Batteries,
Journal Year:
2024,
Volume and Issue:
10(12), P. 438 - 438
Published: Dec. 10, 2024
Supercapacitors
are
a
kind
of
energy
storage
device
that
lie
between
traditional
capacitors
and
batteries,
characterized
by
high
power
density,
long
cycle
life,
rapid
charging
discharging
capabilities.
The
mechanism
supercapacitors
mainly
includes
electrical
double-layer
capacitance
pseudocapacitance.
In
addition
to
constructing
multi-level
pore
structures
increase
the
specific
surface
area
electrode
materials,
defect
engineering
is
essential
for
enhancing
electrochemical
active
sites
achieving
additional
extrinsic
Therefore,
developing
simple
efficient
method
essential.
Atomic
layer
deposition
(ALD)
technology
enables
precise
control
over
thin
film
thickness
at
atomic
level
through
layer-by-layer
deposition.
This
capability
allows
intentional
introduction
defects,
such
as
vacancies,
heteroatom
doping,
or
misalignment,
within
material.
ALD
process
can
regulate
defects
in
materials
without
altering
overall
structure,
thereby
optimizing
both
physical
properties
materials.
Its
self-limiting
reaction
also
ensures
doping
introduced
uniformly
across
material
surface.
uniform
distribution
particularly
profitable
electrodes
supercapacitor
applications,
it
promotes
consistent
performance
entire
electrode.
review
systematically
summarizes
latest
advancements
via
supercapacitors,
including
enhancement
conductivity
ALD,
improving
density
device.
Furthermore,
we
discuss
underlying
mechanisms,
advantages,
future
directions
this
field.
