{"id":74987,"date":"2016-11-21T08:03:34","date_gmt":"2016-11-21T13:03:34","guid":{"rendered":"https:\/\/www.ucf.edu\/news\/?p=74987"},"modified":"2022-06-27T14:07:11","modified_gmt":"2022-06-27T18:07:11","slug":"phone-charges-seconds-ucf-scientists-bring-closer-reality","status":"publish","type":"post","link":"https:\/\/www.ucf.edu\/news\/phone-charges-seconds-ucf-scientists-bring-closer-reality\/","title":{"rendered":"A Phone That Charges in Seconds? UCF Scientists Bring it Closer to Reality"},"content":{"rendered":"

A team of UCF scientists has developed a new process for creating flexible supercapacitors that can store more energy and be recharged more than 30,000 times without degrading.<\/p>\n

The novel method from the University of Central Florida\u2019s NanoScience Technology Center could eventually revolutionize technology as varied as mobile phones and electric vehicles.<\/p>\n

\u201cIf they were to replace the batteries with these supercapacitors, you could charge your mobile phone in a few seconds and you wouldn\u2019t need to charge it again for over a week,\u201d said Nitin Choudhary, a postdoctoral associate who conducted much of the research published recently in the academic journal ACS Nano<\/em>.<\/p>\n

Anyone with a smartphone knows the problem: After 18 months or so, it holds a charge for less and less time as the battery begins to degrade.<\/p>\n

Scientists have been studying the use of nanomaterials<\/a> to improve supercapacitors that could enhance or even replace batteries in electronic devices. It\u2019s a stubborn problem, because a supercapacitor that held as much energy as a lithium-ion battery would have to be much, much larger.<\/p>\n

The team at UCF has experimented with applying newly discovered two-dimensional materials only a few atoms thick to supercapacitors. Other researchers have also tried formulations with graphene and other two-dimensional materials, but with limited success.<\/p>\n

\u201cThere have been problems in the way people incorporate these two-dimensional materials into the existing systems \u2013 that\u2019s been a bottleneck in the field. We developed a simple chemical synthesis approach so we can very nicely integrate the existing materials with the two-dimensional materials,\u201d said principal investigator Yeonwoong \u201cEric\u201d Jung, an assistant professor with joint appointments to the NanoScience Technology Center and the Materials Science & Engineering Department.<\/p>\n

Jung\u2019s team has developed supercapacitors composed of millions of nanometer-thick wires coated with shells of two-dimensional materials. A highly conductive core facilitates fast electron transfer for fast charging and discharging. And uniformly coated shells of two-dimensional materials yield high energy and power densities.<\/p>\n

Scientists already knew two-dimensional materials held great promise for energy storage applications. But until the UCF-developed process for integrating those materials, there was no way to realize that potential, Jung said.<\/p>\n

\u201cFor small electronic devices, our materials are surpassing the conventional ones worldwide in terms of energy density, power density and cyclic stability,\u201d Choudhary said.<\/p>\n

Cyclic stability defines how many times it can be charged, drained and recharged before beginning to degrade. For example, a lithium-ion battery can be recharged fewer than 1,500 times without significant failure. Recent formulations of supercapacitors with two-dimensional materials can be recharged a few thousand times.<\/p>\n

By comparison, the new process created at UCF yields a supercapacitor that doesn\u2019t degrade even after it\u2019s been recharged 30,000 times.<\/p>\n

Jung is working with UCF\u2019s Office of Technology Transfer to patent the new process.<\/p>\n

Supercapacitors that use the new materials could be used in phones and other electronic gadgets, and electric vehicles that could benefit from sudden bursts of power and speed. And because they\u2019re flexible, it could mean a significant advancement in wearable tech, as well.<\/p>\n

\u201cIt\u2019s not ready for commercialization,\u201d Jung said. \u201cBut this is a proof-of-concept demonstration, and our studies show there are very high impacts for many technologies.\u201d<\/p>\n

In addition to Choudhary and Jung, the research team included Chao Li, Julian Moore and Associate Professor Jayan Thomas, all of the UCF NanoScience Technology Center; and Hee-Suk Chung of Korea Basic Science Institute in Jeonju, South Korea.<\/p>\n","protected":false},"excerpt":{"rendered":"A team of UCF scientists has developed a new process for creating flexible supercapacitors that can store more energy and be recharged more than 30,000 times without degrading. The novel method from the University of Central Florida\u2019s NanoScience Technology Center could eventually revolutionize technology as varied as mobile phones and electric vehicles. \u201cIf they were to replace the batteries with…","protected":false},"author":30,"featured_media":74988,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"template-twocol.php","format":"standard","meta":{"_acf_changed":false,"lazy_load_responsive_images_disabled":false,"footnotes":"","_links_to":"","_links_to_target":"","_wp_rev_ctl_limit":""},"categories":[5,23,24],"tags":[982,13797,3279,15761],"tu_author":[],"class_list":["post-74987","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-colleges","category-research","category-science-technology","tag-college-of-sciences","tag-materials-science-and-engineering","tag-nanoscience-technology-center","tag-pegasus-briefs"],"yoast_head":"\nA Phone Charges in Seconds? 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