Preparation of Ti–Fe based hydrogen storage alloy by SOM method

✍ Scribed by Xiao Su Ye; Xiong Gang Lu; Chong He Li; Wei Zhong Ding; Xing Li Zou; Yong Hui Gao; Qing Dong Zhong

• Publisher: Elsevier Science
• Year: 2011
• Tongue: English
• Weight: 858 KB
• Volume: 36
• Category: Article
• ISSN: 0360-3199
• DOI: 10.1016/j.ijhydene.2010.04.098

✦ Synopsis

TieFe based

Current efficiency a b s t r a c t Solid-oxide-oxygen-ion conducting membrane (SOM) process is a novel, high efficient, low cost, energy-saving, environmentally friendly electrochemical extraction method of metals or alloys. This work demonstrated the prototype development of preparation of hydrogen storage alloys by SOM process, and TieFe based quaternary alloy was successfully prepared directly from the oxides in molten calcium chloride. The assembling process of electrode utilized in the recycled battery was extended to prepare the novel cathode, it proved that this design can effectively simplify the assembly process and dissolve the problem of incomplete electrolysis. It is shown that SOM electro-deoxidization process was faster and more efficient for the current, the as-prepared alloy showed a good stability in the charging/discharging cycles and the capacity reached 27.88 mAh g À1 after ten activated cycles.