Effect of Addition Amount of Rare Earth Ce on Microstructure and Electrochemical Properties of Vanadium-based Hydrogen Storage Alloys AITranslate
Abstract AITranslate
In order to improve the cycle stability of the anode materials of Ni/MH battery,the vanadium-based hydrogen storage alloys of V2Ti0.5Cr0.5NiCex(x=0~0.10)were prepared by vacuum arc-melting.The effect of adding different contents of rare earth Ce on the microstructure and electrochemical properties of hydrogen storage alloys was analyzed.The results show that all of V2Ti0.5Cr0.5NiCex(x=0~0.10)alloys are mainly composed of vanadium-based solid solution main phase with BCC structure and TiNi se-condary phase.As the addition amount of Ce in hydrogen storage alloys increases,the discharge capacity of the prepared alloys as the anode materials of Ni/MH battery firstly increases and then decreases.The alloy electrode has the best comprehensive electrochemical properties at x=0.08:Its maximum discharge capacity reaches 409 mA·h/g,and the capacity retention rate is 87.2%after 100 cycles of charge and discharge.
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DOI：
Chinese Library Classification Number:TG139.7[一般工业技术—材料科学与工程]
Citation Information:
In order to improve the cycle stability of the anode materials of Ni/MH battery,the vanadium-based hydrogen storage alloys of V2Ti0.5Cr0.5NiCex(x=0~0.10)were prepared by vacuum arc-melting.The effect of adding different contents of rare earth Ce on the microstructure and electrochemical properties of hydrogen storage alloys was analyzed.The results show that all of V2Ti0.5Cr0.5NiCex(x=0~0.10)alloys are mainly composed of vanadium-based solid solution main phase with BCC structure and TiNi se-condary phase.As the addition amount of Ce in hydrogen storage alloys increases,the discharge capacity of the prepared alloys as the anode materials of Ni/MH battery firstly increases and then decreases.The alloy electrode has the best comprehensive electrochemical properties at x=0.08:Its maximum discharge capacity reaches 409 mA·h/g,and the capacity retention rate is 87.2%after 100 cycles of charge and discharge.
quote
| GB/T 7714-2015 | [1] TONG Yan-wei, LI Na-li, ZHANG Xue-feng. Effect of Addition Amount of Rare Earth Ce on Microstructure and Electrochemical Properties of Vanadium-based Hydrogen Storage Alloys[J]. Rare Metals and Cemented Carbides, 2021(6): 42-46. |
| MLA | [1] TONG Yan-wei, et al., "Effect of Addition Amount of Rare Earth Ce on Microstructure and Electrochemical Properties of Vanadium-based Hydrogen Storage Alloys." Rare Metals and Cemented Carbides, no. 6, 2021, pp. 42-46. |
| APA | [1] TONG Yan-wei, LI Na-li, & ZHANG Xue-feng. (2021). Effect of Addition Amount of Rare Earth Ce on Microstructure and Electrochemical Properties of Vanadium-based Hydrogen Storage Alloys. Rare Metals and Cemented Carbides(6), 42-46. |
| IEEE | [1] TONG Yan-wei, LI Na-li, and ZHANG Xue-feng, "Effect of Addition Amount of Rare Earth Ce on Microstructure and Electrochemical Properties of Vanadium-based Hydrogen Storage Alloys," Rare Metals and Cemented Carbides, no. 6, pp. 42-46, 2021. keywords: {anode material;hydrogen storage alloy;rare earth Ce;addition amount;cycle stability;electrochemical property} |