CN100541858C - Cell manufacturing method - Google Patents
Cell manufacturing method Download PDFInfo
- Publication number
- CN100541858C CN100541858C CNB2006100336179A CN200610033617A CN100541858C CN 100541858 C CN100541858 C CN 100541858C CN B2006100336179 A CNB2006100336179 A CN B2006100336179A CN 200610033617 A CN200610033617 A CN 200610033617A CN 100541858 C CN100541858 C CN 100541858C
- Authority
- CN
- China
- Prior art keywords
- cover plate
- welding
- housing
- cell manufacturing
- welding electrode
- 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.)
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000003466 welding Methods 0.000 claims abstract description 71
- 238000004070 electrodeposition Methods 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000000758 substrate 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
-
- 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
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The present invention relates to a kind of cell manufacturing method, it is before the laser welding cover plate, adopt electric resistance welding that cover plate is positioned on the housing earlier, described housing is that point contacts with one of them welding electrode, described cover plate is that face contacts with another welding electrode, perhaps, described housing and cover plate contact with two welding electrode faces respectively; The welding electrode position that contacts with described cover plate offers breach, and the position of the conducting terminal on described breach and the described cover plate is corresponding.Cell manufacturing method of the present invention can guarantee housing and cover plate position precision, need not the relative position of cover plate and housing is limited, and can simplify the laser welding frock greatly; And can realize the clamping welding simultaneously of a plurality of cover plates and housing easily, improved welding efficiency greatly.
Description
[technical field]
The present invention relates to a kind of cell manufacturing method, relate in particular to the localization method of a kind of battery container and cover plate.
[background technology]
Lithium ion battery has been widely used in mobile products such as MP3, MP4, personal digital assistant, mobile phone, digital camera, electric tool, toy.Lithium ion battery adopts packaged forms such as square casing, cylindrical housings, flexible package housing usually.Wherein, square casing, cylindrical housings are generally by the end of by or do not have the substrate tubular shell and metal cover board is formed.During making, battery unit is installed in the housing, then, by the laser welding cover plate, thereby with cell sealing.
Good for guaranteeing laser welding, during welding, housing and cover plate fixedly clamping in anchor clamps, so that the assurance housing cooperates closely with cover plate.In the above-mentioned laser beam welding, must cover plate and housing location be clamped with anchor clamps, the frock complexity, welding efficiency is low, also has the situation of clamping off normal in the anchor clamps simultaneously, is not easy to simultaneously to a plurality of housings and cover plate welding.
[summary of the invention]
Technical problem to be solved by this invention is to provide a kind of cell manufacturing method, and it can guarantee the assembly precision of cover plate and housing, the frock when simplifying laser welding.
For solving the problems of the technologies described above, a kind of cell manufacturing method, it adopts Laser Welding that bridge welding is connected on the housing, before the laser welding cover plate, adopt electric resistance welding that cover plate is positioned on the housing earlier, described electric resistance welding is an indirect welding, described housing is that point contacts with one of them welding electrode, described cover plate is that face contacts with another welding electrode, and perhaps, described housing and cover plate contact with two welding electrode faces respectively; The welding electrode position that contacts with described cover plate offers breach, and the position of the conducting terminal on described breach and the described cover plate is corresponding.
More specifically, described electric resistance welding is a butt resistance welding.
More specifically, described cover plate and housing are made by steel material.
Cell manufacturing method of the present invention has overcome the problem of existing laser welding clamping difficulty, can guarantee housing and cover plate position precision.Because it is fixing that cover plate and housing have welded, so during laser welding, it need not the relative position of cover plate and housing is limited, and can simplify the laser welding frock greatly.Because cover plate and housing are connected as a single entity,, improved welding efficiency greatly so can realize the clamping welding simultaneously of a plurality of cover plates and housing easily.
[description of drawings]
The present invention is described in further detail below in conjunction with the drawings and specific embodiments:
Fig. 1 is the schematic diagram of first embodiment of the invention.
Fig. 2 is the battery schematic appearance that adopts the method shown in Fig. 1 to produce.
Fig. 3 is the schematic diagram of second embodiment of the invention.
Fig. 4 is the battery schematic appearance that adopts the method shown in Fig. 3 to produce.
Fig. 5 is the schematic diagram of third embodiment of the invention.
Fig. 6 is the battery schematic appearance that adopts method shown in Figure 5 to produce.
[embodiment]
Cell manufacturing method of the present invention comprises the step of laser welding cover plate and housing, and cover plate and housing are all made by steel material, wherein, before the laser welding cover plate, adopts electric resistance welding that cover plate is positioned on the housing earlier.
Above-mentioned electric resistance welding can be spot welding, butt resistance welding etc.
Seeing also Fig. 1 and Fig. 2, is the first embodiment of the present invention, and the two ends of this housing 1 all have opening, at first, 2 at the upper open end and the copper coin electrode of housing 1 is contacted, and lower cover 3 is positioned the lower open end of housing 1; With twice on copper tapered electrode 4 spot welding lower covers 3 surfaces; Adopt laser welding lower cover 3 and housing 1 again; Subsequently, the battery unit (not shown) is put into housing 1, and it is electrically connected with the upper cover plate (not shown); Adopt the method spot welding upper cover plate of location lower cover 3 and housing 1; At last, with upper cover plate and housing 1 laser welding.The battery that the employing said method makes as shown in Figure 2.
If the sealing of the bottom of housing is then directly put into housing with battery unit, and it is electrically connected with upper cover plate, then, after the employing said method made upper cover plate spot welding be positioned on the housing, laser welding got final product.
In the above-mentioned resistance welded mode, battery container 1 contacts with one of them welding electrode face, and cover plate contacts with another welding electrode point, certainly, this method also can be: housing 1 contacts with one of them welding electrode point, and cover plate contacts with another welding electrode face.
The mode that the foregoing description adopts is an indirect welding, and it also can adopt the mode of direct welding, and promptly housing 1 and cover plate contact with two welding electrode points respectively.
Adopt the mode of spot welding to locate cover plate, because the contact point electric current of electrode and cover plate is bigger, can produce weld mark 5 as shown in Figure 2 at this contact point place, influence the outward appearance of battery, need that the battery that adopts said method to produce is carried out surface finish and handle, eliminate weld mark 5.
Seeing also Fig. 3 and Fig. 4, is the second embodiment of the present invention, is with the foregoing description difference, and housing 1 and cover plate 3 contact with two welding electrodes 2,4 ' face respectively.The mode of employing face contact can reduce the contact resistance of welding work pieces and welding electrode greatly, thereby avoids staying on workpiece weld mark.
Fig. 5 and Figure 6 shows that the third embodiment of the present invention, be with the foregoing description difference, the welding electrode 4 that contacts with upper cover plate 6 " on; the position in the conducting terminal 7 of corresponding upper cover plate 6 offers breach 8, thereby can avoid welding electrode 4 " conducting terminal 7 of upper cover plate 6 is electrically connected with housing 1.
Cell manufacturing method of the present invention has overcome the problem of existing laser welding clamping difficulty, can guarantee housing and cover plate position precision.Because because of cover plate and housing have welded fixingly, so during laser welding, it need not the relative position of cover plate and housing is limited, and can simplify the laser welding frock greatly.Because cover plate and housing are connected as a single entity,, improved welding efficiency greatly so can realize the clamping welding simultaneously of a plurality of cover plates and housing easily.
Claims (3)
1, a kind of cell manufacturing method, it adopts Laser Welding that bridge welding is connected on the housing, before the laser welding cover plate, adopt electric resistance welding that cover plate is positioned on the housing earlier, described housing is that point contacts with one of them welding electrode, described cover plate is that face contacts with another welding electrode, perhaps, described housing and cover plate contact with two welding electrode faces respectively, it is characterized in that: the welding electrode position that contacts with described cover plate offers breach, and the position of the conducting terminal on described breach and the described cover plate is corresponding.
2, cell manufacturing method as claimed in claim 1 is characterized in that: described electric resistance welding is a butt resistance welding.
3, as cell manufacturing method as described in the claim 2, it is characterized in that: described cover plate and housing are made by steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100336179A CN100541858C (en) | 2006-02-09 | 2006-02-09 | Cell manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100336179A CN100541858C (en) | 2006-02-09 | 2006-02-09 | Cell manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101017886A CN101017886A (en) | 2007-08-15 |
| CN100541858C true CN100541858C (en) | 2009-09-16 |
Family
ID=38726732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100336179A Active CN100541858C (en) | 2006-02-09 | 2006-02-09 | Cell manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100541858C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109860497A (en) * | 2019-01-18 | 2019-06-07 | 湖北锂诺新能源科技有限公司 | A kind of welding method of Multilayer pole ear battery |
| CN114614207A (en) * | 2022-03-28 | 2022-06-10 | 上海兰钧新能源科技有限公司 | Lithium battery packaging method and lithium battery |
-
2006
- 2006-02-09 CN CNB2006100336179A patent/CN100541858C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101017886A (en) | 2007-08-15 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160824 Address after: Kwai Chung street Beek Industrial Park in Longgang District of Shenzhen City, Guangdong Province, No. 6 building 518000 Patentee after: SHENZHEN BAK POWER 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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| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20191022 Granted publication date: 20090916 |
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| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20221022 Granted publication date: 20090916 |
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| PP01 | Preservation of patent right |
Effective date of registration: 20221022 Granted publication date: 20090916 |