ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(6), P. 7119 - 7129
Published: Jan. 31, 2024
Manganese-based
layered
oxides
are
considered
promising
cathodes
for
sodium
ion
batteries
due
to
their
high
capacity
and
low-cost
manganese
resources.
Triggering
the
anionic
redox
reaction
(ARR)
can
exceed
limitation
determined
by
conventional
cationic
redox.
However,
unstable
ARR
charge
compensation
Jahn–Teller
distortion
of
Mn3+
ions
readily
result
in
structural
degradation
rapid
fade.
Here,
we
report
a
P2-type
Na0.8Li0.2Mn0.7Cu0.1O2
cathode
that
shows
retention
84.5%
at
200
mA/g
after
cycles.
Combining
situ
X-ray
diffraction
multi
other
ex
characterizations,
reveal
enhanced
cycling
stability
is
ascribed
slow
release
activity
which
well
suppress
favor
reversibility.
Furthermore,
density-functional
theory
calculations
demonstrate
inhibited
interlayer
migration
reduced
band
gap
facilitate
kinetic
behavior
ARR.
These
findings
provide
perspective
designing
high-energy-density
materials
with
activity.
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(8), P. 10218 - 10226
Published: Feb. 21, 2024
Aqueous
zinc-ion
batteries
(AZIBs)
have
gained
significant
attentions
for
their
inherent
safety
and
cost-effectiveness.
However,
challenges,
such
as
dendrite
growth
anodic
corrosion
at
the
Zn
anode,
hinder
commercial
viability.
In
this
paper,
an
organic-inorganic
coating
layer
(Nafion-TiO
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(33)
Published: June 14, 2024
Extensively-used
rechargeable
lithium-ion
batteries
(LIBs)
face
challenges
in
achieving
high
safety
and
long
cycle
life.
To
address
such
challenges,
ultrathin
solid
polymer
electrolyte
(SPE)
is
fabricated
with
reduced
phonon
scattering
by
depositing
the
composites
of
ionic-liquid
(1-ethyl-3-methylimidazolium
dicyamide,
EMIM:DCA),
polyurethane
(PU)
lithium
salt
on
polyethylene
separator.
The
robust
flexible
separator
matrix
not
only
reduces
thickness
improves
mobility
Li
Small,
Journal Year:
2023,
Volume and Issue:
19(44)
Published: July 5, 2023
Abstract
Na
3
(VO)
2
(PO
4
)
F
(NVOPF)
has
emerged
as
one
of
the
most
promising
cathode
materials
for
sodium‐ion
batteries
(SIBs)
attributed
to
its
high
specific
capacity
(130
mAh
g
−1
),
operation
voltage
(>3.9
V
vs
+
/Na),
and
excellent
structural
stability
(<2%
volume
change).
However,
comparatively
low
intrinsic
electronic
conductivity
(≈10
−7
S
cm
NVOPF
leads
unsatisfactory
electrochemical
performance,
especially
at
rates,
limiting
practical
applications.
To
improve
enhance
storage
many
efforts
have
been
devoted
designing
NVOPF,
including
morphology
optimization,
hybridization
with
conductive
materials,
metal‐ion
doping,
Na‐site
regulation,
F/O
ratio
adjustment.
These
attempts
shown
some
encouraging
achievements
shed
light
on
application
cathodes.
This
work
aims
provide
a
general
introduction,
synthetic
methods,
rational
design
give
deeper
understanding
recent
progress.
Additionally,
unique
microstructure
relationship
properties
are
also
described
in
detail.
The
current
status,
well
advances
limitations
such
SIB
material,
reported.
Finally,
future
perspectives
guidance
advancing
high‐performance
cathodes
toward
applications
presented.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(15)
Published: Jan. 8, 2024
Advanced
battery
electrodes
require
a
cautious
design
of
microscale
particles
with
built-in
nanoscale
features
to
exploit
the
advantages
both
micro-
and
nano-particles
relative
their
performance
attributes.
Herein,
dynamic
behavior
nanosized
Sn
clusters
host
pores
in
carbon
nanofiber)
during
sodiation
desodiation
is
revealed
using
state-of-the-art
3D
electron
microscopic
reconstruction
technique.
For
first
time,
anomalous
expansion
after
observed
owing
aggregation
clusters/single
atoms.
Pore
connectivity
retained
despite
expansion,
suggesting
inhibition
solid
electrolyte
interface
formation
sub-2-nm
pores.
Taking
advantage
nanoconfinement
feature,
CNF
film
nanometer-sized
interconnected
hosting
(≈2
nm)
enables
high
utilization
(95%
at
rate
1
A
g
