ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(26), С. 33559 - 33570
Опубликована: Июнь 24, 2024
Aqueous
zinc
(Zn)
ion
batteries
have
received
broad
attention
recently.
However,
their
practical
application
is
limited
by
severe
Zn
dendrite
growth
and
the
hydrogen
evolution
reaction.
In
this
study,
three
alkali
metal
ions
(Li+,
Na+,
K+)
are
added
in
ZnSO4
electrolytes,
which
subjected
to
electrochemical
measurements
molecular
dynamics
simulations.
The
studies
show
that
since
K+
has
highest
mobility
self-diffusion
coefficient
among
four
K+,
Zn2+),
it
enables
preferentially
approach
a
at
an
earlier
time,
driven
negative
electric
field
during
cathodic
process.
double
layer,
with
around
negatively
charged
dendrite,
inhibits
mitigates
reaction
on
anode.
Under
kinetic
effect,
Zn-Zn
symmetric
cell
exhibits
long
cycling
stability
of
1000
h
1
mA·cm-2
mAh·cm-2
190
30
2
mAh·cm-2.
Such
effect
also
observed
additives
Na+
Li+,
though
less
profound
than
K+.
ACS Nano,
Год журнала:
2024,
Номер
18(15), С. 10642 - 10652
Опубликована: Апрель 1, 2024
Considerable
attention
has
been
by
far
paid
to
stabilizing
metallic
Zn
anodes,
where
side
reactions
and
dendrite
formation
still
remain
detrimental
their
practical
advancement.
Electrolyte
modification
or
protected
layer
design
is
widely
reported;
nonetheless,
an
effective
maneuver
synergize
both
tactics
rarely
explored.
Herein,
we
propose
a
localized
electrolyte
optimization
via
the
introduction
of
dual-functional
biomass
modificator
over
anode.
Instrumental
characterization
in
conjunction
with
molecular
dynamics
simulation
indicates
local
solvation
structure
transformation
owing
limitation
bound
water
intermolecular
hydrogen
bonds,
effectively
suppressing
evolutions.
Meanwhile,
optimized
nucleation
throughout
protein
membrane
allows
uniform
deposition.
Accordingly,
symmetric
cell
exhibits
elongated
lifespan
3280
h
at
1.0
mA
cm–2/1.0
mAh
cm–2,
while
capacity
retention
full
sustains
91.1%
after
2000
cycles
5.0
A
g–1.
The
tailoring
might
offer
insights
into
operational
metal
anode
protection.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Авг. 9, 2024
Abstract
The
severe
dendrite
issue
of
the
Zn
anode
greatly
hinders
practical
application
aqueous
zinc‐ion
batteries,
which
demands
a
prompt
solution.
This
work
proposes
an
electrostripping
strategy
using
sodium
citrate
(SC)
solution
as
electrolyte
to
fabricate
3D
honeycomb‐like
(3DH‐Zn)
anode.
Theoretical
calculations
and
experimental
results
reveal
that
SC
preferentially
adsorbs
on
Zn(100)
Zn(101)
planes
exhibits
shielding
effect,
leading
major
dissolution
atoms
from
Zn(002)
plane,
thus
obtaining
structure.
Notably,
convinced
by
morphology
characterization
finite
element
simulation
results,
2+
tends
deposit
lateral
sides
hexagonal
holes
3DH‐Zn
anode,
resulting
in
flat
deposition
dominated
Zn(101)/Zn(100)
planes,
significantly
inhibits
formation.
As
result,
symmetric
cell
achieves
ultra‐long
lifespan
2000
h
at
5.0
mA
cm
−2
1.0
mAh
.
Besides,
3DH‐Zn||VO
2
full
works
for
1000
cycles
A
g
−1
with
residual
capacity
123.1
opens
up
new
horizon
applying
designing
advanced
Advanced Materials,
Год журнала:
2024,
Номер
36(32)
Опубликована: Июнь 12, 2024
Abstract
Aqueous
Zn‐ion
batteries
featuring
with
intrinsic
safety
and
low
cost
are
highly
desirable
for
large‐scale
energy
storage,
but
the
unstable
Zn‐metal
anode
resulting
from
uncontrollable
dendrite
growth
grievous
hydrogen
evolution
reaction
(HER)
shortens
their
cycle
life.
Herein,
a
feasible
in
situ
self‐reconfiguration
strategy
is
developed
to
generate
triple‐gradient
poly(diallyldimethylammonium)
bis(trifluoromethanesulfonyl)imide
(PDDA‐TFSI)‐Zn
5
(OH)
8
Cl
2
·H
O‐Sn
(PT‐ZHC‐Sn)
artificial
layer.
The
interface
consists
of
spherical
top
layer
PT
cation
confinement
H
O
inhibition,
dense
intermediate
ZHC
nanosheet
Zn
2+
conduction
electron
shielding,
bottom
Znophilic
Sn
metal.
well‐designed
interfacial
synergistically
facilitates
rapid
diffusion
regulate
uniform
deposition
accelerates
desolvation
process
while
suppressing
HER.
Consequently,
PT‐ZHC‐Sn@Zn
symmetric
cell
achieves
an
ultralong
lifespan
over
6500
h
at
0.5
mA
cm
−2
mAh
.
Furthermore,
full
battery
coupling
MnO
cathode
exhibits
17.2%
increase
capacity
retention
compared
bare
after
1000
cycles.
also
applied
prepare
PT‐ZHC‐In,
assembled
Zn//Cu
operates
steadily
8400
maintaining
Coulombic
efficiency
99.6%.
This
work
paves
way
designing
multicomponent
gradient
stable
anodes.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Май 3, 2024
Abstract
Metal
Zn
anode
encounters
uncontrolled
dendrite
growth,
resulting
in
poor
cycling
stability
and
low
coulombic
efficiency
(CE).
Herein,
a
novel
approach
for
oriented‐electrochemical
etching
of
(ECE‐Zn)
deep
eutectic
solvent
(DES)
is
presented
to
adjust
the
interface
concentration
electric
fields,
effectively
mitigating
intractable
issues.
The
oriented
etches
off
crystal
edges
between
(002),
(100),
(101)
principal
planes
commercial
foil,
subsequently
(100)
planes,
formation
well‐organized
columns.
Comprehensive
experimental
investigations
theoretical
analyses
reveal
that
ions
directionally
nucleate
grow
columns,
enabling
epitaxial
growth
at
(002)
plane.
ECE‐Zn‐2
anodes
demonstrate
remarkable
stability,
along
with
nucleation
polarization
voltages.
Specifically,
symmetric
cells
show
sustained
operation
5400
h,
long‐term
10
000
cycles
40
mA
cm
−2
.
More
significantly,
asymmetric
exhibit
an
average
CE
as
high
99.92%
over
6000
5.0
When
assembled
V
2
O
5
cathode,
retention
81.5%
can
be
maintained
even
under
severe
condition
(N/P
ratio
7.35).
This
strategy
opens
up
new
pathway
dendrite‐free
metal
anode.
ACS Nano,
Год журнала:
2024,
Номер
18(22), С. 14403 - 14413
Опубликована: Май 22, 2024
The
highly
reversible
plating/stripping
of
Zn
is
plagued
by
dendrite
growth
and
side
reactions
on
metallic
anodes,
retarding
the
commercial
application
aqueous
Zn-ion
batteries.
Herein,
a
distinctive
nano
dual-phase
diamond
(NDPD)
comprised
an
amorphous–crystalline
heterostructure
developed
to
regulate
deposition
mechanically
block
growth.
rich
heterointerfaces
in
NDPD
endow
modified
anodes
with
enhanced
affinity
result
homogeneous
nucleation.
In
addition,
unparalleled
hardness
effectively
overcomes
high
stress
dendrites
impedes
their
proliferation.
Moreover,
hydrophobic
surfaces
facilitate
desolvation
hydrate
Zn2+
prevent
water-mediated
reactions.
Consequently,
Zn@NDPD
presents
ultrastable
lifespan
exceeding
3200
h
at
5
mA
cm–2
1
mAh
cm–2.
practical
potential
further
demonstrated
full
cells.
This
work
exhibits
great
significance
chemical–mechanical
synergistic
anode
modification
strategy
constructing
high-performance
Energy Materials and Devices,
Год журнала:
2024,
Номер
2(3), С. 9370040 - 9370040
Опубликована: Май 27, 2024
The
intensifying
challenges
posed
by
climate
change
and
the
depletion
of
fossil
fuels
have
spurred
concerted
global
efforts
to
develop
alternative
energy
storage
solutions.
Aqueous
zinc-ion
batteries
(AZIBs)
emerged
as
promising
candidates
for
large-scale
electrochemical
systems,
owing
their
intrinsic
safety,
cost-effectiveness
environmental
sustainability.
However,
persistent
issue
Zn
dendrite
growth
poses
a
significant
challenge
performance
improvements
commercial
viability
AZIBs.
use
three-dimensional
porous
anodes
instead
planar
plates
has
been
demonstrated
an
effective
strategy
regulate
deposition/stripping
behavior
Zn2+
ions,
thereby
inhibiting
growth.
Here,
we
summarize
merits
provide
comprehensive
overview
recent
advancements
in
engineering
metal
anodes,
with
particular
emphasis
on
structural
orderliness
critical
role
structure
modulation
enhancing
battery
performance.
Furthermore,
present
strategic
insights
into
design
aiming
facilitate
practical
implementation
AZIBs
grid-scale
applications.
