Why not use soldering iron for lithium battery welding

Under normal circumstances, the lithium battery can not be welded directly with a soldering iron, and some people say that the direct use of sharp things to scratch, so that the surface is uneven and rough, and the welding is suspended, which is too low, only suitable for people who are interested in playing. In particular, the aluminum pole ear of the soft pack lithium battery can not be welded with a soldering iron. At present, there are two welding methods on the market, one is a laser welding machine, and the other is an ultrasonic welding machine. Laser welding machine due to the high price, consumables are also high, this time do not discuss, but it is not to say that there are no advantages. Let's understand how lithium battery welding is welded.

Lithium battery welding machine is used for similar welding of metals, and can implement single point, multi-point short strip welding of thin materials of copper, silver, aluminum and nickel non-ferrous metals, and can be widely applied to the welding of various shapes such as the pole ear of the fuse plate lithium battery

Welding machine adopts electronic program control, high power, high efficiency, automatic control, easy operation, built-in electronic maintenance circuit, safe operation, stable and reliable work. The weldment has the characteristics of solid welding surface, high strength, objective and environmental protection.

Application solicitation

Supply voltage: 220V/10A1P 50HZ±5%

Compressor displacement: 0.1M/Min

Ambient temperature: 0 ~ 40℃

Relative humidity: 35% ~ 85%

Atmospheric pressure: 86 ~ 106Kpa

Soft pack battery pack

Working principle

Welding principle:

When welding, the transducer converts the high-power vibration signal of 20KHZ into the corresponding mechanical energy, which is applied to the contact interface of the metal parts required to be welded, and the fierce friction at the joint of the welds instantly generates high heat, so that the molecules alternately fuse, thereby achieving the welding effect.

Factors affecting welding quality:

When stopping the welding, it is necessary to apply the necessary pressure to the welding part, while strictly controlling the welding time and ultrasonic power. Pressure, time and power are the three elements to ensure the quality of welding.

Welding pressure: Pressure is applied to the welding part in order to form a more stable welding load for the acoustic component. Due to the static pressure applied to the weldment, the contact surface of the weldment material is good, so that more ultrasonic energy can be absorbed. To achieve the effect.