CN109860498A - A kind of pole ear welding method of metal housing battery - Google Patents
A kind of pole ear welding method of metal housing battery Download PDFInfo
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- CN109860498A CN109860498A CN201910048706.8A CN201910048706A CN109860498A CN 109860498 A CN109860498 A CN 109860498A CN 201910048706 A CN201910048706 A CN 201910048706A CN 109860498 A CN109860498 A CN 109860498A
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- tab
- battery
- pole ear
- metal
- negative electrode
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention discloses a kind of pole ear welding methods of metal housing battery, the battery includes metal cell case, positive plate, negative electrode tab, tab, the positive plate and negative electrode tab heap poststack form battery core, and the present invention is suitable for the tab welding of metal housing battery, after tab is placed between battery core and metal cell case, by the way of electric resistance welding or Laser Welding by tab welding on the inner wall of metal cell case.So that the processing of battery is more convenient, product yield is high, effectively improves production efficiency, while tab need to only be bent once, only formed one layer of tab, effectively reduced the volume of battery.
Description
Technical field
The present invention relates to field of batteries, are to be related to a kind of pole ear welding method of metal housing battery more specifically.
Background technique
Lithium ion battery has specific energy height, good cycle, service life length, operating voltage high and safety, memoryless effect
The advantages that answering is widely used in the driving of portable electronic device, energy storage device and electric vehicle.Common battery such as circle
Its shell majority such as column battery, rectangular cell uses metal shell, and tab welding mode is generally before battery seal, in battery case
It is welded inside.Please refer to Fig. 1 and Fig. 2,18650 cylindrical batteries after the coiling, what anode pole piece 1 and cathode pole piece 2 were formed
There are a mesoporous 6, cathode copper polar ear or nickel tab to enter capillary 5 by mesoporous 6 among battery core, with the mode of electric resistance welding in shell
Side point back welding in 4.For another example the tab welding of button cell, please refers to Fig. 3 and Fig. 4, and anode pole piece 1 and cathode pole piece 2 stack shape
At battery core, battery core is placed in the cavity that two battery cases 4 are formed up and down, before sealing, upper and lower two battery cases 4 and tab
3 by way of Laser Welding or electric resistance welding, is welded on the inner wall of battery case 4 from inside by tab 3, then fluid injection sealing.Note
When liquid, battery core and battery case 4 are connected together by tab 3, so that the technology difficulty of fluid injection is big, yield is low.
Summary of the invention
To overcome drawbacks described above in the prior art, the present invention provides a kind of pole ear welding method of metal housing battery.
To achieve the above object, the present invention provides a kind of pole ear welding method of metal housing battery, and the battery includes gold
Belong to battery case, positive plate, negative electrode tab, tab, the positive plate and negative electrode tab heap poststack form battery core, the welding of the tab
Method the following steps are included:
(1) battery core is placed in metal cell case；
(2) lug bending is once placed between battery core and metal cell case；
(3) tab is welded and fixed by electric resistance welding or Laser Welding on the outside of metal cell case.
Preferably, the battery case includes negative electrode casing and anode cover, in the anode cover and negative electrode casing at least
One is metal-backs.
Preferably, the anode cover is metal-back, in step, lug bending is once placed on to battery core and anode
Between shell.
Preferably, the negative electrode casing is that lug bending is once placed on battery core and cathode in step by metal-back
Between shell.
Preferably, the anode cover and negative electrode casing are metal-back, in step, lug bending is once placed on
Between battery core and anode cover or negative electrode casing.
Preferably, the tab includes positive pole ear and negative lug, the positive pole ear is aluminum strip, the cathode
Tab is copper bar or nickel bar, the negative lug and positive pole ear with a thickness of 0.01mm-1mm.
Compared with prior art, the beneficial effects of the present invention are:
The present invention is suitable for the tab welding of metal housing battery, after tab is placed between battery core and metal cell case,
By the way of electric resistance welding or Laser Welding by tab welding on the inner wall of metal cell case.So that the processing of battery is more square
Just, product yield is high, effectively improves production efficiency, while tab need to only be bent once, only formed one layer of tab, effectively reduced electricity
The volume in pond.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the pole ear welding method schematic diagram of existing 18650 battery；
Fig. 2 is the enlarged drawing in the portion A in Fig. 1；
Fig. 3 is one of pole ear welding method schematic diagram of existing button cell；
Fig. 4 is the two of the pole ear welding method schematic diagram of existing button cell；
Fig. 5 is a kind of tab of the pole ear welding method in 18650 batteries of metal housing battery provided in an embodiment of the present invention
Application schematic diagram in welding；
Fig. 6 is the enlarged drawing in the portion B in Fig. 5；
Fig. 7 is that a kind of pole ear welding method of metal housing battery provided in an embodiment of the present invention is welded in the tab of button cell
The schematic diagram of the step of application in connecing one；
Fig. 8 is that a kind of pole ear welding method of metal housing battery provided in an embodiment of the present invention is welded in the tab of button cell
The schematic diagram of the step of application in connecing two.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
The embodiment of the present invention provides a kind of pole ear welding method of metal housing battery.
Embodiment one
It please refers to Fig. 5 and Fig. 6, in the present embodiment, by taking 18650 batteries as an example, illustrates metal housing battery provided by the invention
Application of the pole ear welding method in the tab welding of 18650 batteries.The battery includes metal cell case 4, positive plate
1, negative electrode tab 2, tab 3, the positive plate 1 and 2 heap poststack of negative electrode tab form battery core, the battery case 4 include negative electrode casing and
Anode cover, the tab 3 include positive pole ear and negative lug, and the anode cover and negative electrode casing are metal-back, the tab 3
Welding method the following steps are included:
(1) battery core is placed in metal cell case 4；
(2) positive pole ear bending is once placed between battery core and anode cover, negative lug bending is once placed on
Between battery core and negative electrode casing；
(3) capillary 50 is directed at tab 3 and metal cell case 4 in the outside of metal cell case 4, by electric resistance welding or
Tab 3 is welded and fixed in Laser Welding.
The welding method of tab 3 provided by the invention, due to being to be welded in the outside of metal battery shell 4 to tab 3,
So that the processing of battery is more convenient, product yield is high, effectively improves production efficiency, while tab 3 need to bend primary, shape
At one layer of tab 3, the volume of battery is effectively reduced.
In the present embodiment, the positive pole ear be aluminum strip, the negative lug be copper bar or nickel bar, the negative lug and
Positive pole ear with a thickness of 0.06mm, in other embodiments, the thickness of the negative lug and positive pole ear may be
Arbitrary value between 0.01mm-1mm.
Certainly, in other embodiments, metal-back only can also be set by anode cover, in step (2), by positive pole
Ear and negative lug bending are once placed between battery core and anode cover, are then being welded.Only negative electrode casing can also be set
It is set to metal-back, in step (2), positive pole ear bending is once placed between battery core and negative electrode casing, then in negative electrode casing
Positive pole ear and negative lug are welded in outside.
Embodiment two
It please refers to Fig. 7 and Fig. 8, in the present embodiment, by taking button cell as an example, illustrates metal housing battery provided by the invention
Application of the pole ear welding method in the tab welding of button cell.The battery includes metal cell case 4, and positive plate 1 is born
Pole piece 2, tab 3, the positive plate 1 form battery core with 2 heap poststack of negative electrode tab, and the battery case 4 includes negative electrode casing and anode
Shell, the tab 3 include positive pole ear and negative lug, and the anode cover and negative electrode casing are metal-back, the weldering of the tab 3
Connect method the following steps are included:
(1) battery core is placed in metal cell case 4；
(2) positive pole ear bending is once placed between battery core and anode cover, negative lug bending is once placed on
Between battery core and negative electrode casing；
(3) capillary 50 is directed at tab 3 and metal cell case 4 in the outside of metal cell case 4, by electric resistance welding or
Tab 3 is welded and fixed in Laser Welding.
The welding method of tab 3 provided by the invention, due to being to be welded in the outside of metal battery shell 4 to tab 3,
So that the processing of battery is more convenient, product yield is high, effectively improves production efficiency, while tab 3 need to bend primary, shape
At one layer of tab 3, the volume of battery is effectively reduced.
Consistent in other features restrictions and embodiment one, details are not described herein again.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (6)
1. a kind of pole ear welding method of metal housing battery, the battery includes metal cell case (4), positive plate (1), cathode
Piece (2), tab (3), the positive plate (1) and negative electrode tab (2) heap poststack form battery core, it is characterised in that: the tab (3)
Welding method the following steps are included:
(1) battery core is placed in metal cell case (4)；
(2) tab (3) bending is once placed between battery core and metal cell case (4)；
(3) tab (3) is welded and fixed by electric resistance welding or Laser Welding on the outside of metal cell case (4).
2. a kind of pole ear welding method of metal housing battery according to claim 1, it is characterised in that: the battery case
It (4) include negative electrode casing and anode cover, at least one is metal-backs in the anode cover and negative electrode casing.
3. a kind of pole ear welding method of metal housing battery according to claim 2, it is characterised in that: the anode cover is
Tab (3) bending is once placed between battery core and anode cover by metal-back in step (2).
4. a kind of pole ear welding method of metal housing battery according to claim 2, it is characterised in that: the negative electrode casing is
Tab (3) bending is once placed between battery core and negative electrode casing by metal-back in step (2).
5. a kind of pole ear welding method of metal housing battery according to claim 2, it is characterised in that: the anode cover and
Negative electrode casing is metal-back, and in step (2), tab (3) bending is once placed between battery core and anode cover or negative electrode casing.
6. a kind of pole ear welding method of metal housing battery according to claim 1, it is characterised in that: the tab (3)
Including positive pole ear and negative lug, the positive pole ear is aluminum strip, and the negative lug is copper bar or nickel bar, the cathode pole
Ear and positive pole ear with a thickness of 0.01mm-1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910048706.8A CN109860498A (en) | 2019-01-18 | 2019-01-18 | A kind of pole ear welding method of metal housing battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910048706.8A CN109860498A (en) | 2019-01-18 | 2019-01-18 | A kind of pole ear welding method of metal housing battery |
Publications (1)
| Publication Number | Publication Date |
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| CN109860498A true CN109860498A (en) | 2019-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910048706.8A Pending CN109860498A (en) | 2019-01-18 | 2019-01-18 | A kind of pole ear welding method of metal housing battery |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111354916A (en) * | 2020-04-24 | 2020-06-30 | 福建南平延平区南孚新能源科技有限公司 | Electric connection method, electric connection structure and product of button cell pole shell and electrode lug |
| CN111370638A (en) * | 2020-05-11 | 2020-07-03 | 福建南平延平区南孚新能源科技有限公司 | Production method of button battery without welding trace and button battery manufactured by same |
| CN111370637A (en) * | 2020-05-11 | 2020-07-03 | 福建南平延平区南孚新能源科技有限公司 | Production method of button battery without welding trace and button battery manufactured by same |
| CN111370635A (en) * | 2020-04-24 | 2020-07-03 | 福建南平延平区南孚新能源科技有限公司 | Production method of button battery without welding trace and button battery manufactured by same |
| CN111922497A (en) * | 2020-08-10 | 2020-11-13 | 广东维都利新能源有限公司 | External butt-welding method and button battery |
| CN112185713A (en) * | 2020-09-29 | 2021-01-05 | 浙江微创新能源有限公司 | Assembly process of super capacitor |
| CN113708021A (en) * | 2021-08-02 | 2021-11-26 | 惠州锂威新能源科技有限公司 | Manufacturing method of multi-tab battery and multi-tab battery |
| WO2021237711A1 (en) * | 2020-05-29 | 2021-12-02 | 宁德新能源科技有限公司 | Battery and electrical device having same |
| WO2022028332A1 (en) * | 2020-08-04 | 2022-02-10 | 珠海冠宇电池股份有限公司 | Button cell and preparation method therefor |
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| JPH04162351A (en) * | 1990-10-25 | 1992-06-05 | Toshiba Battery Co Ltd | Manufacture for cylindrical battery |
| CN101188311A (en) * | 2007-09-30 | 2008-05-28 | 广州市鹏辉电池有限公司 | A novel lithium Fe battery and its making technology |
| CN108695484A (en) * | 2017-03-31 | 2018-10-23 | 松下知识产权经营株式会社 | Welding structural body and its manufacturing method |
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- 2019-01-18 CN CN201910048706.8A patent/CN109860498A/en active Pending
Patent Citations (3)
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| JPH04162351A (en) * | 1990-10-25 | 1992-06-05 | Toshiba Battery Co Ltd | Manufacture for cylindrical battery |
| CN101188311A (en) * | 2007-09-30 | 2008-05-28 | 广州市鹏辉电池有限公司 | A novel lithium Fe battery and its making technology |
| CN108695484A (en) * | 2017-03-31 | 2018-10-23 | 松下知识产权经营株式会社 | Welding structural body and its manufacturing method |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111354916A (en) * | 2020-04-24 | 2020-06-30 | 福建南平延平区南孚新能源科技有限公司 | Electric connection method, electric connection structure and product of button cell pole shell and electrode lug |
| CN111370635A (en) * | 2020-04-24 | 2020-07-03 | 福建南平延平区南孚新能源科技有限公司 | Production method of button battery without welding trace and button battery manufactured by same |
| CN111370635B (en) * | 2020-04-24 | 2023-10-20 | 福建南平延平区南孚新能源科技有限公司 | Production method of button cell without welding trace and prepared button cell |
| CN111370638A (en) * | 2020-05-11 | 2020-07-03 | 福建南平延平区南孚新能源科技有限公司 | Production method of button battery without welding trace and button battery manufactured by same |
| CN111370637A (en) * | 2020-05-11 | 2020-07-03 | 福建南平延平区南孚新能源科技有限公司 | Production method of button battery without welding trace and button battery manufactured by same |
| CN111370637B (en) * | 2020-05-11 | 2024-01-30 | 福建南平延平区南孚新能源科技有限公司 | Production method of button cell without welding trace and prepared button cell |
| CN111370638B (en) * | 2020-05-11 | 2024-01-30 | 福建南平延平区南孚新能源科技有限公司 | Production method of button cell without welding trace and prepared button cell |
| CN115413384A (en) * | 2020-05-29 | 2022-11-29 | 宁德新能源科技有限公司 | Battery and electric device with same |
| WO2021237711A1 (en) * | 2020-05-29 | 2021-12-02 | 宁德新能源科技有限公司 | Battery and electrical device having same |
| WO2022028332A1 (en) * | 2020-08-04 | 2022-02-10 | 珠海冠宇电池股份有限公司 | Button cell and preparation method therefor |
| CN111922497A (en) * | 2020-08-10 | 2020-11-13 | 广东维都利新能源有限公司 | External butt-welding method and button battery |
| CN112185713A (en) * | 2020-09-29 | 2021-01-05 | 浙江微创新能源有限公司 | Assembly process of super capacitor |
| CN113708021A (en) * | 2021-08-02 | 2021-11-26 | 惠州锂威新能源科技有限公司 | Manufacturing method of multi-tab battery and multi-tab battery |
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Address after: 405400 building 1-4, Puli industrial new area, Zhaojia street, Kaizhou District, Chongqing Applicant after: Chongqing Zijian Electronic Co., Ltd Address before: 405400 Zhaojia Industrial Park, Kaizhou District, Chongqing Applicant before: CHONGQING VDL ELECTRONICS Co.,Ltd. |
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Application publication date: 20190607 |