Advanced Engineering Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 30, 2024
Vanadium
oxides
are
widely
used
for
microsupercapacitors
(MSCs)
due
to
their
multiple‐valence
and
high
theoretical
capacitance.
A
conceptually
new
approach
of
electric
discharge
machining
(EDM)
with
computer‐aided
control
is
developed
one‐step
fabricate
Mo‐doped
VO
0.2
‐based
electrodes
devices
designable
geometry.
The
results
demonstrate
that
the
Mo@VO
integrated
interdigital
MSCs
(IIMSCs)
narrowest
electrode
distance
300
μm
show
best
capacitive
performance,
which
furtherly
manifested
by
field
simulation.
Moreover,
this
work
concentrates
on
expounding
relationships
between
EDM
current,
surface
morphology
,
behavior
IIMSCs.
Compared
current
2
3
A,
1
facilitates
synthesizing
smaller
particles
more
porosity
higher
area
thus
achieving
a
larger
capacitance
value
IIMSCs
device,
32
mF
cm
−2
at
mV
s
−1
working
well
up
an
ultrahigh
scan
rate
30
V
obtaining
good
cyclic
stability
88.61%
after
5000
cycles.
innovative
opens
avenue
synthesis
various
ceramic
metal
microdevices
such
as
microbatteries
microsensors.
