Effects of Solidification Mode on Electrochemical and Hydrogen Storage Properties of Vanadium-based Alloy
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摘要: 分别采用空冷、水冷和液氮冷却三种凝固方式制备了V3TiNi0.56Cr0.4钒基储氢合金, 并进行了电化学性能和储氢性能的测试与分析。结果表明, 凝固方式对合金电化学性能和储氢性能产生明显影响。分别采用空冷、水冷和液氮冷却的合金, 充放电循环20次后放电容量分别衰减了84%、73%、38%, 室温最大吸氢量分别达到1.467%、1.514%、1.832%。Abstract: The vanadium-based hydrogen storage alloy V3TiNi0.56Cr0.4 was respectively prepared by solidification modes of air cooling,water cooling and liquid nitrogen cooling,and the electrochemical and hydrogen storage properties of the obtained alloy were tested and analyzed. The results show that solidification mode has evident effects on the electrochemical and hydrogen storage properties of the alloy. Respectively using air cooling,water cooling and liquid nitrogen cooling,the discharge capacity of the alloy after charge-discharge cycles for 20 times is decayed by 84%,73% and 38%,while the maximum hydrogen uptake at room temperature can reach to 1.467%,1.514% and 1.832%,respectively.
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