Energy storage welding electrode voltage

Which welding techniques can be used for connecting battery cells?

Brass (CuZn37) test samples are used for the quantitative comparison of the welding techniques, as this metal can be processed by all three welding techniques. At the end of the presented work, the suitability of resistance spot, ultrasonic and laser beam welding for connecting battery cells is evaluated.

Can a battery cell casing be welded?

The findings are applicable to all kinds of battery cell casings. Additionally, the three welding techniques are compared quantitatively in terms of ultimate tensile strength, heat input into a battery cell caused by the welding process, and electrical contact resistance.

What is the maximum current of a battery Weld?

ximated from the battery welding station of one of the manufacturing companies. The maximum value of current was 2.2 kA.For a change in the current value in the range of +/- 10% from the maximum value, i.e. 2.0/2.4 kA, the weld diameter is reduced by 55% and increased by 60%, respectively,

How does welding energy affect electrical contact resistance and tensile force?

Further increasing the welding energy leads to electrode sticking and significant expulsion of bulk material , , , . Fig. 6. Electrical contact resistance and ultimate tensile force as function of welding energy.

What is ided resistance welding?

ided resistance welding, where the electrodes are located on the connector side. Under the electrode pressure and during the welding current flow, heat is generated on the system resistances, which results in welding of the battery components [12÷14].An example of a battery after peel test of th

What is resistance spot welding?

Resistance spot, ultrasonic or laser beam welding are mostly used for connecting battery cells in the production of large battery assemblies. Each of these welding techniques has its own characteristics depending on the material properties and contact geometry. Cell casing and terminal dimensions may constrain possible contact geometries.