Potential and challenges for V-based solid solution hydrogen storage alloys

Zhenguang Huang, Chao Li, Yican Chu, Jing Gu, Wenqing Li, Jiaxing Xie, Ge Gao, Haoyu Wang, Meiqiang Fan and Zhendong Yao

Energy, 2025, vol. 316, issue C

Abstract: Vanadium-based alloys, regarded as one of the most promising high-capacity hydrogen storage alloys, have garnered substantial attention and research from scholars. This work systematically reviews the research progress of V-based hydrogen storage alloys over the past 20 years and summarizes all modification works into three aspects: Ternary component design, doping element analysis and process optimization, which can help researchers effectively grasp the core content of the complex literature. In order to solve the pain points of the lack of connection between the composition, microstructure and hydrogen storage properties of different V-based hydrogen storage alloys. It is divided into V-Ti-Mn, V-Ti-Fe and V-Ti-Cr, considering the factors of composition and performance defects, and the subsequent modification measures are proposed for each system. Especially, we proposed a new method to optimize the crystal form, cell parameters and phase stability of the alloy by coordinated modulation of Ti/Cr ratio and V content to better develop the V-Ti-Cr alloys with higher performance for practical application.

Keywords: Hydrogen storage alloy; Metal hydride; V-based alloys; BCC; Phase structure (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:316:y:2025:i:c:s0360544225002166

DOI: 10.1016/j.energy.2025.134574

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