Rapid-charging aluminium-sulfur batteries operated at 85 °C with a quaternary molten salt electrolyte.

ABSTRACT: Molten salt aluminum-sulfur batteries are based exclusively on resourcefully sustainable materials, and are promising for large-scale energy storage owed to their high-rate capability and moderate energy density; but the operating temperature is still high, prohibiting their applications. Here we report a rapid-charging aluminium-sulfur battery operated at a sub-water-boiling temperature of 85 °C with a tamed quaternary molten salt electrolyte. The quaternary alkali chloroaluminate melt - possessing abundant electrochemically active high-order Al-Cl clusters and yet exhibiting a low melting point - facilitates fast Al³⁺ desolvation. A nitrogen-functionalized porous carbon further mediates the sulfur reaction, enabling the battery with rapid-charging capability and excellent cycl

SUBMITTER: Meng J 

PROVIDER: S-EPMC10796388 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature