InfoMat,
Journal Year:
2024,
Volume and Issue:
6(11)
Published: Aug. 8, 2024
Abstract
Aqueous
zinc‐ion
batteries
(AZIBs)
have
garnered
significant
research
interest
as
promising
next‐generation
energy
storage
technologies
owing
to
their
affordability
and
high
level
of
safety.
However,
restricted
ionic
conductivity
at
subzero
temperatures,
along
with
dendrite
formation
subsequent
side
reactions,
unavoidably
hinder
the
implementation
grid‐scale
applications.
In
this
study,
a
novel
bimetallic
cation‐enhanced
gel
polymer
electrolyte
(Ni/Zn‐GPE)
was
engineered
address
these
issues.
The
Ni/Zn‐GPE
effectively
disrupted
hydrogen‐bonding
network
water,
resulting
in
reduction
freezing
point
electrolyte.
Consequently,
designed
demonstrates
an
impressive
28.70
mS
cm
−1
−20°C.
addition,
Ni
2+
creates
electrostatic
shielding
interphase
on
Zn
surface,
which
confines
sequential
nucleation
deposition
(002)
crystal
plane.
Moreover,
intrinsically
activation
plane
generated
dense
dendrite‐free
plating/stripping
morphology
resisted
reactions.
symmetrical
can
achieve
over
2700
hours
reversible
cycling
5
mA
−2
,
while
||
V
2
O
battery
retains
85.3%
capacity
after
1000
cycles
This
study
provides
insights
for
development
design
low‐temperature
batteries.
image
Dalton Transactions,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
Two
Ni/Co
polyoxometalate-MOF/graphene
oxide
composites
were
developed,
with
systematic
study
on
the
synergistic
effects
of
electrolyte
and
nitrate
concentrations
their
electrocatalytic
reduction
performance.
