Engineering high-energy-density sodium battery anodes for improved cycling with superconcentrated ionic-liquid electrolytes

• Published in: Nature materials Vol. 19; no. 10; pp. 1096 - 1101
• Main Authors: Rakov, Dmitrii A., Chen, Fangfang, Ferdousi, Shammi A., Li, Hua, Pathirana, Thushan, Simonov, Alexandr N., Howlett, Patrick C., Atkin, Rob, Forsyth, Maria
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 01.10.2020; Nature Publishing Group
• Subjects: 639/301/299/891; 639/638/440; 639/638/563/981; Anodes; Atomic force microscopy; Biomaterials; Chemistry and Materials Science; Condensed Matter Physics; Cycles; Dendrites; Dendritic structure; Density; Deposition; Electrodes; Electrolytes; Energy storage; Ionic liquids; Materials Science; Metal concentrations; Metal ions; Molecular dynamics; Nanotechnology; Optical and Electronic Materials; Pollutant deposition; Preconditioning; Safety; Salts; Sodium; Solid electrolytes; Storage batteries

Non-uniform metal deposition and dendrite formation in high-density energy storage devices reduces the efficiency, safety and life of batteries with metal anodes. Superconcentrated ionic-liquid electrolytes (for example 1:1 ionic liquid:alkali ion) coupled with anode preconditioning at more negative...