Chemistry - An Asian Journal,
Год журнала:
2024,
Номер
20(2)
Опубликована: Ноя. 2, 2024
Abstract
Rechargeable
and
flexible
aqueous
batteries
(ABs)
have
emerged
as
one
of
promising
energy
devices
which
is
primarily
due
to
the
safety,
environmental
friendliness
economic
efficiency.
However,
because
freezing
behavior
electrolytes,
most
ABs
possess
poor
performance
when
working
temperature
drops
below
zero.
To
solve
this
problem,
a
gel
polymer
electrolyte
(GPE)
with
high
ionic
conductivity
(IC)
frost‐resistance
designed
for
Zn−Li
hybrid
by
biomass‐based
polymers
complex
consisting
carboxyl
modified
sodium
alginate
(SA)
zwitterionic
betaine
(BA).
Introducing
iminodiacetic
acid
enrich
−COOH
groups
along
SA
main
chains
could
improve
IC
prepared
GPEs
41.27
20.96
mS
cm
−1
at
20
−20
°C,
respectively.
At
discharge
capacity
resultant
cell
two
times
higher
than
that
liquid
electrolyte‐based
cell,
presents
retention
91.6
%
after
300
charge/discharge
cycles
1
C.
This
proposed
strategy
greatly
temperature,
expected
broaden
practical
application
in
wide
range
temperature.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 7, 2025
Abstract
The
widespread
application
of
aqueous
zinc‐ion
batteries
(AZIBs)
is
hindered
by
anode
dendrite
formation
and
side
reactions,
reducing
cycling
life
performance.
This
study
introduces
Bi‐Bi₂O₃‐loaded
carbon
nanofibers
(Bi‐Bi₂O₃@CNF)
with
hierarchical
hollow
structures
surface
grooves
fabricated
via
electrospinning,
thermal
treatment,
in
situ
growth.
Experimental
characterization
density
functional
theory
reveal
that
the
high
area
fibrous
network
Bi‐Bi₂O₃@CNF
enhance
electron
transport
electrolyte
distribution,
effectively
ohmic
resistance
concentration
polarization.
“Spatial
Effect”
provides
ample
space
for
uniform
Zn
deposition.
Additionally,
situ‐grown
Bi‐Bi₂O₃,
pyridinic
nitrogen,
pyrrolic
C─O─Bi
bonds
induce
strong
zinc
affinity
electronegativity,
generating
an
“Electrostatic
Confinement
amplifies
“spatial
effect”
into
a
“Dual‐Confinement
Effect.”
synergy
ensures
deposition,
suppresses
dendrites
mitigates
Compared
to
pure
anodes,
reduces
polarization
overpotential
17.6%,
increases
hydrogen
evolution
11.52%,
maintains
Coulombic
efficiency
98.8%
over
200
h.
In
full
cells,
Zn@Bi‐Bi₂O₃@CNF//MnO₂
achieves
73.0%
capacity
retention
after
1000
cycles
at
mA
g⁻¹.
work
promising
strategy
high‐efficiency,
durable,
safe
AZIBs
offers
valuable
insights
design
advanced
energy
storage
materials.
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 13, 2025
Rechargeable
aqueous
Zn-ion
batteries
are
renowned
for
their
safety,
cost-effectiveness,
environmental
friendliness,
and
high
capacity.
However,
critical
issues,
such
as
restricted
electrode
kinetics
uncontrolled
dendrite
growth
of
Zn
anodes,
have
hindered
practical
applications.
Here,
we
propose
a
gradient
solid-like
electrolyte
(GSLE)
to
enhance
the
overall
performance
anodes
batteries.
It
shows
room-temperature
conductivity
13.3
mS
cm-1
with
an
enhanced
Zn2+
transference
number
0.67.
With
its
negatively
charged
network,
GSLE
establishes
Zn2+-rich
region
at
Zn|electrolyte
interface,
thereby
boosting
interfacial
charge
transfer
accelerating
kinetics.
Moreover,
in
situ
ZnSe-containing
interphase
on
surface
during
cycling.
Such
effectively
guides
uniform
deposition
inhibits
side
reactions.
As
result,
symmetric
cells
using
demonstrate
stabilized
plating/stripping
cycling
over
1400
h
tolerate
current
15
mA
cm-2.
Furthermore,
assembled
vanadium-based
full
deliver
remarkable
capacity
125.4
mAh
g-1
4
A
achieve
90%
retention
after
1000
cycles.
New Journal of Chemistry,
Год журнала:
2025,
Номер
49(6), С. 2014 - 2033
Опубликована: Янв. 1, 2025
Zinc-ion
batteries
(ZIBs)
offer
safe,
low-cost,
high-capacity
energy
storage,
but
dendrite
growth,
hydrogen
evolution,
and
corrosion
limit
their
use.
This
paper
reviews
stability
strategies
research
directions.
Journal of Materials Informatics,
Год журнала:
2025,
Номер
5(2)
Опубликована: Фев. 27, 2025
Tuning
electrolyte
bulk
properties,
fundamentally
the
Zn-ion
solvation
structures,
is
key
to
addressing
degradation
issues
in
aqueous
batteries
(AZIBs).
The
common
practice
add
water-soluble
organics
as
a
cosolvent.
However,
comprehensive
fundamental
understanding
of
cosolvent
effect
on
properties
still
lacking.
In
this
work,
using
ethylene
glycol
(EG)
and
2M
ZnSO4
base
electrolyte,
we
report
from
computational
perspective
how
affects
such
conductivity
pH.
To
ensure
reliability
results,
have
used
experimental
ion
data
validate
our
computing
methods.
Further,
show
new
hybrid
models
that
encompass
H2O,
anion,
e.g.,
EG-Zn(H2O)52+
EG-Zn(H2O)42+-SO42-.
Based
these
cosolvent-involved
models,
pH
trending
has
been
successfully
explained.
Our
work
offers
insights
into
structures.
