title: Bottom-up preparation of MgH₂ nanoparticles with enhanced cycle life stability during electrochemical conversion in Li-ion batteries.
abstract: 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.
authors.affiliation: Institut de Chimie et des Matériaux Paris-Est, CNRS UPEC UMR 7182, 2-8 rue Henri Dunant, 94320 Thiais, France. claudia.zlotea@icmpe.cnrs.fr.
authors.forename: Yassine
authors.initials: Y
authors.lastname: Oumellal
authors.forename: Claudia
authors.initials: C
authors.lastname: Zlotea
authors.forename: Stéphane
authors.initials: S
authors.lastname: Bastide
authors.forename: Christine
authors.initials: C
authors.lastname: Cachet-Vivier
authors.forename: Eric
authors.initials: E
authors.lastname: Léonel
authors.forename: Stéphane
authors.initials: S
authors.lastname: Sengmany
authors.forename: Eric
authors.initials: E
authors.lastname: Leroy
authors.forename: Luc
authors.initials: L
authors.lastname: Aymard
authors.forename: Jean-Pierre
authors.initials: JP
authors.lastname: Bonnet
authors.forename: Michel
authors.initials: M
authors.lastname: Latroche