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+.
Nano-Micro Letters,
Год журнала:
2024,
Номер
16(1)
Опубликована: Янв. 4, 2024
Aqueous
zinc
metal
batteries
(AZMBs)
are
promising
candidates
for
next-generation
energy
storage
due
to
the
excellent
safety,
environmental
friendliness,
natural
abundance,
high
theoretical
specific
capacity,
and
low
redox
potential
of
(Zn)
metal.
However,
several
issues
such
as
dendrite
formation,
hydrogen
evolution,
corrosion,
passivation
Zn
anodes
cause
irreversible
loss
active
materials.
To
solve
these
issues,
researchers
often
use
large
amounts
excess
ensure
a
continuous
supply
materials
anodes.
This
leads
ultralow
utilization
squanders
density
AZMBs.
Herein,
design
strategies
AZMBs
with
discussed
in
depth,
from
utilizing
thinner
foils
constructing
anode-free
structures
100%,
which
provides
comprehensive
guidelines
further
research.
Representative
methods
calculating
depth
discharge
different
first
summarized.
The
reasonable
modification
foil
anodes,
current
collectors
pre-deposited
Zn,
aqueous
(AF-AZMBs)
improve
then
detailed.
In
particular,
working
mechanism
AF-AZMBs
is
systematically
introduced.
Finally,
challenges
perspectives
high-utilization
presented.
Advanced Energy Materials,
Год журнала:
2023,
Номер
13(48)
Опубликована: Ноя. 7, 2023
Abstract
Aqueous
zinc
ion
batteries
(ZIBs)
are
troubled
by
the
severe
Zn
dendrite
growth
and
side
reactions,
manifesting
as
low
coulombic
efficiency
poor
cyclic
stability.
Electrolyte
engineering
is
regarded
an
efficient
method
to
improve
metal
reversibility.
Herein,
a
distinctive
electrolyte
regulation
strategy
demonstrated
for
long‐lasting
ZIBs
through
construction
of
competitive
solvation
structures.
In
composite
aqueous
system,
insoluble
LiNO
3
in
dimethyl
carbonate
(DMC)
introduced
outwit
active
water
dissociation
from
2+
coordination
environment,
organic/anion‐enriched
structure
enables
formation
stable
interface
effectively
restrain
adverse
reactions.
Distinctly,
anode
exhibits
inhibited
with
high
reversibility
plating/stripping
processes
over
1600
h
exceptional
cumulative
capacity
16
Ah
cm
−2
,
ultra‐long
lifespan
high‐temperature
(50
°C),
discharge
depth
(65%).
Furthermore,
||
V
2
O
5
full
battery
can
operate
stably
1000
cycles
at
1
A
g
−1
.
This
work
points
direction
solve
major
challenges
collaborative
regulated
environment
interfacial
chemistry.
Advanced Materials,
Год журнала:
2023,
Номер
36(6)
Опубликована: Ноя. 9, 2023
Abstract
Zinc
powder
(Zn‐P)
anodes
have
significant
advantages
in
terms
of
universality
and
machinability
compared
with
Zn
foil
anodes.
However,
their
rough
surface,
which
has
a
high
surface
area,
intensifies
the
uncontrollable
growth
dendrites
parasitic
side
reactions.
In
this
study,
an
anti‐corrosive
Zn‐P‐based
anode
functional
layer
formed
from
MXene
Cu‐THBQ
(MXene/Cu‐THBQ)
heterostructure
is
successfully
fabricated
via
microfluidic‐assisted
3D
printing.
The
unusual
strong
adsorption
ions
using
MXene/Cu‐THBQ
can
effectively
homogenize
ion
flux
inhibit
hydrogen
evolution
reaction
(HER)
during
repeated
process
plating/stripping,
thus
achieving
stable
cycling.
Consequently,
symmetric
cell
based
on
Zn‐P
exhibits
highly
reversible
cycling
1800
h
at
2
mA
cm
−2
/1
mAh
.
Furthermore,
Zn‐organic
full
battery
matched
4‐hydroxy‐2,2,6,6‐tetramethylpiperidine‐1‐oxyl
organic
cathode
riveted
graphene
delivers
capacity
maintains
long
cycle
life.
Advanced Materials,
Год журнала:
2024,
Номер
36(19)
Опубликована: Янв. 30, 2024
Abstract
Hydrogel
electrolytes
(HEs),
characterized
by
intrinsic
safety,
mechanical
stability,
and
biocompatibility,
can
promote
the
development
of
flexible
aqueous
zinc‐ion
batteries
(FAZIBs).
However,
current
FAZIB
technology
is
severely
restricted
uncontrollable
dendrite
growth
arising
from
undesirable
reactions
between
HEs
with
sluggish
ionic
conductivity
Zn
metal.
To
overcome
this
challenge,
work
proposes
a
molecular
engineering
strategy,
which
involves
introduction
oxygen‐rich
poly(urea‐urethane)
(OR‐PUU)
into
polyacrylamide
(PAM)‐based
HEs.
The
OR‐PUU/PAM
facilitate
rapid
ion
transfer
through
their
hopping
migration
mechanism,
resulting
in
uniform
orderly
2+
deposition.
abundant
polar
groups
on
OR‐PUU
molecules
break
inherent
H‐bond
network,
tune
solvation
structure
hydrated
,
inhibit
occurrence
side
reactions.
Moreover,
interaction
hierarchical
H‐bonds
endows
them
self‐healability,
enabling
situ
repair
cracks
induced
plating/stripping.
Consequently,
symmetric
cells
incorporating
novel
exhibit
long
cycling
life
2000
h.
Zn–MnO
2
battery
displays
low
capacity
decay
rate
0.009%
over
cycles
at
mA
g
−1
.
Overall,
provides
valuable
insights
to
realization
dendrite‐free
Zn‐metal
anodes
Energy & Environmental Science,
Год журнала:
2024,
Номер
17(20), С. 7850 - 7859
Опубликована: Янв. 1, 2024
By
constructing
a
hydrogel
film
doped
with
an
ionic
liquid
on
Zn
anode,
water-scarce
inner
Helmholtz
plane
and
ion-enriched
outer
is
developed,
which
effectively
enables
stable
zinc
anode
for
Ah-scale
metal
batteries.
Abstract
Rechargeable
aqueous
zinc‐ion
batteries
(AZIBs)
offer
high
energy
density,
low
cost,
and
are
environmentally
friendly,
rendering
them
potential
storage
devices.
However,
dendrite
growth
on
the
zinc
anode
numerous
side
reactions
during
operation
challenge
their
commercialization.
Recent
advancements
have
introduced
various
materials
for
functionalization
of
anodes.
These
developments
effectively
mitigate
performance
degradation
anode,
enhancing
both
its
cycle
stability
overall
AZIBs.
Herein,
construction
functionalized
anodes
is
discussed,
current
(including
organic,
inorganic
composites)
modified
categorized,
protective
mechanism
behind
analyzed.
The
study
concludes
by
outlining
characteristics
suitable
dendritic‐free
prospects
future
development
directions
in
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
unknown
Опубликована: Июль 8, 2024
Gradual
disability
of
Zn
anode
and
high
negative/positive
electrode
(N/P)
ratio
usually
depreciate
calendar
life
energy
density
aqueous
batteries
(AZBs).
Herein,
within
original
Numerous
organic
electrolytes
additives
have
been
reported
to
improve
Zn
anode
performance
in
aqueous
metal
batteries
(AZMBs).
However,
the
modification
mechanism
needs
be
further
revealed
consideration
of
different
environments
for
and
electrodes
during
charge-discharge
process.
Herein,
sulfur-containing
zwitter-molecule
(methionine,
Met)
is
used
as
an
additive
ZnSO
Advanced Materials,
Год журнала:
2024,
Номер
36(19)
Опубликована: Фев. 7, 2024
Abstract
The
uneven
texture
evolution
of
Zn
during
electrodeposition
would
adversely
impact
upon
the
lifespan
aqueous
metal
batteries.
To
address
this
issue,
tremendous
endeavors
are
made
to
induce
Zn(002)
orientational
deposition
employing
graphene
and
its
derivatives.
Nevertheless,
effect
prototype
film
over
behavior
has
garnered
less
attention.
Here,
it
is
attempted
solve
such
a
puzzle
via
utilizing
transferred
high‐quality
with
controllable
layer
numbers
in
scalable
manner
on
foil.
multilayer
fails
facilitate
epitaxial
deposition,
whereas
monolayer
slight
breakages
steers
unique
pinhole
mode.
In‐depth
electrochemical
measurements
theoretical
simulations
discover
that
not
only
acts
as
an
armor
inhibit
side
reactions
but
also
serves
buffer
homogenize
initial
nucleation
decrease
migration
barrier,
accordingly
enabling
smooth
closely
stacked
polycrystalline
domains.
As
result,
both
assembled
symmetric
full
cells
manage
deliver
satisfactory
performances.
This
study
proposes
concept
“pinhole
deposition”
dictate
broadens
horizons
graphene‐modified
anodes.
