Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 21, 2024
Abstract
As
a
typical
conversion‐type
cathode
material,
CuS
has
shown
great
potential
in
the
field
of
rechargeable
magnesium
batteries
(RMBs)
due
to
its
excellent
energy
density,
stable
voltage
platforms,
and
low
cost.
However,
poor
phase
conversion
reversibility
cathodes
resulted
Coulombic
efficiency
short
cycling
life,
impeding
further
development.
Herein,
an
abundance
CS
heterointerfaces
is
meticulously
crafted
by
nanoparticles
anchored
on
rGO
nanosheets
(CuS@G).
The
out‐of‐plane
C─S
bonds
effectively
reduce
activation
sulfur
atoms
within
Cu‐S
tetrahedrons,
facilitating
formation
S─S
Cu₂S
crystal
structure
driving
reversible
between
during
charge/discharge
process.
Furthermore,
more
could
diminish
copper
ion
dissolution
induced
volume
expansion.
Consequently,
CuS@G
exhibits
one
most
remarkable
rate
performances
date
(160.5
mAh
g
−1
at
1
A
),
retaining
64.7%
capacity
after
1000
cycles.
Additionally,
durable
CuS@G||Mg
pouch
cell
successfully
assembled,
delivering
high
9.5
mAh.
These
fundamental
insights
provide
valuable
guidance
for
design
high‐performance
materials
next‐generation
RMBs.
The Journal of Physical Chemistry Letters,
Journal Year:
2025,
Volume and Issue:
16(6), P. 1415 - 1423
Published: Jan. 30, 2025
The
migration
of
Zn2+
ions
is
significantly
more
challenging
compared
to
that
Li+
within
the
same
crystalline
framework,
leading
poor
rate
performance
zinc-ion
batteries
(ZIBs).
Compared
Li+,
slower
vaguely
attributed
stronger
electrostatic
interaction
induced
by
Zn2+.
Herein,
rule
how
size
channel
and
affect
in
α-V2O5
has
been
systematically
investigated
first-principle
calculations.
It
found
expanding
layer
spacing
can
facilitate
migration.
Once
surpasses
a
certain
threshold,
further
expansion
does
not
lead
continued
reduction
barrier.
local
structure
distortions
caused
electron
small
polarons
would
decrease
size,
which
should
have
increased
energy
barrier
for
However,
interestingly,
barriers,
be
ion-polaron
attraction.
higher
activation
barriers
those
rationalized
specific
attraction
Moreover,
comparative
strength
polaron-ion
alkali
alkaline
earth
metal
unveiled.
Overall,
this
study
provides
theoretical
insights
into
role
on
ion
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 1, 2024
Abstract
In
recent
years,
aqueous
zinc
ion
batteries
(ZIBs)
with
ultra‐high
safety
and
environmental
friendliness
have
emerged
as
a
promising
candidates
for
energy
storage
conversion
devices.
However,
the
severe
side
reactions
dendrites
issues
discourage
practical
application
of
ZIBs.
Recently,
biopolymer‐based
gel
electrolytes
disclosed
large
potential
in
tackling
these
challenges
ZIBs,
numerous
advancements
reported.
Their
advantages
lie
suppressing
including
hydrogen
evolution
Zn
metal
anode
corrosion,
well
inhibiting
growth
dendrites.
This
review
comprehensively
examines
classification,
structures
properties
electrolytes,
focus
on
hydrogel
derived
from
various
natural
macromolecular
biopolymers,
along
brief
discussion
non‐hydrogel
using
ionic
liquids
or
organic
solutions
solvents.
Subsequently,
preparation
physical
chemical
methods
are
summarized.
Furthermore,
applications
ZIBs
diverse
cathodes
materials
introduced.
Finally,
it
highlights
benefits
excellent
electrochemical
performance
outlining
their
prospects
next
generation
proposing
future
perspectives.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 21, 2025
Aqueous
zinc
ion
batteries
(AZIBs)
are
promising
candidates
for
large-scale
energy
storage
systems
due
to
their
high
safety
and
low
cost.
Among
diverse
cathodes,
spinel
ZnV2O4
(ZVO)
becomes
more
prominent
thanks
its
capacity
long
cycling
life.
However,
the
slow
diffusion
kinetics,
vanadium
dissolution,
ambiguous
zinc-storage
mechanism
restrict
prospective
applications.
For
this,
herein,
unique
ZVO
flower-shaped
nano/micro-architectures
with
carbon
coating
(ZVO@C)
designed
enhance
active
electrode-electrolyte
sur-/interfaces
reduce
distance,
while
nano-carbon
shell
improves
electrical
conductivity
of
cathodes
inhibits
dissolution.
Furthermore,
essential
ZVO@C
is
first
clarified
that
irreversible
electrochemically-induced
phase
formation
ZnV3O8
Zn3(OH)2V2O7·2H2O
during
cycle,
rather
than
itself,
which
genuine
electroactive
phases
following
storage.
Theoretical
calculations
reveal
two
newly-formed
intrinsically
endowed
good
boosted
kinetics
reversible
co-(de)intercalation
Zn2+
H+.
The
optimized
shows
superior
stability
208.7
mAh
g-1
after
5000
cycles
even
at
10
A
g-1.
Essentially,
contribution
provides
in-depth
insights
intriguing
transition
involved
promotes
commercial
applications
vanadium-based
long-lifespan
AZIBs.
Green Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
Phthalimido
anchored
benzoquinone
is
selected
as
monomer
for
electropolymerization
to
fabricate
the
cathode
of
aqueous
ZIBs
with
ultralong
cycling
stability.
Advanced Energy Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 2, 2025
Abstract
Zinc‐ion
batteries
(ZIBs)
have
emerged
as
a
promising
energy
storage
solution
due
to
their
inherent
safety,
environmental
sustainability,
and
cost‐effectiveness.
Utilizing
water‐based
electrolytes,
ZIBs
eliminate
fire
risks
thermal
runaway
concerns,
making
them
ideal
for
large‐scale
systems.
The
high
theoretical
capacity,
low
cost,
abundance,
toxicity
of
zinc
further
enhance
its
suitability
grid‐scale
applications.
However,
conventional
current
collectors
such
graphite
foil
exhibit
limitations
in
scalability
mechanical
properties,
which
make
unsuitable
industrial
roll‐to‐roll
manufacturing
processes.
This
study
addresses
these
by
exploring
graphene‐coated
stainless
steel
an
alternative
collector.
Here,
graphene
coating
followed
heat
treatment
remove
the
surface
oxides
improves
conductivity
corrosion
resistance
material.
As
result,
fabricated
ZIB
exhibits
specific
capacities
1.90
0.91
mAh
cm
−2
at
densities
0.3
2.0
C,
respectively,
demonstrate
remarkable
long
cycle
life
with
capacity
retention
88.7%
up
1500
cycles
density
1.0
despite
electrode
loading
13.27
mg
.
innovation
enhances
electrochemical
performance
cycling
stability,
thereby
advancing
safe,
scalable,
high‐performance
solution.