Exfoliation and Reassembly Routes to a Ge/RuO Nanocomposite as an Anode for Advanced Lithium-Ion Batteries.

Ge/RuO nanocomposites were successfully fabricated as anode materials for lithium-ion batteries using RuO nanosheets and Ge/GeO nanoparticles (NPs). X-ray diffraction (XRD) and X-ray absorption spectroscopy (XAS) analyses showed that elemental Ge nanoparticles were distributed onto the rutile-type RuO. Transmission electron microscopy images showed well-dispersed Ge nanoparticles embedded in rutile-type RuO.

Microwave-Assisted Synthesis of Ge/GeO-Reduced Graphene Oxide Nanocomposite with Enhanced Discharge Capacity for Lithium-Ion Batteries.

Germanium/germanium oxide nanoparticles with theoretically high discharge capacities of 1624 and 2152 mAh/g have attracted significant research interest for their potential application as anode materials in Li-ion batteries. However, these materials exhibit poor long-term performance due to the large volume change of 370% during charge/discharge cycles. In the present study, to overcome this shortcoming, a Ge/GeO/graphene composite material was synthesized.