CN106783224A - A kind of multi pole ears ultracapacitor and lug localization method - Google Patents
A kind of multi pole ears ultracapacitor and lug localization method Download PDFInfo
- Publication number
- CN106783224A CN106783224A CN201611030585.7A CN201611030585A CN106783224A CN 106783224 A CN106783224 A CN 106783224A CN 201611030585 A CN201611030585 A CN 201611030585A CN 106783224 A CN106783224 A CN 106783224A
- Authority
- CN
- China
- Prior art keywords
- lug
- ultracapacitor
- core
- pole piece
- negative
- 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.)
- Pending
Links
- 210000005069 ears Anatomy 0.000 title claims abstract description 14
- 230000005405 multipole Effects 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000004807 localization Effects 0.000 title claims abstract description 9
- 238000003466 welding Methods 0.000 claims abstract description 15
- 230000001681 protective effect Effects 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 239000003990 capacitor Substances 0.000 abstract description 8
- 239000002360 explosive Substances 0.000 abstract description 6
- 238000005476 soldering Methods 0.000 abstract description 3
- 230000004888 barrier function Effects 0.000 description 6
- 210000003128 head Anatomy 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 210000000554 iris Anatomy 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/78—Cases; Housings; Encapsulations; Mountings
- H01G11/82—Fixing or assembling a capacitive element in a housing, e.g. mounting electrodes, current collectors or terminals in containers or encapsulations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/74—Terminals, e.g. extensions of current collectors
-
- 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
- Y02E60/13—Energy storage using capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
The invention discloses a kind of multi pole ears ultracapacitor, the anode ear (6) and negative electrode lug (7) of the ultracapacitor are arranged on the same side of core (1), it is cut into by pole piece, and quantity is multiple, and explosive valve (9) is additionally provided with upper lid (2)；Simultaneously the invention also discloses the ultracapacitor lug localization method, the expression formula of the centre distance Ln at n-th lug center to previous lug is：3.14 × t of Ln=l L1 × (2 × n × 9 × n+10 of n) a (n 2)；The present invention reduces this operation of soldering polar ear on pole piece, it also avoid causing the increased problem of capacitor internal resistance because welding is not in place；On the other hand, pole piece of the present invention increases without leaving blank position, spreading area again, and the capacity and efficiency of ultracapacitor substantially increase；The lug localization method that the present invention is provided may insure that each lug can align, convenient welding.
Description
Technical field
The present invention relates to a kind of multi pole ears ultracapacitor and lug localization method, belong to ultracapacitor field.
Background technology
Ultracapacitor is called double layer capacitor, is a kind of novel energy storage apparatus, and it has, and the charging interval is short, use the longevity
The features such as life length, good temp characteristic, energy saving and environmental protection.Traditional square ultracapacitor includes positive plate, negative plate
And the barrier film between positive plate and negative plate.When ultracapacitor makes, it is necessary to be reserved at pole piece two or centre specific
The space bit of width number of poles is drawn for tab welding.If this space bit is too small, short circuit is easy to turn on；If space bit is too
Greatly, then the effective area of the positive and negative plate of coating pole piece slurry is reduced, capacity of super capacitor reduction；On the other hand, pole is welded
Ear can cause that welding is not in place to cause the capacitor internal resistance to increase, and cause capacitor lug position heating when in use, have a strong impact on
The heavy-current discharge and high rate performance of capacitor.
The content of the invention
Present invention aim at providing a kind of multi pole ears ultracapacitor, the ultracapacitor it is interior compared with prior art
Resistance is relatively low, and cost effectiveness is high, reliability is high.
To achieve the above object, a kind of multi pole ears ultracapacitor of the invention, including shell, core and upper lid, the volume
Core is placed in shell, and upper lid is arranged on shell, and protective cradle is provided between core and upper lid, and positive pole is provided with upper lid
Post, negative terminal and filler port, are provided with anode ear and negative electrode lug in core, the anode ear is electrically connected with positive terminal, described negative
Lug is electrically connected with negative terminal, and the anode ear and negative electrode lug are arranged on core top, are cut into by pole piece, and quantity is multiple.
Of the invention directly directly to cut out lug on pole piece, the same side of lug in pole piece is (in core when making core
Top), soldering polar ear this operation is reduced, it also avoid causing because welding is not in place that capacitor internal resistance is increased to ask
Topic, while eliminating lug connecting line, also reduces resistance；On the other hand, lug is arranged on the present invention side of pole piece, pole
Piece is not used in leaving blank position, and spreading area increases, and the capacity and efficiency of ultracapacitor substantially increase；Furthermore, the present invention
Multi pole ears mode is taken, even if indivedual lug connections are unreliable, whole structure is nor affected on, there is provided reliability.
Further, it is additionally provided with explosive valve on the upper lid；When the gas that ultracapacitor inside produces reaches certain journey
Degree, explosive valve is automatically opened up, and discharges gas；Avoid because gas nowhere discharges, cause the non-directional of ultracapacitor to explode,
The situation of bigger loss is caused to occur.
It is further protection core, one layer of protective film is wrapped in core outside, and film can be inoranic membrane, organic film.
Preferably, the tab welding mode can be ultrasonic bond, electric resistance welding or Laser Welding.
Further, the positive terminal includes upper positive terminal and lower positive terminal, and negative terminal includes upper negative terminal and lower negative terminal,
Positive terminal and lower positive terminal, upper negative terminal and lower negative terminal are connected with thread connecting mode.Anode ear directly connects with lower positive terminal
Connect, negative electrode lug is directly connected with lower negative terminal, so assembles ultracapacitor more convenient.
Can be because the thickness of positive plate, barrier film and negative plate, causes the position of lug in pole piece during due to coiling core
On can not be evenly distributed, easily dislocation, present invention also offers a kind of lug localization method of above-mentioned ultracapacitor, n-th
The center of lug is with the expression formula of the centre distance Ln of previous lug：
Ln=l-L1-3.14 × t × (2 × n × n-9 × n+10)-a × (n-2)
In formula, n represents n-th lug, and l represents pole piece total length, and a represents the girth of volume pin (14), and L1 represents first
The distance of lug and pole piece head, t represents the increased thickness that often rotates a circle：T=u1 × 2+u2+u3, wherein u1 are thick barrier film
Degree, u2 is positive plate thickness, and u3 is negative plate thickness.
The method determines each lug to the distance of pole piece head according to the thickness of positive plate, barrier film and negative plate,
Can ensure that every layer of lug can be to it, aspect welding.
Brief description of the drawings
Fig. 1 is the structural representation of ultracapacitor of the present invention；
Fig. 2 is the structural representation of the upper lid of ultracapacitor of the present invention；
Fig. 3 is the top view of Fig. 2；
Fig. 4 is core structural representation of the present invention；
Fig. 5 is lug localization method schematic diagram of the present invention；
In figure：1. core, 2. on cover, 3. protective cradle, 4. positive terminal, 5. negative terminal, 6. anode ear, 7. negative electrode lug, 8.
Filler port, 9. explosive valve, 11. positive plates, 12. barrier films, 13. negative plates, the pins of volume 14., positive terminal on 41., 42. times positive terminals,
Negative terminal on 51., 52. times negative terminals.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in Figure 1, Figure 3, a kind of multi pole ears ultracapacitor, including shell (not shown in FIG.), core 1 and upper lid
2；The core 1 is placed in shell；Upper lid 2 is arranged on shell, and protective cradle 3, upper lid 2 are provided between core 1 and upper lid 2
On be provided with positive terminal 4, negative terminal 5 and filler port 8, be provided with anode ear 6 and negative electrode lug 7 in core 1, the anode ear 6 with
Positive terminal 4 is electrically connected, and the negative electrode lug 7 is electrically connected with negative terminal 5, and the anode ear 6 and negative electrode lug 7 are arranged on the upside of core 1,
It is cut into by pole piece, and quantity is multiple.
Of the invention directly directly to cut out lug on pole piece, the same side of lug in pole piece is (in core when making core
Top), soldering polar ear this operation is reduced, it also avoid causing because welding is not in place that capacitor internal resistance is increased to ask
Topic, while eliminating lug connecting line, also reduces resistance；On the other hand, lug is arranged on the present invention side of pole piece, pole
Piece is not used in leaving blank position, and spreading area increases, and the capacity and efficiency of ultracapacitor substantially increase；Furthermore, the present invention
Multi pole ears mode is taken, even if indivedual lug connections are unreliable, whole structure is nor affected on, there is provided reliability.
Further, as shown in Figures 2 and 3, it is additionally provided with explosive valve 9 on the upper lid 2；When ultracapacitor inside produces
Gas reach to a certain degree, explosive valve 9 is automatically opened up, discharge gas；Avoid because gas nowhere discharges, cause super electricity
The non-directional blast of container, causes the situation of bigger loss to occur.
It is further protection core 1, the outside of core 1 one layer of protective film of bag, film can make inoranic membrane, organic film.
Preferably, the tab welding mode can be ultrasonic bond, electric resistance welding or Laser Welding, and welding effect is good, safety.
Further, the positive terminal 4 includes upper positive terminal 41 and lower positive terminal 42, and negative terminal 5 includes the He of upper negative terminal 51
Lower negative terminal 52, positive terminal 41 and lower positive terminal 42, upper negative terminal 51 and lower negative terminal 52 are connected with thread connecting mode.Positive pole
Ear 6 is directly connected with lower positive terminal 42, and negative electrode lug 7 is directly connected with lower negative terminal 52, so assembles ultracapacitor side
Just.
As shown in figure 4, can be because the thickness of positive plate 11, barrier film 12 and negative plate 13, causes during due to coiling core 1
The position of lug can not be evenly distributed on pole piece, easily dislocation, present invention also offers a kind of pole of above-mentioned ultracapacitor
Ear localization method, the expression formula of the centre distance Ln at n-th lug center to previous lug is：
Ln=l-L1-3.14 × t × (2 × n × n-9 × n+10)-a × (n-2)
In formula, n represents n-th lug, and l represents pole piece total length, and a represents the girth of volume pin 14, as shown in figure 5, L1 generations
The distance of first lug of table and pole piece head, t represents the increased thickness that often rotates a circle：T=u1 × 2+u2+u3, wherein u1
It is membrane thicknesses, u2 is positive plate thickness, and u3 is negative plate thickness.
The method principle is：Volume pin 14 is carried out first approximately, volume pin 14 two ends are approximated as into a semicircle.Such as Fig. 4
Shown, both positive and negative polarity often rolls up one and irises out a lug, and often the length of the pole piece of the circle of volume one winding all increased.Assuming that this
Pole piece total length is l, and a total of n lug rolls up the Zhou Changwei a of pin, and volume pin length in addition to circular arc is b, and membrane thicknesses are u1, just
Pole piece thickness is u2, and negative plate thickness is u3, and first lug centre-to-centre spacing pole piece head length is L1, and lug width is w1, lid
The a width of w2 in plate positive and negative terminals center.Then enter the lug centre-to-centre spacing of piece position two for w2, and the thickness that often rotates a circle increases (Δ T=u1
× 2+u2+u3=t), because volume pin 14 upper and lower surface is plane, in winding can't because of the increase of thickness many windeds
Piece, then the increased length of pole piece equivalent to left and right two semicircles more wind length, be scaled Δ L=2 × 3.1415927 ×
T=6.28t, therefore the centre-to-centre spacing between second lug center and first lug center is L2=6.28 × t+a, the like
The distance between 3rd lug center and second lug center are L3=12.56 × t+a, therefore the tenth lug and the 9th
Centre-to-centre spacing between lug is L9=56.52 × t+a, it is possible thereby to according to calculated value, between last lug and centre-to-centre spacing
Distance is L=l-L1-L2-L3--L9-L10-L11, and need to adjust L1 distances, to ensure L11 distances more than w1/2.
Claims (6)
1. a kind of multi pole ears ultracapacitor, including shell, core (1) and upper lid (2)；The core (1) is placed in shell；On
Lid (2) is provided with protective cradle (3) on shell between core (1) and upper lid (2), positive terminal is provided with upper lid (2)
(4), negative terminal (5) and liquid injection hole (8), are provided with anode ear (6) and negative electrode lug (7) in core (1), the anode ear (6) with
Positive terminal (4) is welded, and the negative electrode lug (7) is welded with negative terminal (5), it is characterised in that the anode ear (6) and negative electrode lug
(7) core (1) upside is arranged on, is cut into by pole piece, and quantity is multiple.
2. multi pole ears ultracapacitor according to claim 1, it is characterised in that be additionally provided with the upper lid (2) quick-fried
Broken valve (9).
3. one layer of protective film of bag outside multi pole ears ultracapacitor according to claim 1, core (1), film can be with
Make inoranic membrane, organic film.
4. multi pole ears ultracapacitor according to claim 1, the tab welding mode can be ultrasonic bond, electric resistance welding
Or Laser Welding.
5. multi pole ears ultracapacitor according to claim 1 and 2, it is characterised in that the positive terminal (4) including it is upper just
Pole (41) and lower positive terminal (42), negative terminal (5) include upper negative terminal (51) and lower negative terminal (52), positive terminal (41) and under
Positive terminal (42), upper negative terminal (51) and lower negative terminal (52) are connected in friction welding (FW) mode.
6. a kind of ultracapacitor lug localization method, it is characterised in that the centre-to-centre spacing at n-th lug center to previous lug
Expression formula from Ln is：
Ln=l-L1-3.14 × t × (2 × n × n-9 × n+10)-a × (n-2)
In formula, n represents n-th lug, and l represents pole piece total length, and a represents the girth of volume pin (14), and L1 represents first lug
With the distance of pole piece head, t represents and often rotates a circle increased thickness：T=u1 × 2+u2+u3, wherein u1 are membrane thicknesses, u2
It is positive plate thickness, u3 is negative plate thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611030585.7A CN106783224A (en) | 2016-11-16 | 2016-11-16 | A kind of multi pole ears ultracapacitor and lug localization method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611030585.7A CN106783224A (en) | 2016-11-16 | 2016-11-16 | A kind of multi pole ears ultracapacitor and lug localization method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106783224A true CN106783224A (en) | 2017-05-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611030585.7A Pending CN106783224A (en) | 2016-11-16 | 2016-11-16 | A kind of multi pole ears ultracapacitor and lug localization method |
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| CN (1) | CN106783224A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109802164A (en) * | 2017-11-17 | 2019-05-24 | 青海时代新能源科技有限公司 | Coiled electrode assemblies manufacturing device |
| CN114614147A (en) * | 2022-03-16 | 2022-06-10 | 三一技术装备有限公司 | Cylindrical battery and new energy vehicle |
| CN115394565A (en) * | 2022-08-10 | 2022-11-25 | 上海奥威科技开发有限公司 | Super-long super capacitor |
| WO2024055264A1 (en) * | 2022-09-15 | 2024-03-21 | 宁德时代新能源科技股份有限公司 | Method for adjusting spacing between tabs of battery, and method and device for die cutting of electrode sheet |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1079322A (en) * | 1996-09-04 | 1998-03-24 | Honda Motor Co Ltd | Capacitor, coupling mechanism of capacitor and its coupling method |
| CN1967929A (en) * | 2006-11-14 | 2007-05-23 | 曾坚义 | Winding manufacturing method of polymer battery |
| CN101950816A (en) * | 2010-09-21 | 2011-01-19 | 奇瑞汽车股份有限公司 | Square power lithium ion battery cell and manufacturing method thereof |
| CN102110530A (en) * | 2010-12-20 | 2011-06-29 | 天津力神电池股份有限公司 | Square super capacitor |
| CN104269579A (en) * | 2014-08-27 | 2015-01-07 | 深圳市雄韬电源科技股份有限公司 | Preparation method of cell and cylindrical battery |
-
2016
- 2016-11-16 CN CN201611030585.7A patent/CN106783224A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1079322A (en) * | 1996-09-04 | 1998-03-24 | Honda Motor Co Ltd | Capacitor, coupling mechanism of capacitor and its coupling method |
| CN1967929A (en) * | 2006-11-14 | 2007-05-23 | 曾坚义 | Winding manufacturing method of polymer battery |
| CN101950816A (en) * | 2010-09-21 | 2011-01-19 | 奇瑞汽车股份有限公司 | Square power lithium ion battery cell and manufacturing method thereof |
| CN102110530A (en) * | 2010-12-20 | 2011-06-29 | 天津力神电池股份有限公司 | Square super capacitor |
| CN104269579A (en) * | 2014-08-27 | 2015-01-07 | 深圳市雄韬电源科技股份有限公司 | Preparation method of cell and cylindrical battery |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109802164A (en) * | 2017-11-17 | 2019-05-24 | 青海时代新能源科技有限公司 | Coiled electrode assemblies manufacturing device |
| CN109802164B (en) * | 2017-11-17 | 2021-10-01 | 青海时代新能源科技有限公司 | Winding type electrode assembly manufacturing device |
| CN114614147A (en) * | 2022-03-16 | 2022-06-10 | 三一技术装备有限公司 | Cylindrical battery and new energy vehicle |
| CN115394565A (en) * | 2022-08-10 | 2022-11-25 | 上海奥威科技开发有限公司 | Super-long super capacitor |
| CN115394565B (en) * | 2022-08-10 | 2024-01-30 | 上海奥威科技开发有限公司 | Super-long super capacitor |
| WO2024055264A1 (en) * | 2022-09-15 | 2024-03-21 | 宁德时代新能源科技股份有限公司 | Method for adjusting spacing between tabs of battery, and method and device for die cutting of electrode sheet |
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Application publication date: 20170531 |