A group of researchers at the Korea Advanced Institute of Science and Technology have developed a wearable thermoelectric generator that can harness the wearer's body heat to generate electricity. The device can be used to extend the battery life of low-power wearable devices such as smart watches, fitness trackers, smart collars and smart clothing devices. The device is unique in that it is flexible and portable but also has a high power output relative to its size.
This thermonuclear generator wristband has an area of 10 x 10 centimeters and weighs less than half an ounce. At room temperature, it can generate 40 megawatts of power. This amount of power may not be sufficient to charge typical personal electronic devices like tablets or laptops, but will suffice when it comes to charging wearable devices not needing as much power.
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