Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 26, 2025
Abstract
Separators
are
critical
components
of
zinc‐metal
batteries
(ZMBs).
Despite
their
high
ionic
conductivity
and
excellent
electrolyte
retention,
the
widely
used
glass
fiber
(GF)
membranes
suffer
from
poor
mechanical
stability
cannot
suppress
dendrite
growth,
leading
to
rapid
battery
failure.
Contrarily,
polymer‐based
separators
offer
superior
strength
facilitate
more
homogeneous
zinc
(Zn)
deposition.
However,
they
typically
sluggish
ion
transport
kinetics
wettability
by
aqueous
electrolytes,
resulting
in
unsatisfactory
electrochemical
performance.
Here
a
dehydroxylation
strategy
is
proposed
overcome
above‐mentioned
limitations
for
polyvinyl
alcohol
(PVA)
separators.
A
dehydroxylated
PVA‐based
membrane
(DHPVA)
synthesized
at
relatively
low
temperature
highly
concentrated
alkaline
solution.
Part
hydroxyl
groups
removed
and,
as
result,
hydrogen
bonding
between
PVA
chains,
which
deemed
responsible
kinetics,
minimized.
At
20
°C,
DHPVA
reaches
12.5
mS
cm
−1
,
almost
4
times
higher
than
that
PVA.
Additionally,
effectively
promotes
uniform
Zn
deposition,
significantly
extended
cycle
life
reduced
polarization,
both
a/symmetric
(Cu/Zn
Zn/Zn)
full
cells
(Zn/NaV
3
O
8
).
This
study
provides
new,
effective,
yet
simple
approach
improve
performance
ZMBs.
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(17), P. 10137 - 10147
Published: Jan. 1, 2024
Interfacial
polymerization
of
3,4-ethylenedioxythiophene
(EDOT)
on
V
2
O
5
nanowires
generates
the
@PEDOT
core-sheath
structure,
which
enhances
conductivity,
suppresses
electrode
dissolution,
and
stabilizes
for
zinc
ion
storage.
Case Studies in Chemical and Environmental Engineering,
Journal Year:
2023,
Volume and Issue:
9, P. 100591 - 100591
Published: Dec. 23, 2023
in
this
paper,
two
novel
Composites
zinc
phosphate/Polyvinyl
alcohol
(ZnP-PVA)
and
Zinc
Phosphate/Polyvinyl
alcohol/Carboxymethyl
cellulose
(ZnP-PVA/CMC)
had
been
synthesized
by
a
low-temperature
one-step
ultrasonic-template
assisted
route.
For
characterization
of
samples,
Scanning
Electron
Microscopy
(SEM),
X-ray
diffraction
(XRD),
Transmission
(TEM),
Fourier-transform
infrared
spectroscopy
(FTIR),
Energy
Dispersive
X-Ray
Analysis
(EDAX),
MIC/MBC
EIS
were
used.
FTIR
spectra
the
composite
confirmed
functional
groups
present
PVA/CMC/Zn2+
ions
infraction
also
SEM
TEM
images
showed
composites
have
layered
structure
with
rectangular
microcrystals
(2.8
mm
width
ZnP-PVA
was
able
100%
to
completely
remove
bacteria
tested
sample.
As
results
show,
Anti-corrosion
efficiency
inhibitor
is
92.8%
at
2
h,
70.6%
4
68.0%
24
h
aslo
ZnP-PVA/CMC
67.7%
45.6%
50.5%
24h,
has
investigated.
