Isolated Single-Atom Ni–N5 Catalytic Site in Hollow Porous Carbon Capsules for Efficient Lithium–Sulfur Batteries

Lithium–sulfur (Li–S) batteries suffer from multiple complex and often interwoven issues, such as the low electronic conductivity of sulfur and Li 2 S/Li 2 S 2, shuttle effect, and sluggish electrochemical kinetics of lithium polysulfides (LiPSs). Guided by theoretical calculations, a multifunctiona... View More