According to the British Daily Mail, people who participate in outdoor holiday gatherings do not have to worry about not being able to charge their mobile phones. At present, Vodafone and Southampton University in the United Kingdom have recently developed a mobile phone device that can obtain body heat through denim shorts and sleeping bags. To achieve mobile phone charging.
UK Vodafone Mobile Phones and Southampton University collaborate to develop a portable charger - "shorts and sleeping bags" that can capture the wearer's physical fitness for mobile phone charging.
The picture will explain the working principle of charging shorts, which are equipped with a foam-like ferroelectric electret smart material, which contains pores, the pore surface will be permanently charged, along with human body movement, the pore size of smart materials in shorts The shape will change, producing electricity.
Charging shorts can achieve 4 hours of mobile phone charging, and when people sleep using charging sleeping bags, 11 hours of mobile phone charging can be achieved
“Charging Denim Shorts and Sleeping Bags†uses power and thermoelectric technology to collect human energy to charge mobile phones. The design of this subtle charger was completed with the help of researchers from the University of Southampton under the assistance of Vodafone Mobile. The shorts charger is equipped with a foam-like ferroelectric electret material. As the wearer moves, the ferroelectret material of the shorts is squeezed or deformed to start collecting human kinetic energy. These foam-type materials contain many pores, and the surfaces of the pores can be permanently charged to exhibit piezoelectricity and thermoelectricity.
Piezoelectricity usually refers to the electrical energy generated when a certain material is subjected to extrusion. When the human body presses against the special material of the shorts, it generates a current charging effect. As the voids in the shorts foam material are deformed, the shorts begin to charge, forming a current for charging the cell phone.
At the same time, the charging sleeping bag is also based on the Seebeck effect to collect human thermal energy. This effect produces thermoelectricity, and some materials can be temporarily charged when heated or cooled.
For such a charging sleeping bag, the thermoelectric component in the fabric material of the sleeping bag can monitor the temperature change, and the heat of the sleeper body will pass through the module containing a multi-layer "power blanket". This power blanket contains a polymer film and two semiconductors that generate electrical energy when it is heated.
Vodafone said that when people walk or dance in charging shorts in the future, they will be able to charge their mobile phones for up to 4 hours using their energy. At the same time, after people fall asleep at night, they can use their sleeping bags to charge the phone for 11 hours.
Professor Stephen Beeby of Southampton University said: "We are exploring two special technologies for charging mobile phones - thermoelectric and kinetic energy acquisition. Combined with special smart materials, they will be perfectly portable and portable. Wearing shorts during the day and sleeping in a sleeping bag at night can charge the phone.â€
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