Lithium-sulfide batteries (LSBs) are highly appealing for the next-generation energy storage systems due to their high theoretical energy density and low cost. However, practical applications of LSBs are still largely hindered by the complicated sulfur redox reactions and the fatal polysulfide shuttling. In nature, cytochrome c reductase works as an efficient biocatalyst for oxidative phosphorylation benefiting from the synergistic electron transfer between porphyrins and sulfur clusters. Inspired by this, herein, two porphyrin-based metal-orga...
