Surface Characterization of Electrodeposited Lithium Anode with Enhanced Cycleability Obtained by CO 2 Addition

Electrodeposited lithium produced with and without in /propylene carbonate electrolytes was investigated for charge‐discharge cycleability, surface morphology, and composition of the surface layer. The addition of in the electrolyte enhances the cycleability, produces smoother surface morphology, and forms in the inner region of the surface film. This paper describes experimental results showing those three different effects of addition, and discusses the interrelation among them.