The
high
Zn
ion
desolvation
energy,
sluggish
deposition
kinetics,
and
top
plating
pattern
are
the
key
challenges
toward
practical
anodes.
Herein,
these
issues
addressed
by
introducing
zinc
pyrovanadate
(ZVO)
as
a
solid
zinc-ion
conductor
interface
to
induce
smooth
fast
underneath
layer.
Electrochemical
studies,
computational
analysis,
in
situ
observations
reveal
boosted
uniformity
ZVO
interface.
In
addition,
anti-corrosion
ability
of
anodes
is
improved,
resulting
stripping/plating
reversibility.
Consequently,
layer
renders
rechargeability
durable
life
both
symmetric
cells
(1050
h
at
10
mA
cm-2
,
1
mAh
)
Zn/V2
O5
batteries
(79.1%
capacity
retention
after
1000
cycles
2
A
g-1
with
low
electrode
polarization.
This
work
provides
insights
into
design
enhance
stability
kinetics
metal
Abstract
Rechargeable
aqueous
Zn‐ion
batteries
(AZIBs)
are
one
of
the
most
promising
alternatives
for
traditional
energy‐storage
devices
because
their
low
cost,
abundant
resources,
environmental
friendliness,
and
inherent
safety.
However,
several
detrimental
issues
with
Zn
metal
anodes
including
dendrite
formation,
hydrogen
evolution,
corrosion
passivation,
should
be
considered
when
designing
advanced
AZIBs.
Moreover,
these
thorny
not
independent
but
mutually
reinforcing,
covering
many
technical
processing
parameters.
Therefore,
it
is
necessary
to
comprehensively
summarize
facing
corresponding
strategies
develop
roadmaps
development
high‐performance
anodes.
Herein,
failure
mechanisms
impacts
outlined.
Recent
progress
on
improving
stability
anode
summarized,
structurally
designed
anodes,
alloy
surface
modification,
electrolyte
optimization,
separator
design.
Finally,
this
review
provides
brilliant
insightful
perspectives
stable
promotes
large‐scale
application
AZIBs
in
power
grid
systems.
Journal of Materials Chemistry A,
Год журнала:
2022,
Номер
10(27), С. 14399 - 14410
Опубликована: Янв. 1, 2022
CaF
2
,
which
served
as
the
F-rich
artificial
interphase
on
Zn
anode
was
prepared
by
spin-coating
method.
The
layer
can
effectively
adjust
uniform
deposition
of
and
inhibit
corrosion
side
reactions
between
electrode
surface
electrolyte.
Advanced Materials,
Год журнала:
2023,
Номер
unknown, С. 2208630 - 2208630
Опубликована: Фев. 5, 2023
Aqueous
zinc-metal
batteries
have
attracted
extensive
attention
due
to
their
outstanding
merits
of
high
safety
and
low
cost.
However,
the
intrinsic
thermodynamic
instability
zinc
in
aqueous
electrolyte
inevitably
results
hydrogen
evolution,
consequent
generation
OH-
at
interface
will
dramatically
exacerbate
formation
dead
dendrites.
Herein,
a
dynamically
interfacial
pH-buffering
strategy
implemented
by
N-methylimidazole
(NMI)
additive
is
proposed
remove
detrimental
zinc/electrolyte
real-time,
thus
eliminating
accumulation
by-products
fundamentally.
Electrochemical
quartz
crystal
microbalance
molecular
dynamics
simulation
reveal
existence
an
absorption
layer
assembled
NMI
protonated
(NMIH+
),
which
acts
as
ion
pump
for
replenishing
with
protons
constantly.
Moreover,
situ
pH
detection
method
micro-sized
spatial
resolution
based
on
ultra-microelectrode
technology
developed
probe
evolution
diffusion
layer,
confirming
stabilized
chemical
environment
NMI-containing
electrolyte.
Accordingly,
NMI,
excellent
cumulative
plating
capacity
4.2
Ah
cm-2
ultrahigh
Coulombic
efficiency
99.74%
are
realized
electrodes.
Meanwhile,
NMI/NMIH+
buffer
can
accelerate
dissolution/deposition
process
MnO2
/Mn2+
cathode,
leading
enhanced
cycling
capacity.
Advanced Functional Materials,
Год журнала:
2022,
Номер
32(24)
Опубликована: Март 10, 2022
Abstract
Aqueous
Zn||vanadium
oxide
batteries
(ZVBs)
have
recently
received
considerable
attention
owing
to
their
high
capacity,
safety,
environmental
friendliness,
and
cost
effectiveness.
However,
the
limited
cycling
stability
caused
by
irreversible
dissolution
in
traditional
aqueous
electrolytes
still
restricts
further
application.
Herein,
a
novel
3
m
Zn(CF
SO
)
2
electrolyte
with
mixture
solvent
of
propylene
carbonate
(PC)
H
O
is
adopted
for
vanadium‐based
zinc‐ion
batteries.
With
manipulation
solvation
structure,
optimized
P20
(20%
PC
volume
ratio)
enables
super‐stable
performance
high‐capacity
retention
99.5%/97%
after
100/1000
cycles
at
0.1/5
A
g
−1
ambient
environment
Zn||NaV
8
·1.5H
Systematical
electrochemical
testing
characterizations
illustrate
addition
effectively
reduces
active
water
molecule
Zn
2+
‐solvent
cations
+
electrolyte,
thereby
suppressing
cathode
inserted
co‐inserted
during
discharge/charge
process.
Impressively,
also
enabled
present
specific
capacity
183/168
mAh
‐1
100%/100%
over
300/400
0.1/0.2
−
40
°
C,
thus
efficiently
broadening
practical
application
ZVB.
This
research
may
provide
promising
strategy
designing
high‐performance
Angewandte Chemie International Edition,
Год журнала:
2022,
Номер
61(35)
Опубликована: Июнь 14, 2022
Developing
cathode
materials
integrating
good
rate
performance
and
sufficient
cycle
life
is
the
key
to
commercialization
of
aqueous
zinc-ion
batteries.
The
hyperstable
Zn0.52
V2
O5-a
⋅1.8
H2
O
(ZVOH)
with
excellent
has
been
successfully
developed
via
an
in
situ
self-transformation
from
zinc-rich
Zn3
V3
O8
(ZVO)
this
study.
Different
common
synthetic
method
additional
Zn2+
pre-insertion,
ZVOH
obtained
insertion
structural
removal
excess
ZVO,
ensuring
lattice
structure
remains
relatively
intact
during
phase
transition
rendering
stabilities.
delivers
a
reversible
capacity
286.2
mAh
g-1
at
0.2
A
161.5
20
over
18
000
cycles
retention
95.4
%,
demonstrating
cyclic
stability.
We
also
provide
new
insights
on
self-optimization
Znx
(CF3
SO3
)y
(OH)2x-y
⋅n
byproducts
effect
mobility
by
theoretical
calculations
experimental
evidence.
Chemical Society Reviews,
Год журнала:
2024,
Номер
53(10), С. 4877 - 4925
Опубликована: Янв. 1, 2024
This
review
systematically
summarizes
various
redox
mechanisms
in
Zn-based
batteries
and
design
strategies
to
improve
their
electrochemical
performance,
which
provides
a
reference
for
future
development
of
high-performance
batteries.
