However, there is one problem, a thermoelectric type converter will work effectively only if the opposite sides will have a maximum temperature difference. And for these purposes, it is necessary to use metals or their alloys, which do not carry out heat. This is the main problem. General Motors experts rack over her solution. They select minerals for the composition, which received the strange name Skutterite. It represents an alloy of iron, arsenide, cobalt and nickel. Of course, it was possible to go a trodden path and take any rare earth metal. But their large -scale use for industrial purposes will cost the company of too large material and technological costs.
