Lithium‐Sulfur Batteries: Ultrafine Co₃Se₄ Nanoparticles in Nitrogen‐Doped 3D Carbon Matrix for High‐Stable and Long‐Cycle‐Life Lithium Sulfur Batteries (Adv. Energy Mater. 19/2020)

Abstract

In article number 1904273, Dehua Zhu, Wei Han and co‐workers graft highly conductive and catalytic Co3Se4 nanoparticles on the surface of a N‐doped 3D carbon matrix as a sulfur host for lithium‐sulfur batteries. The material delivers an excellent cycling performance after five months of operation, suggesting effective inhibition of the polysulfide shuttle.

Improving sulfur transformation of lean electrolyte lithium–sulfur battery using nickel nanoparticles encapsulated in N‐doped carbon nanotubes

“…[27][28][29][30][31][32] In particular, applying an electrocatalytic layer at the cathode/separator interface seems to be a feasible strategy to achieve remarkable battery performance. For example, transition metal carbides, [33][34][35] sulfides, [36][37][38] phosphides, [39][40][41] and selenides 42,43 have been developed as adequate electrocatalysts to propel the LiPSs conversion. Nevertheless, sulfur redox kinetics under lean electrolyte condition, for example, electrolyte/sulfur (E/S) ratio <3 μL mg −1 , are rarely explored.…”