Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Авг. 17, 2024
Abstract
High‐temperature
aqueous
zinc
batteries
have
recently
garnered
significant
attention
for
large‐scale
energy
storage.
However,
spontaneous
hydrogen
evolution
and
passivation
on
the
Zn
metal
anode
severely
affect
its
cycling
stability
under
elevated
temperature
conditions.
Herein,
a
facile
strategy
is
employed
to
construct
bifunctional
composite
protective
layer
comprising
an
insulating
ZnF
2
combined
with
affinity
conductive
tin
(Sn)
metal.
This
combination
optimally
distributes
ions
(Zn
2+
)
maintains
consistent
thermal
field
distribution
around
anodes.
Moreover,
presence
of
fluorides
interface
efficiently
suppresses
reaction,
while
Sn
serves
as
nucleation
seeds
reversible
alloying
dealloying
process
endow
dendrite‐free
morphology
fast
reaction
kinetics.
Specifically,
symmetric
cell
coated
electrode
exhibits
excellent
at
current
density
3
mA
cm
−2
over
420
h
50
°C.
When
coupled
modified
I
cathode,
Zn//I
full
cells
deliver
high
areal
capacity
substantiate
their
practical
application,
exhibiting
remarkable
high‐temperature
resilience
2000
cycles
97.8%
retained
Carbon Neutralization,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 18, 2024
Abstract
Zinc
metal
stands
out
as
a
promising
anode
material
due
to
its
exceptional
theoretical
capacity,
impressive
energy
density,
and
low
redox
potential.
However,
challenges
such
zinc
dendrite
growth,
corrosion,
side
reactions
in
aqueous
electrolytes
significantly
impede
the
practical
application
of
anodes.
Herein,
3‐(1‐pyridinio)‐1‐propanesulfonate
(PPS)
is
introduced
zwitterionic
additive
achieve
long‐term
highly
reversible
Zn
plating/stripping.
Due
orientation
polarization
with
force
electric
field,
PPS
π–π
conjugated
pyridinio
cations
strong
coordination
ability
sulfonate
anion
tends
generate
dynamic
adsorption
layer
build
unique
water–poor
interface.
steric
hindrance
effect
can
attract
solvated
2+
,
thereby
promoting
desolvation
process.
Moreover,
by
providing
large
number
nucleation
sites
inducing
ion
flow,
preferred
(002)
crystal
plane
be
achieved.
Therefore,
interfacial
electrochemical
reduction
kinetics
regulated
uniform
deposition
ensured.
Owing
these
advantages,
Zn//Zn
symmetrical
cell
exhibits
remarkable
cycling
stability
exceeding
2340
h
(1
mA
cm
−2
1
).
The
Zn//V
2
O
5
full
also
delivers
stable
for
up
6000
cycles.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Авг. 6, 2024
Abstract
Due
to
their
cost‐effectiveness,
high
safety,
and
environmental
friendliness,
aqueous
zinc‐ion
batteries
(AZIBs)
are
among
the
most
promising
technologies
for
next‐generation
energy
storage
systems.
Nonetheless,
dendrite
growth,
hydrogen
evolution,
corrosion
at
zinc
(Zn)
anode
severely
hinder
practical
application.
In
this
study,
a
combination
of
molecular
self‐assembly
engineering,
squeegee
coating,
air
spraying
process
is
employed
create
superhydrophobic
highly
flexible
artificial
solid‐electrolyte‐interface
layer
on
Zn
(denoted
as
SFM/Zn).
Self‐assembled
monolayer
triethoxy‐3‐aminopropylsilane
optimizes
2+
migration
kinetics.
The
interface,
formed
by
polydimethylsiloxane
(PDMS)
trimethoxy(octadecyl)silane
(OTS)‐modified
nanosilicon
dioxide
particles,
inhibits
water‐related
side
reactions.
Furthermore,
PDMS
serves
dynamic
adaptive
interface
anode,
effectively
alleviating
“tip
effect”.
Consequently,
SFM/Zn||SFM/Zn
symmetrical
cells
enable
reversible
stable
plating/stripping
both
ultralow
current
density
(0.2
mA
cm
−2
)
ultrahigh
(45
).
assembled
Zn‐vanadium
(SFM/Zn||NH
4
V
O
10
cell
deliver
average
Coulombic
efficiency
(nearly
100%)
ultralong
cycling
stability
(135.5
mAh
g
−1
after
500
cycles
5
A
173.2
1000
2
This
innovative
three‐layered
strategy
sheds
new
light
designing
durable
high‐performance
AZIBs.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 23, 2025
Abstract
Aqueous
Zn
metal
batteries
(AZMBs)
have
appealing
advantages,
including
good
safety,
low
cost,
and
high
volumetric
energy
density.
However,
serious
parasitic
reactions
dendrite
growth
at
anodes
hinder
practical
applications
of
AZMBs.
Here,
a
nature‐inspired
strategy
is
proposed
to
improve
using
plant‐cell
derivatives
as
additives
for
ZnSO
4
electrolytes.
In
the
electrolyte,
TEMPO
(2,2,6,6‐tetramethylpiperidine‐1‐oxyl)‐oxidized
cellulose
nanofibers
(TOCN)
calcium
lignosulfonate
(CL)
with
specific
functional
groups
modulate
2+
solvation
structure.
More
importantly,
they
reform
cell
membrane/wall‐like
layer
mechanical
strength
selective
transmission/plating
on
anode
surface,
which
enables
uniform
deposition
alleviates
side
reactions.
As
result,
symmetric
cells
dual‐additive
electrolyte
exhibit
highly
reversible
dendrite‐free
stripping/plating
behavior
over
2000
500
h
2
mA
cm
−2
/1
mAh
10
/10
,
respectively.
Furthermore,
Zn//NH
V
O
full
shows
cycling
stability
300
cycles
negative/positive
(N/P)
ratio.
A
density
92.9
Wh
kg
−1
can
be
delivered
limited
metallic
consumption,
showing
that
has
prospects
use.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 4, 2025
Abstract
Zinc–iodine
batteries
(ZIBs)
are
promising
energy
storage
devices
due
to
their
nonflammable
aqueous
electrolyte
and
intrinsically
safe
zinc
(Zn)
anode
but
encounters
thorny
challenges,
including
soluble
polyiodides
shuttling
sluggish
iodine
redox
kinetics.
Here,
an
ionic
porous
organic
polymers
(iPOPs)
with
Lewis
acid–base
pairs
(e.g.,
pyridine
cation
free
Br
−
)
Zn
single‐atom
sites
(iPOP‐TPyPZn)
is
developed
as
advanced
I
2
host
notably
enhance
the
performance
of
ZIBs.
The
iPOP‐TPyPZn
can
not
only
significantly
prevent
via
synergy
also
expedite
kinetics
species
through
combined
action
acid
catalytic
sites.
Benefiting
from
double
synergistic
mechanism,
assembled
ZIBs
loaded
cathode
exhibit
outstanding
electrochemical
ultra‐high
cycling
stability
over
40
000
cycles
at
8
A
g
−1
.
Combined
in/ex
situ
spectral
characterizations
theoretical
calculations
clearly
reveal
reversible
reaction
mechanism
vital
role
in
enhancing
performance.
This
work
provides
a
path
for
precise
preparation
hosts
offers
new
insights
into
toward
metal–I
batteries.
