Double Nitrogenation Layer Formed Using Nitric Oxide for Enhancing Li⁺ Storage Performance, Cycling Stability, and Safety of Si Electrodes.

ABSTRACT: To enhance Li storage properties, nitrogenation methods are developed for Si anodes. First, melamine, urea, and nitric oxide (NO) precursors are used to nitrogenize carbon-coated Si particles. The properties of the obtained particles are compared. It is found that the NO process can maximize the graphitic nitrogen (N) content and electronic conductivity of a sample. In addition, optimized N functional groups and O─C species on the electrode surface increase electrolyte wettability. However, with a carbon barrier layer, NO hardly nitrogenizes the Si cores. Therefore, bare Si particles are reacted with NO. Core-shell Si@amorphous SiN_x particles are produced using a facile and scalable NO treatment route. The effects of the NO reaction time on the physicochemical properties and cha

SUBMITTER: Hernandha RFH 

PROVIDER: S-EPMC11220681 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature