High‐Performance P2‐Type Na_2/3(Mn_1/2Fe_1/4Co_1/4)O₂ Cathode Material with Superior Rate Capability for Na‐Ion Batteries

Abstract

A high-power P2-Na2/3(Mn1/2Fe1/4Co1/4)O2 (P2-MFC) cathode material is synthesized and investigated for Na-ion batteries. P2 type stacking is observed for a wide range of Na content (0.34 < x < 0.95). Even at 30 C rate a discharge capacity of 130 mAh g−1 is maintained, which is currently the highest rate performance among Na ion intercalation compounds. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.