Vanadium-based
materials,
which
offer
multiple
oxidation
states
and
rich
redox
reactions
in
zinc-ion
batteries
(ZIBs),
have
gained
substantial
attention.
However,
achieving
green
efficient
preparation
of
vanadium
oxides-based
materials
featured
with
a
controlled
content
different
heterovalent
remains
significant
challenge.
Herein,
vanadium-supramolecular
flower-shaped
material
(VSF)
was
prepared
using
NH4VO3
as
metal
center
hexamethylenetetramine
organic
ligand
aqueous
solution.
The
optimal
ratio
(PVSF)
after
controlling
VSF
presintering
is
2/1
(V5+/V4+).
Employing
PVSF-2/1
cathode
ZIBs
can
achieve
high
specific
capacity
398.9
mAh
g–1
at
0.2
A
g–1,
increased
by
3.5
times
compared
that
pure
VO2
V2O5,
respectively.
After
2000
cycles,
it
still
delivers
225
5.0
g–1.
Zn∥PVSF-2/1
pouch
cells
were
assembled
satisfactory
339
current
excellent
performance
ascribed
to
regulation
coordinated
promotion
states.
structural
pathways
corresponding
V5+
act
Zn2+
transport
channels
increase
capability.
V4+
cause
charge
density
distribution
the
V-O
lattice
layer
provide
abundant
active
sites
for
adsorption/desorption
process
Zn2+.
Chemical Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
Hydrogen
bond
chemistry
in
a
boron
nitride-polyacrylonitrile
separator
is
elucidated
through
situ
detections
with
its
effect
on
Zn
2+
desolvation
and
ion
transport,
providing
aqueous
zinc-ion
batteries
improved
electrochemical
performance.
ACS Nano,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 6, 2025
Zinc-ion
secondary
batteries
have
been
competitive
candidates
since
the
"post-lithium-ion"
era
for
grid-scale
energy
storage,
owing
to
their
plausible
security,
high
theoretical
capacity,
plentiful
resources,
and
environment
friendliness.
However,
many
encumbrances
like
notorious
parasitic
reactions
Zn
dendrite
growth
hinder
development
of
zinc-ion
remarkably.
Faced
with
these
challenges,
eutectic
electrolytes
aroused
notable
attention
by
virtue
feasible
synthesis
tunability.
This
review
discusses
definition
advanced
functionalities
in
detail
divides
them
into
nonaqueous,
aqueous,
solid-state
regard
state
component
electrolytes.
In
particular,
corresponding
chemistry
concerning
solvation
structure
regulation,
electric
double
layer
(EDL)
structure,
solid-electrolyte
interface
(SEI)
charge/ion
transport
mechanism
is
systematically
elucidated
a
deeper
understanding
Moreover,
remaining
limitations
further
are
discussed
electrolyte
design
extended
applications.
Nano Letters,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 10, 2025
Zinc
metal
is
an
attractive
anode
material
of
aqueous
batteries,
but
its
practical
use
persistently
hampered
by
irregular
zinc
electrodeposition/dissolution
and
parasitic
side
reactions.
Here
we
report
engineering
copper-zinc
alloy
with
a
composition-
structure-gradient
nanoporous
architecture
as
effective
strategy
to
regulate
high-efficiency
dendrite-free
for
high-performance
zinc-ion
batteries.
The
dual-gradient
electrodes
not
only
guarantee
electron
ion
transport
pathways
work
host
materials
abundant
zincophilic
sites
guide
nucleation
deposition,
enabling
highly
reversible
plating/stripping
behaviors
low
stable
voltage
polarizations
at
various
current
densities
ultralong
lifespan
>6700
h.
When
assembled
carbon
cloth-supported
ZnxV2O5
cathode
material,
these
outstanding
electrochemical
properties
allow
zinc-metal
battery
full
cells
show
exceptional
rate
capability
excellent
stability.
capacity
retained
∼95%
after
5000
cycles
5
A
g-1,
along
Coulombic
efficiency
∼99.5%.
Nano Letters,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 18, 2024
Highly
stable
aqueous
Zn-ion
batteries
are
of
great
importance
for
commercial
applications.
The
challenging
issues
interfacial
side
reactions
and
rampant
dendrite
growth
cause
short
circuit
premature
failure
batteries.
Herein,
a
hydrated
deep
eutectic
electrolyte
is
formulated
to
tackle
such
problems,
which
adopts
1,3-propanediol
as
cosolvent.
1,3-Propanediol
molecules
can
enter
into
the
Zn
Advanced Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 5, 2024
Abstract
Aqueous
zinc‐iodine
(Zn‐I
2
)
batteries
are
promising
energy
storage
devices;
however,
the
conventional
single‐electron
reaction
potential
and
density
of
iodine
cathode
inadequate
for
practical
applications.
Activation
high‐valence
reactions
has
evoked
a
compelling
direction
to
developing
high‐voltage
batteries.
Herein,
ethylene
glycol
(EG)
is
proposed
as
co‐solvent
in
water‐in‐deep
eutectic
solvent
(WiDES)
electrolyte,
enabling
significant
utilization
two‐electron‐transfer
I
+
/I
0
−
facilitating
an
additional
reversibility
Cl
/Cl
redox
reaction.
Spectroscopic
characterizations
calculations
analyses
reveal
that
EG
integrates
into
Zn
2+
solvation
structure
hydrogen‐bond
donor,
competitively
binding
O
atoms
H
O,
which
triggers
transition
from
water‐rich
water‐poor
clusters
,
effectively
disrupting
network.
Consequently,
aqueous
Zn‐I
cell
achieves
exceptional
capacity
987
mAh
g
I2
−1
with
1278
Wh
kg
marking
enhancement
≈300
compared
electrolyte
devoid
EG,
enhancing
Coulombic
efficiency
(CE)
68.2%
98.7%.
Moreover,
pouch
exhibits
3.72
cm
−2
4.52
mWh
exhibiting
robust
cycling
stability.
Overall,
this
work
contributes
further
development
high‐capacity
Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 30, 2024
Aqueous
zinc-ion
batteries
(AZIBs)
stand
out
among
many
energy
storage
systems
due
to
their
merits,
and
it's
expected
become
an
alternative
the
prevailing
alkali
metal
ion
batteries.
Nevertheless,
cumbersome
manufacturing
process
high
cost
of
conventional
separators
make
them
unfavorable
for
large-scale
applications.
Herein,
inspired
by
unique
nature
cellulose
ZrO
