Southern News Network News The sycamore catkins and catkins flying all over the sky can also become treasures. The reporter learned today (25th) from the first Nanyou University Student Innovation and Entrepreneurship Achievement Exhibition that several students from the school's School of Materials used them to make supercapacitors that can be used in battery power. This achievement was selected by a technology company, and the two parties will jointly carry out in-depth development.

At yesterday's exhibition site, various vials were placed in front of the booth of the "Resources Research on Yangxu, Indus Flocculent" project, and the labels on them read "Yangxu", "Industrial Cinnamon" and so on. Zhang Ziqiang, a fourth-year student from the School of Materials Science and Engineering, introduced that after these "hairs" are collected, they must first be separated from the sand and soil, use hydrochloric acid to remove impurities, and then use zinc chloride to create holes on the "hairy" micro-tubes to increase the wall surface area. , and finally high-temperature carbonization with argon gas, and the activated "hairy hair" formed is black. They coat it on nickel foam and put it in a coin-cell battery case to make a supercapacitor.

What is a supercapacitor? Instructor Ma Yanwen from the School of Materials introduced that, unlike ordinary capacitors, which use aluminum sheets, supercapacitors are made of porous materials, with large area and high performance, which can instantly generate a lot of power. For example, when an electric vehicle ignites and climbs a hill, it needs instantaneous power, and the supercapacitor can play a great role at this time. Supercapacitors can also be used as power sources and backup power sources. For example, if they are installed in mobile devices, the standby time can be increased by two or three times, which is equivalent to a backup battery.

Ma Yanwen said that the current supercapacitors are mainly made of biological materials such as coconut shell, rice husk, and bamboo charcoal, and their internal structures are spherical pores. The microstructure of the parasol floc is a hollow long tube, with a larger wall surface area, better electrical conductivity, and more "powerful" supercapacitors. He introduced that it was very accidental to discover the "benefits" of Yang Xu and Wutong Xu, "Once I was in a car, a group of Wutong Xu flew to me and I was inspired."

This achievement of Nanyou students was picked up by a biotechnology company in Shanghai. Liang Zheng, vice president of the company, said that college students are very active in thinking, and this achievement "turns waste into treasure", which can reduce the production cost of supercapacitors and has a better market prospect. At present, it has reached a cooperation intention with the students of Nanyou, and will carry out in-depth cooperation in the pilot stage of the product, and provide all-round support in terms of funds, venues, equipment, technology, etc., hoping to make it a market-competitive product.

Author and source: Zhang Qian, Tan Jie; Nanbao.com, May 25, 2013