ACS Sustainable Chemistry & Engineering,
Journal Year:
2024,
Volume and Issue:
12(37), P. 13848 - 13860
Published: Aug. 29, 2024
Ammonium
vanadate
(NVO)
is
regarded
as
one
of
the
most
promising
cathodes
for
aqueous
zinc-ion
batteries
(AZIBs)
by
virtue
its
favorable
theoretical
capacity
and
comparatively
stable
layered
structure.
Nevertheless,
crowded
NH4+
cation
in
interlayer
would
partially
occupy
transfer
routes
Zn2+,
strong
electrostatic
interaction
contributed
excessive
further
lower
mobility
thus
resulting
sluggish
kinetics
Zn2+
inferior
rate
performances.
Herein,
cation-modulated
engineering
proposed
achieved
via
a
facile
thermal-treatment
process.
By
modulating
number
cations,
spacing
NH4V3O8
significantly
broadened
migration
barrier
effectively
reduced.
As
result,
cathode
with
moderate
removal
exhibits
375
mAh
g–1
at
2
A
g–1,
while
∼363
could
be
maintained
after
1000
cycles,
corresponding
to
superior
retention
∼97%,
suggesting
boosted
electrochemical
properties
engineering.
Moreover,
related
ex-situ
characterizations
substantiate
Zn2+/H2O
co-intercalation
mechanism
NVO
cathode.
This
work
sheds
light
on
potential
cation-modulation
strategy
accelerating
zinc-ions
improving
ammonium
vanadate-based
broadens
application
potentials
vanadium-based
rechargeable
AZIBs.
ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(9), P. 7311 - 7323
Published: Feb. 26, 2024
Rechargeable
aqueous
zinc-ion
batteries
(AZIBs)
have
been
highly
desired
due
to
their
low
cost,
intrinsic
safety,
environmental
friendliness,
and
great
potential
in
large-scale
power
storage
systems.
However,
practical
applications
are
impeded
by
unstable
long-term
electrochemical
performances
induced
microstructure
degradation
of
the
cathode
material,
hydrogen
evolution
reaction
electrolyte,
dendritic
growth
on
zinc
anode
upon
cycling.
In
this
work,
rubidium
cations
(Rb
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(31)
Published: June 4, 2024
Abstract
In
advancing
aqueous
zinc‐ion
batteries
(AZIBs)
toward
commercial
viability,
vanadium
(V)‐based
cathodes
are
pivotal,
offering
broad
redox
ranges,
and
compatibility
with
water's
electrochemical
limits.
Despite
their
great
potentials,
V‐based
face
challenges
in
transitioning
from
lab
to
commercialization.
Defect
engineering
is
exploited
as
a
pivotal
technique
that
endows
the
unexpected
physical
chemical
properties
break
intrinsic
bottleneck
and,
turn,
enhance
performances.
This
review
delves
into
role
of
defect
on
materials,
underscoring
its
potential
mitigating
critical
challenges.
It
starts
by
encapsulating
current
characteristics
AZIBs.
Research
efforts
related
various
defects,
such
oxygen
vacancies,
cation
cationic
doping,
anionic
water
intercalation,
lattice
disorders/amorphization,
then
rationalized
discussed.
The
fabrication
characterization
techniques
also
summarized.
By
integrating
conclusions
existing
works
tailoring
strategies,
few
perspectives
provided
for
systematically
employing
pave
way
more
efficient
transition
these
promising
materials
laboratory
breakthroughs
commercially
viable
energy
storage
solutions.
Energy & Environmental Science,
Journal Year:
2024,
Volume and Issue:
17(12), P. 4090 - 4103
Published: Jan. 1, 2024
The
major
challenges
of
vanadium-based
layered
materials
are
their
dissolution
tendency
and
the
instability
bulk-phase
structure,
resulting
in
unsatisfactory
cyclability,
particularly
at
lower
current
densities.
Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: May 9, 2024
Abstract
Introducing
N
atoms
in
vanadium
oxides
(VO
x
)
of
aqueous
Zn‐ion
batteries
(ZIBs)
can
reduce
their
bandgap
energy
and
enhance
electronic
conductivity,
thereby
promoting
the
diffusion
Zn
2+
.
The
close‐packed
oxynitride
(VON)
generated
often
necessitates
intercalation
water
molecules
for
restructuring,
rendering
it
more
conducive
zinc
ion
intercalation.
However,
its
dense
structure
causes
structural
strain
formation
by‐products
during
this
process,
resulting
decreased
electrochemical
performance.
Herein,
carbon‐coated
porous
V
2
O
3
/VN
nanosheets
(p‐VON@C)
are
constructed
by
annealing
metal‐organic
framework
an
ammonia‐contained
environment.
designed
p‐VON@C
efficiently
converted
to
low‐crystalline
hydrated
N‐doped
VO
subsequent
activation
while
maintaining
stability.
This
is
because
heterojunction
abundant
oxygen
vacancies
alleviate
molecule
intercalation,
accelerate
rate.
Carbon
coating
beneficial
prevent
from
sliding
or
falling
off
cycling
process.
Profiting
these
advantages,
activated
cathode
delivers
a
high
specific
capacity
518
mAh
g
−1
at
0.2
A
maintains
retention
rate
80.9%
after
2000
cycles
10
work
provides
pathway
designing
high‐quality
ZIB
cathodes.
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(31), P. 40903 - 40913
Published: July 28, 2024
VO2
with
its
special
tunnel
structure
and
high
theoretical
capacity
is
an
ideal
candidate
for
cathode
materials
aqueous
zinc-ion
batteries
(ZIBs).
However,
the
slow
kinetics
structural
instability
due
to
strong
electrostatic
interactions
between
host
of
Zn2+
hinder
application.
Defect
engineering
a
well-recognized
strategy
improving
intrinsic
ion-electron
dynamics
stability
this
material.
preparation
oxygen
vacancies
poses
significant
difficulties,
it
challenging
control
their
concentration
effectively.
Excessive
or
insufficient
vacancy
can
have
negative
effect
on
Herein,
we
propose
electrode
controlled
prepared
in
situ
carbon
nanofibers
(CNF)
by
simple,
one-step
hydrothermal
process
(Ov-VO2@CNF).
This
method
balance
adsorption
energy
migration
barrier
easily,
maximized
while
minimizing
barrier.
Notably,
Ov2-VO2@CNF
delivered
specific
(over
450
mAh
g–1
at
0.1
A
g–1)
excellent
cycle
(318
5
after
2000
cycles
retention
85%).
rational
design
precisely
regulated
defect
provides
way
obtain
advanced
comprehensive
properties.
Advanced Energy Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 2, 2025
Abstract
Vanadium‐based
cathode
materials
for
aqueous
zinc‐ion
batteries
(AZIBs)
have
attracted
much
attention
in
large‐scale
energy
storage
devices
yet
their
unsatisfactory
cyclic
stability
and
slow
diffusion
rate
of
Zn
2+
ions
during
insertion
extraction
hinder
further
commercial
applications.
Therefore,
the
development
vanadium‐based
with
stable
crystal
structures
fast
remains
challenging.
Herein,
Na
2
CaV
4
O
12
(NCVO)
nanowires
are
reported
as
a
promising
excellent
electrochemical
performance
AZIBs,
simultaneously
rendering
high
specific
capacity
(443.2
mAh
g
−1
at
0.1
A
)
average
voltage
plateau
(0.91
V)
impressive
density
(403.3
Wh
kg
power
(1533
W
).
As
NCVO
features
unique
open
structure
alternately
arranged
inactive
layers
([NaO
6
]
[CaO
8
polyhedra)
active
([VO
tetrahedra),
expansion
[VO
tetrahedra
is
well
balanced
by
contraction
layer,
thus
enabling
remarkable
long‐term
cycling
(91.9%
80%
retention
after
5000
10
000
cycles
,
respectively).
With
electrochromic
property
cathode,
AZIB
can
be
used
adaptive
camouflage
under
range
scenarios,
shedding
light
on
future
high‐performance
cathodes
AZIBs.
