%0 Journal Article
%T Carbon Based Double-layer Capacitor and Composite Power Source<br>碳基电化学双层电容器及复合电源系统的研制
%A WANG Xiao-Feng
%A WANG Da-Zhi
%A LIANG Ji
%A <br>王晓峰
%A 王大志
%A 梁吉
%J 无机材料学报
%D 2002
%I Science Press
%X The electrochemical storage of energy in a special kind of active carbon materials used as capacitor electrodes was considered. Petroleum coke was used to prepared activated carbons with special porosities and structures by NaOH and vapor etching with catalysis of NaHCO3 in turn. Nitrogen adsorption was used to characterize the porous structure of the carbons. Carbon electrodes were fabricated to serve as electrodes of double layer capacitors. The electrochemical performance of the capacitors in 6M KOH was investigated with constant current charge and discharge experiments. A specific capacitance larger than 160F/g was achieved with an electrode composed of 75% active carbon and 20% graphite. Evaluation of capacitor performance by different techniques, e.g. voltammetry, impedance spectroscopy characteristics was also discussed. A hybrid power source consisting of nickel-hydrogen battery and double layer capacitor was demonstrated to power successfully simulated power loads encountered in communication equipment or hybrid electric vehicle (HEV).
%K supercapacitor
%K double layer capacitor
%K active carbon
%K composite power source<br>碳基电化学双层电容器
%K 复合电源系统
%K 超电容器
%K 双电层电容
%K 活性炭
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=ABC0063016AF57E1C73EF43C8D2212BD&aid=AF8D6478D96358B7&yid=C3ACC247184A22C1&vid=BCA2697F357F2001&iid=B31275AF3241DB2D&sid=9905045FEE51B18F&eid=778972EBEFCE1267&journal_id=1000-324X&journal_name=无机材料学报&referenced_num=0&reference_num=6