Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(44)
Published: Oct. 8, 2024
Abstract
A
large
concentration
gradient
originating
from
sluggish
ion
transport
on
the
surface
of
Zn
metal
anodes
will
result
in
uneven
2+
flux,
giving
rise
to
severe
dendrite
growth,
especially
at
high
current
density.
Herein,
an
acceleration
layer
is
introduced
by
a
facile
separator
engineering
strategy
realize
modulated
flux
and
dendrite‐free
deposition.
Zinc
hexacyanoferrate
as
modifying
agent
featuring
strong
zincophilicity
rapid
diffusion
tunnel
can
enable
fast
trap
for
near
electrode
immediate
onto
deposition
sites,
respectively.
The
effect
substantiated
improved
conductivity,
decreased
activated
energy,
promoted
transference
number,
which
moderate
guide
homogenous
distribution.
As
result,
guarantees
Zn||Zn
symmetrical
cells
with
long‐term
stability
2700
h
2
mA
cm
−2
,
1770
density
10
.
Moreover,
cycling
rate
capability
full
different
cathodes
be
substantially
modified
separator,
validating
its
superior
practical
feasibility.
This
study
supplies
new
scalable
approach
tailoring
robust
Angewandte Chemie International Edition,
Journal Year:
2023,
Volume and Issue:
62(27)
Published: May 2, 2023
The
irreversible
issues
of
Zn
anode
stemming
from
dendrite
growth
and
water-induced
erosion
have
severely
hindered
the
commercialization
rechargeable
aqueous
batteries.
Herein,
a
hydrophobic
fast-Zn2+
-conductive
zinc
hexacyanoferrate
(HB-ZnHCF)
interphase
layer
is
in
situ
integrated
on
by
rapid
room-temperature
wet-chemistry
method
to
address
these
dilemmas.
Different
currently
proposed
hydrophilic
inorganic
cases,
compact
HB-ZnHCF
effectively
prevents
access
water
molecules
surface,
thus
avoiding
H2
evolution
corrosion.
Moreover,
with
large
internal
ion
channels,
strong
zincophilicity,
high
Zn2+
transference
number
(0.86)
permits
fast
transport
enables
smooth
deposition.
Remarkably,
resultant
HB-ZnHCF@Zn
electrode
delivers
unprecedented
reversibility
99.88
%
Coulombic
efficiency
over
3000
cycles,
realizes
long-term
cycling
5800
h
(>8
months,
1
mA
cm-2
)
1000
(10
),
assures
stable
operation
full
battery
both
coin-
pouch-type
configurations.
ACS Energy Letters,
Journal Year:
2023,
Volume and Issue:
8(7), P. 2886 - 2896
Published: June 2, 2023
Aqueous
rechargeable
Zn
metal
batteries
have
garnered
increasing
attention
due
to
their
high
theoretical
capacity,
safety,
and
low
cost.
However,
commercialization
has
been
impeded
by
the
rapid
cycling
deterioration
caused
side
reactions
dendrite
growth
on
anodes.
The
present
work
explores
a
dielectric
organic–inorganic
film
with
hydrophobic
surface
circumvent
these
problems
suppress
zinc
anode.
Dielectric
BaTiO3/P(VDF-TrFE)
(BTO/PVT)
coating
demonstrated
promote
uniform
deposition
inhibit
growth.
also
regulates
Zn-ion
desolvation
process
at
interfaces
is
crucial
in
preventing
water
from
harming
anode
surface,
leading
dendrite-free
little
formation
of
byproducts.
resulting
BTO/PVT@Zn
long
lifespan
3000
h
an
average
Coulombic
efficiency
99.6%
1
mA
cm–2.
In
addition,
BTO/PVT@Zn||NH4V4O10
full
cell
shows
good
rate
capability
lifespan.
Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
146(9), P. 6199 - 6208
Published: Feb. 23, 2024
A
reliable
solid
electrolyte
interphase
(SEI)
on
the
metallic
Zn
anode
is
imperative
for
stable
Zn-based
aqueous
batteries.
However,
incompatible
Zn-ion
reduction
processes,
scilicet
simultaneous
adsorption
(capture)
and
desolvation
(repulsion)
of
Zn2+(H2O)6,
raise
kinetics
stability
challenges
design
SEI.
Here,
we
demonstrate
a
tandem
chemistry
strategy
to
decouple
accelerate
concurrent
processes
Zn2+
cluster
at
inner
Helmholtz
layer.
An
electrochemically
assembled
perforative
mesopore
SiO2
with
hydrophilic
−OH
hydrophobic
−F
groups
serves
as
Janus
mesopores
accelerator
boost
fast
reaction.
Combining
in
situ
electrochemical
digital
holography,
molecular
dynamics
simulations,
spectroscopic
characterizations
reveals
that
capture
clusters
from
bulk
then
repulse
coordinated
H2O
molecules
solvation
shell
achieve
ion
process.
The
resultant
symmetric
batteries
exhibit
reversible
cycles
over
8000
2000
h
under
high
current
densities
4
10
mA
cm–2,
respectively.
feasibility
further
evidenced
both
Zn//VO2
Zn//I2
batteries,
it
might
be
universal
other
metal-ion
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(18)
Published: Jan. 25, 2024
Abstract
Rechargeable
aqueous
zinc
(Zn)
batteries
are
a
promising
candidate
for
large‐scale
energy
storage,
but
the
noncompact
and
dendritic
Zn
deposition,
water‐induced
parasitic
reaction,
narrow
operating
temperature
range
severely
hinder
their
practical
application.
Here,
it
is
demonstrated
that
these
challenges
can
be
conquered
by
introducing
low‐cost
acetamide
(Ace)
into
electrolytes.
The
non‐sacrificial
Ace
molecules
with
both
donor
acceptor
groups
disrupt
original
H‐bonded
network
of
water,
replace
solvating‐H
2
O
in
2+
‐solvation
sheath,
form
dynamic
adsorption
on
Zn,
create
an
H
O‐poor
electrical
double‐layer.
Consequently,
presence
suppresses
water
erosion
homogenizes
nucleation/growth,
reduces
reactivity,
depresses
freezing
point
electrolyte.
formulated
Ace‐containing
electrolyte
features
wide
from
−20
to
60
°C
enables
highly
compact
dendrite‐free
electrodeposition
even
at
25
mAh
cm
−2
using
non‐pressure
electrolytic
cell.
Moreover,
allows
electrodes
achieve
long‐term
lifespan
across
−20–60
excellent
deep
cycling
stability
under
85.3%
depth‐of‐discharge
(25
)
over
400
h,
supports
stable
operation
Zn–Iodine
full
harsh
conditions.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
33(52)
Published: Sept. 15, 2023
Abstract
The
cyclability
of
aqueous
zinc‐ion
batteries
is
greatly
influenced
by
Zn
dendrites
and
parasitic
reactions.
Although
separator
modifications
have
proven
to
be
effective
in
addressing
these
issues,
most
the
developed
separators
are
too
thick
meet
practical
requirements.
Herein,
an
amino
(−NH
2
)‐functionalized
Zr‐based
metal–organic
framework
(MOF),
i.e.,
UiO‐66‐NH
,
incorporated
into
lignocellulose
separator.
functional
groups
not
only
possess
good
zincophilicity
but
also
strongly
interact
with
H
O
molecules
through
hydrogen
bonding.
Therefore,
abundant
intersecting
subnano‐sized
channels
within
act
as
desolvation
sieves
facilitate
migration
uniform
distribution
2+
ions.
Even
at
a
rather
low
thickness
20
µm,
modified
can
significantly
improve
reversibility
electrochemistry
suppress
water‐induced
evolution.
With
use
this
separator,
electrodes
demonstrate
working
life
exceeding
2000
h
current
density
mA
cm
−2
remarkable
dendrite‐free
characteristic
remain
operationally
viable
under
ultrahigh
areal
capacity
25
mAh
.
Additionally,
resultant
Zn//MnO
battery
provides
superior
rate
capability
excellent
cyclability.
This
study
novel
insights
utilization
inhibit
unfavorable
phenomena
batteries.
ACS Nano,
Journal Year:
2023,
Volume and Issue:
17(23), P. 23861 - 23871
Published: Nov. 15, 2023
Regulating
the
crystallographic
texture
of
zinc
(Zn)
metal
anode
is
promising
to
promote
Zn
reversibility
in
aqueous
electrolytes,
but
direct
fabrication
specific
textured
still
remains
challenging.
Herein,
we
report
a
facile
iodide
ion
(I-)-assisted
electrodeposition
strategy
that
can
scalably
fabricate
highly
(002)
crystal
plane-textured
(H-(002)-Zn).
Theoretical
and
experimental
characterizations
demonstrate
presence
I-
additives
significantly
elevate
growth
rate
(100)
plane,
homogenize
nucleation,
plating
kinetics,
thus
enabling
uniform
H-(002)-Zn
electrodeposition.
Taking
electrolytic
cell
with
conventional
ZnSO4-based
electrolyte
commercial
Cu
substrate
as
model
system,
gradually
transforms
from
(101)
increase
NaI
additive
concentration.
In
optimized
1
M
ZnSO4
+
0.8
electrolyte,
as-prepared
features
compact
structure
an
ultrahigh
intensity
ratio
signal
without
containing
signal.
The
free-standing
electrode
manifests
stronger
resistance
interfacial
side
reactions
than
(101)-textured
electrode,
delivering
high
efficiency
99.88%
over
400
cycles
ultralong
cycling
lifespan
6700
h
(>9
months
at
mA
cm-2)
assuring
stable
operation
full
batteries.
This
work
will
enlighten
efficient
electrosynthesis
high-performance
anodes
for
practical
Nano-Micro Letters,
Journal Year:
2023,
Volume and Issue:
15(1)
Published: Aug. 31, 2023
The
last
several
years
have
witnessed
the
prosperous
development
of
zinc-ion
batteries
(ZIBs),
which
are
considered
as
a
promising
competitor
energy
storage
systems
thanks
to
their
low
cost
and
high
safety.
However,
reversibility
availability
this
system
blighted
by
problems
such
uncontrollable
dendritic
growth,
hydrogen
evolution,
corrosion
passivation
on
anode
side.
A
functionally
structurally
well-designed
current
collectors
(CCs)
is
believed
viable
solution
for
those
problems,
with
lack
summarization
according
its
working
mechanisms.
Herein,
review
focuses
challenges
zinc
mechanisms
modified
CCs,
can
be
divided
into
zincophilic
modification,
structural
design,
steering
preferred
crystal
facet
orientation.
possible
prospects
directions
research
design
proposed
at
end
hopefully
promote
practical
application
ZIBs.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(25)
Published: March 19, 2024
Abstract
Low
capacity
and
poor
cycle
stability
greatly
inhibit
the
development
of
zinc‐iodine
batteries.
Herein,
a
high‐performance
Zn‐iodine
battery
has
been
reached
by
designing
optimizing
both
electrode
electrolyte.
The
Br
−
is
introduced
as
activator
to
trigger
I
+
,
coupled
with
forming
interhalogen
stabilize
achieve
four‐electron
reaction,
which
promotes
capacity.
And
Ni−Fe−I
LDH
nanoflowers
serve
confinement
host
enable
reactions
/I
occurring
in
layer
due
spacious
stable
interlayer
spacing
LDH,
effectively
suppresses
iodine‐species
shuttle
ensuring
high
cycling
stability.
As
result,
electrochemical
performance
enhanced,
especially
specific
(as
350
mAh
g
−1
at
1
A
far
higher
than
two‐electron
transfer
batteries)
(94.6
%
retention
after
10000
cycles).
This
strategy
provides
new
way
realize
long‐term
