Exploration of Mixed Polyanionic Compound for Potential High-Voltage Cathode Materials in Sodium-Ion Batteries

Open AccessCCS ChemistryRESEARCH ARTICLES9 Apr 2024Exploration of mixed polyanionic compound for potential high-voltage cathode materials in sodium-ion batteries Tianyi Song, Nanzhong Wu, Xiao Zheng, Xinyuan Zhang, Shu Guo, Qi Yan, Wenjiao Yao and Yongbing Tang Tianyi Song , Nanzhong Wu , Xiao Zheng , Xinyuan Zhang , Shu Guo , Qi Yan , Wenjiao Yao and Yongbing Tang https://doi.org/10.31635/ccschem.024.202303615 SectionsSupplemental MaterialAboutPDF ToolsAdd to favoritesDownload CitationsTrack Citations ShareFacebookTwitterLinked InEmail Mixed polyanionic compounds are potential cathode materials for sodium-ion batteries. Herein, considering the advantages of the strong inductive effect of sulfate and the diverse, flexible coordination modes of oxalate, we systematically explored mixed sulfate-oxalate systems and obtained three sodium-contained polyanionic compounds. Interestingly, the novel three-dimensional Na2Co(C2O4)(SO4)·xH2O (x=1–1.5) was found to be a promising cathode material for sodium-ion batteries with good electrochemical activity at high voltage. The present study sets an example of exploring sodium-storage materials in the mixed polyanionic family and provides new insights into designing novel high-voltage cathodes for sodium-based energy storage devices. Download figure Download PowerPoint Previous articleNext article FiguresReferencesRelatedDetails Issue AssignmentNot Yet AssignedSupporting Information Copyright & Permissions© 2024 Chinese Chemical Society Downloaded 0 times PDF downloadLoading ...