A Rechargeable Li-Air Fuel Cell Battery Based on Garnet Solid Electrolytes.

ABSTRACT: Non-aqueous Li-air batteries have been intensively studied in the past few years for their theoretically super-high energy density. However, they cannot operate properly in real air because they contain highly unstable and volatile electrolytes. Here, we report the fabrication of solid-state Li-air batteries using garnet (i.e., Li_6.4La₃Zr_1.4Ta_0.6O₁₂, LLZTO) ceramic disks with high density and ionic conductivity as the electrolytes and composite cathodes consisting of garnet powder, Li salts (LiTFSI) and active carbon. These batteries run in real air based on the formation and decomposition at least partially of Li₂CO₃. Batteries with LiTFSI mixed with polyimide (PI:LiTFSI) as a binder show rechargeability at 200 °

SUBMITTER: Sun J 

PROVIDER: S-EPMC5259739 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature