Salt-assisted recovery of sodium metal anode for high-rate sodium batteries———Wei Weifeng AM, Central South University
Wei Weifeng AM, Central South University: Salt-assisted recovery of sodium metal anode for high-rate sodium batteries Background Rechargeable sodium metal batteries are considered to be one of the most promising electrochemical energy storage systems with high energy density and high cost performance. However, the inactive sodium (Na) formed during storage and assembly processes has seriously hindered its practical application. This chemical instability stems from the high activity of Na, which chemically reacts with oxygen and moisture during electrode processing or electrochemically reacts with the electrolyte during battery operation, easily leading to excessive accumulation of inactive Na species on the surface, resulting in battery performance degradation or even failure.