1. Product Keywords:

Ultrasonic Welding Equipment, Resistance Spot Welding Equipment, Lithium Battery Cell Welding Machine, Battery Busbar Welding, Nickel Strip Welding Machine, Cell Terminal Welding

2. Product Introduction:

The spot welding machine is a key equipment in lithium battery module and pack production lines, used for welding the positive and negative terminals of cells to connect with busbars or nickel strips, achieving electrical connection.

The ultrasonic spot welding machine utilizes high-frequency vibrations under pressure to create friction between metal surfaces, forming a solid-state weld. The resistance spot welding machine applies pressure and current through electrodes, using resistance heat to melt the metal and form a weld nugget. The two types of equipment are suitable for different materials and process requirements.

3. Working Process:

Cell preparation and welding part positioning

Setting welding parameters (energy, time, pressure, etc.)

Ultrasonic welding or resistance heat welding

Welding completion and cooling solidification

Optional online weld quality inspection

Transfer of welded cells/modules to next process

4. Technical Specifications:

Ultrasonic Spot Welding Machine

• Ultrasonic Frequency: 20-40kHz

• Output Power: 2000-5000W

• Welding Time: 0.1-2 seconds

• Welding Pressure: 50-1000N

• Applicable Materials: Copper, Aluminum, Nickel and Alloys

• Welding Thickness: 0.02-2mm

• Control System: PLC touch screen

• Power Supply: AC 220/380V, 50Hz

• Air Source: 0.5-0.7MPa compressed air

Resistance Spot Welding Machine

• Power Type: DC/AC/Medium Frequency Inverter

• Maximum Welding Current: 5000-20000A

• Welding Time: 1-99 cycles (20ms-2s)

• Welding Pressure: 100-2000N

• Electrode Material: Copper-Chromium-Zirconium, Molybdenum Alloy

• Applicable Materials: Nickel Strips, Steel Strips, Nickel-Plated Steel, Aluminum Foil

• Welding Thickness: 0.05-3mm

• Control System: Microcomputer/PLC touch screen

• Power Supply: AC 380V, 50Hz

• Air Source: 0.5-0.7MPa compressed air

5. Technical Features:

Ultrasonic Spot Welding Machine

• High weld quality, no melting or heat-affected zone

• Wide application range, especially suitable for highly conductive materials

• High efficiency and environmentally friendly, no additional heat source or flux required

• High degree of automation, can be integrated into automated production lines

Resistance Spot Welding Machine

• Low equipment investment, simple maintenance

• Mature and reliable process, widely used

• Simple operation, easy parameter control

• High weld strength, good electrical performance

• Suitable for high-speed mass production

6. Application Areas:

Production of large battery modules for electric vehicles, energy storage systems, etc.

Production of small battery modules for power tools, electric bicycles, etc.

Welding of metal components in electronics, home appliances, etc.

Welding of metal products such as metal sheets, foils, etc.