Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 26, 2025
Abstract
Plant‐based
hard
carbon
is
a
highly
promising
anode
material
for
sodium‐ion
batteries.
Numerous
studies
have
dedicated
significant
effort
to
the
selection
of
precursors;
however,
there
has
been
limited
comprehensive
research
on
low‐rate
performance
plant‐based
carbon.
Indeed,
aggregated
structure
cellulose
and
hemicellulose
in
precursors
underestimated
regarding
its
influence
properties.
In
this
study,
inherent
kapok
fiber
optimized.
It
observed
that
aggregation
precursor
significantly
influences
content
disordered
post‐carbonization,
consequently
impacting
rate
derived
material.
To
address
problems,
aluminum
ions
innovatively
are
used
support
crushed
cellulose‐hemicellulose
arrays,
prepared
capacity
retention
up
to≈70%
at
current
density
increased
from
0.05
3.2
A
g
−1
.
This
not
only
clarifies
mechanism
by
which
leads
decline
but
also
introduces
ion
coupling
method
repair
structure,
thereby
achieving
optimization
performance.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 8, 2025
Abstract
Pitch
is
a
highly
preferable
and
cost‐effective
precursor
of
carbon
materials.
Nevertheless,
its
direct
pyrolysis
typically
yields
graphitized
soft
carbon,
posing
challenges
to
the
modulation
closed‐pore
architecture,
due
intense
intermolecular
π–π
interactions.
This
results
in
negligible
plateau
capacity
sluggish
diffusion
kinetics
sodium‐ion
batteries
(SIBs).
In
this
study,
an
innovative
hyper‐crosslinking
strategy
proposed
reconstruct
pitch
molecularly
precisely
tailor
structure
derived
carbon.
The
crosslinker
intertwined
units,
transforming
linear
molecules
into
3D
porous
polymers.
Structurally,
these
cavities
tactfully
reserved
space
for
forming
cores,
with
single‐layer
network
skeleton
ultrathin
pore
walls
upon
carbonization.
enabled
disruption
interactions
and,
therefore,
inhibited
structural
ordering,
facilitating
transition
from
graphitic
highly‐disordered
abundant
closed
pores
featuring
appropriate
sizes
(2
nm)
(1–2
layers).
optimal
sample
delivered
high
370
mAh
g
−1
at
30
mA
,
as
well
rate
capability
that
surpassed
those
most
previously
reported
pitch‐derived
carbons.
Hyper‐crosslinking
has
advanced
development
low‐cost
high‐performance
materials
large‐scale
energy
storage.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 30, 2024
Abstract
The
closed‐pore
structure
of
hard
carbons
holds
the
key
to
high
plateau
capacity
and
rapid
diffusion
kinetics
when
applied
as
sodium‐ion
battery
(SIB)
anodes.
However,
understanding
establishing
structure‐electrochemistry
relationship
still
remains
a
significant
challenge.
This
work,
for
first
time,
introduces
an
innovative
deep
eutectic
solvent
(DES)
cell‐shearing
strategy
precisely
tailor
cell
natural
bamboo
consequently
in
its
derived
carbons.
DES
shearing
force
effectively
modifies
pore
architecture
by
simultaneously
dissolving
amorphous
components
form
closed
cores
with
adjustable
sizes,
well
disintegrating
crystalline
cellulose
through
generation
competing
hydrogen
bonds
elaborately
tune
wall
thickness
ordering.
optimized
featuring
appropriate
size
(∼2
nm)
ultra‐thin
(1–3
layers)
disordered
walls,
exhibits
abundant
active
sites
delivers
ion
reaction
reversibility.
Consequently,
reversible
422
mAh
g
−1
at
30
mA
along
exceptional
rate
capability
(318.6
6
A
)
are
achieved,
outperforming
almost
all
previous
reported
new
concept
chemistry
regeneration
significantly
advances
applications
biomass
materials
energy
storage.
Advanced Energy Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 28, 2025
Abstract
Non‐graphitic
carbons
are
considered
as
promising
anode
candidates
for
sodium‐ion
batteries
(SIBs).
Regulation
of
microcrystalline
state
and
pore
configuration
carbon
is
key
to
boost
sodium
plateau
storage.
Herein,
a
facile
strategy
developed
create
abundant
closed
nanopores
extensive
pseudo‐graphitic
regions
in
framework
by
the
spatially
confined
carbonization
coal
tar
within
commercial
activated
(AC).
The
interlayer
spacing,
size,
nanopore
structures
obtained
materials
can
be
facilely
adjusted
changing
amount
temperature.
As
expected,
optimized
sample
delivers
an
excellent
storage
capacity
361.7
mAh
g
−1
at
0.1C
with
high
ICE
value
81.6%.
constructed
full
cell
displays
energy
density
254.3
Wh
kg
average
voltage
3.19
V.
detailed
experimental
studies
in/ex
situ
electrochemical
tests
reveal
that
enhanced
related
development
phase
nanopores.
In
addition,
mass
loading
electrode
(≈11
mg
cm
−2
)
10‐layered
pouch
demonstrate
performance.
This
work
provides
practical
collaboratively
designing
high‐performance
SIBs.
Nano Letters,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 25, 2025
Molybdenum
disulfide
(MoS2)
is
a
promising
anode
for
sodium-ion
batteries
(SIBs)
due
to
its
high
theoretical
capacity
and
layered
structure.
However,
poor
reversible
conversion
reaction
low
initial
Coulombic
efficiency
(ICE)
limit
practical
application.
This
study
systematically
investigated
the
potential
of
pre-intercalated
sodium
ions
molybdenum
(Na-MoS2)
as
an
material
SIBs.
Because
mitigation
MoS2
structural
dissociation
effective
replenishment
active
ions,
Na-MoS2
delivered
outstanding
507.7
mAh
g-1
after
2000
cycles
at
5
A
g-1,
along
with
ICE
95.30%.
Pre-intercalating
can
expand
interlayer
spacing
modulate
electronic
structure,
allowing
have
greater
tolerance
electrochemical
intercalation/extraction
process.
Furthermore,
has
higher
Gibbs
free
energy,
implying
thermodynamically
unfavorable.
work
provides
new
perspective
on
transition
metal
dichalcogenide
electrode
materials
