Respective Roles of Inner and Outer Carbon in Boosting the K⁺ Storage Performance of Dual-Carbon-Confined ZnSe.

ABSTRACT: Potassium-ion batteries (PIBs) have been considered as potential alternatives for lithium-ion batteries since there is a demand for better anode with superior energy, excellent rate capability, and long cyclability. The high-capacity zinc selenide (ZnSe) anode, which combines the merits of conversion and alloying reactions, is promising for PIBs but suffers from poor cyclability and low electronic conductivity. To effectively boost electrochemical performance of ZnSe, a "dual-carbon-confined" structure is constructed, in which an inner N-doped microporous carbon (NMC)-coated ZnSe wrapped by outer-rGO (ZnSe@i-NMC@o-rGO) is synthesized. Combining finite element simulation, dynamic analysis, and density functional theory calculations, the respective roles of inner- and outer-carbon in boostin

SUBMITTER: Ruan J 

PROVIDER: S-EPMC8844574 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature