TY  - JOUR
AU  - Ghosh, Arindam
AU  - Hegde, Rashmi
AU  - Sharma, Mayank
AU  - Kumar, Keshav
AU  - Grépin, Elisa
AU  - Pati, Swapan K.
AU  - Senguttuvan, Premkumar
TI  - Chemically Boosting Intercalation Voltage and Cycling Stability of Layered Na–Fe–Mn–O Cathode for Na-Ion Batteries through Li/Cu Cosubstitution
JO  - Journal of the American Chemical Society
VL  - 147
IS  - 36
SN  - 0002-7863
CY  - Washington, DC
PB  - ACS Publications
M1  - PUBDB-2025-04573
SP  - 33209 - 33222
PY  - 2025
N1  - Waiting for fulltext  
AB  - 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
LB  - PUB:(DE-HGF)16
C6  - pmid:40878819
DO  - DOI:10.1021/jacs.5c11283
UR  - https://bib-pubdb1.desy.de/record/639597
ER  -