研究了在6mol/LKOH电解液中添加不同浓度KF对商用AB5-型贮氢合金的电化学性能的影响,研究发现合金的循环性能和循环后期的高倍率性能提高,通过XRD,SEM,SEI等分析表明,在电解液中添加KF生成的LaF3能显著提高合金耐腐蚀的能力,同时阻止合金电极在循环过程中析氢过电位降低,提高合金的动力学性能。 The effects of KF concentration in 6mol / L KOH electrolyte on the electrochemical performance of commercial AB5-type hydrogen storage alloys were studied. It was found that the cycling performance of the alloy and the high rate performance in the late cycle were improved. The XRD, SEM, SEI and so on The results show that the addition of LaF3 to the electrolyte can significantly improve the corrosion resistance of the alloy and prevent the hydrogen evolution overpotential of the alloy electrode from decreasing and improve the kinetic performance of the alloy.