The
exponential
growth
of
the
renewable
energies
field
and
increase
portable
electric
vehicles
demand
a
new
generation
multifunctional
efficient
electrochemical
energy
storage
devices
(EESDs).
In
this
work,
binder-free
hybrid
battery-like
electrodes
were
prepared
by
cathodic
electrophoretic
deposition
(EPD).
One
pot
(synthesis
deposition)
processing
β-Ni(OH)2
was
developed
ters,
avoiding
previous
calcination
step
to
form
NiO,
favoured
redox
reaction
(RR)
contribution
performance
without
influencing
mechanical
properties
CF
substrate.
Moreover,
sintering
coated-CF
under
high-vacuum
atmosphere
controlled
mass
(<0.1
mg.cm-2)
demonstrated
enhance
synergic
effect
reactions
(NiO)
double
layer
(CF)
contributions.
Thus,
in
half-cell
configuration
achieved
remarkably
high
capacitance
values
(1161
F.g-1
at
2
A.g-1),
while
symmetric
structural
solid-state
supercapacitor
(HSSS)
with
an
ionic
liquid/resin
solid-electrolyte
reached
9.8
mF.g-1,
power
density
3.5
mW.kg-1
1
mWh.kg-1
respectively
good
stability
coulombic
efficiency
75%
0.8
mA·g-1.
Polymer Composites,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 28, 2025
Abstract
One
potential
solution
to
the
problem
of
energy
storage
in
certain
transportation
vehicles
is
development
multifunctional
materials.
Specifically,
structural
supercapacitors
offer
a
combination
mechanical
strength
and
capabilities,
which
could
replace
vehicle
components
reduce
overall
weight.
However,
electrodes
made
from
carbon
fiber
face
significant
limitation
due
their
low
specific
surface
area.
This
study
examines
direct
synthesis
metal‐organic
frameworks
on
fibers.
Structures
such
as
ZIF‐8
ZIF‐L
can
be
easily
synthesized
same
precursors
exhibit
high
areas,
making
them
ideal
for
this
application.
Both
ZIF
structures
form
continuous
coating
fiber,
increasing
area
electrodes.
For
structure,
achieves
thickness
1
μm
30.24
m
2
/g.
In
contrast,
sheet‐like
geometry
results
greater
thicknesses,
though
with
lower
only
0.7
The
use
these
supercapacitor
devices
has
been
demonstrated
through
assembly
polymeric
solid
electrolyte.
achieved
capacitance
7.78
mF/g.
Despite
limitations
associated
internal
resistance,
all
have
shown
stability
over
charge
discharge
cycles.
Highlights
Continuous
layer
by
surfaces.
More
than
40
times
more
Solid‐state
show
mF/g
92%
efficiency.
Journal of Energy Storage,
Год журнала:
2024,
Номер
81, С. 110373 - 110373
Опубликована: Янв. 10, 2024
The
exponential
growth
of
the
renewable
energies
field
and
increase
portable
electric
vehicles
(EVs)
demand
a
new
generation
multifunctional
efficient
electrochemical
energy
storage
devices
(EESDs).
In
this
work,
binder-free
hybrid
battery-like
electrodes
were
prepared
by
cathodic
electrophoretic
deposition
(EPD).
One-step
(synthesis
deposition)
processing
β-Ni(OH)2
was
developed
avoiding
previous
calcination
step
to
form
NiO.
redox
reaction
(RR)
contribution
performance
enhanced
without
influencing
mechanical
properties
CF
substrate.
Moreover,
sintering
coated-CF
under
high-vacuum
atmosphere
controlled
mass
(<0.1
mg·cm−2)
demonstrated
enhance
synergic
effect
reactions,
ion
diffusion
(NiO)
double
layer
(CF)
contributions.
Thus,
in
half-cell
configuration
achieved
remarkably
high
capacitance
values
(1161
F·g−1
at
2
A·g−1),
while
symmetric
structural
solid-state
supercapacitor
(HSSS)
with
an
ionic
liquid/resin
solid-electrolyte
reached
9.8
mF·g−1,
power
density
3.5
mW·kg−1
1
mWh·kg−1
respectively
good
stability
Columbic
efficiency
75
%
0.8
mA·g−1.
Polymers,
Год журнала:
2024,
Номер
16(22), С. 3164 - 3164
Опубликована: Ноя. 13, 2024
Because
of
safety
concerns
associated
with
the
use
liquid
electrolytes
and
electrolyte
solutions,
options
for
non-liquid
materials
like
gels
polymers
to
be
used
as
ion-conducting
have
been
explored
intensely,
they
attract
steadily
growing
interest
from
researchers.
The
low
ionic
conductivity
most
hard
soft
solid
was
initially
too
practical
applications
in
supercapacitors,
which
require
internal
resistance
a
device
and,
consequently,
highly
conducting
materials.
Even
if
an
additional
separator
may
not
needed
when
already
ensures
reliable
separation
electrodes,
prepared
films
or
membranes
thin
practically
acceptable,
still
high
even
today.
Recent
developments
gel
sometimes
approach
surpass
terms
effective
conductance.
This
includes
based
on
biopolymers,
renewable
raw
materials,
biodegradability,
better
environmental
compatibility.
In
addition,
numerous
approaches
improving
electrolyte/electrode
interaction
yielded
improvements
resistance.
Reported
studies
are
reviewed,
material
combinations
sorted
out,
trends
identified.
Advanced Materials Technologies,
Год журнала:
2024,
Номер
9(22)
Опубликована: Июль 15, 2024
Abstract
Structural
supercapacitors
that
simultaneously
bear
mechanical
loads
and
store
electrical
energy
have
exciting
potential
for
enhancing
the
efficiency
of
various
mobile
systems.
However,
a
significant
hurdle
in
developing
practical
structural
is
inherent
trade‐off
between
their
properties
electrochemical
capabilities,
particularly
within
electrolytes.
This
study
demonstrates
tough
polymer
electrolyte
with
enhanced
multifunctionality
made
through
controlled
hydration
solid
poly(lactic
acid)
(PLA)
lithium
salts.
Characterization
via
differential
scanning
calorimetry,
X‐ray
diffraction,
Fourier
transform
infrared
spectroscopy
confirms
consistent
amorphous
solution
phase
varying
salt
concentrations,
whether
dried
or
hydrated.
Electrochemical
tests
tensile
are
performed
to
evaluate
ionic
conductivity
these
The
results
indicate
strategic
incorporation
water
significantly
enhances
while
preserving
its
properties.
A
specific
composition
demonstrated
remarkable
increase
(3.11
µS
cm
−1
)
coupled
superior
toughness
(15.4
MJ
m
−3
),
surpassing
base
polymer.
These
findings
open
new
horizons
integrating
functionality
into
polymers
without
compromising
Additionally,
paper
reports
successful
fabrication
testing
supercapacitor
prototypes
combining
carbon
fibers
fabricated
electrolytes,
showcasing
diverse
applications.
