ACS Applied Energy Materials,
Год журнала:
2024,
Номер
7(22), С. 10230 - 10237
Опубликована: Ноя. 6, 2024
Aqueous
zinc–sulfur
batteries
(AZSBs)
are
emerging
as
high-energy-density
due
to
the
high
capacity
of
sulfur-based
cathodes.
However,
sulfur
suffers
from
poor
conductivity
and
sluggish
reaction
kinetics.
Therefore,
conductive
carbons
were
employed
additives
enhance
hosts
encapsulate
sulfur,
thereby
improving
kinetics
cycle
stability.
This
work
reveals
critical
role
carbon
in
crystallization
its
impact
on
AZSBs'
performance.
Amorphous
with
uniform
distribution
S@Ketjen
black
(S@KB),
unlike
crystallinity
aggregation
others,
results
best
electrochemical
performance,
demonstrating
higher
capacity,
enhanced
kinetics,
long-cycle
Journal of the American Chemical Society,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 3, 2025
Aqueous
zinc
batteries
are
the
ideal
choices
to
realize
intrinsically
safe
energy
storage,
but
parasitic
side
reactions
make
it
difficult
achieve
in
practice.
Although
cosolvent
electrolyte
effectively
inhibits
dendrites
and
mitigates
unexpected
reactions,
brings
inevitable
kinetics
losses.
Here,
we
systematically
investigate
compare
interactions
between
Zn2+
various
oxygen-coordinated
cosolvents
under
pure
aqueous
environments
OTf-
mixed
solvent
containing
different
cosolvents.
And
differences
effect
of
on
solvation
structure
ion
migration
quantitatively
analyzed
summarized.
On
this
basis,
propose
a
new
compensation
mechanism
strategy
that
can
compensate
losses
due
introduction
by
weakening
anion-cation
pair
interaction
increasing
transfer
number.
Theory
experiments
both
demonstrate
while
improving
electrochemical
performance.
This
work
provides
comprehensive
deep
understanding
designing
electrolytes
with
superior
More
importantly,
proposed
be
applied
other
similar
properties
battery
systems.
Advanced Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 10, 2024
Aqueous
zinc
batteries
(AZBs)
hold
great
potential
for
green
grid-scale
energy
storage
due
to
their
affordability,
resource
abundance,
safety,
and
environmental
friendliness.
However,
practical
deployment
is
hindered
by
challenges
related
the
electrode,
electrolyte,
interface.
Functional
hydrogels
offer
a
promising
solution
address
such
owing
broad
electrochemical
window,
tunable
structures,
pressure-responsive
mechanical
properties.
In
this
review,
key
properties
that
functional
must
possess
advancing
AZBs,
including
strength,
ionic
conductivity,
swelling
behavior,
degradability,
from
perspective
of
full
life
cycle
in
AZBs
are
summarized.
Current
modification
strategies
aimed
at
enhancing
these
improving
AZB
performance
also
explored.
The
design
considerations
integrating
with
electrodes
interface
discussed.
end,
limitations
future
directions
bridge
gap
between
academia
industries
successful
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 10, 2025
Rampant
dendrite
growth
and
severe
parasitic
reactions
at
the
electrode/electrolyte
interface
significantly
limit
cycle
life
of
aqueous
zinc
ion
hybrid
supercapacitors
(ZHSCs).
In
this
study,
sodium
lignosulfonate
(SLS)
as
one
green
polymer
was
introduced
into
ZnSO4
electrolyte
to
construct
a
multifunctional
layer
on
surface
Zn
plates.
Experimental
analyses
theoretical
calculations
show
that
presence
SLS
layer,
rich
in
oxygen-containing
functional
groups
(-SO3-),
can
not
only
modulate
structure
electric
double
(EDL)
suppress
interfacial
side
caused
by
free
H2O
SO42-,
but
also
promote
(101)-oriented
deposition
selectively
controlling
behavior
Zn2+
through
specific
adsorption
different
crystalline
surfaces.
The
optimized
allows
stable
Zn//Zn
symmetric
cells
achieve
cumulative
plating
capacity
exceeding
4
Ah
cm-2
high
areal
5
mAh
cm-2,
cycling
for
more
than
1000
cycles
with
an
excellent
average
Coulombic
efficiency
99.34%
Zn//Cu
asymmetric
cells.
Zn//AC
ZHSC
exhibits
ultralong
stability
over
40,000
electrolyte,
decay
rate
low
0.000285%
per
cycle.
Abstract
The
aqueous
zinc‐ion
batteries
(AZIBs)
are
emerging
as
highly
promising
electrochemical
energy
storage
solutions,
owing
to
their
advantages
in
safety
and
cost‐effectiveness.
However,
the
poor
reversibility
of
zinc
metal
anode
electrolytes
is
main
bottleneck
limiting
practical
application.
In
this
study,
an
easily
fabricated
mesoporous
ferroelectric
separator
designed
significantly
enhance
introduced.
fields
generated
by
induce
a
uniform
distribution
hydrated
ions
between
inner
Helmholtz
plane
(IHP)
on
surface
bulk
electrolyte,
which
turn
reduces
reactivity
parasitic
reactions,
such
hydrogen
evolution
hydroxide
formation.
Meanwhile,
reduction
reactivity,
coupled
with
increased
ion
diffusion
barrier,
benefits
planar
plating
minimal
dendrite
Experimental
evidence
demonstrates
that
anode,
equipped
separator,
achieves
high
standard
2
m
ZnSO
4
stable
stripping/plating
observed
over
4000
cycles
at
various
current
densities.
This
study
thus
presents
novel
for
AZIBs
effectively
mitigates
reactions
growth
regulating
IHP
structure,
offers
low‐cost
pathway
toward
actual
application
AZIBs.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 15, 2025
Abstract
The
unstable
zinc
anode
hinders
the
practical
application
of
aqueous
zinc‐ion
batteries,
primarily
due
to
two
interconnected
issues:
dendrite
formation
induced
by
kinetic‐controlled
plating
model
and
side
reactions
resulting
from
thermodynamic‐driven
hydrogen
evolution.
Herein,
a
multifunctional
interface,
composed
Cr‐doped
ZnO
(CZO)
nanoparticles
integrated
with
polyvinylidene
difluoride
(PVDF),
stabilizes
(CZO@Zn).
Introducing
ferroelectricity
into
CZO
through
Cr
doping
ensures
uniform
electric
field
distribution,
promoting
thermodynamic‐favored
epitaxial
growth.
zincophilicity
increases
nucleation
sites,
while
its
hydrophobicity
effectively
suppresses
reactions.
By
optimizing
both
thermodynamics
kinetics,
“concrete‐slab”‐like
deposition
is
achieved
even
under
high
areal
capacity
rate
conditions.
layer
enables
reversibility
(99.97%),
long‐term
stability
(2400
h),
utilization
(80%).
CZO‐modified
separator
exhibits
an
exceptionally
lifespan
2800
h.
This
approach
can
be
extended
design
V‐doped
interface.
ferroelectric–zincophilic
interlayer
offers
distinct
advantages
over
traditional
ferroelectric
materials
pure
ZnO,
making
it
promising
alternative
for
stabilizing
anode.
Journal of the American Chemical Society,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 9, 2025
Aqueous
zinc-ion
batteries
have
gained
significant
attention
due
to
their
high
safety
and
low
cost.
However,
the
cation
concentration
gradient
at
anode/electrolyte
interface
often
causes
serious
Zn
dendrites
side
reactions.
Herein,
cross-linked
ion
channels
were
constructed
on
anode
surface
by
antipolyelectrolyte
effect
of
zwitterionic
polymer
carboxymethyl
chitosan
(CMCHS)
molecules,
which
is
induced
transient
difference
initial
Zn2+
deposition
process.
The
CMCHS
endow
with
homogeneous
ions
electron
distributions.
Simultaneously,
molecules
enter
into
solvation
structures
H2O
are
removed,
limiting
activity
solvated
molecules.
Therefore,
dendrite
growth
water
significantly
suppressed,
resulting
in
excellent
electrochemical
performance
anodes.
An
average
Coulombic
efficiency
99.58%
achieved,
much
superior
case
conventional
ZnSO4
electrolyte.
To
illustrate
feasibility
CMCHS-contained
electrolyte,
Zn||V2O5
full
assembled
exhibited
enhanced
performance.
