Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 25, 2025
Abstract
The
rational
design
of
abundant
and
efficient
active
sites
for
lithium‐sulfur
electrocatalysis
remains
a
long‐standing
challenge,
wherein
the
optimization
catalyst
activity
by
manipulating
their
sizes
has
stimulated
extensive
exploration.
Herein,
fine‐grain
strengthening
strategy
is
proposed
vanadium‐nitrogen‐carbon
(VNC)
comprising
vanadium
(V)‐based
units,
throughout
modulating
size
surface
energy
via
salt‐template
recrystallization.
recrystallization
frequency
dictated
to
precisely
tune
effect.
Through
rigorous
procedure
5‐time
recrystallization,
V‐based
units
realize
reduction
from
209
99
Å,
increase
0.16
0.32
eV
Å
−2
,
along
with
specific
area
adjustment
41.5
206.3
m
2
g
−1
.
Accordingly,
effect
effectively
activates
in
i)
enhancing
sulfur
species
adsorption
propelling
Li
S
nucleation/decomposition
reaction
kinetics;
ii)
guiding
high‐flux
uniform
lithium‐ions
thus
promoting
lithium
plating/stripping
behaviors.
Consequently,
battery
demonstrates
an
initial
discharge
capacity
1236.4
mA
h
at
0.2
C.
Even
after
600
cycles
2.0
C,
cycle‐to‐cycle
attenuation
merely
0.048%.
Furthermore,
pouch
cell
strengthened
VNC
can
proceed
stable
cycling
operation
1.0
ensuring
reliable
consistent
power
supply
electronic
gadgets.
Nano Letters,
Год журнала:
2024,
Номер
24(10), С. 3273 - 3281
Опубликована: Март 1, 2024
As
intelligent
technology
surges
forward,
wearable
electronics
have
emerged
as
versatile
tools
for
monitoring
health
and
sensing
our
surroundings.
Among
these
advancements,
porous
triboelectric
materials
garnered
significant
attention
their
lightness.
However,
face
the
challenge
of
improving
structural
stability
to
further
enhance
accuracy
sensors.
In
this
study,
a
lightweight
strong
cellulosic
material
is
designed
by
cell
wall
nanoengineering.
By
tailoring
structure,
shows
high
mechanical
strength
51.8
MPa.
The
self-powered
sensor
constructed
has
sensitivity
33.61
kPa–1,
fast
response
time
36
ms,
excellent
pressure
detection
durability.
Notably,
still
enables
performance
after
exposure
200
°C
achieves
real-time
feedback
human
motion,
thereby
demonstrating
great
potential
in
field
electronic
devices.
Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Март 11, 2025
The
recycling
of
spent
lithium-ion
batteries
can
effectively
mitigate
the
environmental
and
resource
challenges
arising
from
escalating
generation
battery
waste
soaring
demand
for
metals.
existing
mixing-then-separating
process
is
confronted
with
high
entropy-increasing
procedures,
including
crushing
leaching,
which
result
in
irreversible
entropy
production
due
to
decrease
material
orderliness
or
heavy
chemical
consumption,
thereby
hindering
its
thermodynamic
efficiency
economic
viability
entire
process.
Herein,
we
propose
a
galvanic
leaching
strategy
that
leverages
self-assembly
LiNi0.6Co0.2Mn0.2O2
particles
their
inherent
aluminium
foil
current
collectors
batteries,
creating
primary
cell
system
capable
recovering
metals
without
pre-crushing
additional
reductants.
Under
theoretical
potential
difference
up
3.84
V,
electrons
flow
charge
aggregation
achieve
valence
state
reduction,
crystal
phase
transition
coordination
environment
change
hard-to-dissolve
metal
components,
contributing
over
90%
recovery
nearly
30-fold
increase
kinetics.
Environmental-economic
assessments
further
indicate
this
reduces
energy
consumption
carbon
emissions
by
11.36%-21.10%
5.08%-23.18%,
respectively,
compared
conventional
metallurgical
methods,
while
enhancing
benefits
21.14%-49.18%.
methods
face
problems.
Here,
authors
recover
mixing
reductants,
Advanced Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Июль 20, 2024
Abstract
The
large
size
of
K
+
ions
(1.38
Å)
sets
a
challenge
in
achieving
high
kinetics
and
long
lifespan
potassium
storage
devices.
Here,
fibrous
ZrO
2
membrane
is
utilized
as
reactive
template
to
construct
dual‐carbon
K‐ion
capacitor.
Unlike
graphite,
‐catalyzed
graphitic
carbon
presents
relatively
disordered
layer
arrangement
with
an
expanded
interlayer
spacing
0.378
nm
accommodate
insertion/extraction.
Pyridine‐derived
nitrogen
sites
can
locally
store
K‐ions
without
disrupting
the
formation
stage‐1
graphite
intercalation
compounds
(GICs).
Consequently,
N‐doped
hollow
fiber
achieves
‐storage
capacity
(primarily
below
1
V),
which
1.5
time
that
commercial
graphite.
Potassium‐ion
hybrid
capacitors
are
assembled
using
electrodes
nanofiber
separator.
capacitor
exhibits
power
40
000
W
kg
−1
,
full
charge
8.5
s,
93%
retention
after
5000
cycles
at
A
g
low
self‐discharge
rate
8.6
mV
h
.
scalability
performance
lattice‐expanded
tubular
underscores
may
advance
practical
potassium‐ion
capacitors.
Abstract
Graphite
is
considered
to
be
the
most
auspicious
anode
candidate
for
potassium
ion
batteries.
However,
inferior
rate
performances
and
cycling
stability
restrict
its
practical
applications.
Few
studies
have
investigated
modulating
graphitization
degree
of
graphitic
materials.
Herein,
a
nitrogen‐doped
carbon‐coated
carbon
fiber
composite
with
tunable
(CNF@NC)
through
etching
growth,
in‐situ
oxidative
polymerization,
subsequent
carbonization
process
reported.
The
prepared
CNF@NC
abundant
electrochemical
active
sites
rapid
K
+
/electron
transfer
pathway,
can
effectively
shorten
distance
promote
insertion/removal
.
Amorphous
domains
short‐range
curved
graphite
layers
provide
ample
mitigation
spaces
storage,
alleviating
volume
expansion
highly
graphitized
CNF
during
repeated
insertion/de‐intercalation.
As
expected,
CNF@NC‐5
electrode
presents
high
initial
coulombic
efficiency
(ICE)
69.3%,
an
unprecedented
reversible
volumetric
capacity
510.2
mA
h
cm
−3
at
0.1
A
g
−1
after
100
cycles
mass‐capacity
294.9
storage
mechanism
reaction
kinetic
analysis
are
studied
by
combining
first‐principles
calculation.
It
manifests
that
in
adsorption‐insertion‐insertion
(i.e.,
“1+2”
model).
solid
electrolyte
interphase
(SEI)
film
forming
also
detected.
RSC Advances,
Год журнала:
2025,
Номер
15(4), С. 2582 - 2590
Опубликована: Янв. 1, 2025
Heteroatom-doped
hierarchical
porous
carbon
(AF-MMTC)
was
prepared
with
hard
template
and
salt
dual
templating
agents,
the
synergistically
construct
pore
structures
at
different
scales.
Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 26, 2025
Abstract
Sodium‐ion
batteries
are
applied
to
cold‐resistant
energy
storage
hindered
by
phase
transitions
and
sluggish
Na
+
migration
of
traditional
carbonate‐based
electrolytes
at
low
temperatures.
The
desolvation
is
a
crucial
step
in
impeding
the
transport
,
which
primarily
attributes
robust
solvent
coordination
.
Herein,
low‐temperature
adaptive
electrolyte
with
an
ultraweakly
coordinated
1,3‐dioxolane
(DOL)
designed
for
constructing
anion‐rich
solvation
structure
diglyme
(G2)‐based
electrolyte.
electronegativity
oxygen
atoms
G2
attenuated
dipole‐dipole
interaction
between
DOL
G2.
As
temperature
drops,
weakened
‒O
(G2)
leads
increased
anionic
less
coordination,
facilitating
This
anionic‐enhanced
contributes
formation
stable
solid
interface
hard
carbon
(HC)
anode,
accelerates
diminishing
voltage
polarization
Consequently,
HC
anode
can
retain
high
capacity
203.9
mAh
g
‒1
(1
C)
‒50
°C,
pouch
cell
composed
HC||Na
3
V
2
(PO
4
)
‒30
°C
achieves
retention
92.43%
after
100
cycles
0.1
C.
strategy
guides
design
ultra‐low
broadens
range
applications
sodium‐ion
batteries.