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
eScience,
Год журнала:
2023,
Номер
4(2), С. 100205 - 100205
Опубликована: Окт. 19, 2023
Stabilizing
the
Zn
anode
under
high
utilization
rates
is
highly
applauded
yet
very
challenging
in
aqueous
batteries.
Here,
we
rationally
design
a
zincophilic
short-chain
aromatic
molecule,
4-mercaptopyridine
(4Mpy),
to
construct
self-assembled
monolayers
(SAMs)
on
copper
substrate
achieve
utilized
anodes.
We
reveal
that
4Mpy
could
be
firmly
bound
Cu
via
Cu−S
bond
form
compact
and
uniform
SAMs,
which
effectively
isolate
water
electrode
surface
thus
eliminate
water-related
side
reactions.
In
addition,
ring
structure
of
not
only
ensure
ordered
arrangement
pyridine
N
but
also
facilitate
charge
transfer,
enabling
rapid
deposition.
Consequently,
Zn/4Mpy/Cu
enables
symmetric
cell
stably
cycle
for
over
180
h
at
10
mA
cm−2
depth-of-discharge
90%,
allows
MnO2-paired
pouch
survive
100
cycles
rate
78.8%.
An
anode-free
4Mpy/Cu||graphite
operates
150
without
obvious
capacity
fading
0.1
A
g−1.
This
control
interfacial
chemistry
SAMs
metal
anodes
provides
new
paradigm
developing
high-energy
metal-based
Advanced Energy Materials,
Год журнала:
2024,
Номер
14(23)
Опубликована: Апрель 19, 2024
Abstract
Aqueous
zinc
ion
batteries
(AZIBs)
have
stimulated
extensive
attention
due
to
their
environmental
friendliness
and
low
cost.
Unfortunately,
the
inevitable
dendrite
growth
corrosion
on
(Zn)
anode
severely
hinder
practical
application
of
AZIBs.
Herein,
an
amino
acid
containing
imidazole
group
is
introduced
as
effective
additive
address
these
issues.
The
dynamic
conversion
protonated
creates
a
pH
buffer
function
that
regulates
solution
in
real
time,
inhibits
hydrogen
evolution
reaction
(HER),
eliminates
notorious
by‐products.
In
addition,
preferentially
adsorbed
Zn
anode,
preventing
contact
active
water
with
surface
promoting
homogeneous
deposition.
Thus,
acid‐based
electrolyte
promotes
free
plating/stripping
Coulombic
efficiency
up
99.67%
cycle
lifetime
2600
h.
particular,
depth
discharge
87%
can
be
achieved
ultra‐high
areal
capacity
24
mAh
cm
−2
.
developed
Zn||CVO
full
cell
also
exhibits
better
electrochemical
performance
than
without
additives.
This
work
provides
convenient
approach
for
safe
efficient
Zn‐ion
batteries.
Carbon Neutralization,
Год журнала:
2024,
Номер
3(1), С. 108 - 141
Опубликована: Янв. 1, 2024
Abstract
Over
the
past
decades,
there
has
been
a
growing
interest
in
rechargeable
aqueous
Zn‐ion
batteries
(AZIBs)
as
viable
substitute
for
lithium‐ion
batteries.
This
is
primarily
due
to
their
low
cost,
lower
redox
potential,
and
high
safety.
Nevertheless,
progress
of
Zn
metal
anodes
impeded
by
various
challenges,
including
growth
dendrites,
corrosion,
hydrogen
evolution
reaction
during
repeated
cycles
that
result
Coulombic
efficiency
short
lifetime.
Therefore,
we
represent
recent
advances
anode
protection
constructing
high‐performance
AZIBs.
Besides,
show
in‐depth
analyses
supposed
hypotheses
on
working
mechanism
these
issues
associated
with
mildly
acidic
electrolytes.
Meanwhile,
design
principles
feasible
strategies
are
proposed
suppress
dendrites'
formation
batteries,
electrode
design,
electrolyte
modification,
interface
regulation,
which
suitable
restraining
corrosion
reaction.
Finally,
current
challenges
future
trends
raised
pave
way
commercialization
These
potential
applicable
other
metal‐ion
such
Li
K
Journal of Materials Chemistry A,
Год журнала:
2024,
Номер
12(25), С. 15352 - 15360
Опубликована: Янв. 1, 2024
A
dual-gradient
carbon-fiber/argentiferous
interphase
with
longitudinally
strengthened
zincophilicity-conductivity
is
devised
on
a
Zn
anode,
which
guides
bottom-preferential
homogeneous
deposition
for
mitigating
dendrites
and
side
reactions.
Advanced Materials,
Год журнала:
2024,
Номер
36(29)
Опубликована: Май 8, 2024
The
practical
applications
for
aqueous
Zn
ion
batteries
(ZIBs)
are
promising
yet
still
impeded
by
the
severe
side
reactions
on
metal.
Here,
a
lysozyme
protective
layer
(LPL)
is
prepared
metal
surface
simple
and
facile
self-adsorption
strategy.
LPL
exhibits
extremely
strong
adhesion
to
provide
stable
interface
during
long-term
cycling.
In
addition,
strategy
triggered
hydrophobicity-induced
aggregation
effect
endows
with
gap-free
compacted
morphology
which
can
reject
free
water
effective
reaction
inhibition
performance.
More
importantly,
conformation
transformed
from
α-helix
β-sheet
structure
before
formation,
thus
abundant
functional
groups
exposed
interact
Nano-Micro Letters,
Год журнала:
2024,
Номер
16(1)
Опубликована: Март 5, 2024
Aqueous
Zn-ion
batteries
(AZIBs)
have
attracted
increasing
attention
in
next-generation
energy
storage
systems
due
to
their
high
safety
and
economic.
Unfortunately,
the
side
reactions,
dendrites
hydrogen
evolution
effects
at
zinc
anode
interface
aqueous
electrolytes
seriously
hinder
application
of
zinc-ion
batteries.
Here,
we
report
a
critical
solvation
strategy
achieve
reversible
electrochemistry
by
introducing
small
polar
molecule
acetonitrile
form
"catcher"
arrest
active
molecules
(bound
water
molecules).
The
stable
structure
[Zn(H
ACS Nano,
Год журнала:
2024,
Номер
18(33), С. 21779 - 21803
Опубликована: Авг. 12, 2024
Aqueous
zinc-ion
batteries
(AZIBs)
are
widely
regarded
as
desirable
energy
storage
devices
due
to
their
inherent
safety
and
low
cost.
Hydrogel
polymer
electrolytes
(HPEs)
cross-linked
polymers
filled
with
water
zinc
salts.
They
not
only
used
in
flexible
but
also
represent
an
ideal
electrolyte
candidate
for
addressing
the
issues
associated
Zn
anode,
including
dendrite
formation
side
reactions.
In
HPEs,
abundance
of
hydrophilic
groups
can
form
strong
hydrogen
bonds
molecules,
reducing
activity
inhibiting
decomposition.
At
same
time,
special
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(25)
Опубликована: Янв. 20, 2024
Abstract
The
development
of
aqueous
rechargeable
Zn
metal
batteries,
as
one
the
most
promising
large‐scale
energy
storage
technology,
is
hindered
largely
by
dendrite
growth
and
surface
passivation
anode,
which
are
deleterious
to
battery
life
Coulombic
efficiency
(CE).
This
report
demonstrates
that
ethylenediamine
tetramethylenephosphonic
acid
can
in
situ
coordinate
with
(EDTMP‐Zn)
along
exposing
(002)
planes
for
highly
reversible
stable
plating/stripping.
zincophilic
EDTMP‐Zn
layer
may
serve
ion
sieves
homogenize
flux
at
anode
consequently
induce
uniform
deposition
Zn.
hydrophobic
groups
such
functional
thought
circumvent
from
corrosion
hydrogen
evolution
reaction.
EDTMP15‐Zn
modified
(EDTMP15‐Zn@Zn)
delivers
a
lifespan
exceeding
1400
h
5
mA
cm
−2
,
1
mAh
Zn||Zn
symmetric
cell
improved
CE
99.7%
over
1000
cycles
Zn||Cu
cell.
full
coupled
NH
4
V
O
10
cathode
rate
performance
cycle
stability.
