CN101826602B - Storage battery end cover, shell and storage battery - Google Patents
Storage battery end cover, shell and storage battery Download PDFInfo
- Publication number
- CN101826602B CN101826602B CN2009101058460A CN200910105846A CN101826602B CN 101826602 B CN101826602 B CN 101826602B CN 2009101058460 A CN2009101058460 A CN 2009101058460A CN 200910105846 A CN200910105846 A CN 200910105846A CN 101826602 B CN101826602 B CN 101826602B
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- CN
- China
- Prior art keywords
- pole
- hole
- cover plate
- storage battery
- extension stem
- 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.)
- Expired - Fee Related
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 17
- 238000005452 bending Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims 3
- 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
- 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
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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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- 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 accumulator end cover, the storage battery that there is 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 is connected 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, in the contact area between pole and lug extension stem, metallic atom can not very closely link together, during battery-operated, the transmission channel of electronics is sparse and discontinuous, causes junction resistance larger.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 poor, for current delivery causes very large obstacle, therefore, the connected mode of riveted joint make resistance between pole and lug extension stem greatly, conductance is low, riveted joint place loss certain electric weight, current delivery efficiency low.Use the storage battery of this end cap because the kwh loss on end cap is larger, affected 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 lug extension stem contact resistance little, the accumulator end cover 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 accumulator end cover, 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 described pole, the through hole on cover plate is stretched out on the top of pole, described insulation cushion is enclosed within on pole cover plate and pole is separated, and an end of described lug extension stem is for being connected 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 is connected with pole has the brace that bending arranges, 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 brace.
The end cap that described accumulator end cover is cylindrical cell.
The end cap that described accumulator end cover is 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.
The housing that described accumulator housing is 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 cylindrical cell.
The invention has the beneficial effects as follows: accumulator terminal of the present invention covers, and the mode by welding between pole and lug extension stem is connected.Because pole and lug extension stem are all metal materials, both welding are merged the metal in 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 subject to the obstruction of the oxide layer of metal surface, thereby between pole and lug extension stem, resistance is less, conductivity improves, and storage battery is significantly reduced in the electric energy loss of this position.Due to same principle, for the accumulator housing with this end cap, electric energy loss is relatively less, and for the storage battery that uses this housing, power loss is less, so the operating efficiency raising, and increase useful life.
In addition, when the brace on the lug extension stem is welded on the bottom land of pole bottom, this connected mode is not only firm, stable, and makes the lug extension stem can not contact the electrolyte in liquid injection hole, has further guaranteed the quality of storage battery.
The storage battery of cylindrical cell, prismatic cell etc. can adopt the structure in the present invention, to reach the effect that improves battery efficiency.
The accompanying drawing explanation
The vertical view that Fig. 1 is a kind of embodiment of accumulator end cover of the present invention.
The cutaway view that Fig. 2 is accumulator end cover shown in Fig. 1.
The upward view that Fig. 3 is accumulator end cover shown in Fig. 1.
Embodiment
Fig. 1 is to a kind of embodiment structure chart that Figure 3 shows that accumulator end cover of the present invention, and the accumulator end cover in this figure, 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 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 for the electrolyte of packing into from end caps to internal storage battery.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 is connected with lug extension stem 5; There is flexible insulation cushion 3 and be enclosed within on pole 2 cover plate 1 and pole 2 insulation are separated, and make the accumulator end cover place form good sealing; Stainless steel packing ring 4 also is enclosed within on pole 2, and be insulated the cover 3 be pressed on the below.
Battery core generally is equipped with in the inside of cylindrical cell, the positive and negative electrode of battery core is all drawn by several lugs respectively, the tab welding that polarity is identical forms a lug extension stem 5 together, and this lug extension stem 5 is connected to form the negative or positive electrode of cylindrical cell again with pole 2.
Must form firm, stable being connected between lug extension stem 5 and pole 2, can to avoid like this storage battery accidentally to collide, drop etc. former thereby cause coming off of lug extension stem 5; In addition, consider that, if the resistance of junction is larger, electronics is very low in the efficiency of transmission of this position, electric energy loss is larger, can affect to a certain extent operating efficiency and the useful life of storage battery, therefore, generally should reduce lug extension stem 5 and pole 2 between the resistance of junction.In present embodiment, an end of lug extension stem 5 is for being connected 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 bending.Lug extension stem 5 can be sheet metal, its end be connected 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 being welded and fixed, the brace 5 of lug extension stem 5 is welded on the bottom land of groove 21, and liquid injection hole 22 is contained in hole, this connected mode is not only firm, stable, and makes lug extension stem 5 can not contact the electrolyte in liquid injection hole 2, has further guaranteed accumulator quality.With riveted joint, other connected modes such as be spirally connected are compared, the connected mode of welding can significantly reduce the resistance between lug extension stem 5 and pole 2, improve the efficiency of transmission of electronics, its reason is: welding is merged the metal in 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 subject to the obstruction of the oxide layer of metal surface, thereby between pole 2 and lug extension stem 5, resistance is less, the corresponding raising of conductivity, significantly reduced the electric energy loss of storage battery in this position.
The selection of concrete welding procedure should be determined for different industrial circles, product and weldering body material, in the present invention, consider if the impurity that in welding procedure, weld zone incorporates is less, the connection between metallic atom is tightr, will effectively reduce resistance, improve electric transmission efficiency, therefore, in present embodiment, between lug extension stem 5 and pole 2, the mode of preferably ultrasonic spot welding, electric resistance welding or Laser Welding is welded, and forms solder joint 6.Ultrasonic electric welding utilizes ultrasonic wave dither friction principle machine, after the contact weldment, make its temperature be increased to rapidly molten condition, and apply certain pressure and make the combination that between metallic atom, gravitation can be had an effect, firm welding, stable not only, and owing to connecting between metallic atom closely, impurity is few, thereby weld resistance is less; In electric resistance welding, after the weldment contact, by electrode, exert pressure, utilize electric current to be welded by the contact-making surface of joint and the resistance heat of adjacent domain generation, can make equally the interior metallic atom tight weld of welding region together, and impurity is few, conductivity is high; Laser Welding utilizes laser beam as thermal source, by 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 is only 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 all can be used in this invention the mode of welding between pole 2 and lug extension stem 5 to be connected, 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 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; in end cap due to this storage battery; between pole 2 and lug extension stem 5, be weldingly connected; weld resistance is very little, and the power loss on 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, and because the electric energy loss at housing place is less, this working efficiency of accumulator is high, long service life.This storage battery can be cylindrical accumulator, also can be the battery of prismatic cell (comprising large-scale high-power square storage battery) or other types.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the 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 (10)
1. an accumulator end cover, 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 described pole, the through hole on cover plate is stretched out on the top of described pole, the bottom of described pole is provided with groove, described insulation cushion is enclosed within on described pole cover plate and pole is separated, the inside recessed formation groove in the pad neighboring of described insulation cushion, the upper end of described pad raises up and makes insulation cushion top form a step, described groove surfaces coordinates with described cover plate, described ledge surface coordinates with described pole outer surface, one end of described lug extension stem is for being connected with the storage battery lug, the other end is welded on the bottom of pole, the end that described lug extension stem is connected with pole has the brace that bending arranges, 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 brace.
2. accumulator end cover according to claim 1, it 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. accumulator end cover according to claim 2, it is characterized in that: described pole and lug extension stem weld by the mode of ultrasonic spot welding or Laser Welding.
4. according to the described accumulator end cover of any one in claims 1 to 3, it is characterized in that: the end cap that described accumulator end cover is cylindrical cell.
5. according to the described accumulator end cover of any one in claims 1 to 3, it is characterized in that: the end cap that described accumulator end cover is prismatic cell.
6. an 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, described cover plate is provided with through hole, also be provided with the liquid injection hole of perforation on described pole, the through hole on cover plate is stretched out on the top of described pole, the bottom of described pole is provided with groove, described insulation cushion is enclosed within on pole cover plate and pole is separated, the inside recessed formation groove in the pad neighboring of described insulation cushion, the upper end of described pad raises up and makes insulation cushion top form a step, described groove surfaces coordinates with described cover plate, described ledge surface coordinates with described pole outer surface, one end of described lug extension stem is for being connected with the storage battery lug, the other end is welded on the bottom of pole, the end that described lug extension stem is connected with pole has the brace that bending arranges, 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 brace.
7. accumulator housing according to claim 6, is characterized in that: the housing that described accumulator housing is cylindrical cell.
8. a storage battery, there is 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 described pole, the through hole on cover plate is stretched out on the top of described pole, the bottom of described pole is provided with groove, described insulation cushion is enclosed within on pole cover plate and pole is separated, the inside recessed formation groove in the pad neighboring of described insulation cushion, the upper end of described pad raises up and makes insulation cushion top form a step, described groove surfaces coordinates with described cover plate, described ledge surface coordinates with described pole outer surface, one end of described lug extension stem is for being connected with the storage battery lug, the other end is welded on the bottom of pole, the end that described lug extension stem is connected with pole has the brace that bending arranges, 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 brace.。
9. storage battery according to claim 8, it is characterized in that: described pole and lug extension stem weld by the mode of ultrasonic spot welding or Laser Welding.
10. storage battery according to claim 8 or claim 9, it is characterized in that: described storage battery is 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 CN101826602A (en) | 2010-09-08 |
| CN101826602B true CN101826602B (en) | 2013-12-18 |
Family
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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) |
Families Citing this family (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 |
| CN113013526B (en) * | 2021-04-02 | 2022-10-11 | 广东微电新能源有限公司 | Battery cover plate, battery and preparation method of battery |
| CN112993494A (en) * | 2021-04-16 | 2021-06-18 | 湖北亿纬动力有限公司 | Battery top cap 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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2833898Y (en) * | 2005-08-19 | 2006-11-01 | 周基平 | Lithium ion battery cover plate component and battery |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1140135A (en) * | 1997-07-17 | 1999-02-12 | Fuji Photo Film Co Ltd | Cylindrical 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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2833898Y (en) * | 2005-08-19 | 2006-11-01 | 周基平 | Lithium ion battery cover plate component and battery |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平11-40135A 1999.02.12 |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1146674A1 (en) | 2011-06-30 |
| CN101826602A (en) | 2010-09-08 |
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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 |
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