Nitrogen-enriched precursor lowers debromination temperature for solid-state polymerization into high-performance lithium storage electrodes

Abstract

Doubling the number of pyridinic nitrogen atoms in the precursor markedly lowers the debromination onset temperature, enabling endogenous solid-state polymerization under mild conditions to form a robust, nitrogen-rich π-conjugated network that delivers a reversible lithium storage capacity of ∼910 mA h g⁻¹ at 0.1 A g⁻¹ with outstanding cycling stability.