Tencent Digital (compilation: Mi Ke) According to foreign media reports, soon we can use our body's heat to charge the wearable device. The main purpose of achieving this goal is to rely on a new type of flexible supercapacitor that allows wearable devices to use their body heat for self-charging without external power supply or battery replacement.
This is a new concept of energy storage, and researchers call it "thermal metering solid-state supercapacitors." This innovative capacitor allows us to use in addition to the traditional power charging methods can also be used Thermal energy continuously charges wearable devices. "This is the first time we have discovered that solid-state polymer electrolytes can generate thermally induced voltages," said Choongho Yu, a professor at Texas A&M University.
"These voltages can be used to initiate the electrochemical reaction of the charging electrode," Professor Yu said. The working principle of a thermometric solid-state supercapacitor is to convert thermal energy into electrical energy and then simultaneously store the electrical energy in a connected battery.
For example, in addition to the body temperature of a human body, any object having a heat dissipation property can utilize the temperature difference from the surrounding environment to charge the capacitor without using an external power source. At the same time, this supercapacitor also has a flexible characteristic that can be used in a wearable device and integrated into a wireless data transmission networked system, and even a variety of sensors can be built in.
The Internet of Things is a platform that communicates and exchanges data from all electronic devices and sensors and then achieves different purposes. Dr. Yu and his team describe this phenomenon as thermal diffusion by using the temperature difference of solid polymer electrolytes. The supercapacitor is ionically separated, from hot to cold, creating a high thermal energy induced voltage through the temperature difference.
"If this kind of self-heating flexible super capacitor is used in electronic equipment, there will be huge market potential for future thermal diffusion of ions, and it will bring brand-new use methods to wearable devices," Professor Yu said.
At present, the conclusion of this study has been published in the "Advanced Energy Materials" magazine.
Source: dnaindia
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