Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 26, 2024
Abstract
As
a
promising
power
supplier,
flexible
aqueous
zinc
ion
batteries
(AZIBs)
have
drawn
great
attention
and
been
demonstrated
potential
applications
in
portable
electronic
devices,
yet
their
capacity,
stability,
rate
performance
are
severely
limited
by
cathode
materials.
Herein,
spontaneous
encapsulation
situ
phase
transformation
strategy
is
proposed
for
the
construction
of
heterostructured
amorphous
vanadium
oxide@carbon/graphene
(A‐VO
x
@C/G)
nanoplates
as
highly
stable
efficient
materials
Zn
2+
storage.
In
this
design,
A‐VO
provides
abundant
active
sites
with
rapid
diffusion
channels
robust
tolerance
against
insertion/extraction,
while
N‐doped
carbon
interlaced
graphene
network
ensure
electron
transfer.
The
mechanisms
respectively
during
electrochemical
amorphization
charge
storage
cycling
investigated
detail.
as‐prepared
@C/G
achieves
an
outstanding
429
mAh
g
−1
at
0.5
A
,
73%
retained
20
(315
),
excellent
stability
over
2000
cycles
(91%
retention).
Moreover,
quasi‐solid‐state
AZIBs
assembled
from
exhibit
high
flexibility
can
sustain
large
mechanical
deformation
without
degradation.
It
believed
that
study
guideline
toward
designing
high‐performance
through
structure
optimization.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 7, 2025
Abstract
One
of
the
important
challenges
in
advancing
aqueous
zinc‐ion
batteries
is
separator,
which
crucial
for
promoting
stable
electrode‐electrolyte
interface
and
energy
density
battery.
Herein,
this
study
introduces
a
metal
ion‐activated
air‐laid
paper
(ALP
Act)
as
an
alternative
traditional
glass
fiber
separators
with
big
thickness
weight.
Notably,
sustainable
release
ions
facilitates
situ
engineering,
thus
creating
surface
layer
high
zinc
affinity
to
promote
uniform
migration
deposition
ions.
By
continuously
adjusting
interface,
behaviors
dendrite
growth
side
reactions
are
effectively
suppressed.
Consequently,
ALP
Act
continuous
metal‐ion
function
enables
anode
attain
21‐fold
increase
running
life
beyond
3700
h
compared
conventional
separator
at
1
mA
cm
−2
l
mAh
.
The
Zn||Cu
battery
also
achieves
remarkable
Coulombic
efficiency
99.18%
2000
(1
/1
).
assembled
Zn||NVO
exhibits
lifespan
3000
cycles
charge
discharge
3
A
g
−1
This
research
offers
new
avenue
achieve
low‐cost,
long‐lasting,
energy‐dense
batteries.
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 25, 2025
Abstract
Aqueous
zinc‐ion
batteries
(AZIBs)
are
emerging
as
a
promising
energy
storage
technique
supplementary
to
Li‐ion
batteries,
attracting
much
research
attention
owing
their
intrinsic
safety,
cost
economy,
and
environmental
friendliness.
However,
densities
for
AZIBs
still
do
not
fulfill
practical
requirements
because
of
the
low
specific
areal
capacity,
limited
working
potential,
excessive
negative‐to‐positive
electrode
capacity
(N/P)
ratio.
In
this
review,
comprehensive
overview
basic
major
challenges
achieving
high‐energy‐density
is
provided.
Following
that,
recent
progress
in
optimization
each
component
overall
configuration
summarized,
crucial
design
principles
discussed.
Apart
from
conventional
emphasis
on
part,
especially
cathode
materials,
separately,
discussion
about
synergistic
interactions
among
all
components
conducted.
Finally,
outlook
direction
given
provide
valuable
guidance
further
holistic
development
aqueous
batteries.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 23, 2025
Abstract
Aqueous
zinc‐ion
batteries
(AZIBs)
are
emerging
as
sustainable
energy
storage
systems,
yet
their
practical
application
is
challenged
by
issues
such
dendrite
growth
and
hydrogen
evolution.
A
critical
factor
in
enhancing
the
performance
of
AZIBs
development
hydrogel
electrolytes
(HEs)
which
offer
reduced
free
water,
thereby
mitigating
side
reactions
preventing
leakage.
However,
achieving
a
balance
between
water
maintaining
high
ionic
conductivity
challenging.
Herein,
sulfonate‐modified
covalent
organic
framework
(COF‐BSO
3
Zn)
designed
via
facile
method
intergated
it
into
polyacrylamide
(PAM)
to
form
PAM/COF‐BSO
Zn
(PAM/CBZn)
HEs.
The
COF‐BSO
exhibits
enhanced
aqueous
dispersibility
significantly
improved
adsorption
capacity
for
2+
.
PAM/CBZn
electrolyte
possesses
ultrahigh
(64.43
mS
cm
−1
)
excellent
transference
number
(0.84)
due
ordered
porous
structure
COF‐BSO3
within
hydrogel,
provides
channels
efficient
transport.
Besides,
sulfonate
groups
can
regulate
solvation
structure,
contributing
uniform
deposition
inhibiting
reactions.
Electrochemical
tests
demonstrate
stable
cycling
over
1800
h
with
minimal
polarization
symmetrical
cells.
This
work
innovatively
highlights
new
direction
tailoring
microstructures
functional
HEs
enhance
AZIBs,
showing
great
potential
toward
next‐generation
systems.
