Lithium Battery 3.7V Lithium Polymer Battery 3.2V LifePo4 Battery 1.2V Ni-MH Battery Button Coin Battery
3.7V Battery Pack 7.4V Battery Pack 11.1V Battery Pack 14.8V Battery Pack Other Battery Pack
Sino Science&Technology Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of Lifepo4 batteries,energy storage battery,portable UPS power supply,personalized customization lithium battery pack etc .
Environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery,3.7V lithium polymer battery, NiMH battery , NiCD battery ,Lead acid battery,dry cell battery ,alkaline battery ,heavy duty battery, button cell battery etc. we devote to R&D,innovation ,production & sales
Shenzhen Green Power Energy Battery Co.,ltd specializes in a wide range of digital battery such as environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery, 3.7V lithium polymer battery, NiMH battery, NiCD battery, dry cell battery, alkaline battery, heavy duty battery, button cell battery etc. we devote to R&D, innovation, production & sales. With automatic production machines we have been exported goods to all over the world over 15years. We have complete exported certificate such as KC, CE, UL, BSCI, ROHS, BIS, SGS, PSE etc
Dongguan Datapower New Energy Co.,ltd is a high-tech production enterprise which specialize in the R&D and production&sale of lithium polymer batteries,drone battery,airplane batteries &battery pack etc.
Anhui Seong-hee New Energy Technology Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of primary batteries. And mainly produces and sells alkaline batteries & carbon zinc batteries. there are size AA, AAA, C, D, 9V etc
Guizhou STD Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production & sale of lithium polymer batteries, drone battery, airplane batteries & battery pack etc.
release time:2024-09-13 Hits: Popular:AG11 battery
Introduction to laser welding of various parts of 4LR44 battery cover
The main application markets of laser welding and automation equipment are new energy power 4LR44 battery industry and energy storage 4LR44 battery industry. Next, we will introduce the practical applications and solutions in the 4LR44 battery industry.
At present, conventional 4LR44 battery structures are generally divided into round batteries, square batteries, and soft-pack batteries
Let's first talk about the cover of square power batteries and the welding application of the cover.
As a mainstream square 4LR44 battery, there are many processes on the cover that require laser welding. Let's first look at the important components of the cover.
1. Sealing nail: To prevent the electrolyte from absorbing moisture in the air, place the sealing nail in the receiving groove so that there is an uneven annular gap between the sealing nail and the receiving groove; the sealing nail is positioned and fixed in the receiving groove by spot welding through the second laser, and the second protective gas is blown to the action point of the second laser; the sealing nail and the cover plate are welded along the annular gap by the second laser
2. Explosion-proof valve: The explosion-proof valve of the 4LR44 battery is a thin-walled valve body on the 4LR44 battery sealing plate. When the internal pressure of the 4LR44 battery exceeds the specified value, the explosion-proof valve body ruptures to prevent the 4LR44 battery from bursting (burst). The safety valve (function: control the pressure not to exceed the specified value) has a clever structure, and this process has extremely strict requirements on the laser (LASER)
welding process. Before the use of continuous (Continuity) laser welding, the welding of 4LR44 battery explosion-proof valves was all done by pulse laser welding, and continuous sealing welding was achieved by overlapping and covering the welding points, but the welding efficiency was low and the sealing was relatively poor. Continuous laser welding can achieve high-speed and high-quality welding, and welding stability, welding efficiency and yield can be guaranteed.
3. Pole: Pole ears are usually divided into three materials. The positive electrode of the 4LR44 battery uses aluminum (Al) (Al) material, and the negative electrode uses nickel (Ni) (Ni) material or copper-plated nickel (Ni-Cu) material. In the manufacturing process of power batteries, one of the links is to weld the 4LR44 battery pole ear and pole together. In the production of secondary batteries, it needs to be welded together with another aluminum safety valve. Welding must not only ensure a reliable connection between the pole ear and the pole, but also require a smooth and beautiful weld.
4. Soft connection: The positive and negative soft connections for the power 4LR44 battery top cover with creases include rectangular positive soft connection sheets and negative soft connection sheets. The positive soft connection sheets are made of multi-layer aluminum foil superimposed and welded, and the negative soft connection sheets are made of multi-layer T2 pure copper foil superimposed and welded. The positive soft connection sheets and the negative soft connection sheets are provided with a first crease groove and a second crease groove that run through the entire soft connection sheet. The first crease groove is set in the middle of the positive soft connection sheet and the negative soft connection sheet, and the second crease groove is set on one side of the first crease groove. The other side is provided with a welding joint distribution area, and multiple welding joints are provided on the welding joint distribution area.
The laser 4LR44 battery explosion-proof valve automated workbench is suitable for the welding of new energy power 4LR44 battery explosion-proof valves. The solution adopts a rotating double-station working mode, manually loading the 4LR44 battery cover plate to the fixture tray, switching between loading and unloading and welding, and realizing the welding of the explosion-proof valve.
Equipment features:
1. Separate rotating double stations allow loading and unloading and welding to be carried out simultaneously, which improves production efficiency and protects operators well
2. Pre-load the 4LR44 battery cover and explosion-proof plate to the fixture tray, load and unload as a whole, and use multiple trays for flexible turnover
3. One fixture tray can load multiple products to improve welding efficiency
5. The explosion-proof plate is automatically fixed by vacuum adsorption, and manual operation is convenient and fast
6. Welding efficiency: 1.7s/piece (welding speed varies for different products; this efficiency is based on the premise that the manual loading and unloading time is less than the welding time)
Read recommendations:
Speak the classification and composition of the electrolyte, and how to choose the battery pack corr
LR754 battery.New smart materials could open new areas of research
Next article:402030 polymer battery
Popular recommendation
AAA Ni-MH batteries wholesaler
2023-03-22lithium ion battery energy storage manufacture
2023-05-10401030 battery Vendor
2023-03-22industrial energy storage battery direct sales
2023-05-10602248 polymer battery company
2023-03-22551235 180mAh 3.7V
2022-08-19803040 1000mAh 3.7V
2022-08-196LR61
2022-07-01521133 160mAh 3.7V
2022-07-01Coin Battery LR 721
2022-10-15Coin Cell BR 1632
2022-10-15Home energy storage battery FBC-HS02
2022-11-08551235 180MAH 3.7V
2023-06-12LR14
2022-11-22Rack-mounted energy storage battery GN-5120
2022-09-27602030 polymer battery
2023-06-25lithium 18650 battery
2023-06-25Ni-MH battery pack
2023-06-253.7V 18650 lifepo4 battery
2023-06-2518650 battery 3500mah lithium
2023-06-25How to Repair and Charge Lithium-ion Batteries
2024-11-26LR754 battery.New smart materials could open new areas of research
2023-11-30Lead-acid batteries
2023-02-03Capacity Range of Shaped Batteries
2025-04-1248v 10kwh energy storage solar system.Can chargers for lead-acid batteries and lithium batteries be
2023-11-15Principles of polymer lithium ion battery work.button cell battery cr1620
2023-07-11Lithium battery discharge circuit.18650 lithium ion battery cell
2023-09-21LR927 battery.Will change the status quo of manual testing
2023-10-14How to Take Explosion Proof Technical Measures for Explosion Proof Lithium Batteries.18650 battery 1
2023-09-04Why does lithium battery power information use lithium iron phosphate?803040 polymer battery
2023-06-10