Lithium Battery Tab Cathode Ultrasonic Metal Welding Machine

Application : Lithium battery ultrasnoic welding| Lithium battery tab ultrasonic welding | battery tab ultrasonic metal welding machine | Lithium battery cathode ultrasonic welding machine|ultrasonic metal welding machine .

 

With German circuit type ultrasonic system , it's more stable the output power and strong and average . not easy broken the battery tab when in ultrasonic welding . or cause fake welding because of un-stable ultrasnoic power output .

Of course the material of battery you choose is also very important , it will also effect the welding performance ...

 

With energy-packed,rechargeable lithium-ion batteries appearing in more and more products, battery manufacturers are choosing ultrasonic welding for reliable battery assembly.

 

  Ultrasonic welding produces better weld strength and electrical conductivity than using conductive adhesives.

 

  Found in everything from laptops, cell phones and iPods,to power tools, PDAs and even hybrid electric cars, the lithiumion battery has been experiencing skyrocketing demand. Increasingly popular over yesterday’s “heavy metal” batteries, this light-weight, rechargeable battery can be formed into a variety of shapes to fit the devices it powers. It is highly energetic, storing nearly 500 percent more watt hours per weight than lead-acid batteries. Just as thecapabilities and properties of the lithium-ion battery are different from its predecessors, so are its assembly requirements.

 

Lithium-Ion Battery Assembly

 

Lithium-ion battery assembly sometimes requires welding of multiple layers and/or delicate foils. Since soldering is out of the question, typically manufacturers will choose between conductive adhesives or ultrasonic welding.  Manufacturers  have found that ultrasonic welding produces better electrical conductivity and weld strength than using conductive adhesives. Ultrasonics does not use heat, current, fluxes or fillers, eliminating consumable material costs and post-assembly cleaning requirements.

 

Ultrasonic Welding

 

In ultrasonic welding, high frequency ultrasonic energy is directed via a welding tip to the surfaces of the metals to be welded. The energy disperses the oxides and surface films between the workpieces to create a true metallurgical bond without melting the materials. The resulting bond is often as strong as the parent metals. The lower resistance resulting from the ultrasonic bonding and the ability to weld dissimilar materials are additional advantages of the ultrasonic process.

 

 

Ultrasonic spot welding can be used for lithium-ion, NiMH battery assembly and pouch cells, as well as a variety of other terminal-joining operations.

 

Ultrasonic Theory
Ultrasonic metal welding machine use ultrasonic frequency vibration principle to change ultrasonic vibration energy into friction energy and transfer to the metal surface to be welded ,while the friction produces heat under the pressure, the metal structure of molecules fully activation of the fusion between the molecular layer of the formation of the new equipment.

Advantages
1. Welding material does not melt,non-fragile metal properties
2. Good conductivity and resistivity very low or almost near to zero
3. Oxidation or plating metal can be welded
4. Short weld time ,no need additional flux,gas,solder
5. No welding sparks, environment protection and safety
6. Stepless adjustment of the amplitude without the need for frequent replacement of amplifier
7. Using the Germany piezoelectric ceramic transducer. Independent intellectual property rights welding
8. Microcomputer control, more stable and precision
9. Solid tooling design for consistent welding and long life
10. Vertical welding motion for accuracy
11. Easy to operate and maintenance
12. Energy save and environment
13. Adopt the computerised ultrasonic generator AS006 Series(details see below)
14. CE approved
15. Auto. machine can be designed

Applications
l Lithium-Ion/Lithium Polymer battery connections
l Aluminium and copper foils
l Wire terminals
l Swithches
l Ribbon Cables
l Connectors
l Air Bag Sensors
l Metal tube welding /cutting ,gas-tight