Batteries & Supercaps,
Journal Year:
2023,
Volume and Issue:
6(4)
Published: March 1, 2023
Abstract
Economical
efficient
anode
materials
play
an
important
role
in
low‐temperature
sodium‐ion
batteries
(SIBs).
Tunnel‐type
structured
Na
2
Ti
6
O
13
@C
nanowires
were
synthesized
and
utilized
as
material
for
SIBs.
The
appropriate
interlayer
spacing
sodium
ion
insertion
short
diffusion
pathway
can
accelerate
the
kinetics
decrease
apparent
activation
energy
at
low
temperature.
calculated
to
be
42.0
kJ
mol
−1
15.3
with
coefficients
about
10
−12
cm
s
.
exhibit
a
high
reversible
capacity
of
100
mAh
g
0
°C
99.6
%
retention
after
200
cycles
0.5
C.
Coupling
vanadium
phosphate
cathode,
assembled
@C||NVP
full‐cell
keep
65
175
°C.
This
work
presents
that
ideal
type
active
Small,
Journal Year:
2023,
Volume and Issue:
19(31)
Published: Jan. 17, 2023
Aqueous
zinc-ion
batteries
(ZIBs)
using
the
Zn
metal
anode
have
been
considered
as
one
of
next-generation
commercial
with
high
security,
robust
capacity,
and
low
price.
However,
parasitic
reactions,
notorious
dendrites
limited
lifespan
still
hamper
their
practical
applications.
Herein,
an
eco-friendly
nitrogen-doped
sulfonated
carbon
dots
(NSCDs)
is
designed
a
multifunctional
additive
for
cheap
aqueous
ZnSO4
electrolyte,
which
can
overcome
above
difficulties
effectively.
The
abundant
polar
groups
(-COOH,
-OH,
-NH2
,
-SO3
H)
on
CDs
surfaces
regulate
solvation
structure
Zn2+
through
decreasing
coordinated
active
H2
O
molecules,
thus
redistribute
deposition
to
avoid
side
reactions.
Some
negatively
charged
NSCDs
are
adsorbed
surface
isolate
O/SO42-
corrosion
electrostatic
shielding
effect.
synergistic
effect
doped
nitrogen
species
sulfonic
induce
uniform
electrolyte
flux
homogeneous
plating
(002)
texture.
As
result,
excellent
cycle
life
(4000
h)
Coulombic
efficiency
(99.5%)
optimized
ZIBs
realized
in
typical
electrolytes
only
0.1
mg
mL-1
additive.
Molecules,
Journal Year:
2023,
Volume and Issue:
28(7), P. 3134 - 3134
Published: March 31, 2023
When
compared
to
expensive
lithium
metal,
the
metal
sodium
resources
on
Earth
are
abundant
and
evenly
distributed.
Therefore,
low-cost
sodium-ion
batteries
expected
replace
lithium-ion
become
most
likely
energy
storage
system
for
large-scale
applications.
Among
many
anode
materials
batteries,
hard
carbon
has
obvious
advantages
great
commercial
potential.
In
this
review,
adsorption
behavior
of
ions
at
active
sites
surface
carbon,
process
entering
graphite
lamellar,
their
sequence
in
discharge
analyzed.
The
controversial
mechanism
is
discussed,
four
mechanisms
summarized.
Not
only
(in
carbon)
analyzed
depth,
but
also
relationships
between
morphology
structure
regulation
heteroatom
doping
electrolyte
optimization
further
as
well
electrochemical
performance
anodes
batteries.
It
that
with
will
have
excellent
performance,
lower
costs
be
required
systems.
Macromolecular Rapid Communications,
Journal Year:
2023,
Volume and Issue:
45(4)
Published: Nov. 6, 2023
Abstract
Flexible
dielectrics
with
large
dielectric
constant
(
ε
′)
coupled
low
loss
are
highly
pursued
in
many
applications.
To
bolster
the
′
of
raw
Zn
(zinc)/poly(vinylidene
fluoride,
PVDF)
while
maintaining
pimping
loss,
this
study,
core@double–shell
structured
Zn@zinc
carbonate
(ZnCH)@polystyrene
(PS)
particles
first
synthesized
through
a
suspension
polymerization
styrene,
and
then
composited
PVDF
to
elevate
keep
composites.
By
optimizing
PS
shells’
thickness
tailoring
electrical
resistivity
Zn@ZnCH@PS
particles,
both
slow
inter‐particle
polarization
fast
intra‐particle
composites
can
be
decoupled
synergistically
tuned,
thus,
Zn@ZnCH@PS/PVDF
achieves
much
higher
lower
simultaneously,
which
far
exceed
unmodified
Zn/PVDF.
Both
experiment
theoretic
calculation
reveal
that
double‐shell
ZnCH@PS
not
only
induces
promotes
multiple
polarizations
enhancing
composites’
′,
especially
at
optimized
PS's
thickness,
but
also
maintains
suppressed
conductivity
thanks
their
obvious
barrier
effect
on
long‐range
charge
migration.
The
filler
design
strategy
facilitates
development
polymer
desirable
properties
for
applications
electronic
power
systems.
Journal of Applied Polymer Science,
Journal Year:
2023,
Volume and Issue:
140(17)
Published: Feb. 24, 2023
Abstract
Polymeric
dielectrics
with
high
dielectric
permittivity
(
ɛ
′)
and
low
loss
have
momentous
applications
in
energy
storage
devices.
In
this
study,
to
concurrently
improve
the
′
restrain
of
original
Zn
(Zinc)/poly(vinylidene
fluoride,
PVDF),
core@double‐shell
structured
Zn@ZnO(zinc
oxide)@PS(polystyrene)
particles
were
prepared
composited
PVDF.
The
impacts
dual
shells
on
properties
polarization
mechanism
composites
explored
by
fitting
experimental
data
a
Havriliak–Negami
(H–N)
equation.
Zn@ZnO@PS/PVDF
exhibit
remarkably
higher
comparison
raw
Zn@ZnO
fillers
owing
induced
multiple
polarizations
originating
from
combined
contributions
α
relaxation
PVDF,
slow
interparticle
fast
intraparticle
polarization.
More
importantly,
increases
PS
shell’
thickness,
while
is
still
kept
at
rather
levels
barrier
effect
long‐range
charges
migration.
So,
introduction
shell
synchronously
promotes
both
toward
enhanced
properties.
developed
strategy
opens
novel
path
design
fabrication
polymer
desirable
performances
for
electronics
electrical
industry.
Nanomaterials,
Journal Year:
2023,
Volume and Issue:
13(11), P. 1744 - 1744
Published: May 26, 2023
Porous
carbon
materials
have
demonstrated
exceptional
performance
in
various
energy
and
environment-related
applications.
Recently,
research
on
supercapacitors
has
been
steadily
increasing,
porous
emerged
as
the
most
significant
electrode
material
for
supercapacitors.
Nonetheless,
high
cost
potential
environmental
pollution
associated
with
preparation
process
of
remain
issues.
This
paper
presents
an
overview
common
methods
preparing
materials,
including
carbon-activation
method,
hard-templating
soft-templating
sacrificial-templating
self-templating
method.
Additionally,
we
also
review
several
emerging
such
copolymer
pyrolysis,
carbohydrate
self-activation,
laser
scribing.
We
then
categorise
carbons
based
their
pore
sizes
presence
or
absence
heteroatom
doping.
Finally,
provide
recent
applications
electrodes
