High-entropy alloys as anode materials of nickel - metal hydride batteries

被引：34

作者：

Edalati, Parisa ^{[1
]}

Mohammadi, Abbas ^{[2
]}

Li, Yongtao ^{[3
]}

Li, Hai-Wen ^{[4
]}

Floriano, Ricardo ^{[5
]}

Fuji, Masayoshi ^{[1
,6
]}

Edalati, Kaveh ^{[2
]}

机构：

[1] Nagoya Inst Technol, Dept Life Sci & Appl Chem, Tajimi, Japan

[2] Kyushu Univ, WPI Int Inst Carbon Neutral Energy Res WPI I2CNER, Fukuoka, Fukuoka, Japan

[3] Anhui Univ Technol, Sch Mat Sci & Engn, Maanshan, Peoples R China

[4] Hefei Gen Machinery Res Inst, Hefei, Peoples R China

[5] Univ Campinas FCA UNICAMP, Sch Appl Sci, Limeira, Brazil

[6] Nagoya Inst Technol, Adv Ceram Res Ctr, Tajimi, Japan

来源：

SCRIPTA MATERIALIA | 2022年 / 209卷

关键词：

High-entropy alloys (HEAs); High-entropy hydrides; Energy storage; Hydrogen storage; Ni-MH battery; HYDROGEN STORAGE; OXIDES;

D O I：

10.1016/j.scriptamat.2021.114387

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

High-entropy alloys are potential candidates for various applications including hydrogen storage in the hydride form and energy storage in batteries. This study employs HEAs as new anode materials for nickel - metal hydride (Ni-MH) batteries. The TixZr2-xCrMnFeNi alloys with different Ti/Zr ratios, having the C14 Laves structure, are used. These alloys are selected because they show room-temperature hydriding/dehydriding capability. The HEAs successfully act as negative electrode of Ni-MH batteries with good charge/discharge cyclability, while there are optimum Ti/Zr ratios for the highest storage capacity and the fastest activity. These findings introduce HEAs as potential anode materials for Ni-MH battery application. (C) 2021 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页数：5

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