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According to reports recently organized by the American Physicist Organization Network, researchers at the University of Wisconsin-Madison have designed a power generation device that can convert human motion into electricity. With such a power generation device, mobile electronic devices such as mobile phones will automatically shut down due to battery exhaustion.
The human body is a treasure trove of energy
According to Tom Kruponkin and Ashley Taylor, who are responsible for the study, the human body can be said to be a very rich treasure trove of energy. One person takes one step to produce 6 to 8 watts of electricity, and if it is a sprint, the energy produced is equivalent to about 1 kilowatt of electricity. In addition, body temperature, respiration, heartbeat, pulse, and even blood flow can all be converted into electricity. As long as a small portion of them is used efficiently, it is sufficient to meet the power requirements of portable electronic devices such as mobile phones, tablet computers, and MP3s.
Krupengin said: "All along we have no shortage of energy. What we lack is the technology and equipment that can convert it into electricity." Most energy capture technologies currently used are mostly used in wind power or solar power generation. In large-scale power generation devices or small devices such as calculators, watches, and sensors, the energy capture device that satisfies the needs of the portable electronic device and is in between is almost blank. Although solar photoelectric conversion technology is widely used in portable devices, direct sunlight is not as easy and convenient as human movement. Therefore, this technology that can convert human mechanical energy into electrical energy will be a very meaningful attempt. .
Walking electricity will come true
The study, published in the journal Nature Communications, describes a new type of microfluidic power generation technology. The device consists of tens of thousands of tiny droplets and a new type of nano-substrate. When the shape of the droplet is changed by mechanical energy such as human motion, a certain current can be formed on the surface of this special nano-substrate. According to the researchers, if the device is embedded in shoes, the mechanical energy generated during walking can be converted to 20 watts of power, which is enough to power the mobile electronic devices. Unlike traditional batteries, this energy capture device does not need to be charged at all, as long as you exercise it to generate new energy. The University of Wisconsin research team also recommends that such power generation shoes be equipped with wireless transmission and charging devices to make the use of the power generation device more flexible.
If the technology is successfully applied, it will hopefully drastically reduce our dependence on batteries. The automatic shutdown of mobile electronic devices such as mobile phones due to exhausted batteries may become history.
It is not difficult to never stop
Krupengin and Taylor said that they only came up with the idea of ​​developing such technology after seeing the serious limitations of mobile devices' batteries at work. I believe that the vast majority of mobile phone and laptop users have encountered the dilemma of being automatically shut down and unusable due to exhausted battery power. To a large extent, the dependence of mobile electronic devices on batteries greatly limits their use efficiency and user experience. More importantly, if these portable devices are brought to remote areas where electricity is inconvenient, charging can become a headache.
Similar problems are even more prominent among troops and law enforcement personnel. For example, for the modern soldier equipped with a large number of electronic devices, in order to supply power to laptops, communications equipment, and night vision devices, the weight of the batteries they carry is nearly 10 kilograms. This not only takes up valuable space, but also brings inconvenience to transportation and marching. With the help of new technologies, this situation will hopefully be completely changed. The new type of power generation device will not only make the mobile electronic devices get longer use time, but also make them more thin in appearance and more convenient to use.
The researchers said that although the device is currently unlikely to completely replace the battery, but they believe that this technology can at least play a role in reducing the weight and cost of the battery and resulting pollution and other issues. Klupengin and Taylor set up a company named InStep Nanopower for this purpose. The commercialization and promotion of this technology has also been carried out.
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