Binder-Free V2O5 Cathode for High Energy Density Rechargeable Aluminum-Ion Batteries.

ABSTRACT: Nowadays, research on electrochemical storage systems moves into the direction of post-lithium-ion batteries, such as aluminum-ion batteries, and the exploration of suitable materials for such batteries. Vanadium pentoxide (V2O5) is one of the most promising host materials for the intercalation of multivalent ions. Here, we report on the fabrication of a binder-free and self-supporting V2O5 micrometer-thick paper-like electrode material and its use as the cathode for rechargeable aluminum-ion batteries. The electrical conductivity of the cathode was significantly improved by a novel in-situ and self-limiting copper migration approach into the V2O5 structure. This process takes advantage of the dissolution of Cu by the ionic liquid-based electrolyte, as well as the presence of two different

SUBMITTER: Diem AM 

PROVIDER: S-EPMC7075190 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature