Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 24, 2024
Abstract
Zinc‐ion
batteries
possess
operation
safety,
high
energy
density,
production
flexibility
and
affordability,
making
them
attractive
for
scalable
storage.
While
Zn
anodes
face
significant
challenges
from
rampant
dendrite
growth
electrolyte‐related
side‐reactions
in
a
complex
interfacial
microenvironment.
The
growing
resistance
further
degrades
the
battery
performance.
An
integrated
anode
design
is
reported
to
regulate
simultaneously
2+
flux
through
situ
confinement
of
sieve,
that
is,
2D
CuBDC
metal–organic
framework
mesoporous
carbonaceous
host.
with
sub‐nanometer
channels
selected
efficient
dehydration
directional
transport,
lowering
nucleation
barrier
by
zincophilic
Cu(II)
N
sites.
Conductive
meso‐carbon
reduces
blocks
side‐reactions.
Resultantly,
modified
demonstrate
improved
cycling
stability
lower
voltage
polarization,
supported
operando
optical
microscopy
ex
analysis.
This
work
provides
feasible
strategy
improving
aqueous
new
insights
on
designing
advancing
zinc
batteries.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 2, 2025
Abstract
MnO
2
‐based
cathode
aqueous
rechargeable
zinc‐ion
batteries
(ZIBs)
have
favorable
sustainability
characteristics
and
are
considered
potential
candidates
for
low‐cost
effective,
high‐safety
energy
storage
systems.
Nevertheless,
the
development
of
them
has
been
hampered
by
unstable
electrode
structures
ambiguous
charge
mechanisms.
Herein,
role
doping
Fe
3+
Co
2+
into
δ‐MnO
materials
(FMO,
CMO)
is
comprehensively
probed
working
mechanism
Zn//FMO,
Zn//CMO
studied
using
in
situ
ex
characterization,
electrochemical
analysis,
theoretical
calculations.
Metal
cations
can
partially
replace
Mn
to
form
M─O
bonds
enhance
structural
stability
as
well
redox
activity
.
It
found
that
effectively
modulates
interaction
between
Zn
/H
+
structure
inhibits
formation
ZnMn
O
4
(ZMO)
by‐products
confers
fast
diffusion
ability
The
reactions
FMO
CMO
mainly
via
H
/Zn
intercalation/deintercalation
accompanied
OTF‐base‐like
double
hydroxide
x
(OTF)
y
(OH)
2x‐y
‐nH
(Z‐LDH)
deposition/dissolution.
This
research
enriches
fundamental
comprehension
ZIBs
reveals
way
modify
electrodes
performance
enhancement.
Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 25, 2025
Abstract
Zinc−air
batteries
(ZABs)
are
considered
as
a
promising
option
for
energy
storage
systems
and
the
consumer
electronic
market.
The
sluggish
kinetics
of
oxygen
reduction/evolution
reactions
at
cathodes
result
in
issues
such
low
power
density
unsatisfactory
cyclic
life.
Herein,
superiorly
simple
strategy
hydrophobicity
engineering
is
used
to
regulate
rich
micro‐three‐phase
interfaces
(MTPI)
cathode
by
adopting
hydrophobic
ionic
liquid
coated
on
N‐doped
hollow
carbon
spheres.
According
results
ab
initial
molecular
dynamics
simulation
finite
element
method,
spatial
distance
between
catalysts
electrolytes
can
be
effectively
expanded
generated
micro‐environment,
which
beneficial
creating
cavities
boundaries
three‐phase
electrochemical
reaction,
further
improving
concentration
around
catalytic
active
sites
sufficient
utilization
sites.
Accordingly,
as‐assembled
ZABs
exhibit
an
excellent
rate
performance
0.94
V
(@
150
mA
cm
−2
),
lower
galvanostatic
charge–discharge
voltage
gap
0.77
(2
)
with
extremely
long
stability
over
1000
h,
maximum
193
mW
.
obtained
provide
designing
high‐performance
promoting
its
industrial
application.
Abstract
Aqueous
zinc‐ion
batteries
have
emerged
as
promising
candidates
for
large‐scale
energy
storage,
but
their
cycle
stability
is
limited
by
irreversible
zinc
anodes
due
to
dendrite
growth
and
undesired
side
reactions.
Here,
an
artificial
composite
protective
layer
consisting
of
a
Zn
metal–organic
framework
(MOF)
infiltrated
with
hydrophobic
ionic
liquid
1‐ethyl‐3‐methylimidazoline
bis(trifluoromethyl
sulfonyl)
imide
constructed
on
anodes.
The
unique
porous
structure
the
MOF
enables
uniform
electric
field
distribution,
effectively
inducing
plating
stripping.
Meanwhile,
small
amount
can
isolate
direct
contact
between
anode
aqueous
electrolyte,
thereby
inhibiting
reactions
including
hydrogen
evolution
reaction.
In
addition,
cations
in
act
shielding
suppress
tip
effect.
Consequently,
metal
greatly
improved.
assembled
symmetric
cell
able
stably
over
2600
h
at
0.2
mA
cm
−2
/0.2
mAh
800
1
/1
,
which
also
exhibits
lower
more
stable
overpotentials.
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 12, 2025
Flexible
aqueous
zinc-ion
batteries
(AZIBs)
are
considered
one
of
the
most
attractive
flexible
devices
owing
to
their
high
theoretical
capacity,
low
cost,
and
security.
However,
formation
Zn
dendrites
poor
flexibility
material
greatly
impede
application
wearable
AZIBs.
Herein,
by
transferring
graphene
onto
surface
polyethylene
terephthalate-indium
tin
oxide
(PET-ITO-G),
a
substrate
combining
excellent
dendrite
suppression
ability
was
prepared.
Meanwhile,
quantitative
in
situ
strain
system
proposed
investigate
electrochemical
morphological
characteristics
anode
interface.
The
plating/stripping
performance
Zn|PET-ITO-G
device
demonstrated
under
various
strains.
Subsequent
analysis
indicated
that
origin
its
stability
static
bending
came
from
densely
packed
(101)
upon
cycling.
In
addition,
PET-ITO-G
could
quickly
recover
(002)
after
relieved.
A
failure
model
strain-modulated
deposition
based
on
cracks
distorted
current
distribution.
This
work
identified
main
factors
constrained
long
cycling
life
metal
provided
feasible
approach
for
systematic
study
influence
batteries.
Journal of Materials Chemistry A,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
An
optimized
1.0
M
Zn–eutectic
SPE
offers
high
ionic
conductivity,
mechanical
strength,
and
stability.
The
Zn|SPE|V
10
O
24
·
n
H
2
O@rGO
cell
delivers
excellent
performance
durability,
ensuring
stable
operation
over
a
wide
temperature
range.
Dendrite
growth,
corrosion,
and
hydrogen
evolution
are
major
issues
for
Zn
anodes,
which
seriously
hinder
the
further
practical
application
of
aqueous
zinc-ion
batteries.
To
address
these
issues,
Zirconium
Nitride
(ZrN)
layer
with
a
thickness
110
nm
is
uniformly
deposited
on
surface
anode
using
plasma-enhanced
atomic
deposition
(PE-ALD).
In/ex
situ
characterizations
verify
that
as-introduced
ZrN
has
excellent
anticorrosive
zincophilic
ability,
can
suppress
corrosion
evolution,
lower
nucleation
energy
barrier
Zn2+
deposition,
effectively
inhibit
dendrite
growth.
Theoretical
calculations
also
reveal
exhibits
significantly
higher
adsorption
capacity
compared
to
bare
Zn,
conducive
regulating
behavior.
This
innovative
interface
extends
battery
cycle
life
enhances
coulombic
efficiency.
Encouragingly,
under
current
density
5
mA
cm-2
areal
1
mAh
cm-2,
Zn@ZrN
symmetrical
cells
demonstrate
an
extraordinary
cycling
up
5000
h,
surpassing
other
reported
anodes
modified
by
films/coatings.
In
addition,
it
impressive
1200
h
at
cm-2.
The
full
Zn@ZrN||MnO2
retain
high
after
1000
cycles,
markedly
outperforming
conventional
Zn||MnO2
