The Influence of The Rapid Quenching on The Microstructure and The Electrochemical Properties of Hydrogen Storage Alloy
Abstract：The influence of rapid quenching on the microstructure and theelectrochemical properties of hydrogen storage alloy Ml(NiCoAlMn)5 (Ml=Lanthanum-rich Michmetal) has been investigated by the methods of XRD and TEM and DTA and electrochemical test.The results show that the homogenization of constituents and the decrease of cell volume are main factors influencing electrochemical properties of rapidly quenched hydrogen storage alloy.The constituent homogenization of rapidly quenched alloy by the quenching rate of 10m/s is enough to improve charge-discharge cycling stability,and rapid quenching by that of more than 10m/s has not any more improvement of cycling stability,but decreases cell volume and discharge capacity,so rapidly quenched alloy by the quenching rate of 10m/s possesses the best compositive electrochemical properties in current research.
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Publication Date：2001-03-15
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 8-11 )