CN203003335U - Foil pole lug lithium ion battery pole lug prewelding head - Google Patents
Foil pole lug lithium ion battery pole lug prewelding head Download PDFInfo
- Publication number
- CN203003335U CN203003335U CN2012207298145U CN201220729814U CN203003335U CN 203003335 U CN203003335 U CN 203003335U CN 2012207298145 U CN2012207298145 U CN 2012207298145U CN 201220729814 U CN201220729814 U CN 201220729814U CN 203003335 U CN203003335 U CN 203003335U
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- welding
- pole lug
- lithium ion
- prewelding
- head
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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
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Abstract
The utility model relates to the technical field of manufacture of lithium ion batteries, in particular to a foil pole lug lithium ion battery pole lug prewelding head. The foil pole lug lithium ion battery pole lug prewelding head comprises a welding head body in a U shape, wherein two end faces of the welding head are provided with ripples. The U-shaped structure guarantees the fact that once welding can achieve welding of two prewelding points simultaneously, production efficiency is improved, strict appearance consistency requirements of the two welding points and central symmetry requirements guarantee consistency of ultrasonic energy output of the two welding points, once welding achieves welding of the two welding points, the number of the welding points is reduced, risk of pole lug fatigue failures caused by vibration is reduced, pole lug deformation quantity caused by welding is reduced, and probability of pole lug damage of follow-up processing is reduced. In addition, the specific welding-head welding-point arrangement type and the structure guarantee welding strength and effectively prevent breakage and damage of pole lugs.
Description
Technical field
The utility model relates to the manufacturing technology field of lithium ion battery, relates in particular to a kind of paper tinsel lug lithium ion cell polar ear prewelding soldering tip.
Background technology
Along with the energy crisis in global range and problem of environmental pollution day by day serious, seek Green Sustainable new forms of energy oneself become the main development direction of energy field.Electric automobile is developed rapidly as a kind of new forms of energy vehicles of energy-conserving and environment-protective, lithium ion battery because of have energy density high, have extended cycle life, the advantage such as green non-pollution, make it become one of electrical source of power that gets most of the attention.But the security of high capacity lithium ion battery is one of subject matter of its development of restriction always, and under abuse conditions, in the situations such as high temperature, internal short-circuit, extruding, vibration, battery also can be smoldered, catch fire and even be exploded, and brings potential safety hazard to the user.Therefore the security that improves lithium ion battery is the main direction of electrokinetic cell research always.
Paper tinsel utmost point group lithium-ion-power cell is compared with traditional lithium ion battery, having that capacity is high, specific energy is high, internal resistance is little, recycle and wait often advantage, is the following application development directions in big-and-middle-sized electrical equipment aspect such as electric automobile, electric bicycle and electric tool.Lug prewelding operation closely connects as one lug, for next step welding end is laid good basis, but because this battery pole ear utmost point group one adopts metal forming, thickness is little, the number of plies is many, when welding, deflection is large, compare with the battery ultra-sonic welded of traditional structure, exist weld strength to be difficult to guarantee, lug very easily welds and splits, etc. technological difficulties.
Weld defect may cause consequence:
1, the too low sealing-off that may cause in use procedure of Joint Strength causes that the internal resistance of cell is high, capacity is low, and battery is low etc.;
In case 2 lugs generation welderings split in follow-up welding end subprocess, A, terminal can be with utmost point component from battery failure is scrapped; In B, battery use procedure, slight crack runs through whole utmost point group along the growth of utmost point group width, causes safe inefficacy.
If in 3 welding processes, the lug deflection is excessive, lug easily causes breakage in follow-up assembling process, can cause equally terminal to break away from utmost point Battery pack and lose efficacy.
At present, the same polarity pole piece of paper tinsel utmost point group has two solder joints, original welding head structure adopts twice welding of single solder joint to complete, not only production efficiency is low, and because lug is subject to twice vibrations, after the welding, lug produces work hardening owing to shaking for the first time, when welding for the second time, lug is very easily because fatigue strength is damaged, or the defectives such as the surperficial output projection of lug, depression, in the postorder assembling process, lug easily breaks; Former weld head design easily causes the solder joint edge easily to break etc. in order to guarantee weld strength.
The utility model content
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, and a kind of paper tinsel lug lithium ion cell polar ear prewelding soldering tip is provided, and improves the quality of products, reduces weldering and split risk.
The utility model for achieving the above object, by the following technical solutions: a kind of paper tinsel lug lithium ion cell polar ear prewelding soldering tip, it is characterized in that: comprise the soldering tip body, described soldering tip body is " U " shape.
The both ends of the surface of described soldering tip body are provided with ripple.
Described ripple is 3-5 row.
Described efflux most ripple than other row ripples low.
The described ripple that effluxes most designs for rounding.
The beneficial effects of the utility model are: U-shaped structure guarantees once to weld the welding of completing simultaneously two prewelding solder joints, improve the strict profile coherence request of two solder joints of production efficiency and reached the uniformity that has required to guarantee two solder joint output ultrasonic wave energy with the Central Symmetry degree, once welding is completed the welding of two solder joints and has been reduced solder joint and cause the risk of lug fatigue failure due to vibrations, reduced because welding produces the lug deflection, reduced the probability of following process damage lug.Special soldering tip solder joint arrangement mode and structure are being guaranteed weld strength simultaneously, have prevented that effectively the fracture of lug is with damaged.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is side view of the present utility model.
The specific embodiment
Describe the specific embodiment of the present utility model in detail below in conjunction with accompanying drawing and preferred embodiment.As shown in Fig. 1 to 2, a kind of paper tinsel lug lithium ion cell polar ear prewelding soldering tip comprises soldering tip body 1, and described soldering tip body is " U " shape.Two uniformity that the solder joint profile is strict have been guaranteed two uniformity that the solder joint energy is exported.
Preferably, 2,3 be provided with ripple 4 on the both ends of the surface of described soldering tip body.Described ripple is 3-5 row.Described efflux most ripple than other row ripples low.The described ripple that effluxes most designs for rounding.Guaranteeing effectively to have prevented under the welding prerequisite that through actual the use lug weldering from splitting.Reasonably ripple size has reduced the risk that in follow-up welding end subprocess, the lug vibrations are broken.
U-shaped structure guarantees once to weld the welding of completing simultaneously two prewelding solder joints, improve the strict profile coherence request of two solder joints of production efficiency and reached the uniformity that has required to guarantee two solder joint output ultrasonic wave energy with the Central Symmetry degree, once welding is completed the welding of two solder joints and has been reduced solder joint and cause the risk of lug fatigue failure due to vibrations, reduced because welding produces the lug deflection, reduced the probability of following process damage lug.Special soldering tip solder joint arrangement mode and structure are being guaranteed weld strength simultaneously, have prevented that effectively the fracture of lug is with damaged.
The above is only preferred embodiment of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. paper tinsel lug lithium ion cell polar ear prewelding soldering tip, it is characterized in that: comprise the soldering tip body, described soldering tip body is " U " shape.
2. paper tinsel lug lithium ion cell polar ear prewelding soldering tip according to claim 1, it is characterized in that: the both ends of the surface of described soldering tip body are provided with ripple.
3. paper tinsel lug lithium ion cell polar ear prewelding soldering tip according to claim 2 is characterized in that: described ripple is 3-5 row.
4. paper tinsel lug lithium ion cell polar ear prewelding soldering tip according to claim 3 is characterized in that: described to efflux ripple most lower than other row's ripples.
5. paper tinsel lug lithium ion cell polar ear prewelding soldering tip according to claim 4, it is characterized in that: the described ripple that effluxes most designs for rounding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207298145U CN203003335U (en) | 2012-12-25 | 2012-12-25 | Foil pole lug lithium ion battery pole lug prewelding head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207298145U CN203003335U (en) | 2012-12-25 | 2012-12-25 | Foil pole lug lithium ion battery pole lug prewelding head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203003335U true CN203003335U (en) | 2013-06-19 |
Family
ID=48594968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207298145U Expired - Lifetime CN203003335U (en) | 2012-12-25 | 2012-12-25 | Foil pole lug lithium ion battery pole lug prewelding head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203003335U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105006543A (en) * | 2015-07-20 | 2015-10-28 | 无锡市百事杰金属制品科技有限公司 | Lithium-ion power battery tab |
| CN106328886A (en) * | 2015-06-15 | 2017-01-11 | 河南比得力高新能源科技有限公司 | Preparation device and preparation process of power lithium ion battery pole piece |
| CN107160028A (en) * | 2017-05-18 | 2017-09-15 | 芜湖中科智捷信息科技有限责任公司 | A kind of wave welding head of ultrasonic wave for lithium battery |
| WO2018053868A1 (en) * | 2016-09-26 | 2018-03-29 | 深圳市必利超音波自动化机械有限公司 | Ultrasonic welding head and welding device |
-
2012
- 2012-12-25 CN CN2012207298145U patent/CN203003335U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106328886A (en) * | 2015-06-15 | 2017-01-11 | 河南比得力高新能源科技有限公司 | Preparation device and preparation process of power lithium ion battery pole piece |
| CN106328886B (en) * | 2015-06-15 | 2019-05-28 | 河南比得力高新能源科技有限公司 | Power lithium ion battery pole piece preparation facilities and its preparation process |
| CN105006543A (en) * | 2015-07-20 | 2015-10-28 | 无锡市百事杰金属制品科技有限公司 | Lithium-ion power battery tab |
| WO2018053868A1 (en) * | 2016-09-26 | 2018-03-29 | 深圳市必利超音波自动化机械有限公司 | Ultrasonic welding head and welding device |
| CN107160028A (en) * | 2017-05-18 | 2017-09-15 | 芜湖中科智捷信息科技有限责任公司 | A kind of wave welding head of ultrasonic wave for lithium battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300384 Tianjin Xiqing District Binhai new and high technology Industrial Development Zone Huayuan Technology Park (outside the ring) Hai Tai Nan Road No. 38. Patentee after: LISHEN POWER BATTERY SYSTEMS Co.,Ltd. Address before: 300384 Tianjin Xiqing District Binhai new and high technology Industrial Development Zone Huayuan Technology Park (outside the ring) Hai Tai Nan Road No. 38. Patentee before: LISHEN MILES POWER BATTERY SYSTEMS Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220124 Address after: 266500 Minshan Road, Huangdao District, Qingdao, Shandong Patentee after: LISHEN (QINGDAO) NEW ENERGY CO.,LTD. Address before: 300384 Tianjin Xiqing District Binhai new and high technology Industrial Development Zone Huayuan Technology Park (outside the ring) Hai Tai Nan Road No. 38. Patentee before: LISHEN POWER BATTERY SYSTEMS Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |
|
| CX01 | Expiry of patent term |