CN101972887A - Spot welding method used for two electrodes and nickel sheet of battery cell - Google Patents
Spot welding method used for two electrodes and nickel sheet of battery cell Download PDFInfo
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- CN101972887A CN101972887A CN 201010291803 CN201010291803A CN101972887A CN 101972887 A CN101972887 A CN 101972887A CN 201010291803 CN201010291803 CN 201010291803 CN 201010291803 A CN201010291803 A CN 201010291803A CN 101972887 A CN101972887 A CN 101972887A
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- spot welding
- nickel sheet
- electrodes
- battery cell
- welding method
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Abstract
The invention relates to a spot welding method used for two electrodes and a nickel sheet of a battery cell. The method comprises the following steps of: making bumps on the nickel sheet; performing spot welding by pressurizing while forming a loop through current by using a flat spot welding rod; and melting the bumps by using resistance heat. When in the spot welding, the spot welding is performed on a plurality of spots at the same time, so the productbility is high; the appearances of welding spots are standardized; heat distortion phenomena are less; the quality of the spot welding can be maintained in the situation that the thicknesses, the strengths and the materials of nickel sheets are different; the appearances of the electrodes after the spot welding are orderly; and the service life of the battery cell is improved.
Description
Technical field
The present invention relates to a kind of spot welding method, particularly a kind of spot welding method that is used for electric core the two poles of the earth and nickel sheet.
Background technology
When the production of Notebook Battery,, market fetches generation high voltage or high power capacity because need carrying out connection in series-parallel to electric core to jumbo pursuit, so just need utilize metallic article that electric core is carried out connection in series-parallel connects, and existing spot welding mode is for improving current density, use pointed electrode to cause resistance heating, utilize this resistance heat by the salient point fusion at the current channel that limits.Heating causes between some welding rod and the nickel sheet outward appearance distortion or wearing and tearing cause local electric leakage and overheated, perhaps foreign matter be attached to a welding rod surface make the pressurization and high temperature cause that alloying makes the reception and registration performance of electric current/heat low, influence the quality of spot welding, further influence the performance and the life-span of Notebook Battery.
Summary of the invention
The present invention be directed to the unwarrantable problem of present battery spot welding quality, proposed a kind of spot welding method that is used for electric core the two poles of the earth and nickel sheet, adopt salient point spot welding spot welding mode, the appearance standardization of spot welding, thermal change type phenomenon is few, and the outward appearance of spot welding rear electrode is neat, has improved the life-span of battery.
Technical scheme of the present invention is: a kind of spot welding method that is used for electric core the two poles of the earth and nickel sheet, the point welding rod that comprises bottom flat, the nickel sheet that has at least one salient point, after the energising of some welding rod, the nickel sheet is placed on electric core extremely to be gone up, the point welding rod is several salient points on the nickel sheet vertically, add flanging and form the loop by electric current and carry out spot welding.
Beneficial effect of the present invention is: the present invention is used for the spot welding method of electric core the two poles of the earth and nickel sheet, so multiple spot spot welding simultaneously productivity height during spot welding, the appearance standardization of solder joint, thermal change type phenomenon is few, the quality that under the discrepant situation of thickness, intensity, material of nickel sheet, also can keep spot welding, and the outward appearance of spot welding rear electrode is neat, has improved the life-span of battery.
Description of drawings
Fig. 1 is used for the spot welding method working state figure of electric core the two poles of the earth and nickel sheet for the present invention;
Vertical view when Fig. 2 is used for the spot welding method spot welding of electric core the two poles of the earth and nickel sheet for the present invention;
Cutaway view when Fig. 3 is used for the spot welding method spot welding of electric core the two poles of the earth and nickel sheet for the present invention.
The specific embodiment
The spot welding method that is used for electric core the two poles of the earth and nickel sheet as shown in Figure 1, 2, 3 comprises the some welding rod 4 of bottom flat, has the nickel sheet 1 of at least one salient point 2.After 4 energisings of some welding rod, nickel sheet 1 is placed on electric core extremely go up, some welding rod 4 vertical several salient points 2 on nickel sheet 1 add flanging and carry out spot welding by electric current formation loop.When spot welding, on the nickel sheet, make salient point for improving current density, cause resistance heating when making electric current by the qualification passage, utilize this resistance heat by the salient point fusion.
Claims (1)
1. spot welding method that is used for electric core the two poles of the earth and nickel sheet, it is characterized in that, the point welding rod that comprises bottom flat, the nickel sheet that has at least one salient point, after the energising of some welding rod, the nickel sheet is placed on electric core extremely goes up, the some welding rod is several salient points on the nickel sheet vertically, add flanging and form the loop by electric current and carry out spot welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010291803 CN101972887A (en) | 2010-09-26 | 2010-09-26 | Spot welding method used for two electrodes and nickel sheet of battery cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010291803 CN101972887A (en) | 2010-09-26 | 2010-09-26 | Spot welding method used for two electrodes and nickel sheet of battery cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101972887A true CN101972887A (en) | 2011-02-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010291803 Pending CN101972887A (en) | 2010-09-26 | 2010-09-26 | Spot welding method used for two electrodes and nickel sheet of battery cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101972887A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008866A (en) * | 2012-12-27 | 2013-04-03 | 中航(苏州)雷达与电子技术有限公司 | Combined welding method for bimetallic strip |
| CN105328320A (en) * | 2015-12-04 | 2016-02-17 | 浙江海悦自动化机械股份有限公司 | Electric resistance welding method suitable for busbar |
| CN106425080A (en) * | 2016-12-19 | 2017-02-22 | 昆山鼎工业科技有限公司 | Material collecting device of ultrasonic spot-welder |
| CN107775165A (en) * | 2016-08-31 | 2018-03-09 | 上海拜骋电器有限公司 | Welding method and device for lithium battery |
| CN110153550A (en) * | 2019-06-12 | 2019-08-23 | 祝康胜 | A kind of method of decorative panel spot welding |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4149059A (en) * | 1976-07-27 | 1979-04-10 | Evg Entwicklungsu. Verwertungs-Gmbh | Electrical multi-spot resistance welding machine |
| JPS57190786A (en) * | 1981-05-18 | 1982-11-24 | Hitachi Ltd | Projection welding method |
| US4591687A (en) * | 1982-03-04 | 1986-05-27 | Paul Opprecht | Electrical resistance-pressure welding process for welding parts of workpieces made of aluminum materials and an apparatus and electrode therefor |
| KR20080045305A (en) * | 2006-11-20 | 2008-05-23 | 주식회사 엘지화학 | Method for connection of conductive member to device |
| CN201399659Y (en) * | 2009-03-26 | 2010-02-10 | 横店集团东磁股份有限公司 | Spot-welding electrode |
-
2010
- 2010-09-26 CN CN 201010291803 patent/CN101972887A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4149059A (en) * | 1976-07-27 | 1979-04-10 | Evg Entwicklungsu. Verwertungs-Gmbh | Electrical multi-spot resistance welding machine |
| JPS57190786A (en) * | 1981-05-18 | 1982-11-24 | Hitachi Ltd | Projection welding method |
| US4591687A (en) * | 1982-03-04 | 1986-05-27 | Paul Opprecht | Electrical resistance-pressure welding process for welding parts of workpieces made of aluminum materials and an apparatus and electrode therefor |
| KR20080045305A (en) * | 2006-11-20 | 2008-05-23 | 주식회사 엘지화학 | Method for connection of conductive member to device |
| CN201399659Y (en) * | 2009-03-26 | 2010-02-10 | 横店集团东磁股份有限公司 | Spot-welding electrode |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008866A (en) * | 2012-12-27 | 2013-04-03 | 中航(苏州)雷达与电子技术有限公司 | Combined welding method for bimetallic strip |
| CN105328320A (en) * | 2015-12-04 | 2016-02-17 | 浙江海悦自动化机械股份有限公司 | Electric resistance welding method suitable for busbar |
| CN107775165A (en) * | 2016-08-31 | 2018-03-09 | 上海拜骋电器有限公司 | Welding method and device for lithium battery |
| CN106425080A (en) * | 2016-12-19 | 2017-02-22 | 昆山鼎工业科技有限公司 | Material collecting device of ultrasonic spot-welder |
| CN110153550A (en) * | 2019-06-12 | 2019-08-23 | 祝康胜 | A kind of method of decorative panel spot welding |
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| 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: 20110216 |