In a simple and convenient way, mesoporous germanium nanoparticles (mp-Ge NPs) are prepared by a metathesis reaction of magnesium germanide (Mg2Ge) and zinc chloride (ZnCl2) in an autoclave at 300 C. Investigated as anode materials for lithium-ion batteries, the prepared mp-Ge NPs exhibit a high capacity retention of 1048 mA h g1 at 1 C after 1000 cycles and a high rate capacity of 727.1 mA h g1 at 10 C in LiGe half cells. Additionally, a 3.4 V lithium-ion full cell (Ge-LiCoO2) with an energy retention of 85% (268.8 W h kg1) over 100 cycles is achieved.
Dalton Transactions – Royal Society of Chemistry
Published: May 17, 2018
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