%0 Journal Article
%A Ghosh, Arindam
%A Hegde, Rashmi
%A Sharma, Mayank
%A Kumar, Keshav
%A Grépin, Elisa
%A Pati, Swapan K.
%A Senguttuvan, Premkumar
%T Chemically Boosting Intercalation Voltage and Cycling Stability of Layered Na–Fe–Mn–O Cathode for Na-Ion Batteries through Li/Cu Cosubstitution
%J Journal of the American Chemical Society
%V 147
%N 36
%@ 0002-7863
%C Washington, DC
%I ACS Publications
%M PUBDB-2025-04573
%P 33209 - 33222
%D 2025
%Z Waiting for fulltext  
%X Iron–manganese-based layered Na-ion cathodes are appealing for building low-cost Na-ion batteries. However, their practical realization is hindered by the lower intercalation voltage (<3 V Na+/Na0) and limited cycle life. To tackle these issues, we utilize Li/Cu-cosubstitution into the O3–Na0.80(Fe0.50Mn0.50)O2 cathode to tune the ionocovalency of Fe/Mn–O bonds, which in turn can modulate the electrochemical properties. With the cosubstitution, the intercalation voltage of Na0.80(Li0.10Cu0.10Fe0.30Mn0.50)O2 is raised to >3.2 V, thanks to the introduction of Cu3+/Cu2+ redox and enhanced Fe–O bond ionicity. Na0.80(Li0.10Cu0.10Fe0.30Mn0.50)O2 displays extraordinary cycling stability (98 and 60
%F PUB:(DE-HGF)16
%9 Journal Article
%$ pmid:40878819
%R 10.1021/jacs.5c11283
%U https://bib-pubdb1.desy.de/record/639597