Langmuir,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 5, 2025
Sodium-ion
batteries
(SIBs)
have
garnered
significant
attention
as
a
promising
alternative
to
lithium-ion
(LIBs)
owing
their
lower
cost
and
abundant
availability
of
natural
resources.
Hard
carbon
(HC)
is
broadly
recognized
the
most
favorable
anode
material
for
SIBs
because
its
superior
Na-storage
capabilities
economic
viability.
However,
challenges
persist,
such
limited
electrical
conductivity,
poor
cycling
stability,
low
initial
Coulombic
efficiency
(ICE).
In
this
work,
utilizing
Indian
trumpet
flower
seeds
(ITSs)
precursor,
we
successfully
developed
an
innovative
HC
anode,
which
delivers
high
reversible
capacity
380
mAh
g-1,
exceptional
rate
capability
with
65%
retention
at
1500
mA
ICE
89.18%.
addition,
it
exhibits
noteworthy
maintaining
98%
stable
after
400
cycles.
These
improved
performances
are
ascribed
expanded
layer
spacing
increased
formation
closed
mesopores,
achieved
through
simple
efficient
synthetic
approach
incorporating
acid
treatment
P-induced
pore-forming.
This
work
presents
precursor
strategy
producing
advanced
anodes
SIBs.
Batteries,
Journal Year:
2025,
Volume and Issue:
11(2), P. 63 - 63
Published: Feb. 7, 2025
Attention
to
electrochemical
energy
storage
(EES)
devices
continues
grow
as
the
demand
increases
for
systems
in
and
transmission
of
renewable
energy.
The
expanded
market
requirement
mobile
electronics
flexible
electronic
also
calls
efficient
suppliers.
EES
applying
pseudocapacitive
materials
generated
are
gaining
increasing
focus
because
they
capable
overcoming
capacity
limitations
electrical
double-layer
capacitors
(EDLCs)
offsetting
rate
performance
batteries.
mechanism
generally
occurs
on
surface
or
near
electrode
materials,
which
could
avoid
slow
ion
diffusion
process.
Developing
with
beneficial
nanostructures
optimized
phases
supporting
would
efficiently
improve
density
charging
devices,
such
batteries
supercapacitors.
This
review
offers
a
detailed
assessment
pseudocapacitance,
including
classification,
working
mechanisms,
analysis
methods,
promotion
routes
advanced
applications.
future
challenges
facing
effective
utilization
mechanisms
upcoming
discussed.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 19, 2025
Abstract
Aqueous
rechargeable
potassium‐ion
batteries
have
considerable
advantages
and
potentials
in
the
application
of
large‐scale
energy
storage
systems,
owing
to
its
high
safety,
abundant
potassium
resources,
environmental
friendliness.
However,
practical
applications
are
fraught
with
numerous
challenges.
Identification
suitable
cathode
materials
mechanisms
great
significance.
Herein,
an
aqueous
battery
comprising
Prussian
blue
analogs
(K
1.15
Fe[Fe(CN)
6
]·1.36H
2
O)
perylene‐3,4,9,10‐tetracarboxylic
anode
is
designed,
which
delivers
a
density
52.0
Wh
kg
−1
excellent
cycling
stability
capacity
retention
84.5%
after
4000
cycles.
Importantly,
synergistic
study
relationships
among
crystal
structure,
spin
state,
kinetics,
electrochemical
performances
thoroughly
conducted.
By
employing
situ
ex
characterizations,
mechanism
comprehensively
elucidated
from
multiple
perspectives.
Energy Materials,
Journal Year:
2025,
Volume and Issue:
5(7)
Published: March 10, 2025
Flexible
lithium-ion
batteries
(FLBs)
hold
a
promising
future
in
the
fields
of
wearable
electronic
accessories,
therapeutic
devices,
etc
.
due
to
their
long
cycle
life,
good
flexibility,
and
transferable
experience
from
traditional
rigid
batteries.
Additionally,
electrospinning
technology,
as
an
important
method
synthesizing
fiber
materials,
has
controllability
shows
incomparable
advantages
preparation
fiber-based
electrodes.
Therefore,
this
review
first
discusses
assessment
flexibility
proposes
that
standardized
methods
are
foundation
for
development
flexible
energy
storage
devices.
It
then
analyzes
detail
principle
technology
impact
various
parameters
on
electrode
performance,
exploring
controlling
morphology
fibers
by
optimizing
process
parameters.
The
pivotal
role
manufacturing
FLBs
is
also
discussed,
with
particular
focus
its
contribution
enhancing
density,
cycling
stability,
mechanical
both
cathode
anode
materials.
Overall,
provides
guidance
high-performance
FLBs.
C – Journal of Carbon Research,
Journal Year:
2025,
Volume and Issue:
11(1), P. 23 - 23
Published: March 10, 2025
Here,
crystalline
SiO2
quantum
dots
(QDs)
of
3–5
nm
size
were
grown
within
the
layers
reduced
graphene
oxide
(rGO)
by
a
solution
mode
chemical
growth
process
at
relatively
low
temperature
(100
°C).
The
composite
was
applied
as
negative
electrode
in
Li-ion
half-cell
battery
and
electrochemical
investigation
confirmed
distinct
first-cycle
discharge/charge
capacity
(~865
mAhg−1/387
@
51
mAg−1).
could
retain
296
mAhg−1
after
60
charge/discharge
cycles
with
99%
coulombic
efficiency.
Furthermore,
high
current
rate
1.02
Ag−1,
able
to
display
an
apparent
capability
(214.47
mAhg−1),
indicating
mechanical
stability
rate.
A
structural
analysis
revealed
clear
diffraction
peaks
high-resolution
transmission
electron
microscopy
images
showed
discrete
atomic
planes,
thereby
confirming
QDs
rGO.
Advanced Sustainable Systems,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 30, 2025
Abstract
Nanostructured
SiO
x
/C
composites
are
promising
candidates
for
high
energy
density
anodes
with
extended
lifespan
in
next‐generation
Li‐ion
batteries
(LIBs).
However,
integrating
sustainable
precursors
the
synthesis
of
performance
negative
electrodesremains
a
key
challenge.
In
this
study,
nanoporous
2
derived
from
shells
industrially
cultured
diatom
microalgae
is
successfully
used
as
template
synthesizing
via
magnesiothermic
reduction
reaction
(MgTR),
while
effectiveness
different
carbon
coating
(CC)
strategies
to
produce
diatom‐
glucose
precursor
thoroughly
analyzed.
Notably,
original
nanostructure
frustule
preserved
throughout
process,
and
it
demonstrated
that
increasing
heating
ramp
during
MgTR
enhances
Si
yield,
leading
significant
increase
specific
capacity
1064
mAh.g
−1
(2
°C/min
)
1846
(20
).
A
comparative
analysis
three
pathways
producing
composites:
1)
followed
by
CC,
2)
CC
MgTR,
3)
simultaneous
precursor,
revealed
pathway
(1)
most
effective
highcapacity
anodes.
These
findings
provide
enablers
developing
superior
electrochemical
performance.
