【摘要】 通过X射线衍射谱（XRD）、气态吸放氢行为（PCT曲线）、电化学充放电性能、电化学阻抗谱（EIS）,考察了Ni添加对Ti_0.47V_0.28Mn_0.15Cr_0.1储氢合金的电化学性能的影响。结果表明:Ti_0.47V_0.28Mn_0.15Cr_0.1的电化学活性很差,在碱液中几乎不能放电,添加Ni之后得到了明显改善。随着Ni含量的增加,Ti_0.47V_0.28Mn_0.15Cr_0.1Ni_x（x=0～0.25）合金电极的放电容量先增大后减小,在x=0.15时达到最大值310mA·h·g^-1。更多还原

【Abstract】 Results of X-ray diffraction （XRD）, pressure-composition-temperature （PCT） curves, discharge curves, electrochemical impedance spectra （EIS） show that the discharge performance of Ti_0.47 V_0.28 Mn_0.15 Cr_0.1 alloy electrode is very poor because of low electrochemical activity, which could be greatly improved by Ni addition. With increase of Ni content, the discharge capacity of Ti_0.47 V_0.28 Mn_0.15 Cr_0.1 Ni_x （x=0—0.25） alloy electrodes increases first and then decreases. When x=0. 15, the maximum discharge capacity of 310 mA · h · g^-1 is achieved.更多还原