Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 23, 2024
Although
the
catalytic
activity
is
heavily
reliant
on
electronic
structure
of
catalyst,
understanding
impact
electron
spin
regulation
electrocatalytic
performance
still
rarely
investigated.
This
work
presents
a
novel
approach
involving
single-atom
coordination
cobalt
(Co)
within
metalloporphyrin-based
three-dimensional
covalent
organic
frameworks
(3D-COFs)
to
facilitate
conversion
for
sodium-iodine
batteries.
The
state
Co
modulated
by
altering
oxidation
porphyrin-centered
Co,
achieving
optimal
catalysis
iodine
reduction.
Experimental
results
demonstrate
that
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(38)
Published: July 31, 2024
Abstract
Aqueous
zinc–iodine
batteries
(AZIBs)
are
highly
appealing
for
energy
requirements
owing
to
their
safety,
cost‐effectiveness,
and
scalability.
However,
the
inadequate
redox
kinetics
severe
shuttling
effect
of
polyiodide
ions
impede
commercial
viability.
Herein,
several
Zn‐MOF‐derived
porous
carbon
materials
designed,
further
preparation
iron–doped
(Fe–N–C,
M9)
with
varied
Fe
doping
contents
is
optimized
based
on
a
facile
self‐assembly/carbonization
approach.
M9,
atomic
coordinated
nitrogen
atoms,
employed
as
an
efficient
cathode
host
AZIBs.
Functional
modifications
hosts
involving
species
levels
investigated.
The
adsorption
tests,
in
situ
Raman
spectroscopy,
UV–vis
results
demonstrate
capability
charge‐discharge
mechanism
iodine
species.
Furthermore,
experimental
findings
theoretical
analyses
have
proven
that
conversion
enhanced
through
physicochemical
confinement
effect.
This
study
offers
basic
principles
strategic
design
single‐atom
dispersed
high‐performance
Flexible
soft–pack
battery
wearable
microbattery
applications
also
implications
future
long‐life
aqueous
designs.
Energy storage materials,
Journal Year:
2024,
Volume and Issue:
72, P. 103596 - 103596
Published: June 25, 2024
Zinc-based
batteries
are
gaining
prominence
as
promising
alternatives
to
lithium-ion
(LIBs)
in
the
pursuit
of
Net-Zero
goals,
owing
their
cost-effectiveness,
scalability,
and
reduced
resource
dependency.
Aqueous
rechargeable
zinc-iodine
(Zn-I2)
batteries,
particular,
emerging
an
enticing
choice
for
future
energy
storage
systems,
thanks
eco-friendly
nature,
impressive
theoretical
capacity,
energy/power
density.
Nevertheless,
several
challenges,
including
well-known
polyiodide
shuttling
phenomenon,
suboptimal
thermodynamic
stability,
issues
like
corrosion
dendrite
formation
on
Zn
metal
anodes,
impede
practical
implementation.
Tremendous
progress
has
been
achieved
circumvent
these
recent
years,
though
a
comprehensive
review
article
both
entry-level
experienced
researchers
is
still
lacking
up
date.
This
aims
at
discussing
fundamentals,
solutions
enable
understanding
electrochemistry
mechanisms,
systematically
summarizing
past,
present,
technologies
strategies
involving
iodine
cathode
design
modification,
interlayer
construction/separator
electrolytes
optimization,
anodes
protection.
Additionally,
based
achievements,
some
directions
efforts
developing
high-performance
Zn−I2
proposed
accelerate
commercial
applications.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(44)
Published: Aug. 6, 2024
Abstract
Aqueous
Zn–I
2
batteries
have
considerable
potential
owing
to
their
environmental
friendliness
and
high
safety.
However,
the
slow
iodine
conversion
kinetics
shuttle
effect
prevent
practical
applicability.
In
this
study,
a
series
of
Zn‐MOF‐74
rods
with
controllable
diameters
40–500
nm
are
facilely
prepared,
denoted
as
P1–P5.
A
size
confinement
strategy
derived
porous
carbon
hosts
is
proposed
suppress
formation
undesirable
species,
such
I
3
−
5
.
Moreover,
graphitization
degree
samples,
including
P2‐900,
P2‐1000,
P2‐1100,
play
critical
on
kinetics.
The
P2‐1000
sample
possesses
conductive
skeleton
abundant
mesopores,
which
improve
adsorption
ability
toward
species.
electrochemical
tests
in
situ
technology
reveal
mechanism
iodine.
As
result,
@P2‐1000
cathode
exhibits
superior
discharge
capacity
179.9
mA
h
g
−1
at
100
exceptional
long‐term
cycle
after
5000
cycles.
Furthermore,
soft
flexible
quasi‐solid‐state
capable
powering
devices,
promising
exhibit
tremendous
adaptability
realize
electronic
devices
various
scenarios.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 12, 2024
Abstract
Zinc–iodine
(Zn–I
2
)
batteries
are
promising,
low‐cost
and
safe
aqueous
rechargeable
energy
storage
devices.
An
iodide
shuttle‐induced
corrosion
poor
zinc
(Zn)
stripping/plating
often
result
in
a
limited
battery
lifetime,
urges
the
development
of
multifunctional
Zn
anodes.
To
overcome
these
problems,
here
Zn‐anode
is
demonstrated
with
shape‐programmability
uniform
morphology
along
low‐indexed
(002)
crystal
plane,
achieved
by
electrodepositing
on
nitinol
alloy
(nickel–titanium,
NiTi).
It
found
that
surface
oxide
layer
NiTi
supports
deposition
densely
packed
planar
film
formation
leads
high
resistance,
while
adopts
shape‐memory
function.
NiTi‐based
device
achieves
extremely
steady
performance,
benefiting
from
during
cycling,
whereas
Zn‐based
short‐circuits
due
to
dendritic
under
severe
corrosion.
also
flat‐shape‐programmed
flexible
pouch
cell
Zn–I
(SP‐ZIB),
which
performs
well
bent
mode,
recovers
its
original
flat
shape
at
elevated
temperature,
shows
consistent
performance
for
validated
cycles.
The
function
makes
this
advanced
flexibility
shape‐programmable
features.
This
study
represents
fresh
insight
using
smart
materials
as
features
next‐generation
Zn‐I
batteries.
ACS Applied Nano Materials,
Journal Year:
2025,
Volume and Issue:
8(4), P. 1991 - 1999
Published: Jan. 16, 2025
Zinc–iodine
(Zn–I2)
batteries
have
received
widespread
attention
due
to
their
higher
safety,
rich
resources,
and
eco-friendly
features
show
a
promising
potential
for
large-scale
energy
storage.
Nevertheless,
challenges
such
as
the
shuttle
effect
of
polyiodides
sluggish
redox
kinetics
iodine
species
during
charge
discharge
processes
hinder
development.
This
work
reports
an
effective
strategy
improve
electrochemical
performance
Zn–I2
through
size
engineering
nickel
nanoparticles
on
biomass
carbon.
In
situ
UV
in
Raman
spectroscopies
reveal
that
dual-template
enables
catalyst
provide
more
active
sites
adsorption
catalysis
species,
thereby
enhancing
capacity
accelerating
I–/I2
conversion
reaction.
The
is
also
significantly
inhibited.
Consequently,
with
size-reduced
host
cathode
exhibit
superior
rate
performance,
low
polarization,
long
cycle
life.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 20, 2025
Abstract
Zinc‐iodine
(Zn‐I
2
)
batteries
are
deemed
as
promising
next‐generation
energy
storage
devices
in
view
of
immanent
security
and
high
capacity.
Nevertheless,
their
applications
deteriorated
by
unruly
dendritic
Zn
growth,
severe
polyiodide
diffusion,
sluggish
iodine
redox
kinetics.
Herein,
MXene‐mediated
Janus
separators
with
heterogeneous
double‐sided
interfaces
designed
to
simultaneously
manipulate
deposition
accelerate
adsorption‐conversion
The
anode
side
is
composed
zincophilic
Cu‐modified
hollow
MXene
spheres,
which
not
only
decreases
nucleation
barrier
but
also
suppresses
dendrite
growth
homogenizing
electric
field
distribution
inducing
oriented
aspectant
dendrite‐free
between
the
separator
anode.
While
cathode
side,
consisting
iodophilic
Co‐modified
N‐doped
inhibits
shuttling
promotes
electrocatalytic
conversion
through
Co‐N‐C
sites.
Such
an
ingenious
engineering
achieves
a
durable
circulation
over
2900
h
for
Zn||Zn
symmetric
cells
brings
about
ultrahigh
capacity
274
mAh
g
−1
Zn‐I
well
ignorable
decay
(0.001%
per
circle)
after
20
000
cycles.
concept
design
integrating
interfacial
chemistry
regulation
physical
structure
optimization
this
work
provides
inspiration
constructing
advanced
exceptional
overall
performance.
