Titanium dioxide paste is made and applied onto the glass.

The paste is spread evenly on the glass in a thin layer (ca. 10 micrometer).

The titanium dioxide layer is heated (not on the picture) and colored.

Graphite from a pencil is applied on the other glass plate.

Both glass plates (electrodes) are clamped together.

A drop of electrolyt moves between the glass plates by itself. The cell is a life!

A series connection is made by applying cables.

And connected to a pocket calculator or sound module.