Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6470230 | Electrochimica Acta | 2017 | 8 Pages |
Rechargeable metal-air batteries possess high energy density and are projected to be excellent alternates to the state of the art current storage devices such as Li-ion batteries. The performance of metal-air batteries is guided by the kinetics of electrochemical reactions involving oxygen reduction and oxygen evolution. The present study explores the use of a gel- based electrolyte in combination with a ceramic catalyst based on titanium carbonitride for Li-O2 battery. Stable and highly ionically conducting gel electrolyte combined with active bi-functional electrocatalyst results in flexible and thin cell design. The high bi-functional activity of the electrode for oxygen reduction and oxygen evolution reactions in non-aqueous dimethyl acetamide medium lends itself to be a very good electrode material for Li-O2 chemistry. The Li-O2 cell with the gel electrolyte delivers high energy density of 1040 Wh/kg for 120 continuous cycles at high drain currents of 625Â mA/g.
Graphical abstractDownload high-res image (107KB)Download full-size image