ACS Applied Polymer Materials,
Journal Year:
2024,
Volume and Issue:
6(21), P. 13319 - 13328
Published: Oct. 25, 2024
The
separators
of
supercapacitors
suffer
from
drawbacks
such
as
poor
mechanical
properties,
limited
ion
transport,
and
low
thermal
stability,
which
have
impeded
the
advancement
supercapacitors.
In
this
study,
high-performance
paper-based
are
developed
using
aramid
raw
material
through
a
wet
papermaking
process.
demonstrate
exceptional
comprehensive
performance,
including
good
strength
(11.57
MPa),
remarkable
porosity
(81.9%),
outstanding
stability
(exceeding
300
°C).
Evaluation
with
(AS
separators)
reveals
that
decreases,
specific
capacitance
supercapacitor
exhibits
declining
trend
under
same
scan
rate
or
current
density.
Notably,
grammage
9
g
m–2
AS
separator
achieves
up
to
26.79
F
g–1,
surpassing
commercial
identical
conditions
(26.41
g–1).
After
1500
cycles
at
density
1
A
retention
remains
above
90%,
comparable
separator.
These
findings
underscore
highly
promising
nature
for
prepared
in
offering
performance
safety.
ACS Omega,
Journal Year:
2024,
Volume and Issue:
9(31), P. 33998 - 34007
Published: July 23, 2024
In
this
study,
we
examine
the
electrochemical
performance
of
supercapacitor
(SC)
electrodes
made
from
3D-printed
nanocomposites.
These
composites
consist
multiwalled
carbon
nanotubes
(MWCNTs)
and
polyether
ether
ketone
(PEEK),
coated
with
poly(3,4-ethylenedioxythiophene)
polystyrene
sulfonate
(PEDOT:PSS).
The
a
PEEK/MWCNT
solid
electrode
surface
area
density
1.2
mm–1
is
compared
to
two
distinct
periodically
porous
densities
7.3
7.1
mm–1.
To
enhance
SC
performance,
are
conductive
polymer,
PEDOT:PSS.
architected
cellular
exhibit
significantly
improved
capacitive
properties,
(7.1
mm–1)
displaying
capacitance
nearly
four
times
greater
than
that
electrode-based
SCs.
Moreover,
PEDOT:PSS-coated
demonstrates
high
specific
12.55
mF·cm–3
at
50
mV·s–1,
contrasting
SCs
based
on
(4.09
mV·s–1)
without
coating.
PEDOT:PSS
coating
proves
effective
in
reducing
resistance,
resulting
decreased
voltage
drop
during
SCs'
charging
discharging
processes.
Ultimately,
nanocomposite
polymer
achieves
an
energy
1.98
μW
h·cm–3
current
70
μA.
This
study
underscores
how
combined
effect
enabled
by
3D
printing,
along
conductivity
imparted
coating,
synergistically
improves
storage
performance.
Batteries & Supercaps,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 6, 2024
Abstract
Carbon
paper
is
widely
utilized
in
supercapacitors
primarily
for
its
notable
attributes,
including
high
specific
surface
area,
commendable
electrical
conductivity,
and
excellent
chemical
stability.
Then
investigate
the
effect
of
carbon
with
different
porosities
as
supercapacitor
substrates
on
electrochemical
performance
electrodes.
Meanwhile,
tungsten
oxide
grown
using
hydrothermal
method
to
test
composite
electrode.
The
prepared
oxygen‐deficient
(WOx)
electrode
(CP@WOx)
exhibit
an
area‐specific
capacitance
915.8
mF/cm
2
at
a
current
density
5
mA/cm
.
In
addition,
exhibits
good
cycling
After
20,000
cycles,
remains
104.1
%
original
capacity
50
density.
Solid‐state
symmetric
assembled
CP@WOx
terms
energy
6.25
μWh/cm
(at
power
0.6
mW/cm
)
maintain
100.4
their
after
7000
charge/discharge
cycles.
Relying
higher
productivity
advantage
centrifugal
spinning
technology
over
electrostatic
other
preparation
processes,
this
study
develops
new
way
thinking
large‐scale
production
materials,
which
has
more
considerable
potential
development.
Macromolecular Materials and Engineering,
Journal Year:
2024,
Volume and Issue:
310(1)
Published: Nov. 30, 2024
Abstract
Recently,
research
all
over
the
world
is
being
carried
out
to
develop
eco‐friendly
supercapacitors
(SCs)
using
biopolymeric
materials
like
proteins
or
polysaccharides.
These
polymers
offer
these
innovative
energy
storage
devices'
sustainability
and
recyclability,
flexibility,
lightweight,
steady
cycling
performance—all
crucial
for
utilizations
involving
wearable
electronics
others.
Given
its
abundance
extensive
recycling
behavior,
cellulose
one
of
most
sustainable
natural
requiring
special
attention.
The
paper
discusses
various
types
cellulose‐based
(CBMs),
including
nanocellulose,
derivatives,
composites,
as
well
their
synthesis
methods
electrochemical
properties.
review
also
highlights
performance
CBMs
in
SC
applications,
capacitance,
stability,
rate
capability,
along
with
recent
advances
modifying
materials,
such
surface
modification
hybrid
materials.
Finally,
proposed
topic
concluded
current
challenges
future
prospects
applications.
