Journal
NANOSCALE
Volume 6, Issue 23, Pages 14459-14466Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4nr03444a
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Funding
- Universite Paris-Est Creteil
- Foundation d'entreprise EADS - AIRBUS Group [114-AO12-1209]
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A promising anode material for Li-ion batteries based on MgH2 with around 5 nm average particles size was synthesized by a bottom-up method. A series of several composites containing MgH2 nanoparticles well dispersed into a porous carbon host has been prepared with different metal content up to 70 wt%. A narrow particle size distribution (1-10 nm) of the MgH2 nanospecies with around 5.5 nm average size can be controlled up to 50 wt% Mg. After a ball milling treatment under Ar, the composite containing 50 wt% Mg shows an impressive cycle life stability with a good electrochemical capacity of around 500 mA h g(-1). Moreover, the nanoparticles' size distribution is stable during cycling.
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