Case Study #2: Virtual Cell Winding

A common design issue for cylindrical cells is how to maximize the cell capacity while ensuring the cell winding will fit into the can.

The cell winding is never perfectly round because every tab, tape and coating edge produces bumps that affect the shape of the winding. To maximize the cell capacity it is important to distribute these such that the winding is as round as possible.

An accurate simulation of the cell winding based on the lengths and thicknesses of the components takes the guesswork out of this aspect of cell design. This type of simulation is also useful for visualizing details such as the correct position of cathode protection tapes.

The software calculates the Minimum Encompassing Circle (MEC) which is the smallest can inside diameter that would fit the winding.