Development of Fluoride-Ion Primary Batteries: The Electrochemical Defluorination of CF .

The lithium-carbon monofluoride (Li-CF ) couple has the highest specific energy of any practical battery chemistry. However, the large polarization associated with the CF electrode (>1.5 V loss) limits it from achieving its full discharge energy, motivating the search for new CF reaction mechanisms with reduced overpotential.

Ternary Ionic Liquid Analogues as Electrolytes for Ambient and Low-Temperature Rechargeable Aluminum Batteries.

Rechargeable aluminum (Al) metal batteries are enticing for the coming generation of electrochemical energy storage systems due to the earth abundance, high energy density, inherent safety, and recyclability of Al metal. However, few electrolytes can reversibly electrodeposit Al metal, especially at low temperatures. In this study, Al electroplating and stripping were investigated from 25 °C to -40 °C in mixtures of aluminum chloride (AlCl), 1-ethyl-3-methyl-imidazolium chloride ([EMIm]Cl), and urea.

Reversible Zinc Electrodeposition at -60 °C Using a Deep Eutectic Electrolyte for Low-Temperature Zinc Metal Batteries.

Rechargeable zinc (Zn) metal batteries are attractive for use as electrochemical energy storage systems on a global scale because of the low cost, high energy density, inherent safety, and strategic resource security of Zn metal. However, at low temperatures, Zn batteries typically suffer from high electrolyte viscosity and unfavorable ion transport properties. Here, we studied reversible Zn electrodeposition in mixtures of 1-ethyl-3-methyl-imidazolium bis(trifluoromethylsulfonyl)imide ([EMIm]TFSI) ionic liquid, γ-butyrolactone (GBL) organic solvent, and Zn(TFSI) zinc salt.

Revealing impacts of electrolyte speciation on ionic charge storage in aluminum-quinone batteries by NMR spectroscopy.

Rechargeable aluminum-organic batteries are composed of earth-abundant, sustainable electrode materials while the molecular structures of the organic molecules can be controlled to tune their electrochemical properties. Aluminum metal batteries typically use electrolytes based on chloroaluminate ionic liquids or deep eutectic solvents that are comprised of polyatomic aluminum-containing species. Quinone-based organic electrodes store charge when chloroaluminous cations (AlCl) charge compensate their electrochemically reduced carbonyl groups, even when such cations are not natively present in the electrolyte.