Construction of “Phase Diagram of Electrochemical Discharge Capacity” for RE-Mg-Ni-based Hydrogen Storage Electrode Alloys

Home > Archive>Volume 47, Issue 7, 2018 >2107-2112

Construction of “Phase Diagram of Electrochemical Discharge Capacity” for RE-Mg-Ni-based Hydrogen Storage Electrode Alloys
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Affiliation:State Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Advanced Ferrometallurgy & School of Materials Science and Engineering, Shanghai University,State Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Advanced Ferrometallurgy & School of Materials Science and Engineering, Shanghai University,State Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Advanced Ferrometallurgy & School of Materials Science and Engineering, Shanghai University,CompuTherm LLC,State Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Advanced Ferrometallurgy & School of Materials Science and Engineering, Shanghai University,
Clc Number:TG139+.7
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Abstract:

A new method for hydrogen storage electrode alloys design was proposed. It combines the calculation of the phase diagram and maximum discharge capacity of an electrode to construct the "phase diagram of electrochemical discharge capacity" for the RE-Mg-Ni-based hydrogen storage electrode alloys. This method can provide guidance for hydrogen storage electrode alloy design with rapid determination of an alloy composition having a high discharge capacity. In RE (Nd, Y, Ce)-Mg-Ni systems, the Nd-Mg-Ni alloys have the highest discharge capacity. The maximum discharge capacity for NdMgNi₄ alloy in Nd-Mg-Ni system is 271.06 mAh/g.

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[Shi Yu, Pang Yuepeng, Luo Qun, Chen Shuanglin, Li Qian, Lou Yuwan. Construction of “Phase Diagram of Electrochemical Discharge Capacity” for RE-Mg-Ni-based Hydrogen Storage Electrode Alloys[J]. Rare Metal Materials and Engineering,2018,47(7):2107~2112.]
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Received:June 14,2016
Revised:July 26,2016
Adopted:August 18,2016
Online: October 10,2018
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