Synthesis of Nonstoichiometric Amorphous Mg-Based Alloy Electrodes by Mechanical Milling

Sun, Liping; Wang, Guoxiu; Liu, H. K; Bradhurst, D. H.; Dou, S. X.

doi:10.1149/1.1390976

Cited by 25 publications

(2 citation statements)

References 25 publications

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“…The capacity of the flat voltage was about 80% of the overall discharge capacity, and the overpotential was small. The flat plateaus suggest a two-phase reaction mechanism [3], and electrochemical reaction can be described as Li 4 ing the charge-discharge cycling [30]. Thus, Li 4 Ti 5 O 12 was often called as a zero-strain material with a promising cyclability.…”

Section: Electrochemical Analysismentioning

confidence: 99%

Ball milling-assisted sol–gel route to Li4Ti5O12 and its electrochemical properties

Yan

Fang

Zhao

et al. 2009

Journal of Alloys and Compounds

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Section: Electrochemical Analysismentioning

confidence: 99%

Ball milling-assisted sol–gel route to Li4Ti5O12 and its electrochemical properties

Yan

Fang

Zhao

et al. 2009

Journal of Alloys and Compounds

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“…Mg-based hydrogen storage alloys exhibit many attractive prospects, such as the high absorbability of hydrogen, richer mineral resources, lower cost, and lower density [1][2][3]. However, they are still far from practical applications because of the serious degradation of the discharge capacity during charge/discharge cycles, as well as the poor dehydrogenation kinetics at room temperature.…”

Section: Introductionmentioning

confidence: 99%

Crystallization Behavior of Mg60Ni23.6La16.4 Metallic Glass

Zhuang

2012

AMR

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Mg60Ni23.6La16.4 amorphous ribbon was prepared by melting-spinning method and the crystallization behavior was investigated by differential scanning calorimetry (DSC). The Mg60Ni23.6La16.4 crystallization process exhibits two stages of crystallization and shows an obviously kinetic nature. Isothermal DSC curves indicate that the crystallization is a nucleation-and-growth procedure. The activation energy analysis based on Kissinger Method shows that the growth process for the first crystallization procedure is more difficult than that for the second one. Calculation based on the Johnson-Mehl-Avrami (JMA) model shows that the primary crystallization starts from small crystalline grains with an increasing nucleation rate.

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Enhanced electrochemical properties of nonstoichiometric amorphous Mg2Ni1.3 electrodes

et al. 2005

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Nonstoichiometric amorphous Mg 2 Ni 1.3 alloys were synthesized by mechanically milling crystalline Mg 2 Ni alloy with Ni powders. In comparison with the stoichiometric material, the nonstoichiometric Mg 2 Ni 1.3 phase showed a higher discharge capacity because of the amorphization of the alloy. Surface modification with graphite was also carried out for further improvement of its electrode performance. The coated powders showed a better cyclic stability because the graphite protected the Mg from oxidation. The rate capability (RC) and discharge capacity of electrodes was also markedly improved with graphite coating due to the excellent electrical conductivity and electrocatalytic activity of graphite.

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Synthesis of Nonstoichiometric Amorphous Mg-Based Alloy Electrodes by Mechanical Milling

Cited by 25 publications

References 25 publications

Ball milling-assisted sol–gel route to Li4Ti5O12 and its electrochemical properties

Ball milling-assisted sol–gel route to Li4Ti5O12 and its electrochemical properties

Crystallization Behavior of Mg<sub>60</sub>Ni<sub>23.6</sub>La<sub>16.4</sub> Metallic Glass

Enhanced electrochemical properties of nonstoichiometric amorphous Mg2Ni1.3 electrodes

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