Quasi-solid state rechargeable Na-CO₂ batteries with reduced graphene oxide Na anodes.

ABSTRACT: Na-CO₂ batteries using earth-abundant Na and greenhouse gas CO₂ are promising tools for mobile and stationary energy storage, but they still pose safety risks from leakage of liquid electrolyte and instability of the Na metal anode. These issues result in extremely harsh operating conditions of Na-CO₂ batteries and increase the difficulty of scaling up this technology. We report the development of quasi-solid state Na-CO₂ batteries with high safety using composite polymer electrolyte (CPE) and reduced graphene oxide (rGO) Na anodes. The CPE of PVDF-HFP [poly(vinylidene fluoride-co-hexafluoropropylene)]-4% SiO₂/NaClO₄-TEGDME (tetraethylene glycol dimethyl ether) has high ion conductivity (1.0 mS cm^-1), robus

SUBMITTER: Hu X 

PROVIDER: S-EPMC5287700 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature