Nano-Micro Letters,
Год журнала:
2024,
Номер
16(1)
Опубликована: Янв. 25, 2024
Abstract
The
practical
application
of
aqueous
zinc-ion
batteries
for
large-grid
scale
systems
is
still
hindered
by
uncontrolled
zinc
dendrite
and
side
reactions.
Regulating
the
electrical
double
layer
via
electrode/electrolyte
interface
an
effective
strategy
to
improve
stability
Zn
anodes.
Herein,
we
report
ultrathin
zincophilic
ZnS
as
a
model
regulator.
At
given
cycling
current,
cell
with
Zn@ZnS
electrode
displays
lower
potential
drop
over
Helmholtz
(stern
layer)
suppressed
diffuse
layer,
indicating
regulated
charge
distribution
decreased
electric
repulsion
force.
Boosted
adsorption
sites
are
also
expected
proved
enhanced
double-layer
capacitance.
Consequently,
symmetric
protection
can
stably
cycle
around
3,000
h
at
1
mA
cm
−2
overpotential
25
mV.
When
coupled
I
2
/AC
cathode,
demonstrates
high
rate
performance
160
mAh
g
−1
0.1
A
long
10,000
cycles
10
.
Zn||MnO
sustains
both
capacity
130
after
1,200
0.5
Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
62(11)
Опубликована: Янв. 20, 2023
Abstract
The
inhomogeneous
consumption
of
anions
and
direct
contact
between
electrolyte
anode
during
the
Zn‐deposition
process
generate
Zn‐dendrites
side
reactions
that
can
aggravate
space‐charge
effect
to
hinder
practical
implementation
zinc‐metal
batteries
(ZMBs).
Herein,
electrospray
has
been
applied
for
scalable
fabrication
(>10
000
cm
2
in
a
batch‐experiment)
hetero‐metallic
cluster
covalent‐organic‐frameworks
(MCOF‐Ti
6
Cu
3
)
nanosheet‐coating
(MNC)
with
integrated
micro
space
electrostatic
field
ZMBs
protection.
MNC@Zn
symmetric
cell
presents
ultralow
overpotential
(≈72.8
mV)
over
10
cycles
at
1
mAh
−2
20
mA
,
which
is
superior
bare
Zn
state‐of‐the‐art
porous
crystalline
materials.
Theoretical
calculations
reveal
MNC
facilitate
deposition‐kinetic
homogenize
electric
significantly
promote
lifespan
ZMBs.
Nano-Micro Letters,
Год журнала:
2023,
Номер
15(1)
Опубликована: Фев. 8, 2023
Aqueous
zinc-ion
battery
(ZIB)
featuring
with
high
safety,
low
cost,
environmentally
friendly,
and
energy
density
is
one
of
the
most
promising
systems
for
large-scale
storage
application.
Despite
extensive
research
progress
made
in
developing
high-performance
cathodes,
Zn
anode
issues,
such
as
dendrites,
corrosion,
hydrogen
evolution,
have
been
observed
to
shorten
ZIB's
lifespan
seriously,
thus
restricting
their
practical
Engineering
advanced
anodes
based
on
two-dimensional
(2D)
materials
are
widely
investigated
address
these
issues.
With
atomic
thickness,
2D
possess
ultrahigh
specific
surface
area,
much
exposed
active
sites,
superior
mechanical
strength
flexibility,
unique
electrical
properties,
which
confirm
be
a
alternative
material
ZIBs.
This
review
aims
boost
rational
design
strategies
application
ZIB
by
combining
fundamental
principle
progress.
Firstly,
principles
against
drawbacks
introduced.
Then,
designed
several
typical
stable
comprehensively
summarized.
Finally,
perspectives
future
development
taking
advantage
properties
proposed.
Journal of the American Chemical Society,
Год журнала:
2024,
Номер
146(22), С. 15496 - 15505
Опубликована: Май 24, 2024
The
practical
application
of
aqueous
zinc-ion
batteries
(AZIBs)
is
greatly
challenged
by
rampant
dendrites
and
pestilent
side
reactions
resulting
from
an
unstable
Zn–electrolyte
interphase.
Herein,
we
report
the
construction
a
reliable
superstructured
solid
electrolyte
interphase
for
stable
Zn
anodes
using
mesoporous
polydopamine
(2D-mPDA)
platelets
as
building
blocks.
shows
biomimetic
nacre's
"brick-and-mortar"
structure
artificial
transmembrane
channels
hexagonally
ordered
mesopores
in
plane,
overcoming
mechanical
robustness
ionic
conductivity
trade-off.
Experimental
results
simulations
reveal
that
−OH
−NH
groups
on
surface
ion
can
promote
rapid
desolvation
kinetics
serve
sieve
to
homogenize
Zn2+
flux,
thus
inhibiting
ensuring
uniform
deposition
without
dendrites.
2D-mPDA@Zn
electrode
achieves
ultralow
nucleation
potential
35
mV
maintains
Coulombic
efficiency
99.8%
over
1500
cycles
at
5
mA
cm–2.
Moreover,
symmetric
battery
exhibits
prolonged
lifespan
580
h
high
current
density
20
This
also
demonstrates
feasibility
Zn//VO2
full
cells
paves
new
route
rechargeable
metal-ion
batteries.
Nano-Micro Letters,
Год журнала:
2024,
Номер
16(1)
Опубликована: Янв. 25, 2024
Abstract
The
practical
application
of
aqueous
zinc-ion
batteries
for
large-grid
scale
systems
is
still
hindered
by
uncontrolled
zinc
dendrite
and
side
reactions.
Regulating
the
electrical
double
layer
via
electrode/electrolyte
interface
an
effective
strategy
to
improve
stability
Zn
anodes.
Herein,
we
report
ultrathin
zincophilic
ZnS
as
a
model
regulator.
At
given
cycling
current,
cell
with
Zn@ZnS
electrode
displays
lower
potential
drop
over
Helmholtz
(stern
layer)
suppressed
diffuse
layer,
indicating
regulated
charge
distribution
decreased
electric
repulsion
force.
Boosted
adsorption
sites
are
also
expected
proved
enhanced
double-layer
capacitance.
Consequently,
symmetric
protection
can
stably
cycle
around
3,000
h
at
1
mA
cm
−2
overpotential
25
mV.
When
coupled
I
2
/AC
cathode,
demonstrates
high
rate
performance
160
mAh
g
−1
0.1
A
long
10,000
cycles
10
.
Zn||MnO
sustains
both
capacity
130
after
1,200
0.5
