Improvement in the Electrochemical Lithium Storage Performance of MgH2
AbstractMagnesium hydride (MgH2) exhibits great potential for hydrogen and lithium storage. In this work, MgH2-based composites with expanded graphite (EG) and TiO2 were prepared by a plasma-assisted milling process to improve the electrochemical performance of MgH2. The resulting MgH2–TiO2–EG composites showed a remarkable increase in the initial discharge capacity and cycling capacity compared with a pure MgH2 electrode and MgH2–EG composite electrodes with different preparation processes. A stable discharge capacity of 305.5 mAh·g−1 could be achieved after 100 cycles for the 20 h-milled MgH2–TiO2–EG-20 h composite electrode and the reversibility of the conversion reaction of MgH2 could be greatly enhanced. This improvement in cyclic performance is attributed mainly to the composite microstructure by the specific plasma-assisted milling process, and the additives TiO2 and graphite that could effectively ease the volume change during the de-/lithiation process as well as inhibit the particle agglomeration. View Full-Text
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Yang, S.; Wang, H.; Ouyang, L.; Liu, J.; Zhu, M. Improvement in the Electrochemical Lithium Storage Performance of MgH2. Inorganics 2018, 6, 2.
Yang S, Wang H, Ouyang L, Liu J, Zhu M. Improvement in the Electrochemical Lithium Storage Performance of MgH2. Inorganics. 2018; 6(1):2.Chicago/Turabian Style
Yang, Shuo; Wang, Hui; Ouyang, Liuzhang; Liu, Jiangwen; Zhu, Min. 2018. "Improvement in the Electrochemical Lithium Storage Performance of MgH2." Inorganics 6, no. 1: 2.
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