Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 9, 2024
Abstract
Chloride–ion
batteries
(CIBs)
offer
a
compelling
alternative
to
conventional
battery
systems,
particularly
in
applications
demanding
cost‐effectiveness
and
resource
sustainability.
However,
the
development
of
tailored
electrode
materials
remains
critical
bottleneck
for
CIB
advancement.
In
this
study,
an
untapped
class
perovskite‐based
material,
potassium
hexachlorostannate
(K
2
SnCl
6
,
denoted
as
KSC)
is
synthesized
via
facile
mechanochemical
route
first
time.
The
prepared
KSC
subjected
various
characterization
techniques
confirm
its
crystal
structure
morphology.
Herein,
exhibits
intriguing
electrochemical
performance
non‐aqueous
configuration,
utilizing
lithium
metal
counter
electrode.
Furthermore,
ex
situ
X‐ray
diffraction
(XRD)
photoelectron
spectroscopy
(XPS)
analysis,
reveal
conversion
reaction
mechanism
involving
chloride
ion
shuttling
provide
insights
into
structural
evolution
during
cycling.
Moreover,
density
functional
theory
(DFT)
studies
support
additional
degradation
products
that
can
potentially
limit
these
potential
electrodes
CIBs.
ACS Omega,
Journal Year:
2024,
Volume and Issue:
9(23), P. 24633 - 24642
Published: May 24, 2024
SrFe1–xSixO3−δFy
cathode
materials
(x
=
0.05,
0.1,
0.15;
y
0,
0.5)
were
prepared
via
a
solid-state
method.
X-ray
diffraction
results
show
that
the
synthesized
F
doping
samples
perovskite
structure.
photoelectron
spectroscopy
findings
F–
anions
doped
into
SrFe1–xSixO3−δ.
Transmission
electron
microscopy
and
energy-dispersive
performed
to
analyze
microstructure
element
distribution
in
materials,
respectively.
Double-layer
composite
symmetric
cells
through
screen
printing
Scanning
images
revealed
double-layer
adhered
well
electrolyte.
The
with
can
increase
coefficient
of
thermal
expansion
electrochemical
impedance
indicate
oxygen
transport
capacity
SrFe0.95Si0.05O3−δ
material
be
improved
by
F–,
but
such
method
decrease
SrFe0.9Si0.1O3−δ.
At
800
°C,
peak
power
density
single
cell
supported
an
anode
SrFe0.9Si0.1O3−δF0.1
as
reached
388.91
mW/cm2.
Thus,
incorporation
SrFe1–xSixO3−δ
improve
their
performance
enable
application
for
solid-oxide
fuel
cells.
Journal of Advanced Ceramics,
Journal Year:
2024,
Volume and Issue:
13(9), P. 1337 - 1348
Published: July 1, 2024
Achieving
thermal
cycle
stability
is
an
imperative
challenge
for
the
successful
commercialization
of
solid
oxide
cells
(SOC)
technology.
Ruddlesden-Popper
(R-P)
oxides,
with
their
expansion
coefficient
(TEC)
compatible
common
electrolytes,
are
promising
candidates
SOC
applications.
However,
two-dimensional
conduction
characteristic
R-P
oxides
leads
to
insufficient
catalytic
activity,
which
hinders
performance.
Here,
we
proposed
a
win-win
strategy
self-assembly
decoration,
employing
one-pot
method
address
this
issue.
By
using
single
perovskite
(La0.4Sr0.6FeO3)
modify
(La0.8Sr1.2FeO4+δ),
enhance
electrochemistry
performance
without
compromising
composite
electrode.
The
strategic
incorporation
10
mol%
phase
at
800
°C
resulted
in
significant
49%
reduction
polarization
resistance,
impressive
86%
increase
maximum
power
density
under
generation
mode,
and
notable
33%
electrolysis
current
mode.
Furthermore,
perovskite-decorated
also
exhibit
high
chemical
stability,
negligible
degradation
observed
both
cycling
charge/discharge
conditions.
Our
results
demonstrate
that
such
dual-phase
composite,
simultaneously
produced
by
one-step
process,
outstanding
activity
can
be
considered
effective
advancement
cell.
