 and each first connecting pin
Portion's connection.The end of every layer of second pole piece 62 is extended with second connection end, the second output conductor 65 and each second connection end
End connection.Battery core 60 is wrapped up by organic insulation film seal.
It should be noted that in a specific embodiment, the first pole shell 20 can be anode cover, the second pole shell 30 can be
Negative electrode casing.First pole piece 61 can be positive plate, and the second pole piece 62 can be negative electrode tab.First output conductor 64 can be anode
Output conductor, the second output conductor 65 can be cathode output conductor.The main material of positive plate is nickle cobalt lithium manganate, base material
It is aluminium foil.The main material of negative electrode tab is artificial graphite, and base material is copper foil.Positive plate, the material of negative electrode tab and diaphragm, length
The parameters such as degree, width belong to the prior art, are technologies well-known to those skilled in the art.
In addition, the output conductor in the present invention refers to, the base metal foil of pole piece take up an official post why not the region with functional coating.
For positive plate, output conductor is the aluminium foil exposed.For negative electrode tab, output conductor is the copper foil exposed.Pole piece
Being electrically connected between the shell of pole, is not limited by output conductor, can also be electrically connected by setting collector with the realization of pole shell.Tool
For body, relative to output conductor, in order to realize needs that pole piece is electrically connected with pole shell, on output conductor with machinery, physics,
The component or assembling parts of the material that can be electrically connected with pole shell, configuration that the modes such as chemistry combine, are referred to as collector.By
Collector realization output conductor is electrically connected with pole shell.Simplest mode is that output conductor itself is used as collector.
Referring to Fig. 4, in a cooperation embodiment of the second pole shell 30 with insulated enclosure circle 40, in order to preferably realize the
Two output conductors 65 are electrically connected with the second circumferential side wall 32.A kind of suitable engineering plastics opening in the second pole shell 30 can be used
Mouth outer is molded to form insulated enclosure circle 40, so that most of region of the second circumferential side wall 32 is not by plastic wraps.
After second pole shell, 30 edge curling seal, on the basis of ensure that 10 good leakproofness of button cell, so that the second circumferential side wall
32 conductive region can be contacted and be electrically connected with the second output conductor 65 well.
Referring to Fig. 5, the second output is led in the embodiment one that the second pole shell 30 and the second output conductor 65 are coupled
Body 65 is stretched out from battery core 60, and is turned down and be located on the outer circumferential of battery core 60, and the second pole shell 30 is sheathed on the end of battery core 60,
And second circumferential side wall 32 be adjacent to the second output conductor 65, and be electrically connected.Realize that the second output conductor 65 and second is circumferential
Stablizing for side wall 32 is electrically connected, and fit structure is simpler easy.
Fig. 6 and Fig. 8 are please referred to, in the embodiment two that the second pole shell 30 and the second output conductor 65 are coupled, is also wrapped
Include the second positioning ring 70.Second positioning ring 70 is sheathed in the second end of battery core 60, the second output conductor 65 and the second peripheral side
Wall 32 is electrically connected.In concrete operations, the second positioning ring 70 is sheathed in battery core 60, and the fold of the second output conductor 65 is located at second
On the outer circumferential of positioning ring 70.Second pole shell 30 is sheathed on the second positioning ring 70, and is connected to the second output conductor 65
Second positioning ring 70 and the second circumferential side wall 32.Second output conductor 65 is pressed to the second peripheral side by the second positioning ring 70
On wall 32 so that the second output conductor 65 be engaged with the second circumferential side wall 32 it is stronger.
On the basis of the above embodiments, the second positioning ring 70 can use plastic part resistant to chemical etching, resistant to chemical etching
Plastic part is sheathed on the outer circumferential of battery core 60, and the second output conductor 65 and the second circumferential side wall 32 are compressed tightly, is realized
Second output conductor 65 is electrically connected with the stabilization of the second pole shell 30.
Referring to Fig. 7, being in above-mentioned reality in the embodiment three that the second pole shell 30 and the second output conductor 65 are coupled
Apply the improvement carried out on the basis of example two.Specifically, the second output conductor 65 is stretched out from battery core 60, and is turned down and be located at battery core 60
On outer circumferential.Second positioning ring 70 is sheathed on the outer circumferential of battery core 60, and the second output conductor 65 is compressed.Second pole
Shell 30 is sheathed on the second positioning ring 70.Second positioning ring 70 is electrically connected with the second output conductor 65, the second pole shell 30 respectively.
It being closely fitted by the inner sidewall of the second positioning ring 70 and the second output conductor 65, lateral wall is abutted with the second circumferential side wall 32,
It can stablize, firmly realize that the second output conductor 65 and the second circumferential side wall 32 are electrically connected.
Specifically, the second positioning ring 70 can be the first becket.First becket wall thickness is 0.05mm~0.25mm, high
Degree is no more than the height of 30 inner sidewall conductive region of the second pole shell.By metal ring on one end of battery core 60, and it is defeated by second
Conductor 65 is compressed in the second circumferential side wall 32 out, realize the second output conductor 65 with the second pole shell 30 is stable is electrically connected.This
Kind Standard is more convenient, it is only necessary to becket is tightly placed in battery core 60, then the stretch out from battery core 60 second output is led
Body 65 is set on the lateral wall of becket, and finally the second pole shell 30 is crimped on the second output conductor 65, can make metal
It is formed and is closely fitted between the lateral wall of ring, the second output conductor 65 and the second circumferential side wall 32, realize the second output conductor
65 are electrically connected with the stabilization of the second pole shell 30.It should be noted that becket can choose copper ring, nickel ring, stainless steel ring etc., energy
Realize the electric connection of the second output conductor 65 and the second pole shell 30, herein with no restriction.
On the basis of the above embodiments, further, one end of the second positioning ring 70 is equipped with in-flanges 71.In-flanges 71
Withhold the junction of the end face of the outer circumferential of battery core 60 and the second end of battery core 60.Again by the second pole shell 30 be tightly placed in the
On the outside of two positioning rings 70.So that shape between 65 lateral wall of the second output conductor, the second positioning ring 70, the second circumferential side wall 32
At snug fit, realize that the second output conductor 65 is electrically connected with the stabilization of the second pole shell 30.Specifically, the material of the second positioning ring 70
Matter is 304 stainless steels, and wall thickness 0.1mm, a height of 0.6mm of ring, 71 length of in-flanges is 1.5mm.The setting of in-flanges 71 can be with
It is more preferable to the close-fitting constraint of battery core 60, and be more conducive to assembling, high production efficiency, it is easy to accomplish production automation.
It should be noted that the first pole shell 20 and the first output conductor 64 are coupled structure, it is referred to above-mentioned
Two pole shells 30 and the second output conductor 65 are coupled the embodiment of structure.
Specifically, in the embodiment one that the first pole shell 20 and the first output conductor 64 are coupled, the first output conductor
64 stretch out from battery core 60, and turn down and be located on the outer circumferential of battery core 60.First pole shell 20 is sheathed on one end of battery core 60, and
First circumferential side wall 22 and the first output conductor 64 are electrically connected.
It further include the first positioning ring 72 in the embodiment two that the first pole shell 20 and the first output conductor 64 are coupled.
First positioning ring 72 is in the sleeve-shaped that both ends are open, and is sheathed on the outside of one end of battery core 60, and the first output conductor 64 is logical
It crosses the first positioning ring 72 and the first circumferential side wall 22 is electrically connected.
In the embodiment three that the first pole shell 20 and the first output conductor 64 are coupled, the first output conductor 64 is from battery core
60 stretch out, and turn down to the outer circumferential of battery core 60.First positioning ring 72 is sheathed in battery core 60, and is exported respectively with first
Conductor 64, the first pole shell 20 are electrically connected.
On the basis of above-described embodiment three, the first positioning ring 72 is porous structure, is gone back on one end of the first positioning ring 72
Equipped with flanging 73, the first positioning ring 72 is sheathed in battery core 60, and flanging 73 is abutted with the first circumferential side wall 22, and first is fixed
The second end of position ring 72 is abutted with the first bottom wall 21.First positioning ring 72, flanging 73, the first bottom wall 21 and the first circumferential side wall
Cavity 80 is formed between 22.First positioning ring 72 is electrically connected more stable, and cavity by flanging 73 with the first pole shell 20
80 can store electrolyte using battery compartment to a greater extent, and electrolyte can penetrate into battery core 60 by the first positioning ring 72,
Battery core 60 is helped to generate more electric energy.
In order to enable the setting of insulated enclosure circle 40 is more stable, firm, the insulation of the first pole shell 20 and the second pole shell 30
It installs also stronger.The inner hollow of first pole shell 20, and one end is equipped with opening.First pole shell 20 further includes first end volume
Side 23, first end crimping 23 are set on the one end of the first circumferential side wall 22 far from the first bottom wall 21.First end crimping 23 is detained
It is pressed on the outer circumferential of insulated enclosure circle 40 and the junction of end face of the insulated enclosure circle 40 far from the first bottom wall 21.
In order to guarantee the insulation set between 60 both ends of battery core and the first pole shell 20, the second pole shell 30.In an embodiment
In, 63 width of diaphragm is greater than the width of the first pole piece 61, the second pole piece 62.First pole piece 61, the second pole piece 62 and diaphragm volume 63
It is made battery core 60, and turns down beyond the part of the first pole piece 61, the second pole piece 62 by 63 two sides of diaphragm to form that there are two isolations
Portion, and two isolation parts are abutted with the inside bottom wall of the inside bottom wall of the first pole shell 20, the second pole shell 30 respectively.
It in another embodiment, further include insulating layer 74.Insulating layer 74 is set to the first end and the first pole shell of battery core 60
Between 20 and/or between the second end of battery core 60 and the second pole shell 30.Insulating layer 74 be used for by battery core 60 and the first pole shell 20 and/
Or second pole shell 30 be electrically insulated.Avoid the electrode section of 60 end of battery core from leaking electricity, and with the first pole shell 20 and/or the second pole
The connection of 30 circuit of shell is caused using bad.It should be noted that insulating layer 74 is equipped with through-hole, the first output conductor 64 and second
After output conductor 65 can be stretched out by through-hole, then it is electrically connected with the first pole shell 20, the second pole shell 30.
It is understood that the first output conductor 64 is stretched out from battery core 60, and turns down the outer circumferential for being located at battery core 60, packet
Include: the first output conductor 64 is stretched out from battery core 60, and is turned down to the outer circumferential of battery core 60；First output conductor 64 is from battery core
60 stretch out, and turn down to the outer circumferential of the first positioning ring 72.Second output conductor 65 is stretched out from battery core 60, and is turned down and be located at
The outer circumferential of battery core 60, comprising: the second output conductor 65 is stretched out from battery core 60, and is turned down to the outer circumferential of battery core 60；
Second output conductor 65 is stretched out from battery core 60, and is turned down to the outer circumferential of the second positioning ring 70.
In addition to the above implementation exceptions, the first pole shell 20 and the first circumferential side wall 22, the second pole shell 30 and the second circumferential side wall
32 electric connection mode can also pass through welding.Specifically, precision resistance spot welding, ultrasonic bonding or Laser Welding can be used
The mode connect is realized.Since the depth of the second pole shell 30 is shallower, the connection type of this welding need higher positioning accuracy and
Device customizing, higher cost, efficiency are lower.
In addition to the above implementation exceptions, the first pole shell 20 and the first circumferential side wall 22, the second pole shell 30 and the second circumferential side wall
32 electric connection mode can also pass through conductive adhesive curing.Specifically, the first output conductor 64 passes through conductive adhesive curing bonding
In the first circumferential side wall 22, the second output conductor 65 is bonded in the second circumferential side wall 32 by conductive adhesive curing.For example, will
Epoxy conductive nickel slurry is coated on the inner sidewall of output conductor and pole shell, and the conductive connection of the two is realized by heat cure.It needs
It is noted that conducting resinl is the adhesive with certain electric conductivity after a kind of solidification, usually filled out with matrix resin and conduction
Material is that conducting particles is main constituents.Conducting particles is combined together by the bonding effect of matrix resin, formation is led
Electric pathway realizes the conductive connection for being glued material.Conducting resinl has adhesive force strong, and impedance is low, and soldering resistance is good and anti-aging property
The features such as strong.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.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 cell characterized by comprising
First pole shell and the second pole shell；
Insulated enclosure circle, the insulated enclosure circle are set between first pole shell and second pole shell, and by described first
Pole shell and second pole shell electrically completely cut off, and are formed between first pole shell, second pole shell and the insulated enclosure circle
Accommodating cavity；And
Battery core, the battery core are set in the accommodating cavity, and including the first pole piece, the second pole piece and diaphragm, first pole piece
By the diaphragm interval between second pole piece, first pole piece, second pole piece and diaphragm stacking or
Winding is made the battery core, and first pole piece is equipped at least one first output conductor, and first output conductor is from institute
Battery core stretching is stated, and is electrically connected after turning down the outer circumferential for being located at the battery core with first pole shell, described second
Pole piece is equipped at least one second output conductor, and second output conductor is stretched out from the battery core, and turns down positioned at described
It is electrically connected behind the outer circumferential of battery core with second pole shell.
2. button cell according to claim 1, which is characterized in that first pole piece, second pole piece and described
The battery core is made in membrane winding, and first output conductor is drawn by being located at outermost first pole piece of the battery core
Out, second output conductor is drawn by being located at outermost second pole piece of the battery core.
3. button cell according to claim 1, which is characterized in that first pole shell is including the first bottom wall and is set to institute
State the first circumferential side wall on the first bottom wall periphery, first pole valve jacket is set in the first end of the battery core, and described the
One circumferential side wall and first output conductor are electrically connected；Second pole shell is including the second bottom wall and is set to second bottom
The second circumferential side wall on wall periphery, second pole valve jacket is set in the second end of the battery core, and second peripheral side
Wall and second output conductor are electrically connected.
4. button cell according to claim 3, which is characterized in that further include being sheathed in the second end of the battery core
The first end of second positioning ring, second positioning ring is equipped with in-flanges, and the in-flanges withholds the circumferential direction of the battery core
The junction of the end face of the second end of outside and the battery core, the second end of second positioning ring are connected to the week of the battery core
On outward.
5. button cell according to claim 3, which is characterized in that further include being sheathed in the second end of the battery core
Second positioning ring, second output conductor are stretched out from the battery core, and are turned down to the outer circumferential of second positioning ring,
So that second output conductor is connected between second positioning ring and second circumferential side wall.
6. button cell according to claim 3, which is characterized in that further include being sheathed in the second end of the battery core
Second positioning ring, second output conductor are stretched out from the battery core, and are turned down on the outer circumferential of the battery core, and described the
Two positioning rings are electrically connected with second output conductor, second pole shell respectively.
7. button cell according to claim 3, which is characterized in that it further include the first positioning ring, first positioning ring
The sleeve-shaped being open in both ends, and be sheathed in the first end of the battery core, first output conductor passes through described first
Positioning ring and first circumferential side wall are electrically connected.
8. button cell according to claim 7, which is characterized in that first output conductor is stretched out from the battery core,
And turn down on the outer circumferential of the battery core, first positioning ring is sheathed in the battery core, and respectively with described first
Output conductor, first pole shell are electrically connected.
9. button cell according to claim 7, which is characterized in that first positioning ring is porous structure, described the
The first end of one positioning ring is equipped with flanging, and first positioning ring is sheathed in the battery core, and the flanging and institute
The first circumferential side wall abutting is stated, the second end of first positioning ring is abutted with first bottom wall, first positioning ring, institute
It states and forms cavity between flanging, first bottom wall and first circumferential side wall.
10. button cell according to claim 3, which is characterized in that first pole shell further includes first end crimping,
The first end crimping is set on the one end of first circumferential side wall far from first bottom wall, the first end crimping
Withhold the outer circumferential of the insulated enclosure circle and the junction of end face of the insulated enclosure circle far from first bottom wall
On.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811100004.1A CN109065822B (en) | 2018-09-20 | 2018-09-20 | Button cell |
| PCT/CN2018/113918 WO2020056879A1 (en) | 2018-09-20 | 2018-11-05 | Button cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811100004.1A CN109065822B (en) | 2018-09-20 | 2018-09-20 | Button cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109065822A true CN109065822A (en) | 2018-12-21 |
| CN109065822B CN109065822B (en) | 2024-04-05 |
Family
ID=64763269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811100004.1A Active CN109065822B (en) | 2018-09-20 | 2018-09-20 | Button cell |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109065822B (en) |
| WO (1) | WO2020056879A1 (en) |
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| CN111224054A (en) * | 2020-01-19 | 2020-06-02 | 深圳市言九电子科技有限公司 | Quick-charging type high-capacity button battery |
| CN111354911A (en) * | 2020-04-24 | 2020-06-30 | 福建南平延平区南孚新能源科技有限公司 | Button battery pole shell and electrode lug traceless welding method, welding structure and product |
| CN112736332A (en) * | 2019-10-11 | 2021-04-30 | 瓦尔达微电池有限责任公司 | Energy storage element and method of manufacture |
| CN113474941A (en) * | 2020-09-23 | 2021-10-01 | 宁德新能源科技有限公司 | Battery and electronic device with same |
| WO2021223444A1 (en) * | 2020-05-06 | 2021-11-11 | 广东微电新能源有限公司 | Button cell or cylindrical cell |
| WO2022060136A1 (en) * | 2020-09-18 | 2022-03-24 | 주식회사 엘지에너지솔루션 | Button-type secondary battery |
| CN114902487A (en) * | 2020-09-18 | 2022-08-12 | 株式会社Lg新能源 | Button type secondary battery |
| KR20230003993A (en) * | 2021-06-30 | 2023-01-06 | 삼성에스디아이 주식회사 | Secondary battery |
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| CN111477791A (en) * | 2020-03-31 | 2020-07-31 | 惠州市恒泰科技股份有限公司 | Button cell |
| CN115395149B (en) * | 2022-09-30 | 2024-06-07 | 路华置富电子(东莞)有限公司 | Laminated button cell with ruffle structure |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109065822B (en) | 2024-04-05 |
| WO2020056879A1 (en) | 2020-03-26 |
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