摘要
The electrochemical properties, phase structures and microstructures of Ml(NiMnTiCo) 5 hydrogen storage alloys prepared with different processing methods were investigated by electrochemical measurements, XRD, TEM and EDXRD. The rapid solidification such as melt spinning can effectively improve the cycle stability of the alloy, but it also leads to the decrease of initial activation rate and discharge capacity. Annealing at a moderate temperature can make up for these disadvantages. The variation of electrochemical properties for the same alloy prepared by different processing methods is caused by different phase structures and microstructures.
The electrochemical properties, phase structures and microstructures of Ml(NiMnTiCo) 5 hydrogen storage alloys prepared with different processing methods were investigated by electrochemical measurements, XRD, TEM and EDXRD. The rapid solidification such as melt spinning can effectively improve the cycle stability of the alloy, but it also leads to the decrease of initial activation rate and discharge capacity. Annealing at a moderate temperature can make up for these disadvantages. The variation of electrochemical properties for the same alloy prepared by different processing methods is caused by different phase structures and microstructures.
