CN101826602A - Storage battery end cover, shell and storage battery - Google Patents
Storage battery end cover, shell and storage battery Download PDFInfo
- Publication number
- CN101826602A CN101826602A CN200910105846A CN200910105846A CN101826602A CN 101826602 A CN101826602 A CN 101826602A CN 200910105846 A CN200910105846 A CN 200910105846A CN 200910105846 A CN200910105846 A CN 200910105846A CN 101826602 A CN101826602 A CN 101826602A
- Authority
- CN
- China
- Prior art keywords
- pole
- storage battery
- hole
- end cap
- cover plate
- 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.)
- Granted
Links
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 238000003466 welding Methods 0.000 claims description 27
- 238000002347 injection Methods 0.000 claims description 18
- 239000007924 injection Substances 0.000 claims description 18
- 238000009413 insulation Methods 0.000 claims description 11
- 238000005452 bending Methods 0.000 claims description 5
- 238000005265 energy consumption Methods 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 description 10
- 239000002184 metal Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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 discloses a storage battery end cover, which comprises a cover plate, an insulated pad, a post and a lug extending handle, wherein a through hole is arranged on the cover plate, and a communicating liquid filling hole is also arranged on the post; the top end of the post extends out of the through hole on the cover plate, and the insulated pad is sleeved on the post to separate the cover plate from the post; and one end of the lug extending handle is used for connecting with the lug of the battery, and the other end thereof is welded on the bottom end of the post. The contact resistance between the post and the lug of the battery end cover is small, the conductivity is high and the electric energy consumption is low. The invention also protects a shell with the end cover and a storage battery using the shell, the electric energy consumption of the storage battery shell is low, and the storage battery has high working efficiency and long service life.
Description
Technical field
The present invention relates to a kind of storage battery, particularly a kind of storage battery end cap, the storage battery that has the housing of this end cap and use this housing.
Background technology
In the end cover structure of existing storage battery, the end that pole stretches into internal storage battery links to each other with the riveted joint of lug extension stem usually, this connected mode is more firm, cost is lower, but because riveted joint belongs to mechanical connection, metallic atom can not very closely link together in the contact area between pole and the lug extension stem, during battery-operated, the transmission channel of electronics is sparse and discontinuous, causes junction resistance bigger.In addition, the surface of pole and lug extension stem generally all is coated with etch-proof oxide layer, the conductivity of this oxide layer is generally relatively poor, for current delivery causes very big obstacle, therefore, the connected mode of riveted joint make between pole and the lug extension stem resistance greatly, conductance is low, riveted joint place loss certain electric weight, current delivery efficient low.Use the storage battery of this end cap because the kwh loss on end cap is bigger, influenced the operating efficiency and the useful life of storage battery.
Summary of the invention
Technical problem to be solved by this invention is: overcome the deficiencies in the prior art, provide between a kind of pole and the lug extension stem contact resistance little, the storage battery end cap that conductance is high, the storage battery of the accumulator housing that a kind of electric energy loss is few and a kind of high efficiency, long service life.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of storage battery end cap, comprise cover plate, insulation cushion, pole and lug extension stem, described cover plate is provided with through hole, also be provided with the liquid injection hole of perforation on the described pole, the through hole on the cover plate is stretched out on the top of pole, described insulation cushion is enclosed within on the pole cover plate and pole is separated, and an end of described lug extension stem is used for linking to each other with the storage battery lug, and the other end is welded on the bottom of pole.
Described pole and lug extension stem weld by the mode of ultrasonic spot welding, electric resistance welding or Laser Welding.
Described pole and lug extension stem weld by the mode of ultrasonic spot welding or Laser Welding.
The bottom of described pole is provided with groove, the end that described lug extension stem links to each other with pole has the brace that bending is provided with, described brace is provided with a hole, the aperture in this hole is greater than the aperture of described liquid injection hole, described brace is welded on the bottom land of described groove, and liquid injection hole is contained in the hole on the brace.
Described storage battery end cap is the end cap of cylindrical cell.
Described storage battery end cap is the end cap of prismatic cell.
The present invention has protected a kind of accumulator housing, comprises end cap and cylindrical shell, and described end cap is arranged on the end of cylindrical shell, and this end cap is above-described end cap.
Described accumulator housing is the housing of cylindrical cell.
The present invention has protected a kind of storage battery, has accumulator housing, and this housing is above-described housing.
Described storage battery is a cylindrical cell.
The invention has the beneficial effects as follows: on the storage battery end cap of the present invention, the mode by welding between pole and the lug extension stem links to each other.Because pole and lug extension stem all are metal materials, both welding are merged the metal in the welding region mutually, the metallic atom interface three-dimensional of pole and lug extension stem is welded together, the connection of microcosmic is very tight, during battery-operated, electronics is directly transmission between metallic atom, transmission channel is intensive and efficiency of transmission is higher, and can not be subjected to the obstruction of the oxide layer of metal surface, thereby resistance is less between pole and the lug extension stem, conductivity improves, and storage battery is significantly reduced in the electric energy loss of this position.Because same principle, for the accumulator housing with this end cap, electric energy loss is less relatively, and for the storage battery that uses this housing, power loss is less, so operating efficiency improves the increase in useful life.
In addition, when the brace on the lug extension stem was welded on the bottom land of pole bottom, this connected mode was not only firm, stable, and made the lug extension stem can not contact the interior electrolyte of liquid injection hole, had further guaranteed the quality of storage battery.
The storage battery of cylindrical cell, prismatic cell etc. can adopt the structure among the present invention, to reach the effect that improves battery efficiency.
Description of drawings
Fig. 1 is the vertical view of a kind of embodiment of storage battery end cap of the present invention.
Fig. 2 is the cutaway view of storage battery end cap shown in Figure 1.
Fig. 3 is the upward view of storage battery end cap shown in Figure 1.
Embodiment
Fig. 1 is to a kind of embodiment structure chart that Figure 3 shows that storage battery end cap of the present invention, and the storage battery end cap among this figure is used for cylindrical cell, comprises cover plate 1, pole 2, insulation cushion 3, stainless steel packing ring 4 and lug extension stem 5.Have a manhole in the middle of the cover plate 1, the centre of pole 2 also has the liquid injection hole 22 of a perforation, and this liquid injection hole 22 is used for from end caps to the internal storage battery electrolyte of packing into.The negative or positive electrode that this through hole forms storage battery is stretched out on the top of pole 2, and the bottom of pole 2 is stayed cover plate 1 inside and linked to each other with lug extension stem 5; Rubber-like insulation cushion 3 is enclosed within on the pole 2 cover plate 1 and pole 2 insulation is separated, and makes the storage battery end caps form good sealing; Stainless steel packing ring 4 also is enclosed within on the pole 2, and be insulated the cover 3 be pressed on the below.
Electric core generally is equipped with in the inside of cylindrical cell, the positive and negative electrode of electricity core is all drawn by several lugs respectively, the lug that polarity is identical is welded together to form a lug extension stem 5, and this lug extension stem 5 links to each other with pole 2 and forms the negative or positive electrode of cylindrical cell.
Must form firm, stable being connected between lug extension stem 5 and the pole 2, can avoid storage battery to collide, drop etc. former accidentally like this thereby cause coming off of lug extension stem 5; In addition, consider that if the resistance of junction is bigger, electronics is very low in the efficiency of transmission of this position, electric energy loss is bigger, can influence the operating efficiency and the useful life of storage battery to a certain extent, therefore, generally should reduce the resistance of junction between lug extension stem 5 and the pole 2 as far as possible.In the present embodiment, an end of lug extension stem 5 is used for linking to each other with the storage battery lug, and the other end is welded on the bottom of pole 2.As shown in Figure 2, the bottom of pole 2 is provided with a groove 21, and lug extension stem 5 stretches in this groove 21, is welded on the bottom land of groove 21 after the bending.Lug extension stem 5 can be sheet metal, its end that links to each other with pole 2 is bent to form a brace 51, brace 51 is provided with a hole, the aperture in this hole is greater than the aperture of liquid injection hole 22, and after welding was fixing, the brace 5 of lug extension stem 5 was welded on the bottom land of groove 21, and liquid injection hole 22 is contained in the hole, this connected mode not only firmly, stable, and make lug extension stem 5 can not contact electrolyte in the liquid injection hole 2, further guaranteed accumulator quality.With riveted joint, be spirally connected and wait other connected modes to compare, the connected mode of welding can significantly reduce the resistance between lug extension stem 5 and the pole 2, improve the efficiency of transmission of electronics, its reason is: welding is merged the metal in the welding region mutually, the metallic atom interface three-dimensional of pole 2 and lug extension stem 5 is welded together, microcosmic connects very tight, during battery-operated, electronics is directly transmission between metallic atom, transmission channel is intensive and efficiency of transmission is higher, and can not be subjected to the obstruction of the oxide layer of metal surface, thereby resistance is less between pole 2 and the lug extension stem 5, the corresponding raising of conductivity has significantly reduced the electric energy loss of storage battery in this position.
The selection of concrete welding procedure should be decided at different industrial circles, product and weldering body material, among the present invention, consider if the impurity that the weld zone incorporates in the welding procedure is less, the connection between metallic atom is tightr, will effectively reduce resistance, improve electric transmission efficient, therefore, in the present embodiment, the mode of preferred ultrasonic spot welding, electric resistance welding or Laser Welding is welded between lug extension stem 5 and the pole 2, and forms solder joint 6.Ultrasonic electric welding utilizes ultrasonic wave dither friction principle machine, make its temperature be increased to molten condition rapidly behind the contact weldment, and apply certain pressure and make the combination that gravitation can be had an effect between the metallic atom, firm welding, stable not only, and owing to connect between the metallic atom closely, impurity is few, thereby weld resistance is less; In the electric resistance welding, exert pressure by electrode in weldment contact back, utilizes electric current to weld by the contact-making surface of joint and the resistance heat of adjacent domain generation, can make the interior metallic atom tight weld of welding region equally together, and impurity is few, the conductivity height; Laser Welding utilizes laser beam as thermal source, with the metal molten of welding region and weld together, can reach and above-mentioned two kinds of effects that welding manner is identical or close.
End cap in this embodiment only is used for cylindrical cell, yet, the end cap of the storage battery of prismatic cell (comprising large-scale high-power square storage battery) or other types can use all in this invention that the mode of welding links to each other between the pole 2 and lug extension stem 5, the shape of the shape of pole 2, lug extension stem 5, pole 2 can design as the case may be with the welding position of lug extension stem 5, can effectively reduce the resistance between pole 2 and the lug extension stem 5 equally, reach the effect that improves conductivity and reduce electric energy loss.
The present invention has also protected the accumulator housing with this end cap; comprise end cap and cylindrical shell; end cap is fixedly installed on the end of cylindrical shell by welding or other connected mode; because in the end cap of this storage battery; be weldingly connected between pole 2 and the lug extension stem 5; weld resistance is very little, and the power loss on the end cap is less, so the electric energy loss of accumulator housing is less.This accumulator housing can be the housing of cylindrical cell or prismatic cell, and same, the present invention has also protected the storage battery that uses this housing, because the electric energy loss at housing place is less, and this working efficiency of accumulator height, long service life.This storage battery can be the cylinder storage battery, also can be the battery of prismatic cell (comprising large-scale high-power square storage battery) or other types.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (13)
1. storage battery end cap, it is characterized in that: comprise cover plate, insulation cushion, pole and lug extension stem, described cover plate is provided with through hole, also be provided with the liquid injection hole of perforation on the described pole, the through hole on the cover plate is stretched out on the top of pole, described insulation cushion is enclosed within on the pole cover plate and pole is separated, and an end of described lug extension stem is used for linking to each other with the storage battery lug, and the other end is welded on the bottom of pole.
2. storage battery end cap according to claim 1 is characterized in that: described pole and lug extension stem weld by the mode of ultrasonic spot welding, electric resistance welding or Laser Welding.
3. storage battery end cap according to claim 2 is characterized in that: described pole and lug extension stem weld by the mode of ultrasonic spot welding or Laser Welding.
4. storage battery end cap according to claim 1, it is characterized in that: the bottom of described pole is provided with groove, the end that described lug extension stem links to each other with pole has the brace that bending is provided with, described brace is provided with a hole, the aperture in this hole is greater than the aperture of described liquid injection hole, described brace is welded on the bottom land of described groove, and liquid injection hole is contained in the hole on the brace.
5. according to each described storage battery end cap in the claim 1 to 4, it is characterized in that: described storage battery end cap is the end cap of cylindrical cell.
6. according to each described storage battery end cap in the claim 1 to 4, it is characterized in that: described storage battery end cap is the end cap of prismatic cell.
7. accumulator housing, comprise end cap and cylindrical shell, described end cap is arranged on the end of cylindrical shell, it is characterized in that: described end cap comprises cover plate, insulation cushion, pole and lug extension stem, and described cover plate is provided with through hole, also is provided with the liquid injection hole of perforation on the described pole, the through hole on the cover plate is stretched out on the top of pole, described insulation cushion is enclosed within on the pole cover plate and pole is separated, and an end of described lug extension stem is used for linking to each other with the storage battery lug, and the other end is welded on the bottom of pole.
8. accumulator housing according to claim 7, it is characterized in that: the bottom of described pole is provided with groove, the end that described lug extension stem links to each other with pole has the brace that bending is provided with, described brace is provided with a hole, the aperture in this hole is greater than the aperture of described liquid injection hole, described brace is welded on the bottom land of described groove, and liquid injection hole is contained in the hole on the brace.
9. according to claim 7 or 8 described accumulator housings, it is characterized in that: described accumulator housing is the housing of cylindrical cell.
10. storage battery, has battery container, described housing comprises end cap and cylindrical shell, end cap is arranged on the end of cylindrical shell, it is characterized in that: described end cap comprises cover plate, insulation cushion, pole and lug extension stem, described cover plate is provided with through hole, also be provided with the liquid injection hole of perforation on the described pole, the through hole on the cover plate is stretched out on the top of pole, described insulation cushion is enclosed within on the pole cover plate and pole is separated, one end of described lug extension stem is used for linking to each other with the storage battery lug, and the other end is welded on the bottom of pole.
11. storage battery according to claim 10 is characterized in that: described pole and lug extension stem weld by the mode of ultrasonic spot welding or Laser Welding.
12. storage battery according to claim 10, it is characterized in that: the bottom of described pole is provided with groove, the end that described lug extension stem links to each other with pole has the brace that bending is provided with, described brace is provided with a hole, the aperture in this hole is greater than the aperture of described liquid injection hole, described brace is welded on the bottom land of described groove, and liquid injection hole is contained in the hole on the brace.
13. according to each described storage battery in the claim 10 to 12, it is characterized in that: described storage battery is a cylindrical cell.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101058460A CN101826602B (en) | 2009-03-06 | 2009-03-06 | Storage battery end cover, shell and storage battery |
| HK11100776.7A HK1146674A1 (en) | 2009-03-06 | 2011-01-26 | Battery cover, battery shell and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101058460A CN101826602B (en) | 2009-03-06 | 2009-03-06 | Storage battery end cover, shell and storage battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101826602A true CN101826602A (en) | 2010-09-08 |
| CN101826602B CN101826602B (en) | 2013-12-18 |
Family
ID=42690395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101058460A Expired - Fee Related CN101826602B (en) | 2009-03-06 | 2009-03-06 | Storage battery end cover, shell and storage battery |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101826602B (en) |
| HK (1) | HK1146674A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964401A (en) * | 2010-09-30 | 2011-02-02 | 杭州海孚新能源科技有限公司 | Anode aluminum alloy nut cap for cylindrical lithium ion battery |
| CN105702887A (en) * | 2016-02-03 | 2016-06-22 | 深圳市三讯电子有限公司 | Cover board assembly for power battery and power battery |
| CN106025112A (en) * | 2016-04-28 | 2016-10-12 | 常熟高嘉能源科技有限公司 | Positive electrode lithium battery cover plate |
| CN106684269A (en) * | 2017-01-19 | 2017-05-17 | 佛山市康荣精细陶瓷有限公司 | Cover plate structure for lithium battery and manufacturing method thereof |
| CN108372267A (en) * | 2018-01-24 | 2018-08-07 | 厦门市克成五金制品有限公司 | Impulse- free robustness squeezes hole machined technique and end cover for battery cells |
| WO2022206951A1 (en) * | 2021-04-02 | 2022-10-06 | 广东微电新能源有限公司 | Battery cover plate, battery, and preparation method for battery |
| WO2022217884A1 (en) * | 2021-04-16 | 2022-10-20 | 湖北亿纬动力有限公司 | Battery top cover and battery |
| WO2023283762A1 (en) * | 2021-07-12 | 2023-01-19 | Hefei Gotion High-Tech Power Energy Co., Ltd. | Cylindrical battery cell, battery and method for forming cylindrical battery cell |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1140135A (en) * | 1997-07-17 | 1999-02-12 | Fuji Photo Film Co Ltd | Cylindrical battery |
| CN2833898Y (en) * | 2005-08-19 | 2006-11-01 | 周基平 | Lithium ion battery cover plate component and battery |
-
2009
- 2009-03-06 CN CN2009101058460A patent/CN101826602B/en not_active Expired - Fee Related
-
2011
- 2011-01-26 HK HK11100776.7A patent/HK1146674A1/en unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1140135A (en) * | 1997-07-17 | 1999-02-12 | Fuji Photo Film Co Ltd | Cylindrical battery |
| CN2833898Y (en) * | 2005-08-19 | 2006-11-01 | 周基平 | Lithium ion battery cover plate component and battery |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964401A (en) * | 2010-09-30 | 2011-02-02 | 杭州海孚新能源科技有限公司 | Anode aluminum alloy nut cap for cylindrical lithium ion battery |
| CN105702887A (en) * | 2016-02-03 | 2016-06-22 | 深圳市三讯电子有限公司 | Cover board assembly for power battery and power battery |
| CN106025112A (en) * | 2016-04-28 | 2016-10-12 | 常熟高嘉能源科技有限公司 | Positive electrode lithium battery cover plate |
| CN106684269A (en) * | 2017-01-19 | 2017-05-17 | 佛山市康荣精细陶瓷有限公司 | Cover plate structure for lithium battery and manufacturing method thereof |
| CN108372267A (en) * | 2018-01-24 | 2018-08-07 | 厦门市克成五金制品有限公司 | Impulse- free robustness squeezes hole machined technique and end cover for battery cells |
| WO2022206951A1 (en) * | 2021-04-02 | 2022-10-06 | 广东微电新能源有限公司 | Battery cover plate, battery, and preparation method for battery |
| WO2022217884A1 (en) * | 2021-04-16 | 2022-10-20 | 湖北亿纬动力有限公司 | Battery top cover and battery |
| WO2023283762A1 (en) * | 2021-07-12 | 2023-01-19 | Hefei Gotion High-Tech Power Energy Co., Ltd. | Cylindrical battery cell, battery and method for forming cylindrical battery cell |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1146674A1 (en) | 2011-06-30 |
| CN101826602B (en) | 2013-12-18 |
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Effective date of registration: 20161011 Address after: An Zhen Zhongmu County 451470 Henan city of Zhengzhou Province Liu Zheng Qiao Village Patentee after: ZHENGZHOU BIKE BATTERY CO., LTD. Address before: Kwai Chung street Beek Industrial Park in Longgang District of Shenzhen City, Guangdong province 518119 Patentee before: Shenzhen Bak Battery Co., Ltd. |
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Granted publication date: 20131218 Termination date: 20190306 |