摘要
The rapid development of electric vehicles demands the development of high performance nickel metal hydride battery that is able to endure high temperature. The discharge properties of Ti 0.7 Zr 0.5 V 0.2 Mn 1.8- x Ni x ( x =0.4, 0.8, 1.1, 1.4, 1.7)hydrogen storage alloys was investigated and its phase composition was analyzed using X ray diffraction. The results show that the cycling life was improved as the content of nickel increases. When x =0.4, 0.8, 1.1 and 1.4, the main phase is MgZn 2 type C14 Laves phase and the second one is cubic TiNi phase. When x =1.7, the Laves phase structure disappears. EDAS analysis shows that the increase of nickel content is effective in suppressing the dissolution of vanadium component in alloys. [
The rapid development of electric vehicles demands the development of high performance nickel-metal hydride battery that is able to endure high temperature. The discharge properties of Ti0.7Zr0.5V0.2Mn1.8-xNix (x = 0.4, 0.8, 1.1, 1.4, 1.7)hydrogen storage alloys was investigated and its phase composition was analyzed using X-ray diffraction. The results show that the cycling life was improved as the content of nickel increases. When x = 0.4, 0.8, 1.1 and 1.4, the main phase is MgZn2 type C14 Laves phase and the second one is cubic TiNi phase. When x = 1.7, the Laves phase structure disappears. EDAS analysis shows that the increase of nickel content is effective in suppressing the dissolution of vanadium component in alloys.
出处
《中国有色金属学会会刊：英文版》
CSCD
2001年第3期350-352,共3页
Transactions of Nonferrous Metals Society of China
基金
Project (715 -0 0 4-0 0 60 )supportedbytheNationalAdvancedMaterialsCommitteeofChina
