High‐Performance P2‐Type Na2/3(Mn1/2Fe1/4Co1/4)O2 Cathode Material with Superior Rate Capability for Na‐Ion Batteries. Issue 22 (22nd September 2015)

• Record Type: Journal Article
• Authors: Liu, Lei; Li, Xin; Bo, Shou‐Hang; Wang, Yan; Chen, Hailong; Twu, Nancy; Wu, Di; Ceder, Gerbrand
• Is Part Of: Advanced energy materials. Volume 5:Issue 22(2015:Nov.)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2015-09-22
• Subjects: batteries -- electrodes -- sodium; Energy harvesting -- Materials -- Periodicals; Energy conversion -- Materials -- Periodicals; Energy storage -- Materials -- Periodicals; Photovoltaics -- Periodicals; Fuel cells -- Periodicals; Thermoelectric materials -- Periodicals; 621.31
• DOI: 10.1002/aenm.201500944
• Languages: English
• ISSNs: 1614-6832

Abstract

Abstract : A high‐power P2‐Na2/3 (Mn1/2 Fe1/4 Co1/4 )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.