CN206059520U - Battery - Google Patents
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- Publication number
- CN206059520U CN206059520U CN201620963367.8U CN201620963367U CN206059520U CN 206059520 U CN206059520 U CN 206059520U CN 201620963367 U CN201620963367 U CN 201620963367U CN 206059520 U CN206059520 U CN 206059520U
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- China
- Prior art keywords
- lug
- pole
- coupling part
- collector
- metal foil
- Prior art date
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- 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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- Connection Of Batteries Or Terminals (AREA)
Abstract
The application is related to battery.Battery includes top cover, first collector and some naked battery cores, each described naked battery core includes the first lug and the second lug, first lug is located at a sidepiece of the naked battery core and including the first lamellar laminated portions, second lug is located at the other side of the naked battery core and including the second lamellar laminated portions, the top cover includes the first pole and the second pole, first collector is the first flexible body, including the first pole coupling part and the first lug coupling part that are connected, the first pole coupling part is connected with first pole, the first lug coupling part is connected with the first lamellar laminated portions, second pole is electrically connected with second lug.Using the program, reduce naked battery core enters shell difficulty.
Description
Technical field
The application is related to cell art, more particularly to a kind of battery.
Background technology
Battery includes naked battery core, collector, top cover and shell, and naked battery core is encapsulated in the receipts that top cover and shell are formed
Receive in space.Naked battery core is typically formed by the first pole piece and the second pole piece coiling, and the first pole piece is at the edge of uncoated slurry
Place's winding forms the first lug.Include the first pole and the second pole on top cover, the first lug passes through collector and the first pole
Connection, the second pole is connected with the second pole piece by the second lug, so as to realize the output of naked battery core electric energy.
Above-mentioned battery, collector are connected with the first tab welding, during welding, need to push down the first lug with welding tooling
And collector, and the pressure that welding tooling is put on collector can cause the different degrees of deformation of collector, due to collector
For hard structure, which can be offset with naked battery core after collector deformation and enter shell position, cause naked electricity in follow-up assembling process
It is difficult that core enters shell.
It is, therefore, desirable to provide a kind of improvement project solves drawbacks described above.
Utility model content
This application provides a kind of battery, it is possible to decrease naked battery core enters shell difficulty.
A kind of battery, including top cover, the first collector and some naked battery cores, each described naked battery core include the first lug
And second lug, first lug is located at a sidepiece of the naked battery core and including the first lamellar laminated portions, institute
The second lug is stated positioned at the other side of the naked battery core and including the second lamellar laminated portions, the top cover includes the first pole
Post and the second pole,
First collector is the first flexible body, and is connected including the first pole coupling part and the first lug being connected
Socket part point, the first pole coupling part is connected with first pole, the first lug coupling part and described first
Lamellar laminated portions connect,
Second pole is electrically connected with second lug.
Preferably, the first pole coupling part has the first pole connection end, the first lug coupling part tool
There is the first lug connection end,
The first pole coupling part is connected with first pole by the first pole connection end, and described first
Lug coupling part is connected with first lug by the first lug connection end,
First flexible body be metal foil laminate, if the metal foil laminate by dried layer metal foil layer along its thickness
Direction stacks together, if metal foil layer described in dried layer is respectively in the first lug connection end and the first pole connection end
It is fixed, it is separated from one another in remainder.
Preferably, the first lug connection end is fixed as one with the first pole connection end.
Preferably, the quantity of the first lug coupling part is two, and two the first lug coupling parts are to remote
Extend from mutual side, and each described first lug coupling part being capable of the first lamellar laminated portions company described with
Connect.
Preferably, the first lug coupling part at least include two sub- linkage sections, each described sub- linkage section only by
The part metal foil layer stratification, each described sub- linkage section the first lamellar laminated portions described with can connect respectively
Connect.
Preferably, the metal foil layer for forming a sub- linkage section is no longer participate in forming remaining described sub- connection
Section.
Preferably, through hole is offered on the first pole connection end, first pole includes boss, the boss
It is embedded in the through hole and is welded to connect.
Preferably, also including the second collector, second collector is the second flexible body,
Second collector includes the second pole coupling part being connected and the second lug coupling part, described second
Pole coupling part is connected with second pole, and the second lug coupling part is connected with the second lamellar laminated portions
Connect.
Preferably, the second pole coupling part has the second pole connection end, the second lug coupling part tool
There is the second lug connection end, second flexible body is metal foil laminate, if the metal foil laminate is by dried layer metal forming
Layer stacks together along its thickness direction, if metal foil layer described in dried layer is respectively in the second lug connection end and described second
Pole connection end is fixed, separated from one another in remainder.
Preferably, the first pole coupling part and the first lug coupling part vertical connection.
The technical scheme that the application is provided can reach following beneficial effect：
The battery that the application is provided, including the first collector, the first collector include the first lug coupling part, this programme
First collector is set to into flexible body, when the first lug coupling part is connected with the lamellar laminated portions of the first lug, though
So under the pressure effect of welding tooling, the first collector can also deform and may cause naked battery core skew.But, due to
Flexible body has multiple degree of freedom, and which can be bent into any angle, and after the completion of welding, the deformation of the first collector can be with
Replied by itself flexibility, and can make that naked battery core resets into it is original enter shell position so that naked battery core enters
Shell difficulty is reduced.
It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary, this can not be limited
Application.
Description of the drawings
The connection diagram of the embodiment one and the first pole of the first collector that Fig. 1 is provided by the embodiment of the present application；
The axonometric chart of the embodiment one of the first collector that Fig. 2 is provided by the embodiment of the present application；
The deformation schematic diagram of the embodiment one of the first collector that Fig. 3 is provided by the embodiment of the present application；
The axonometric chart of the embodiment two of the first collector that Fig. 4 is provided by the embodiment of the present application；
The connection diagram of the embodiment two and the first pole of the first collector that Fig. 5 is provided by the embodiment of the present application；
The first collector and the first pole and the second collector and the second pole that Fig. 6 is provided by the embodiment of the present application
Connection diagram；
The sectional view of the battery that Fig. 7 is provided by the embodiment of the present application.
Reference：
10- top covers；
The first poles of 101-；
101a- boss；
The second poles of 102-；
The first collectors of 20-；
The first poles of 201- coupling part；
The first poles of 2011- connection end；
2011a- through holes；
The first lugs of 202- coupling part；
The first lugs of 2021- connection end；
The second collectors of 30-.
During accompanying drawing herein is merged in description and the part of this specification is constituted, show the enforcement for meeting the application
Example, and be used for explaining the principle of the application together with description.
Specific embodiment
Below by specific embodiment and combine accompanying drawing the application is described in further detail.
As shown in figure 1, the embodiment of the present application provides a kind of battery, including top cover 10, the first collector 20 and some
Naked battery core (not shown).Each naked battery core includes the first lug, the second lug and the first pole piece, the second pole piece.First
Pole piece and the second pole piece include being coated with active material layer region and uncoated active material layer region, and naked battery core can be led to
Cross the first pole piece and the second pole piece coiling or it is stacked form, the first pole piece and the second pole piece coiling or it is stacked after, the
The uncoated active material layer region of one pole piece forms the first lug, and on the second pole piece, uncoated active material layer region is formed
Second lug, the first lug and the second lug are located at a sidepiece of naked battery core respectively and are oppositely arranged.
For winding battery core, the first lug is included positioned at first arch section at the first lug two ends and positioned at first
The first lamellar laminated portions in the middle part of lug, the second lug include positioned at the second lug two ends the second arch section and be located at the
The second lamellar laminated portions in the middle part of two lugs.Wherein, for the ease of follow-up welding and alleviation winding stress, it is also possible in volume
Around cutting off the first arch section and the second arch section afterwards.For laminated batteries, the uncoated active matter of the first pole piece
Matter area level poststack forms the first lug, and the uncoated active substance area level poststack of the second pole piece forms the second lug, also,
First lug and the second lug only include lamellar laminated portions.
When battery includes multiple naked battery cores, multiple naked battery cores are generally stacked along its thickness direction, also, same pole
First lug of property is respectively positioned on the same sidepiece of naked battery core, and the second lug of identical polar is respectively positioned on the same side of naked battery core
Portion.First lug and the second lug are stretched out from naked battery core respectively, it is possible to achieve the output of electric energy in naked battery core.Such as Fig. 1 institutes
Show, top cover 10 includes the first pole 101, the first pole 101 is connected with the first lug via the first collector 20.
As shown in Fig. 2 the first collector 20 is the first flexible body, which includes the first pole coupling part 201 being connected
With the first lug coupling part 202, the first pole coupling part 201 has the first pole connection end 2011, the connection of the first pole
End 2011 is connected with the first pole 101, and the first lug coupling part 202 has the first lug connection end 2021, and the first lug connects
Connect end 2021 to electrically connect with the first lamellar laminated portions.In the present embodiment, preferably the first pole coupling part 201 and the first pole
202 vertical connection of ear coupling part.After being arranged such, can be according to the position of the first lug, by the first lug coupling part 202
Bent with respect to the first pole coupling part 201 in vertical manner, the first lug coupling part 202 and the first lamellar after bending
Laminated portions are parallel, so as to facilitate connection between the two.
In above-mentioned scheme, when the first collector 20 is using the first flexible body, under the pressure effect of welding tooling,
The first flexible collector 20 can also deform, and may cause naked battery core skew.But, it is soft due to the first flexible body
Property makes it have multiple degree of freedom, and after the completion of welding, the deformation of the first collector 20 can also obtain extensive by itself flexibility
It is multiple, and can make that naked battery core resets into it is original enter shell position so that naked battery core enters the reduction of shell difficulty.
As shown in figure 3, the first collector 20 can select flexible circuit conductor or soft establishment line etc..In the present embodiment, first is flexible
Body is preferably metal foil laminate.Specifically, if metal foil laminate is stacked together along its thickness direction by dried layer metal foil layer,
And if dried layer metal foil layer is fixed in the first lug connection end 2021 and the first pole connection end 2011 respectively, in its remaining part
Divide separated from one another.Metal foil laminate has flexibility, after the pressure of welding tooling is revoked, metal foil laminate at separation
Can by itself it is flexible reply deformation, and drive naked battery core to reset into initial makeup location, enter shell so as to reduce naked battery core
Difficulty.
And preferably, the connection of the first flexible body and the first pole 101 and the first lug for convenience, the present embodiment
In, preferably the first lug connection end 2021 is fixed as one with the first pole connection end 2011.The integral structure can pass through
The modes such as crimping, riveting are realized.In the present embodiment, the first lug connection end 2021 and the first pole connection end 2011 are by weldering
Connect to form integral structure.Also, when the thickness of the first collector 20 is less, can also further preferred first pole connection end
2011 and first pole 101 welded using laser penetration, weld strength is reliable and damages little.
Further, as shown in Figure 1-2, in order to increase weld strength, the present embodiment is further preferably in the first pole connection end
Through hole 2011a is offered on 2011, correspondingly, boss 101a on the first pole 101, is included, boss 101a is embedded in through hole
2011a is interior and is welded to connect, and this scheme causes the outer surface of boss 101a to be connected with the inwall of through hole 2011a, so as to increase
Add the connection area of the first pole connection end 2011 and the first pole 101, improve the reliability of both connections.Wherein, lead to
The diameter of hole 2011a is set according to the currents match passed through by the diameter and the first pole 101 of the boss 101a of the first pole 101
Put.
Additionally, as shown in Figures 4 and 5, in order to reduce the quantity of the first collector 20, the internal structure of battery, this reality are simplified
Apply example and be also preferably provided with two the first lug coupling parts 202, two the first lug coupling parts 202 are directed away from mutual one
Side extends, and each first lug coupling part 202 can be connected with a first lamellar laminated portions.After being arranged such, when
When battery includes multiple naked battery cores, each first collector 20 can be connected with two the first lugs respectively, reduce the first current collection
The usage quantity of part 20.
The set-up mode of two the first lug coupling parts 202 can adopt the first lug of following examples one, i.e., two
Coupling part 202 is oppositely extending, and forms " T " shape structure with the first pole coupling part 201, and wherein " T " shape structure is vertical
Section is the first pole coupling part 201, and the horizontal segment of " T " shape structure is respectively two the first lug coupling parts 202.
Additionally, the set-up mode of two the first lug coupling parts 202 can adopt following examples two, two the first poles
Ear coupling part 202 and the first pole coupling part 201 form Y-shaped structure.Y-shaped structural vertical section connects for the first pole
Part 201, the son field of top both sides are respectively two the first lug coupling parts 202.
And more preferably, for the first collector 20 formed using metal foil laminate, further can also increase
The quantity of the first lug that each first lug coupling part 202 can connect.Specifically, it is some in metal foil laminate
In layer metal foil layer, can be with least two sub- linkage section of stratification, using which part metal foil layer per individual sub- linkage section all
Can be connected with a first lamellar laminated portions respectively.Such setting can be on each first lug coupling part 202
Many sub- linkage sections are respectively formed, to save the inner space of battery, simplify inside battery structure.
When each first lug coupling part 202 forms many sub- linkage sections, the son that two of which can be adopted adjacent
Linkage section common sparing metal foil layer.In the present embodiment, in order to ensure each sub- linkage section and the first lamellar laminated portions
Be reliably connected, be preferably formed as the metal foil layer of a sub- linkage section not with form its minor linkage section metal foil layer and share so that
Each metal foil layer only belongs to a sub- linkage section, to reduce the fault rate of electrical connection, improves reliability.
As shown in fig. 6, top cover also includes the second pole 102, the battery that the application is provided also includes the second collector 30, the
Two lugs are connected with the second pole 102 via the second collector 30.
Second collector 30 is referred to the setting of the first collector 20, also, the second collector 30 is preferably arranged to
Second flexible body.Second collector 30 includes the second pole coupling part being connected and the second lug coupling part, the second pole
Post coupling part is connected with the second pole, and the second lug coupling part is connected with the second lamellar laminated portions.The program causes naked
The second lug in battery core is connected with the second pole 102 via the second collector 30, and in the flexible connection of the second collector 30
Under, naked battery core enters shell difficulty and further can reduce.
Similarly, the second collector 30 can also be preferably arranged to metal foil laminate, if metal foil laminate is by dried layer
Metal foil layer stacks together along its thickness direction, if dried layer metal foil layer connects in the second lug connection end and the second pole respectively
Connect end to fix, it is separated from one another in remainder.The set-up mode of the second collector 30 and the first collector 20 in the present embodiment
It is essentially identical, and there is identical technique effect, will not be described here.
In the application, the first collector 20 and the second collector 30 are respectively adopted aluminium foil layer stack and Copper Foil duplexer, aluminum
Layers of foil stack preferably 1060 materials, can be applicable to positive pole, and the preferred T2 materials of Copper Foil duplexer can be applicable to negative pole.And every layer of copper
The thickness of paper tinsel or aluminium foil can be chosen in the range of 0.1mm～0.5mm, and which is flexible preferably.
As shown in fig. 7, battery also includes that shell, shell and top cover 10 connect and forms the receiving sky for accommodating naked battery core
Between.Explosion-proof valve and liquid injection hole are provided with top cover 10.First lug and the second lug are oppositely arranged on the sidepiece of naked battery core, the
One pole 101 is connected with the first lug by the first collector 20, and the second pole 102 passes through the second collector 30 and the second lug
Connection.
The preferred embodiment of the application is the foregoing is only, the application is not limited to, for the skill of this area
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. a kind of battery, including top cover, the first collector and some naked battery cores, each described naked battery core include the first lug with
And second lug, first lug is located at a sidepiece of the naked battery core and including the first lamellar laminated portions, described
Second lug is located at the other side of the naked battery core and including the second lamellar laminated portions, and the top cover includes the first pole
With the second pole,
Characterized in that,
First collector is the first flexible body, and including the first pole coupling part and the first lug connecting portion being connected
Point, the first pole coupling part is connected with first pole, the first lug coupling part and first lamellar
Laminated portions connect,
Second pole is electrically connected with second lug.
2. battery according to claim 1, it is characterised in that the first pole coupling part connects with the first pole
End, the first lug coupling part have the first lug connection end,
The first pole coupling part is connected with first pole by the first pole connection end, first lug
Coupling part is connected with first lug by the first lug connection end,
First flexible body be metal foil laminate, if the metal foil laminate by dried layer metal foil layer along its thickness direction
Stack together, if metal foil layer described in dried layer is solid in the first lug connection end and the first pole connection end respectively
It is fixed, it is separated from one another in remainder.
3. battery according to claim 2, it is characterised in that the first lug connection end is connected with first pole
End fixes as one.
4. battery according to claim 2, it is characterised in that the quantity of the first lug coupling part is two, two
The individual first lug coupling part extends to side away from each other, and each described first lug coupling part can be with one
The individual first lamellar laminated portions connection.
5. battery according to claim 4, it is characterised in that the first lug coupling part at least including two sons even
Connect section, each described sub- linkage section only by the part metal foil layer stratification, each described sub- linkage section can respectively with
One the first lamellar laminated portions connection.
6. battery according to claim 5, it is characterised in that form the metal foil layer of a sub- linkage section not
Participate in again forming remaining described sub- linkage section.
7. battery according to claim 2, it is characterised in that offer through hole on the first pole connection end, it is described
First pole includes boss, and the boss is embedded in the through hole and is welded to connect.
8. battery according to claim 1 and 2, it is characterised in that also including the second collector, second collector is
Second flexible body,
Second collector includes the second pole coupling part being connected and the second lug coupling part, second pole
Coupling part is connected with second pole, and the second lug coupling part is connected with the second lamellar laminated portions.
9. battery according to claim 8, it is characterised in that the second pole coupling part connects with the second pole
End, the second lug coupling part have the second lug connection end, second flexible body be metal foil laminate, the gold
If category layers of foil stack is stacked together along its thickness direction by dried layer metal foil layer, if metal foil layer described in dried layer is respectively described the
Two lug connection ends and the second pole connection end are fixed, separated from one another in remainder.
10. battery according to claim 1 and 2, it is characterised in that the first pole coupling part and described first
Lug coupling part vertical connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620963367.8U CN206059520U (en) | 2016-08-29 | 2016-08-29 | Battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620963367.8U CN206059520U (en) | 2016-08-29 | 2016-08-29 | Battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206059520U true CN206059520U (en) | 2017-03-29 |
Family
ID=58382580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620963367.8U Active CN206059520U (en) | 2016-08-29 | 2016-08-29 | Battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206059520U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106207269A (en) * | 2016-08-29 | 2016-12-07 | 宁德时代新能源科技股份有限公司 | Battery with a battery cell |
-
2016
- 2016-08-29 CN CN201620963367.8U patent/CN206059520U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106207269A (en) * | 2016-08-29 | 2016-12-07 | 宁德时代新能源科技股份有限公司 | Battery with a battery cell |
| CN106207269B (en) * | 2016-08-29 | 2019-06-07 | 宁德时代新能源科技股份有限公司 | Battery with a battery cell |
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