Definitely worse article

I don't understand how they could quote him saying: “This thin-film technology has the potential to grow from powering small-scale refrigeration systems to supporting large building HVAC applications, similar to the way lithium-ion batteries have been scaled to power devices as small as mobile phones and as large as electric vehicles,”

Then the entire article foregoes comparing their peltier device to traditional compressor based heat pumps.

Oh nifty. These can also be used to generate electricity from body heat. Or presumably any waste heat.

Only if you have a cold environment into which to dump that heat into. You could maybe trickle charge your phone in the winter, if you don't mind a cold spot where the device sits on your body.

Assuming body is 38 degrees C, and ambient is 20 C, Delta T is 18 C, which "works" to whatever extent.

can this be applied to create devices that maintain a temperature range? ie more than x AND less than y? that’s often needed for medications…