Macro-mesoporous carbon architectures for confining sulfur and facilitating Li+ transport in high-performance Li-S batteries

Abstract

The NiCo dual-atom/N-doped hierarchical porous carbon cathode, prepared using a one-pot strategy with a Zn(OAc)₂ hard template, features macro- and mesopores that enables strong polysulfide regulation and accelerated bidirectional conversion in Li-S batteries, achieving an initial capacity of 987.0 mA h g^-1 at 1C with a capacity decay of merely 0.031% per cycle over 500 cycles under high sulfur loading and lean electrolyte.