CN207009536U - A kind of positive pole of lithium ion battery - Google Patents
A kind of positive pole of lithium ion battery Download PDFInfo
- Publication number
- CN207009536U CN207009536U CN201720669760.0U CN201720669760U CN207009536U CN 207009536 U CN207009536 U CN 207009536U CN 201720669760 U CN201720669760 U CN 201720669760U CN 207009536 U CN207009536 U CN 207009536U
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- CN
- China
- Prior art keywords
- positive pole
- lithium ion
- ion battery
- otic placode
- battery
- 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.)
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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
Abstract
This hair utility model provides a kind of positive pole of lithium ion battery, it is low mainly to solve the existing production qualification rate of prior art, the caducous technical problem of lug, it considerably improves battery cap and the connection of lug connects intensity, the production difficulty of lithium ion battery is reduced, improves the production efficiency of lithium ion battery；Including battery cap and positive pole ear, there is an otic placode to hang down in battery cap, and the otic placode to hang down is formed in one with battery cap, and positive pole ear is welded on the otic placode of battery cap；When so the advantages of is positive pole ear by downward gravity, will not there was only the side stress of solder joint, but the common stress of whole solder joint, significantly improve the stress limit.
Description
Technical field
The component of lithium ion battery is the utility model is related to, particularly a kind of positive pole of lithium ion battery.
Background technology
Lithium ion battery is with the features such as its is in light weight, capacity is high, operating voltage is high, service life is long and pollution is few in hand
The 3C such as machine, notebook computer fields are developed rapidly, and its global marketing volume has been over the summation of ni-mh, nickel-cadmium cell,
China's Development of Electric Vehicles is rapid in recent years, and volume of production and marketing reaches the whole world first.
With the demand growth of electric automobile, higher requirement is proposed to lithium ion battery, it is desirable to which the structure of battery is steady
It is fixed, uniformity is good, safe and reliable, so it is urgent work constantly to improve the material of lithium ion battery, technique, equipment.
In the positive pole production process of lithium ion battery need positive pole ear and cap to be attached, typically using Laser Welding
The mode that connects is realized.The method typically used is to be welded a point multiple scattered solder joints between electrode tabs and cap, this
The advantages of sample is done is the firmness of enhancing structure, and when one of solder joint comes off, remaining solder joint can still support battery
Work on, but lithium ion battery increasingly minimizes now, internal structure must accomplish sufficiently compact just to can guarantee that electric capacity
Amount, so the width of lug is often narrow, if still often increasing the probability being partially welded using scattered solder joint design,
Solder joint is often in the boundary of lug, or even runs out of the plate face of lug, and the qualification rate of welding is had a greatly reduced quality.In addition when use
During, as shown in figure Fig. 1, lug is influenceed by gravity, and the side of solder joint can concentrate stress, and gravity can be slow from side by solder joint
Slow tear, so as to cause solder joint to come off, if the solder joint between lug and cap has one to come off, remaining solder joint often takes off in succession
Fall, because one of them, which comes off, can cause the unstable of structure, remaining solder joint is insufficient to carry stress.
Utility model content
The purpose of this utility model is to provide a kind of positive pole of lithium ion battery.Mainly solve above-mentioned prior art to be deposited
Low in production qualification rate, the caducous technical problem of lug, it considerably improves the bonding strength of battery cap and lug, drop
The low production difficulty of lithium ion battery, improve the production efficiency of lithium ion battery.
To achieve the above object, the technical solution of the utility model is：
A kind of positive pole of lithium ion battery, including battery cap and positive pole ear, the battery cap hang down in the presence of one
Otic placode, the otic placode to hang down is formed in one with battery cap, and the positive pole ear is welded on the otic placode of battery cap.
When so the advantages of is positive pole ear by downward gravity, will not there was only the side stress of solder joint, but whole solder joint jointly by
Power, significantly improve the stress limit.
As a kind of preferred scheme of the positive pole of lithium ion battery, the otic placode of the positive pole ear and battery cap it
Between connection welding be two.
As a kind of preferred scheme of the positive pole of lithium ion battery, the otic placode of the positive pole ear and battery cap it
Between connection be one section of strip solder joint continuously welded.
Brief description of the drawings
Fig. 1 is the force diagram of the positive pole of lithium ion battery under normal circumstances.
Fig. 2 is the structural representation of the positive pole of the utility model lithium ion battery.
Fig. 3 is the structural representation of the positive pole another embodiment of the utility model lithium ion battery.
Embodiment
The utility model discloses a kind of positive pole of lithium ion battery.Including battery cap 1 and positive pole ear 2, the electricity
There is an otic placode 11 to hang down in pond cap 1, the otic placode 11 to hang down is formed in one with battery cap 1, the positive pole pole
Ear 2 is welded on the otic placode 11 of battery cap 1.When so the advantages of is positive pole ear 2 by downward gravity, will not there was only solder joint
Side stress, but the whole common stress of solder joint significantly improves the stress limit.
As a kind of preferred scheme of the positive pole of lithium ion battery, the otic placode of the positive pole ear 2 and battery cap 1
Connection welding between 11 is two.As shown in Figure 2.
As a kind of preferred scheme of the positive pole of lithium ion battery, the otic placode of the positive pole ear 2 and battery cap 1
Connection between 11 is one section of strip solder joint continuously welded.As shown in Figure 3.
It is only preferred embodiment of the present utility model in summary, is not used for limiting implementation model of the present utility model
Enclose.The equivalent changes and modifications that i.e. all contents according to present utility model application the scope of the claims are made, all should be of the present utility model
Technology category.
Claims (3)
1. a kind of positive pole of lithium ion battery, including battery cap (1) and positive pole ear (2), it is characterised in that：The battery post
There is an otic placode to hang down (11) in cap (1), the otic placode (11) to hang down is formed in one with battery cap (1), it is described just
Pole lug (2) is welded on the otic placode (11) of battery cap (1).
A kind of 2. positive pole of lithium ion battery according to claim 1, it is characterised in that：The positive pole ear (2) and electricity
Connection welding between the otic placode (11) of pond cap (1) is two.
A kind of 3. positive pole of lithium ion battery according to claim 1, it is characterised in that：The positive pole ear (2) and electricity
Connection between the otic placode (11) of pond cap (1) is one section of strip solder joint continuously welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720669760.0U CN207009536U (en) | 2017-06-10 | 2017-06-10 | A kind of positive pole of lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720669760.0U CN207009536U (en) | 2017-06-10 | 2017-06-10 | A kind of positive pole of lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207009536U true CN207009536U (en) | 2018-02-13 |
Family
ID=61446499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720669760.0U Active CN207009536U (en) | 2017-06-10 | 2017-06-10 | A kind of positive pole of lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207009536U (en) |
-
2017
- 2017-06-10 CN CN201720669760.0U patent/CN207009536U/en active Active
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant |