Development of V-based high capacity, high durability protium storage alloys for fuel cell vehicles.

为了实现氢社会，开发高容量、高效率、高耐久性的储氢方法是最迫切的问题。氢（protium）储存合金以其体积效率而闻名，但其在低温下较差的解吸特性和耐久性有待改进。通过本研究，富v的V-Ti-Cr-M（M=Al, Mo）具有较高的有效环丙氨酸容量(约2。高耐用性（200次循环后仍保持99%的初始容量）和良好的氢吸附特性(0。2Mpa -30摄氏度)。截至2011财年，这些合金具有最先进的性能。

For implementation of hydrogen society, development of high volume efficient and high durability hydrogen storage method is the most urgent issue. Hydrogen (protium)storage alloys are known for its volume efficiency but their poor desorption characteristics at cold temperature and durability should be improved. Through this research, V-rich V-Ti-Cr-M(M=Al, Mo)with high effective cyclic protium capacity (about 2. 3mass%), high durability (maintaining 99%of initial capacity after 200 cycles)and good hydrogen de sorption characteristics (0. 2Mpa at-30degree Celsius). These alloys are holding state of the art performance as of Fy2011.