A review of advanced electrolytes for supercapacitors
Journal of Energy Storage,
Год журнала:
2024,
Номер
103, С. 114338 - 114338
Опубликована: Ноя. 1, 2024
Язык: Английский
Recent Advances and Challenges in Hybrid Supercapacitors Based on Metal Oxides and Carbons
Inorganics,
Год журнала:
2025,
Номер
13(2), С. 49 - 49
Опубликована: Фев. 8, 2025
Hybrid
supercapacitors
(HSCs)
are
a
novel
type
of
supercapacitor
composed
battery-type
electrodes
and
capacitor-type
electrodes,
which
have
directly
transformed
the
global
energy
landscape.
On
one
hand,
they
can
replace
clean
sources
that
heavily
dependent
on
climatic
conditions
in
specific
regions,
thereby
enhancing
effective
utilization
intermittent
sources.
other
with
their
high
density
akin
to
secondary
batteries
long
lifespan
power
characteristic
supercapacitors,
perfectly
bridge
gap
between
supercapacitors.
This
article
reviews
fundamental
storage
principles
HSCs
highlights
latest
optimization
strategies
for
based
transition
metal
oxides
(TMOs)
carbon
over
past
two
years.
These
include
heteroatom
doping,
heterostructured
materials,
nanocomposites,
metal–organic
frameworks
(MOF).
Finally,
prospects
future
research
directions
discussed.
Язык: Английский
Designing coin-cell supercapacitors: Combining graphene foam with metal oxide composite electrodes for improved energy storage performance
FlatChem,
Год журнала:
2025,
Номер
50, С. 100829 - 100829
Опубликована: Янв. 31, 2025
Язык: Английский
Enhanced Electrochemical Performance of Aqueous Zinc‐Ion Batteries With Porous Basil‐Derived Carbon and Nanostructured MnO2 Composite Cathodes
Battery energy,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 16, 2025
ABSTRACT
This
study
introduces
a
novel
composite
cathode
for
aqueous
zinc‐ion
batteries
(ZIBs),
leveraging
porous
basil‐derived
activated
carbon
(BAC)
and
nanostructured
manganese
dioxide
(MnO
2
)
synthesized
through
one‐step
hydrothermal
process.
For
the
first
time,
is
integrated
with
MnO
,
resulting
in
enhanced
electrochemical
performance.
The
/BAC
delivers
remarkable
specific
capacity
of
237
mAh/g
at
0.5
A/g,
along
an
energy
density
314
Wh/kg
power
0.66
kW/kg,
outperforming
cathodes
made
from
pristine
or
BAC.
These
improvements
stem
reduced
particle
size
synergistic
balance
capacitive
diffusive
charge
storage
mechanisms.
Density
functional
theory
calculations
corroborate
experimental
results,
revealing
composite's
superior
quantum
(158.7
µC/cm
capacitance
(80.4
µF/cm
).
Stability
assessments
highlight
excellent
cycle
life,
>
90%
retention
100%
Coulombic
efficiency
over
300
cycles.
exceptional
performance
attributed
to
material's
unique
nanostructure,
high
surface
area
(1090
m
/g),
optimized
porosity.
Additionally,
practical
applications
ZIBs
pouch
cell
form
using
MnO₂/BAC
are
demonstrated,
showcasing
its
capability
toy
car
satisfactory
distance.
establishes
new
benchmark
sustainable
cost‐effective
materials,
significantly
advancing
ZIB
technology
high‐efficiency
applications.
Язык: Английский