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@ARTICLE{Ghosh:639597,
author = {Ghosh, Arindam and Hegde, Rashmi and Sharma, Mayank and
Kumar, Keshav and Grépin, Elisa and Pati, Swapan K. and
Senguttuvan, Premkumar},
title = {{C}hemically {B}oosting {I}ntercalation {V}oltage and
{C}ycling {S}tability of {L}ayered {N}a–{F}e–{M}n–{O}
{C}athode for {N}a-{I}on {B}atteries through {L}i/{C}u
{C}osubstitution},
journal = {Journal of the American Chemical Society},
volume = {147},
number = {36},
issn = {0002-7863},
address = {Washington, DC},
publisher = {ACS Publications},
reportid = {PUBDB-2025-04573},
pages = {33209 - 33222},
year = {2025},
note = {Waiting for fulltext},
abstract = {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 $60\%$ at 1C after 500 cycles in
the window of 4.0–2.0 and 4.0–1.5 V, respectively)
compared to the unsubstituted cathode (58 and $24\%$ at 1C
after 500 cycles in the window of 4.0–2.0 and 4.0–1.5 V,
respectively). The enhanced stability is attributed to the
retention of the O3-type structure and suppressed
Jahn–Teller MnO6 distortion during deep sodiation, as
revealed by X-ray diffraction and X-ray absorption
spectroscopy measurements and DFT calculations. This study
highlights the importance of chemical substitution
strategies in the development of advanced layered oxide
cathodes with higher energy densities and cycling
stabilities.},
cin = {DOOR ; HAS-User},
ddc = {540},
cid = {I:(DE-H253)HAS-User-20120731},
pnm = {6G3 - PETRA III (DESY) (POF4-6G3) / INDIA-DESY - INDIA-DESY
Collaboration $(2020_Join2-INDIA-DESY)$ / FS-Proposal:
I-20210660 (I-20210660) / FS-Proposal: I-20210280
(I-20210280)},
pid = {G:(DE-HGF)POF4-6G3 / $G:(DE-HGF)2020_Join2-INDIA-DESY$ /
G:(DE-H253)I-20210660 / G:(DE-H253)I-20210280},
experiment = {EXP:(DE-H253)P-P65-20150101 /
EXP:(DE-H253)P-P02.1-20150101},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:40878819},
doi = {10.1021/jacs.5c11283},
url = {https://bib-pubdb1.desy.de/record/639597},
}