Self-supporting VO nanofiber-based electrodes for magnesium-lithium-ion hybrid batteries.

The increasing demand for high energy, sustainable and safer rechargeable electrochemical storage systems for portable devices and electric vehicles can be satisfied by the use of hybrid batteries. Hybrid batteries, such as magnesium-lithium-ion batteries (MLIBs), using a dual-salt electrolyte take advantage of both the fast Li intercalation kinetics of lithium-ion batteries (LIBs) and the dendrite-free anode reactions. Here we report the utilization of a binder-free and self-supporting VO nanofiber-based cathode for MLIBs.

Highly Porous Free-Standing rGO/SnO Pseudocapacitive Cathodes for High-Rate and Long-Cycling Al-Ion Batteries.

Establishing energy storage systems beyond conventional lithium ion batteries requires the development of novel types of electrode materials. Such materials should be capable of accommodating ion species other than Li, and ideally, these ion species should be of multivalent nature, such as Al. Along this line, we introduce a highly porous aerogel cathode composed of reduced graphene oxide, which is loaded with nanostructured SnO.