Recent research progress of MXenes and MXene composites employed in Zn anodes for aqueous Zn ion batteries
Mengqi Zhu,
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W. Ni,
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Xuran Li
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et al.
Journal of Energy Storage,
Journal Year:
2025,
Volume and Issue:
127, P. 117141 - 117141
Published: May 22, 2025
Language: Английский
Laser‐Induced Ultrafine Cu‐Anchored 3D CNT‐rGO Carrier for Flexible and Durable Zinc‐Iodine Micro‐Batteries
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 28, 2025
Abstract
Three‐dimensional
(3D)
carbon
materials
are
often
used
as
carriers
for
anchoring
iodine
in
zinc‐iodine
batteries
(ZIBs).
However,
the
physical
stacking
of
during
electrode
assembly
process,
weaker
interactions
between
non‐polar
and
species,
scarcity
catalytic
sites
conversion
led
to
a
reduced
activity
redox
reaction,
which
fails
completely
inhibit
shuttling
species.
Here,
3D
ultrafine
Cu‐anchored
CNT‐rGO
(3D
Cu@CNT‐rGO)
with
interconnected
structures
prepared
using
simple
laser‐induced
reduction
strategy.
The
microporous
structure
excellent
electrical
conductivity
Cu@CNT‐rGO
make
it
an
ideal
host
iodine.
Ultrafine
Cu
nanoparticles
introduce
catalysts
accelerate
kinetics,
efficiently
catalyze
iodine/polyiodide
conversion,
polyiodide
shuttling,
enhance
electrochemical
performance
ZIBs.
fabricated
zinc‐iodide
micro‐batteries
(ZIMBs)
delivers
high
specific
area
capacity
1.29
mAh
cm
−2
,
energy
density
(1.55
mWh
)
power
(33.58
mW
well
cyclin
stability
(80%
retention
after
4000
cycles).
Meanwhile,
ZIMBs
have
mechanical
flexibility
great
potential
application
field
integrated,
miniaturized
flexible
electronic
devices.
Language: Английский
Insights on Polyidide Shuttling of Zn-I2 Batteries by I3‒/I‒ Electrolytes Based on the Dual-Ion Battery System
Nanomaterials,
Journal Year:
2025,
Volume and Issue:
15(10), P. 738 - 738
Published: May 14, 2025
The
rechargeable
zinc-iodine
(Zn-I2)
battery
is
a
promising
energy
storage
system
due
to
its
high
theoretical
capacity,
low
cost,
and
safety.
So
far,
most
researchers
agree
that
the
poor
electrical
conductivity
of
iodine
shuttling
polyiodide
lead
rapid
decrease
in
capacity
coulombic
efficiency
(CE)
during
cycling,
which
seriously
hinders
their
further
development
application.
Herein,
understand
polyidide
effects
Zn-I2
battery,
we
utilize
I3-/I-
electrolytes
as
active
source
coupled
with
carbon
cloth,
devoid-of-iodine
(I2)
loading
cathode,
simulate
behavior
based
on
concept
dual-ion
system.
Experiments
show
these
batteries
exhibit
specific
0.24
mAh·cm-2
at
1.0
A·cm-2
0.2
20
A·cm-2,
corresponding
1.0~1.3
mg
mass
I2,
2I-/I2
redox
couple
(221
mAh·g-1).
It
noteworthy
inclusion
enhances
electrochemical
activity,
advantageous
for
performance;
however,
it
limited
polyiodine
reduction
Zn
surface
(Zn
+
I3-
→
3I-
Zn2+).
Language: Английский
Ultrafast Plasma‐Assisted Synthesis of Bio‐Inspired Bi‐Functional Interlayer on Zinc Anode with Enhanced Lewis‐Base Sites for Long‐Life Zinc‐Iodine Batteries
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 21, 2025
Abstract
Aqueous
zinc‐iodine
batteries
hold
significant
potential
for
large‐scale
energy
storage,
but
are
hindered
by
the
challenges
such
as
polyiodide‐induced
corrosion,
dendrite
formation,
and
other
side
reactions
at
zinc
anode.
Inspired
ion‐selective
functionality
of
plant
roots,
a
ZnSn(OH)₆
(ZSH)
interlayer
with
rich
Lewis‐base
sites
is
designed
to
protect
Zn
Density
function
theory
(DFT)
calculations
predict
that
ZSH
layer
can
act
bi‐functional
which
selectively
adsorbs
2+
while
repels
I₃
−
.
Guided
calculations,
rapidly
constructed
on
anode
within
2
min
using
dielectric
barrier
discharge
(DBD)
plasma‐assisted
synthesis
method.
As
expected,
DBD‐ZSH@Zn
demonstrates
over
5000
h
stable
cycling
5
mA
cm
enables
Zn–I₂
operate
138
000
cycles
10
A
g
−1
It
evidenced
DBD‐ZSH
more
surface‐exposed
facilitate
⁺
desolvation
accelerate
transport,
leading
dendrite‐free
deposition.
also
from
corrosion
SO₄
/I₃
anions,
thereby
effectively
mitigating
reactions.
The
proposed
design
strategy
protective
developed
DBD
method
will
be
helpful
development
high‐performance
aqueous
zinc‐based
batteries.
Language: Английский