Red Phosphorus Potassium-Ion Battery Anodes.

ABSTRACT: Phosphorus (P) possesses the highest theoretical specific capacity (865 mA h g^-1) among all the elements for potassium-ion battery (PIB) anodes. Although Red P (RP) has intrinsic advantages over its allotropes, including low cost and nontoxicity, and simpler preparation, it is yet unknown to effectively activate it into a high-performance PIB anode. Here, high-performance RP PIB anodes are reported. Two important factors are found to facilitate RP react with K-ions reversibly: i) nanoscale RP particles are dispersed evenly in a conductive carbon matrix composed of multiwall carbon nanotubes and Ketjen black that provide an efficient electrical pathway and a tough scaffold. ii) The results of X-ray photoelectron spectroscopy spectrum and the electrochemical performance perhaps sh

SUBMITTER: Chang WC 

PROVIDER: S-EPMC6498114 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature