502030 lipo battery.The University of Glasgow in the UK develops flexible supercapacitors using graphene and polyurethane materials

　　According to foreign media reports, a group of engineers at the University of Glasgow in the UK are discussing how to use graphene and polyurethane layers to create a flexible supercapacitor that can absorb and store energy for later use. Engineers demonstrated the effect of the new material. The supercapacitor can charge various devices, including: 84 LED lights and high-torque motors in a prosthetic hand. The prosthetic hand can grab various targets after receiving power. The Bendable Electronics and Sensing Technologies (BEST) research group at the University of Glasgow in the UK is developing automatic functional electronic skins and portable devices. The research project is led by Ravinder Dahiya. The topmost touch-sensing layer was developed by members of the BEST research team and is made of graphene, a flexible and transparent "super-material" carbon layer that is as thick as one atom. quite. After sunlight penetrates the touch sensing layer on the top, it reaches the flexible photovoltaic cells (photovoltaic cells) layer, thereby generating electricity. In addition, the surplus electricity will be stored in newly developed supercapacitors, which are made of graphite-polyurethane composites. The research team is committed to formulating the ideal ratio of graphite and polyurethane, aiming to provide a relatively large electroactive surface area where chemical reactions will occur to generate electrical energy. Researchers are interested in creating a high-energy-dense flexible supercapacitor that can charge and discharge quickly. The voltage output of similar supercapacitors developed earlier is around 1V. To a large extent, this type of single supercapacitor is not suitable for providing power to many electronic devices. However, the research team's new supercapacitor can output a voltage of 2.5V, which is more suitable for many common applications. During the laboratory testing phase, the supercapacitor has completed nearly 15,000 charges and discharges, and the loss of its storage capacity is not large.

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