The bottleneck of battery technology is becoming an impediment to the development of wearable computing equipment.

The bottleneck in battery technology is becoming an impediment to the development of wearable computing equipment, because its properties determine that it should be a long-term companion rather than a time-consuming charge. To solve this problem, most wearable equipment manufacturers are now working on power consumption-reducing the application in the background of the operation, reducing screen loss and so on.

But in reality, these wearable computing devices tend to develop more tightly knit bodies, and they are likely to become part of the human body in the future. We all know that the human body itself is constantly generating energy, such as bio-electricity, body temperature and so on, so whether the human body directly referred to as wearable equipment of energy?

Not long ago, the New York Times print edition reported a pill developed by Proteus Digital Tiyatien, which is essentially a micro-computer designed to monitor the body's internal signs, such as blood flow, internal temperature, stomach acid, and send data to mobile apps. And, this pill is the human power source--proteus Digital Tiyatien on each side of the micro-sensor increased magnesium and copper two elements, thus using stomach acid to obtain enough electricity.

Recently, a Canadian 15-year-old girl, Ann Makosinski, invented a flashlight that could provide power with hand-held temperatures, creating a new space for the human body to function as a wearable computing device. ' There's so much wasted energy in our surroundings that she's been longing to find a way to use them, ' says Makosinski. So she thought of using a pal patch to generate electricity.

The principle is mainly derived from "thermoelectric"-different metal conductors (or semiconductors) have different free electron densities, and when two different metal conductors contact each other, electrons on the contact surface will diffuse to eliminate the difference in electron density. The electron diffusion rate is proportional to the temperature of the contact zone, so as long as the temperature difference between the two metals is maintained, the electrons can spread continuously, forming a stable voltage at the other two endpoints of the two metals.

So she chose to use the thermal conductivity of aluminum as the receiving end of the air temperature, depending on its temperature and the gap to generate electricity. by calculating, Makosinski found that the electricity generated from one end of the heat (the hand) to the cold end was enough to run an energy that provided the illuminated LEDs. But the problem is that the voltage generated is not enough. In order to solve this problem, Makosinski decided to transform the electronic circuit in the PAL patch, and after several months of data access and continuous testing, she finally completed a circuit that could provide enough voltage.

According to the test report, the electricity generated in this way generates usable and stable electrical energy in a 5~10摄氏度 environment, which is less stable at 20 degrees Celsius. But even so, Makosinski's design idea also provides a new idea for people. For example, I think we can use solar energy and body temperature in the future may not charge the watch, daytime use of solar energy, night without sunshine, temperature drop can be charged with body temperature. Hopefully one day this idea will become possible.