Electronic State-Modulated Ni₄N/Zn₃N₂ Heterogeneous Nanosheet Arrays Toward Dendrite-Free and Kinetic-Enhanced Li-S Full Batteries

The applications of lithium (Li)-sulfur (S) batteries are simultaneously hampered by the unlimited dendritic Li growth and the sluggish redox kinetics of polysulfides (LiPSs). In this work, an electronic state-modulated Ni4N/Zn3N2 heterogeneous nanosheet arrays is painstakingly fabricated on the surface of carbon cloth (CC@Ni4N/Zn3N2) as an efficient bi-service host to promote uniform Li deposition and boost efficient LiPSs catalysis. It is found that the electronic structure of Ni4N/Zn3N2 heterostructure is modulated to realize a rational transition metal d-band center, and its built-in electric field (BIEF) within the heterointerfaces facilitates the interfacial charge transfer, resulting in low Li deposition/migration energy barrier and efficient LiPSs adsorption/catalytic conversion kinetics. As a result, the as-prepared CC@Ni4N/Zn3N2-Li anode can enable the Li.