CN101887956A - Splitting riveting type energy storage device with low internal resistance - Google Patents
Splitting riveting type energy storage device with low internal resistance Download PDFInfo
- Publication number
- CN101887956A CN101887956A CN2010102106040A CN201010210604A CN101887956A CN 101887956 A CN101887956 A CN 101887956A CN 2010102106040 A CN2010102106040 A CN 2010102106040A CN 201010210604 A CN201010210604 A CN 201010210604A CN 101887956 A CN101887956 A CN 101887956A
- Authority
- CN
- China
- Prior art keywords
- brace
- bolt
- internal resistance
- energy storage
- low internal
- 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
Images
Classifications
-
- 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
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention provides a splitting riveting type energy storage device with low internal resistance. The outer part of a cover plate of the device is led out by a bolt; a bolt soleplate is arranged at the bottom of an externally-connected bolt and on the cover plate; the bolt soleplate is provided with rivet holes; the bolt is communicated with a connecting sheet inside the device by rivets; the internal connecting sheet is a right-angled bent structure; the bent part of the internal connecting sheet is positioned at the centre of the space surrounded by the rivets; the connecting sheet is provided with riveting holes; a tag of an electric core is provided with a hole corresponding to the connecting sheet; the tag is riveted or bolted with the connecting sheet; the energy storage device comprises a device for storing energy in the electrochemical principle and a device for storing energy in the physical principle. The external bolt is connected with the internal connecting sheet by the rivets, so the device is difficult to move and is helpful to improve sealing performance; the riveting of the tag of the electric core and the connecting sheet is beneficial for reducing the connecting resistance between the tag and the connecting sheet so that the internal resistance of the entire energy storage device is further reduced; the device has the advantages of reliable connection and is beneficial for realizing the output of the high power (large current).
Description
Technical field
The present invention relates to a kind of energy storage device and make the field, be specifically related to a kind of internal structure design of splitting riveting type energy storage device with low internal resistance.
Background technology
Power supply is all indispensable piths of various circuit.Do not having under the situation of civil power, only take the mode of power storage could be satisfied the circuit use, therefore various energy storage devices are important component parts of mobile using electricity system, and its performance is directly connected to important indicators such as the useful life, power characteristic of mobile electrical appliance.
Present energy storage device is battery, secondary cell, ultracapacitor etc. once.Primary cell is not chargeable, can't use repeatedly, comprehensive use cost height.But the secondary cell repeated charge is the first-selected energy storage device of present many mobile electrical appliances; At present, common secondary cell has: lead-acid battery, nickel-cadmium cell, Ni-MH battery, lithium ion battery, ultracapacitor etc.Lead-acid battery, nickel-cadmium cell have the pollution of lead, cadmium heavy metal, are just progressively used by the countries in the world restriction; Because the price of nickel rises steadily, the cost performance of Ni-MH battery is also in continuous decline.Lithium ion battery and ultracapacitor are the novel energy-storing devices that occurs in recent years, have tangible performance advantage.Lithium ion battery energy density height, but power density is lower, and the life-span is lacked (about 1000 times); In the ultracapacitor life-span long (can reach more than 100,000 times), power density is big, but energy density is lower.
Device such as electric automobile, the pulse power is all had higher requirement to the power-performance of its energy storage device.Aspect raising energy storage device power-performance, admissible measure has: 1. improve the electrode material prescription, improve the power capability of electrode; 2. improve electrolyte, reduce resistance; 3. improve the lug lead-out mode of electrode, reduce contact resistance.Aspect improving the electrode prescription and improving electrolyte, many researchers have carried out big quantity research, have also obtained bigger progress.After electrode resistance and bath resistance all were reduced to a certain degree, the resistance of drawing of electrode lug just rose to critical positions gradually in whole energy storage device all-in resistance; Promptly need to improve the all-in resistance that the electrode pole ear leading-out could further reduce energy storage device, just can reach the purpose of further raising energy storage device power-performance.But on the lead-out mode of electrode,, make little progress though some improvement are also arranged, as: (1) is connected on the lug of electric core on the brace with supersonic welding, and brace is connected with the external cabling post of energy storage device by rivet; (2) a plurality of lugs of welding on electrode slice are welded on a plurality of lugs on the little metallic plate, and metallic plate is connected with end plate by the jump ring structure, and this mode requires height, processing difficulties to the accuracy of manufacture of jump ring; (3) soldering polar ear on the electrode slice stays a hole in the heart portion of core bag, by this hole an electrode lug of core bag is welded on the bottom of shell with spot welding machine, another utmost point is welded on lug on the end plate with spot welding machine, this mode still will be used lug, and solder joint is few, and internal resistance is still bigger; (4) punch on the lug with electric core, be fixed on the bolt with screw, bolt directly stretches out the energy storage device housing by hermetically-sealed construction, but with screw lug is fixed on the bolt, can cause loose contact because screw is loosening.
Summary of the invention
The objective of the invention is: at the deficiency that prior art exists, provide a kind of energy-storing device with low internal resistance on electrode lead-out process, thereby the internal resistance of energy storage device is reduced, reliability increases, power density improves.
The present invention proposes electrode pole ear leading-out new in a kind of splitting riveting type energy storage device with low internal resistance, and this structure helps reducing the internal resistance of energy storage device, improves its power-performance, and has the connection reliable characteristics.The present invention design helps to reduce the resistance that is connected between electric core and the brace, improves the power characteristic of energy storage device, and the present invention takes following technical scheme for achieving the above object:
A kind of splitting riveting type energy storage device with low internal resistance, comprise outside bolt part, hermetic unit that passes the device cover plate and the brace part that is positioned at device inside, it is characterized in that: the outside on the cover plate adopts bolt to draw, in outside bolt bottom and be positioned at and be provided with the bolt base plate on the cover plate, this base plate is provided with rivet hole, by rivet bolt is communicated with the brace of device inside; Described inner brace is to be 90 ° bending structure, and the bending place is positioned at the middle part that rivet surrounds the space, and brace is provided with the hole that is used to rivet; The lug of electricity core has and the corresponding hole of brace; Lug links together by riveted joint or bolt and brace; Described energy storage device comprises by electrochemical principle and carries out the device of energy storage and the device that is carried out energy storage by physical principle.Because outer bolt adopts rivet to link to each other with inner brace, be difficult for becoming flexible, help to improve sealing property; The lug of electricity core adopts the riveted joint mode to help to reduce to be connected resistance with brace, therefore the internal resistance of whole energy storage device is reduced, and helps realizing high power (big electric current) output.
The energy storage device that the present invention is fit to comprises by electrochemical principle and carries out the device of energy storage and the device that carries out energy storage by physical principle that this energy storage device is: lithium ion battery, ultracapacitor, mixed capacitor, electrochemical capacitor, double electric layer capacitor, capacitor batteries, high power battery etc.
The material of described outside bolt is selected from them one or more of copper or copper alloy, nickel-clad copper alloy, aluminum or aluminum alloy, nickel or nickel alloy, stainless steel.The material of brace is selected in them one or more of copper or copper alloy, aluminum or aluminum alloy, nickel plating fine copper, nickel-clad copper alloy, nickel or nickel alloy, stainless steel for use.
Have the liquid injection hole of the electrolyte that is used to annotate on the cover plate of the present invention at least, can also design explosion-proof valve or rupture pressure disc on the cover plate; Brace of the present invention can be converted into 90 ° by two
The shape sheet metal constitutes, and also can once be converted into an integral piece of metal
Shape, outside bolt is fixed on the energy storage device cover plate jointly by the horizontal bending side of rivet and brace, has the connection film perforation that is used to rivet lug on the vertical bending side of brace; The riveted holes that being used on the brace connects cell polar ear is more than 1 or 1.A bolt base plate is respectively placed at the outside bolt place that is positioned at the cover plate both sides, and the base plate of every cover plate is provided with four rivet holes, and the bending place of brace is positioned at the middle part that four rivets surround the space.Can also place the plastics or the rubber anti-rotation support of a fixing electric core between electricity core and the cover plate, in application process, move to prevent electric core; The lug of electricity core can separated into two parts, and brace places between these two parts and rivets; Can place the pad of protection lug during riveted joint on the lug two sides, this pad is provided with and the corresponding riveted holes of brace;
Characteristics of the present invention are: because outer bolt adopts rivet to link to each other with inner brace, be difficult for becoming flexible, help to improve sealing property; Lug and the brace employing riveted joint mode of electricity core helps to reduce the resistance that is connected between electric core and the brace, therefore the internal resistance of whole energy storage device is further reduced, improve its power-performance, and have the connection reliable characteristics, help realizing high power (big electric current) output.
Description of drawings
Fig. 1 Fig. 2 Fig. 3 is respectively vertical view, end view and the upward view of existing energy storage device cover plate derivation mechanism.
Among the figure: a cover plate, b liquid injection hole, c outside bolt, d rivet, e rupture pressure disc, f sealing gasket, g brace, h bolt base plate.
Fig. 4, Fig. 5 and Fig. 6 are respectively vertical view, end view and the upward view of cover plate derivation mechanism of the present invention.
Fig. 7 is the electric core schematic diagram of energy storage device.
The structural representation that Fig. 8 is connected with housing cover for the present invention's electricity core.
Fig. 9, Figure 10 are respectively pad front view and the vertical views that the present invention is used to rivet time protection lug.
Embodiment
Also the present invention is described in detail in conjunction with the accompanying drawings below by embodiment, provides Comparative Examples that effect of the present invention is described simultaneously.The following examples just meet the example of the technology of the present invention content, do not illustrate that the present invention only limits to the described content of following example, and the technical staff in the industry all belongs to content of the present invention according to the product of this claim item manufacturing.
Embodiment 1:
1. be processed into cover plate as Fig. 4, Fig. 5, structure shown in Figure 6, among the figure: 1 cover plate, 2 liquid injection holes, 3 outside bolts, 4 rivets, 5 rupture pressure discs, 6 sealed insulation pads, 7 braces, 8 bolt base plates, 9 connect film perforation (for the rivet hole of riveted joint cell polar ear).Outside on the cover plate 1 adopts outside bolt 3 to draw, outside bolt 3 is fixed on (each one of both positive and negative polarity) on the energy storage device cover plate 1 by rivet 4 and brace 7, in bolt 3 bottoms and be positioned at and be provided with bolt base plate 8 on the cover plate 1, establishing four on this base plate 8 has rivet hole, by rivet 4 bolt is communicated with the brace 7 of device inside; Brace is designed to one 90 ° bending structure, and this bending place is positioned at the middle part that four rivets 4 surround the space; Brace 7 can be converted into 90 ° by two
The shape sheet metal is made, and also can once be converted into an integral piece of metal
Shape, outside bolt 3 is fixed on the energy storage device cover plate 1 jointly by the horizontal bending side of rivet 4 with brace 7; Between bolt base plate 8 and cover plate 1, sealed insulation pad 6 is housed; Cover plate 8 is provided with rupture pressure disc 13; Have the liquid injection hole 2 of the electrolyte that is used to annotate on one side at cover plate 8;
2. according to the manufacturing process of traditional lithium ion battery: batching-stirring-coating-rolling-cut-welding electrode ear winding (lamination) is made into electric core (manufacturing and designing by 20Ah).
3. as Fig. 7, shown in Figure 8,11 for rolling up the lugs of core, and 12 are the electric core of winding (or lamination is good), and 13 is the lug hole.On the lug 11 of electric core 12, go out and brace 7 corresponding lug holes 13 with specific purpose tool; On the vertical bending side of brace 7, have two connection film perforations 9 (hole 13 overlaps riveted joint with hole 9) that are used to rivet equally; Lug 11 will link together by riveted joint and brace 7.
4. lug 11 is divided into two parts, places the two sides, front and back of brace 7 vertical bending sides respectively, distinguish shell tool 10 (as Fig. 9, shown in Figure 10) then; With rivet pad 10, lug 11, brace 7 are riveted together (as shown in Figure 8), it is 3003 aluminium alloy that the material positive pole of outside bolt 3 is selected the trade mark for use again, and negative pole is selected no lead brass alloy for use; Brace 7 material positive poles are selected fine aluminium for use, and negative pole is selected fine copper for use.
5. according to the subsequent technique of lithium ion battery: seal welding (cover plate and housing are welded together)-drying-notes electrolyte-change into-test can obtain the low internal resistance Li-ion battery product.
6. detect: with battery charge-discharge test instrument the lithium ion battery product of making is tested, discharged and recharged with 1C, its discharge capacity is 20.2Ah, DC internal resistance 3.7m Ω.
Comparative Examples 1:
1. according to the manufacturing process of traditional lithium ion battery: batching-stirring-coating-rolling-cut-welding electrode ear winding (lamination) is made into electric core (manufacturing and designing by 20Ah).
2. the lug of electric core is connected on supersonic welding on the brace of cover plate (as Fig. 1, Fig. 2, shown in Figure 3) of prior art.
3. according to the subsequent technique of lithium ion battery: seal welding (cover plate and housing are welded together)-drying-notes electrolyte-change into-test can obtain the lithium ion battery product.
4. detect: with battery charge-discharge test instrument the lithium ion battery product of making is tested, discharged and recharged with 1C, its discharge capacity is 20.3Ah, DC internal resistance 4.6m Ω.
Claims (10)
1. splitting riveting type energy storage device with low internal resistance, comprise outside bolt part, hermetic unit that passes the device cover plate and the brace part that is positioned at device inside, it is characterized in that: the outside on the cover plate adopts bolt to draw, in outside bolt bottom and be positioned at and be provided with the bolt base plate on the cover plate, this base plate is provided with rivet hole, by rivet bolt is communicated with the brace of device inside; Described inner brace is to be 90 ° bending structure, and the bending place is positioned at the middle part that rivet surrounds the space, and brace is provided with the hole that is used to rivet; The lug of electricity core has and the corresponding hole of brace; Lug links together by riveted joint or bolt and brace; Described energy storage device comprises by electrochemical principle and carries out the device of energy storage and the device that is carried out energy storage by physical principle.
2. energy-storing device with low internal resistance according to claim 1 is characterized in that: this energy storage device is lithium ion battery, ultracapacitor, mixed capacitor, high power battery, capacitor batteries.
3. energy-storing device with low internal resistance according to claim 1 is characterized in that: described outside bolt material is selected from them one or more of copper or copper alloy, nickel-clad copper alloy, aluminum or aluminum alloy, nickel or nickel alloy, stainless steel.
4. energy-storing device with low internal resistance according to claim 1 is characterized in that: described cover plate is provided with rupture pressure disc or explosion-proof valve.
5. energy-storing device with low internal resistance according to claim 1 is characterized in that: described brace is converted into 90 ° by two
The shape sheet metal constitutes, and perhaps once is converted into an integral piece of metal
Shape, outside bolt is fixed on the energy storage device cover plate jointly by the horizontal bending side of rivet and brace, has the connection film perforation that is used to rivet lug on the vertical bending side of brace.
6. energy-storing device with low internal resistance according to claim 1 or 5 is characterized in that: more than described brace material is selected a kind of in them of copper or copper alloy, aluminum or aluminum alloy, nickel plating fine copper, nickel-clad copper alloy, nickel or nickel alloy, stainless steel for use or planted.
7. energy-storing device with low internal resistance according to claim 1, it is characterized in that: a bolt base plate is respectively placed at the outside bolt place that is positioned at the cover plate both sides, the base plate of every cover plate is provided with four rivet holes, and the bending place of brace is positioned at the middle part that four rivets surround the space.
8. energy-storing device with low internal resistance according to claim 1 is characterized in that: place the pad of protection lug on the lug two sides, this pad is provided with and the corresponding riveted holes of brace.
9. energy-storing device with low internal resistance according to claim 1 is characterized in that: the lug separated into two parts of electric core, brace places between these two parts and rivets.
10. energy-storing device with low internal resistance according to claim 1 is characterized in that: the riveted holes that being used on the described brace connects cell polar ear is more than 1 or 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102106040A CN101887956A (en) | 2010-06-24 | 2010-06-24 | Splitting riveting type energy storage device with low internal resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102106040A CN101887956A (en) | 2010-06-24 | 2010-06-24 | Splitting riveting type energy storage device with low internal resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101887956A true CN101887956A (en) | 2010-11-17 |
Family
ID=43073756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102106040A Pending CN101887956A (en) | 2010-06-24 | 2010-06-24 | Splitting riveting type energy storage device with low internal resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101887956A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102420305A (en) * | 2011-12-02 | 2012-04-18 | 苏州冠硕新能源有限公司 | Battery |
| CN102420295A (en) * | 2011-12-02 | 2012-04-18 | 苏州冠硕新能源有限公司 | Battery core cover, battery core cover component and manufacturing method thereof |
| CN103219486A (en) * | 2013-03-26 | 2013-07-24 | 深圳市力可兴电池有限公司 | Non-welded secondary battery |
| CN107732044A (en) * | 2017-11-16 | 2018-02-23 | 广州中国科学院工业技术研究院 | Lithium ion battery and its covering plate structure |
| CN109148167A (en) * | 2018-09-12 | 2019-01-04 | 张拉社 | A kind of square casing supercapacitor and power battery |
| CN109216049A (en) * | 2018-09-12 | 2019-01-15 | 张拉社 | A kind of housing end plug assembly of supercapacitor and power battery |
| CN112531294A (en) * | 2020-12-21 | 2021-03-19 | 常德中科多源电力融合技术研究院 | Soft package lithium ion battery tab connecting piece and connecting method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2713656Y (en) * | 2004-07-26 | 2005-07-27 | 苏州星恒电源有限公司 | A high-capacity lithium battery |
| CN101232082A (en) * | 2007-01-25 | 2008-07-30 | 深圳华粤宝电池有限公司 | Battery cover plate with new type structure and secondary battery thereof |
| CN201430191Y (en) * | 2009-07-07 | 2010-03-24 | 湖南业翔晶科新能源有限公司 | Lithium ion secondary power battery |
| CN201853759U (en) * | 2010-06-24 | 2011-06-01 | 朝阳立塬新能源有限公司 | Split rivet-type energy storage device with low internal resistance |
-
2010
- 2010-06-24 CN CN2010102106040A patent/CN101887956A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2713656Y (en) * | 2004-07-26 | 2005-07-27 | 苏州星恒电源有限公司 | A high-capacity lithium battery |
| CN101232082A (en) * | 2007-01-25 | 2008-07-30 | 深圳华粤宝电池有限公司 | Battery cover plate with new type structure and secondary battery thereof |
| CN201430191Y (en) * | 2009-07-07 | 2010-03-24 | 湖南业翔晶科新能源有限公司 | Lithium ion secondary power battery |
| CN201853759U (en) * | 2010-06-24 | 2011-06-01 | 朝阳立塬新能源有限公司 | Split rivet-type energy storage device with low internal resistance |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102420305A (en) * | 2011-12-02 | 2012-04-18 | 苏州冠硕新能源有限公司 | Battery |
| CN102420295A (en) * | 2011-12-02 | 2012-04-18 | 苏州冠硕新能源有限公司 | Battery core cover, battery core cover component and manufacturing method thereof |
| CN103219486A (en) * | 2013-03-26 | 2013-07-24 | 深圳市力可兴电池有限公司 | Non-welded secondary battery |
| CN103219486B (en) * | 2013-03-26 | 2015-08-19 | 深圳市力可兴电池有限公司 | Non-solder secondary cell |
| CN107732044A (en) * | 2017-11-16 | 2018-02-23 | 广州中国科学院工业技术研究院 | Lithium ion battery and its covering plate structure |
| CN109148167A (en) * | 2018-09-12 | 2019-01-04 | 张拉社 | A kind of square casing supercapacitor and power battery |
| CN109216049A (en) * | 2018-09-12 | 2019-01-15 | 张拉社 | A kind of housing end plug assembly of supercapacitor and power battery |
| CN112531294A (en) * | 2020-12-21 | 2021-03-19 | 常德中科多源电力融合技术研究院 | Soft package lithium ion battery tab connecting piece and connecting method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101887956A (en) | Splitting riveting type energy storage device with low internal resistance | |
| US20080213657A1 (en) | High Capacity Lithium Ion Secondary Battery with Metal Case | |
| CN101887958B (en) | Double-ended leading-out low internal resistance power storage device | |
| CN101847745B (en) | Energy-storing device with low internal resistance and production method thereof | |
| CN103311490B (en) | Power-type lithium ion battery group and manufacture method thereof | |
| CN101887959B (en) | Riveted low-internal-resistance energy storage device | |
| CN103427111B (en) | A kind of lithium-ion energy storage battery and manufacture method thereof | |
| CN201853759U (en) | Split rivet-type energy storage device with low internal resistance | |
| CN220233280U (en) | Cylindrical lithium battery cap negative side connecting device with built-in BMS plate | |
| CN213340561U (en) | Lithium battery module | |
| CN201601187U (en) | Lithium ion battery | |
| CN201853757U (en) | Double-end leading-out type low-internal-resistance energy storage device | |
| CN201576714U (en) | Low-inner resistance power-storing device | |
| CN201853760U (en) | Riveted low internal resistance energy-saving device | |
| CN101887957A (en) | Self-riveting low internal resistance energy storage device | |
| CN201853758U (en) | Self-riveting energy storing device with low internal resistance | |
| CN216209735U (en) | Testing device for improving charging and discharging efficiency of square-shell battery | |
| CN201796985U (en) | Pole of high-power lithium ion battery | |
| CN212323106U (en) | Large-capacity battery capable of outputting large current | |
| CN203434245U (en) | Lithium-ion energy storage battery | |
| CN203800137U (en) | Nickel-metal hydride (Ni-MH) battery | |
| CN201282175Y (en) | High-power chargeable battery | |
| CN103427095A (en) | Manufacturing method of high-capacity power-type battery pack | |
| CN202839819U (en) | Lug and terminal connection structure of power lithium-ion battery | |
| CN201616464U (en) | Battery cover group with low resistance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101117 |