An interlaced silver vanadium oxide-graphene hybrid with high structural stability for use in lithium ion batteries.

A silver vanadium oxide (SVO) material with an interlaced structure was prepared using graphene as a two-dimensional substrate that directs the crystal growth in the hydrothermal process. The obtained SVO-graphene hybrid showed high structural stability, and lithium ion batteries (LIBs) using the hybrid as the cathode showed excellent cycling stability and rate performance.

Nanospace-confined formation of flattened Sn sheets in pre-seeded graphenes for lithium ion batteries.

Flattened Sn sheets are prepared from the pre-seeded Sn salt in the interlayer nanospace of a graphene membrane, which acts as a template to shape Sn crystals and prevent the aggregation. The sandwich structure clamping Sn sheets accommodates the volume change during charge/discharge. We show that the hybrid possesses excellent rate performance and cycling stability as an anode for lithium ion batteries.