CN205921036U - Battery - Google Patents
Battery Download PDFInfo
- Publication number
- CN205921036U CN205921036U CN201620974655.3U CN201620974655U CN205921036U CN 205921036 U CN205921036 U CN 205921036U CN 201620974655 U CN201620974655 U CN 201620974655U CN 205921036 U CN205921036 U CN 205921036U
- Authority
- CN
- China
- Prior art keywords
- lug
- pole
- connection end
- reserved part
- collector
- 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.)
- Withdrawn - After Issue
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Classifications
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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
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model relates to a battery. Battery includes top cap, naked electric core, first current collection spare and battery shell, the top cap and the battery shell forms and accomodates the space of naked electric core, the top cap includes first ploe post and second ploe post, naked electric core includes first ploe ear and second ploe ear, the first ploe ear is located a lateral part of naked electric core, the second ploe ear is located another lateral part of naked electric core, first current collection spare is including the first ploe support connnection end that sets gradually, first reserved part and first ploe ear link, first ploe support connnection end with the first ploe post links to each other, first ploe ear link with the first ploe ear links to each other, first reserved part can the action of gravity of naked electric core expandes down and the extension, the second ploe post with second ploe ear electricity is connected. The scheme has reduced the deformation of upper cover under the action of gravity of naked battery cell, has prolonged battery's life.
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 top cover and battery case is formed
Accommodation space in.Naked battery core is typically formed by the first pole piece and the second pole piece coiling, uncoated after the first pole piece coiling
The edge of slurry forms the first lug.First pole and the second pole are included on top cover, the first lug passes through collector and the
One pole connects, and the second pole is connected with the second pole piece by the second lug, thus realizing the output of naked battery core electric energy.
In the structure of above-mentioned battery, in order to ensure that naked battery core is successfully encapsulated in what top cover and battery case were formed
In accommodation space, the overall dimensions that naked battery core is connected in tailing edge battery case short transverse by the first lug with collector should be little
In the size in battery case inner height direction, such guarantee top cover and battery case smoothly fasten.However, when collector with
After the first pole on top cover connects, because this overall dimensions is little, so that naked battery core is chronically in battery case vacantly again
State, the active force that naked battery core puts on top cover for a long time is easy to make top cover deform, and leads to battery failure.
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, the deformation of top cover can be reduced, extend the life-span of battery.
This application provides a kind of battery, including top cover, naked battery core, the first collector and battery case, described top cover
And described battery case forms the space receiving described naked battery core, described top cover includes the first pole and the second pole,
Described naked battery core includes the first lug and the second lug, and described first lug is located at a side of described naked battery core
Portion, described second lug is located at another sidepiece of described naked battery core, and described first collector includes the first pole setting gradually
Post connection end, the first reserved part and the first lug connection end, described first pole connection end is connected with described first pole,
Described first lug connection end is connected with described first lug,
Described first reserved part can be launched under the action of gravity of described naked battery core and extend,
Described second pole is electrically connected with described second lug.
Preferably, described first reserved part is made up of some metal foil layers, some described metal foil layer through-thickness
It is stacked, and independently of one another, some described metal foil layers bend to its thickness direction.
Preferably, described first collector is made up of some metal foil layers, some described metal foil layer through-thickness layers
Folded setting, the two ends of some described metal foil layers all fix as one, and form described first pole connection end and described first
Lug connection end, the middle part of some described metal foil layers independently of one another, and to the bending of its thickness direction, forms described first and reserves
Part.
Preferably, the expansion direction of described first reserved part is consistent with the gravity direction of described naked battery core.
Preferably, described first reserved part includes at least two sub- bending segments, between two neighboring described sub- bending segment
The angle being formed is acute angle, obtuse angle, right angle or arc chord angle.
Preferably, described first pole connection end offers through hole, described first pole includes boss, and described boss is embedding
It is located in described through hole and be welded to connect.
Preferably, also include the second collector, described second pole is via described second collector and described second lug
Connect, described second collector has the second reserved part,
Described second reserved part can be launched under the action of gravity of described naked battery core and extend.
Preferably, the bearing of trend of described first pole connection end is vertical with the bearing of trend of described first reserved part,
The bearing of trend of described first lug connection end is consistent with the bearing of trend of described first reserved part.
Preferably, the quantity of described first lug connection end and described first reserved part is two, described in two
First reserved part extends to direction away from each other respectively, two described first lug connection ends respectively described with first
Reserved part connects.
Preferably, described first reserved part is connecting wire.
The technical scheme that the application provides can reach following beneficial effect:
The battery that the application provides, the first collector includes the first pole connection end, the first reserved part connecting successively
And the first lug connection end, the first pole is connected with the first pole connection end, the first lug is connected with the first lug connection end,
First reserved part can be launched under the action of gravity of naked battery core and extend, when naked battery core is encapsulated in top cover and battery case
Fasten formed accommodation space when, by the first reserved part launch and extend naked battery core can be enable to contact outside battery
Shell, improves vacant state in battery case for the naked battery core, reduces deformation under the action of gravity of naked battery core for the top cover, prolongs
Grow the service life of battery unit.
It should be appreciated that above general description and detailed description hereinafter are only exemplary, can not be limited this
Application.
Brief description
The embodiment one of the first collector that Fig. 1 is provided by the embodiment of the present application and the connection diagram of top cover；
The embodiment one of the first collector that Fig. 2 is provided by the embodiment of the present application and the connection diagram of the first lug；
The schematic diagram of the embodiment one of the first collector that Fig. 3 is provided by the embodiment of the present application；
The first collector that Fig. 4 is provided by the embodiment of the present application and the second collector respectively with the first pole and
The connection diagram of two poles；
The deformation schematic diagram of the embodiment one of the first collector that Fig. 5 is provided by the embodiment of the present application；
The axonometric chart of the embodiment two of the first collector that Fig. 6 is provided by the embodiment of the present application；
The sectional view of the battery that Fig. 7 is provided by the embodiment of the present application.
Reference:
10- top cover；
101- first pole；
101a- boss；
102- second pole；
20- first collector；
201- the first pole connection end；
201a- through hole；
202- first reserved part；
203- the first lug connection end；
30- second collector；
40- first lug.
Accompanying drawing herein is merged in description and constitutes the part of this specification, shows the enforcement 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.
This application provides a kind of battery, including naked battery core.Each naked battery core includes the first lug, the second lug and
One pole piece, the second pole piece.First pole piece and the second pole piece all include being coated with active material layer region and uncoated active matter
Matter layer region, naked battery core can by the first pole piece and the second pole piece coiling or stacked form, the first pole piece and the second pole
After piece winds or be stacked, form the first lug in the uncoated active material layer region of the first pole piece, on the second pole piece not
Coating active material layer region forms the second lug, the first lug and the second lug be located at respectively naked battery core a sidepiece and
It is oppositely arranged.
For winding battery core, the first lug includes the first arch section positioned at the first lug two ends and is located at first
The first lamellar laminated portions in the middle part of lug, the second lug includes the second arch section positioned at the second lug two ends and is 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 to roll up
Excise the first arch section and the second arch section around 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, and,
First lug and the second lug only include lamellar laminated portions.
When battery includes multiple naked battery core, multiple naked battery cores are generally stacked along its thickness direction, and, 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 stretch out respectively from naked battery core, it is possible to achieve the output of electric energy in naked battery core.
As shown in Figure 1-2, this battery also includes top cover 10, the first collector 20 and battery case.Top cover 10 and electricity
Pond shell forms accommodation space after fastening, and this accommodation space is used for encapsulating naked battery core.
First pole 101 is included on top cover 10, the first pole 101 is connected with the first lug 40 by the first collector 20.
Specifically, the first collector 20 includes the first pole connection end 201, the first reserved part 202 and first setting gradually
Lug connection end 203, the first pole connection end 201 is connected with the first pole 101, the first lug connection end 203 and the first lug
40 are connected.Wherein, the first reserved part 202 can be launched under the action of gravity of naked battery core and extend, when naked battery core is packed
In the accommodation space that top cover 10 and battery case are formed, naked battery core can contact battery case bottom, and more properly, is
Avoid naked battery core to contact with shell to cause short circuit, between shell and naked battery core, be additionally provided with insulator, naked battery core with should
Insulator contacts.In the program, the setting of the first reserved part 202 makes naked battery core be no longer on hanging shape in battery case
State is so that battery will not reduce the action of gravity in naked battery core for the top cover 10 to top cover 10 to apply active force in the course of the work
Under deformation, extend the service life of battery.
And, as shown in figures 1 and 3, in order to ensure being reliably connected of the first pole connection end 201 and the first pole 101,
According to an embodiment, through hole 201a can also be opened up in the first pole connection end 201, and correspondingly, on the first pole 101
Setting boss 101a, boss 101a are inlaid in through hole 201a and are welded to connect.By the setting of boss 101a and through hole 201a, and
Both are welded, so that the outer surface of boss 101a is engaged with the inwall of through hole 201a, increased between the two
Connection area, thus increase the reliability connecting between the first pole connection end 201 and the first pole 101.Wherein, through hole
The diameter of 201a can be arranged according to the currents match that the diameter of boss 101a and the first pole 101 are passed through, and boss
101a and through hole 201a can adopt laser welding, and weld strength is reliable, and welding damage is little.
Additionally, as shown in figure 4, top cover 10 also includes the second pole 102, the second pole 102 is connected with the second lug.This Shen
Please the attachment structure of the second pole 102 and the second lug is not limited.In the present embodiment, preferably this battery also includes the second collection
Electric part 30, the second pole 102 is connected with the second lug via the second collector 30.And, the second collector 30 is referred to
The set-up mode of one collector 20, is again provided with the second reserved part on the second collector 30, and the second reserved part has
With the first reserved part 202 identical technique effect, will not be described here.By the setting of the second collector 30 so that naked electricity
Core near the second lug side also can with battery case in insulator reliable contacts, further reduce top cover 10 and exist
Deformation under the action of gravity of naked battery core, extends the service life of battery.
In the application, the first reserved part 202 can be realized by way of the flexible connecting wire of setting.For example,
First connecting wire is in rolled state, now, naked battery core can smoothly load battery case, when naked battery core and the first pole
After 101 connect, connecting wire can be at deployed condition again, realizes the contact of naked battery core and the insulator in battery case.However,
Consider the uncertainty of flexible circuit conductor position in battery case, may lead to inside battery that the faults such as short circuit occur.The present embodiment
In, as shown in Fig. 2, Fig. 3 and Fig. 5, the preferably first reserved part 202 is made up of some metal foil layers, some metal foil layer edges
Thickness direction is stacked, and wherein, is mutually independent and the direction bending to its thickness between each metal foil layer.So
After setting, on the one hand, metal foil layer has flexibility because its own thickness is less；On the other hand, some metal foil layers is folded
Put and metastable position can be maintained at, without contacting and the fault that is short-circuited with battery case.Additionally, this reality
Apply in example, the expansion of the first reserved part 202 and elongation are the expansion of bending and elongations by being formed along its thickness direction
To realize, this structure is simple, to launch and elongation is convenient.
As shown in Fig. 3, Fig. 5 and Fig. 6, the first collector 20 can also be arranged to integral structure, the first collector 20
Entirety is made up of some metal foil layers.Specifically, some metal foil layers of composition the first collector 20 are along the thickness direction of itself
It is stacked, the two ends of some metal foil layers are respectively and fixedly connected with and are integrated and are formed respectively the first pole connection end 201 and the first pole
Ear connection end 203, the middle part of some metal foil layers is independent toward each other and is bent to form the first reserved part to its thickness direction
202.The first collector 20 structure being arranged such is simple, and process for machining and manufacturing is simple.
According to above description, the first reserved part 202 be formed on metal foil layer to its thickness direction
Bending.This bending structure can have multiple set-up modes.For example, the first reserved part 202 includes at least two sub- bending segments, and
Be connected between two adjacent sub- bending segments and be in an angle, this angle can arrange at an acute angle, obtuse angle or right angle.The present embodiment
In, preferably this angle is arc chord angle, arc chord angle can reduce metal foil layer bending when damage, reduce its fracture or breakage wind
Danger.
Additionally, in order to ensure that the first reserved part 202 can be sufficiently spread out and extend, in the present embodiment, preferably first is pre-
Stay the expansion direction of part 202 consistent with the gravity direction of naked battery core.The program can avoid the first reserved part 202 in naked electricity
It is in the state of distortion, long-term distortion can lead to the first reserved part 202 larger in some stress under the action of gravity of core
Stress concentration in position, thus leading to the defects such as fatigue fracture.
In this regard, in the present embodiment, the expansion direction of the first reserved part 202 and naked battery core can be realized in the following way
Gravity direction consistent.Specifically, the bearing of trend of the bearing of trend of the first pole connection end 201 and the first reserved part 202
Vertically, and the bearing of trend of the first lug connection end 203 is consistent with the bearing of trend of the first reserved part 202.Below we
This is analyzed, first, when the first pole connection end 201 is connected with the first pole 101, the first pole connection end 201
In the lower section of top cover 10 and it is connected, now, the first reserved part 202 and the first lug connection end 203 with the first pole 101
All parallel with the lower surface of top cover 10.And in order to realize the connection of the first lug connection end 203 and the first lug 40, need
One lug connection end 203 bends near the direction of the first lug 40, due to the first pole connection end 201 and the first reserved part
202 be vertically arranged so that the first reserved part 202 can be easily curved from the position connecting with the first pole connection end 201
Folding close first lug 40.And, because the first reserved part 202 is consistent with the bearing of trend of the first lug connection end 203,
When the first lug connection end 203 extends towards the direction of the first lug 40, the first reserved part 202 is similarly towards the first pole
The direction of ear 40 extends, and now, the expansion direction of the first reserved part 202 is consistent with the gravity direction of naked battery core, thus realizing
Being sufficiently spread out and extend of first reserved part 202.
Certainly, realize the side of expansion direction this purpose consistent with the gravity direction of naked battery core of the first reserved part 202
Formula has multiple.For example, as long as ensureing the bearing of trend of the first lug connection end 203 and the bearing of trend of the first reserved part 202
Consistent, and the first pole connection end 201 and the first reserved part 202 can also out of plumb, for example, between the two can be with shape
Angle or obtuse angle angle etc. at an acute angle.
As shown in fig. 6, according to the attachment structure of the first collector 20 and the first lug 40, can also be preferably in the first current collection
Two the first lug connection ends 203 and two the first reserved parts 202 are arranged on part 20.Specifically, two first reserved portions
Divide 202 directions being respectively facing away from each other to extend, and portion is reserved with one first respectively in two the first lug connection ends 203
Divide 202 connections.According to an embodiment, the first collector 20 can be arranged to t shape structure, and the horizontal segment of t shape structure is respectively
Two the first lug connection ends 203, vertical section is the first pole connection end 201.According to another embodiment, the first collector
20 can be arranged to y shape structure, and two tilting sections of y shape structure are respectively two the first lug connection ends 203, and vertical section is the
One pole connection end 201.Such setting can be can be achieved with and two the first lugs 40 by first collector 20
Connect, simplify the internal structure of battery, save the inner space of battery.
Generally, between the first pole connection end 201 and top cover 10, should insulating part be set, prevent from being formed between the two and be electrically connected
Connect.
In the application, the first collector 20 and the second collector 30 can be respectively adopted aluminium foil layer or copper foil layer, aluminium foil layer
The metallic aluminium of middle employing preferably 1060 aluminum, can be applicable to positive pole, the metallic copper preferred t2 copper adopting in copper foil layer, can be applicable to bear
Pole.And the thickness of every layer of Copper Foil or aluminium foil can select 0.1mm～0.5mm, it is flexible preferably.
As shown in fig. 7, battery also includes shell, shell and top cover 10 connect and form the receiving sky 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, and
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
Connect.
The foregoing is only the preferred embodiment of the application, be not limited to the application, for the skill of this area
For art personnel, the application can have various modifications and variations.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, naked battery core, the first collector and battery case, outside described top cover and described battery
Hull shape become receive described naked battery core space, described top cover include the first pole and the second pole it is characterised in that
Described naked battery core includes the first lug and the second lug, and described first lug is located at a sidepiece of described naked battery core,
Described second lug is located at another sidepiece of described naked battery core, and described first collector includes the first pole setting gradually even
Connect end, the first reserved part and the first lug connection end, described first pole connection end is connected with described first pole, described
First lug connection end is connected with described first lug,
Described first reserved part can be launched under the action of gravity of described naked battery core and extend,
Described second pole is electrically connected with described second lug.
2. battery according to claim 1 is it is characterised in that described first reserved part is made up of some metal foil layers,
Some described metal foil layer through-thickness are stacked, and independently of one another, some described metal foil layers are curved to its thickness direction
Folding.
3. battery according to claim 1 is it is characterised in that described first collector is made up of some metal foil layers, if
Do described metal foil layer through-thickness to be stacked, the two ends of some described metal foil layers all fix as one, formed described
First pole connection end and described first lug connection end, the middle part of some described metal foil layers is independent of one another, and Xiang Qihou
The bending of degree direction, forms described first reserved part.
4. the battery according to any one of claim 1-3 it is characterised in that the expansion direction of described first reserved part with
The gravity direction of described naked battery core is consistent.
5. the battery according to any one of claim 1-3 is it is characterised in that described first reserved part includes at least two
Sub- bending segment, the angle being formed between two neighboring described sub- bending segment is acute angle, obtuse angle, right angle or arc chord angle.
6. the battery according to any one of claim 1-3 is it is characterised in that offer logical on described first pole connection end
Hole, described first pole includes boss, and described boss is embedded in described through hole and is welded to connect.
7. the battery according to any one of claim 1-3 is it is characterised in that also include the second collector, described second pole
Post is connected with described second lug via described second collector, and described second collector has the second reserved part,
Described second reserved part can be launched under the action of gravity of described naked battery core and extend.
8. the battery according to any one of claim 1-3 is it is characterised in that the bearing of trend of described first pole connection end
Vertical with the bearing of trend of described first reserved part, the bearing of trend of described first lug connection end reserves portion with described first
The bearing of trend dividing is consistent.
9. battery according to claim 8 is it is characterised in that portion is reserved in described first lug connection end and described first
The quantity divided is two, and two described first reserved parts extend to direction away from each other respectively, two described first poles
First reserved part described with one is connected respectively for ear connection end.
10. battery according to claim 1 is it is characterised in that described first reserved part is connecting wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620974655.3U CN205921036U (en) | 2016-08-29 | 2016-08-29 | Battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620974655.3U CN205921036U (en) | 2016-08-29 | 2016-08-29 | Battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205921036U true CN205921036U (en) | 2017-02-01 |
Family
ID=57869270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620974655.3U Withdrawn - After Issue CN205921036U (en) | 2016-08-29 | 2016-08-29 | Battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205921036U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299447A (en) * | 2016-08-29 | 2017-01-04 | 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 CN201620974655.3U patent/CN205921036U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299447A (en) * | 2016-08-29 | 2017-01-04 | 宁德时代新能源科技股份有限公司 | Battery with a battery cell |
| CN106299447B (en) * | 2016-08-29 | 2018-12-21 | 宁德时代新能源科技股份有限公司 | Battery with a battery cell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170201 Effective date of abandoning: 20181221 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20170201 Effective date of abandoning: 20181221 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |