陳立業2006-07-252018-06-282006-07-252018-06-282002http://ntur.lib.ntu.edu.tw//handle/246246/12417本實驗室早期研究中發現，在鈦-鋯基合金中添加釩，會使材料的吸放氫量增加及放電量超過300mAh/g。本研究計畫之目的，就是探討釩在鈦-鋯基合金中的角色，了解其提升電容量的機構。故針對不同釩添加量做出研究，找出最佳的釩添加量。研究發現，活化速率及最大電容量會隨著釩含量增加而增加，在高速率放電方面，添加釩亦有良好的結果，在循環壽命方面，由於添加入釩元素後，相對減少了鉻元素的含量，而鉻元素具有提高循環壽命的功效，故提高了釩含量就相對降低了循環壽命。Some preliminary work on the effect of vanadium on AB2Ti-Zr based alloy has been preformed. It was found that with an V addition, the alloy can absorb more hydrogen as compared with that without V. The electric capacity was improved to over 300 mAh/g. The objective of this project is to study the effects and mechanism of V on the capacity improvement. A series of Ti-Zr based alloys with different V contents was produced, and the crystal structure, microstructure etc. have been studied. It was found that the activating rate, discharge capacity increased as vanadium. It also increased the high rate capability. But it decreased the cycle life because of decreasing chromium.application/pdf143064 bytesapplication/pdfzh-TW國立臺灣大學材料科學與工程學研究所鎳氫電池釩電容量晶體結構Nickel–metal hydride batteryVanadiumCapacityCrystal structurereporthttp://ntur.lib.ntu.edu.tw/bitstream/246246/12417/1/902216E002039.pdf