Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(49)
Published: Aug. 6, 2024
Abstract
Attracted
by
the
high
specific
capacity
and
energy
density,
transition
metal‐sulfides
exhibit
great
application
potential
as
sodium‐ion
batteries
anode,
but
still
suffer
from
uncontrolled
separation
of
M/S
phase
inferior
conductivity.
Herein,
flower‐like
Fe
1‐x
S@Sb@C
(FF)
is
rationally
tailored,
accompanied
double‐layer
heterojunctions
C–S–Sb/Sb–S–Fe
“bridge”
bonds.
Meanwhile,
bimetallic
phases/boundary
defects
built‐in
electric
fields
are
formed
with
a
strong
electronic
coupling
effect,
effectively
alleviating
(Fe/Sb
S),
significantly
enhancing
ion/e
−
As
expected,
FF
delivers
an
ultra‐fast
sodium‐ions
storage
rate
436.5/334.3
mAh
g
−1
even
at
10.0/20.0
A
.
When
operation
temperature
lowered
to
‐5
°C,
reversible
can
remain
≈349.7
Assisted
detailed
kinetic
analysis
theoretical
calculations,
their
ion‐storage
abilities
mainly
derive
improved
interfacial
Na
+
/e
transfer
surface/near‐surface
redox
behaviors.
Moreover,
reassembling
evolution
active
phases
revealed
in/ex
situ
techniques,
further
demonstrating
stable
adsorption/anchoring
intermediate
reaction
products
Fe/Sb–S
on
heterointerface,
accompanying
conversion‐alloying
reaction.
Given
this,
this
interesting
work
anticipated
offer
in‐depth
insight
into
fading
mechanism,
effective
strategy
design
metal‐sulfur
anodes
for
advanced
systems.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 25, 2025
Abstract
The
electrostatic
interaction
between
zinc
ions
and
the
host
structure
significantly
limits
practicality
of
vanadium‐based
cathodes
in
aqueous
zinc‐ion
batteries
(AZIBs).
Herein,
an
anion
doping
strategy
is
demonstrated
to
mitigate
resistance
steric
hindrance
during
ion
insertion
by
incorporating
iodine
atoms
into
lattice
cathode
material,
Na
2
V
6
O
16
·3H
O.
Iodine
reduces
adsorption
energy
at
most
stable
site,
thereby
weakening
Zn
2+
‐host
lowering
diffusion
barrier,
resulting
a
one‐order‐of‐magnitude
increase
coefficient.
Moreover,
large
atomic
size
expands
lattice,
creating
ample
space
for
increased
storage
capacity,
further
supported
introduced
oxygen
vacancies.
As
result,
iodine‐doped
achieves
impressive
specific
capacity
528.8
mAh
g
−1
current
density
0.5
A
,
retains
262
after
12,000
cycles
high
rate
10
.
This
work
provides
new
insights
design
high‐performance
materials
AZIBs.
Nature Communications,
Journal Year:
2025,
Volume and Issue:
16(1)
Published: March 11, 2025
The
recycling
of
spent
lithium-ion
batteries
can
effectively
mitigate
the
environmental
and
resource
challenges
arising
from
escalating
generation
battery
waste
soaring
demand
for
metals.
existing
mixing-then-separating
process
is
confronted
with
high
entropy-increasing
procedures,
including
crushing
leaching,
which
result
in
irreversible
entropy
production
due
to
decrease
material
orderliness
or
heavy
chemical
consumption,
thereby
hindering
its
thermodynamic
efficiency
economic
viability
entire
process.
Herein,
we
propose
a
galvanic
leaching
strategy
that
leverages
self-assembly
LiNi0.6Co0.2Mn0.2O2
particles
their
inherent
aluminium
foil
current
collectors
batteries,
creating
primary
cell
system
capable
recovering
metals
without
pre-crushing
additional
reductants.
Under
theoretical
potential
difference
up
3.84
V,
electrons
flow
charge
aggregation
achieve
valence
state
reduction,
crystal
phase
transition
coordination
environment
change
hard-to-dissolve
metal
components,
contributing
over
90%
recovery
nearly
30-fold
increase
kinetics.
Environmental-economic
assessments
further
indicate
this
reduces
energy
consumption
carbon
emissions
by
11.36%-21.10%
5.08%-23.18%,
respectively,
compared
conventional
metallurgical
methods,
while
enhancing
benefits
21.14%-49.18%.
methods
face
problems.
Here,
authors
recover
mixing
reductants,
Advanced Energy Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 26, 2025
Abstract
Sodium‐ion
batteries
are
applied
to
cold‐resistant
energy
storage
hindered
by
phase
transitions
and
sluggish
Na
+
migration
of
traditional
carbonate‐based
electrolytes
at
low
temperatures.
The
desolvation
is
a
crucial
step
in
impeding
the
transport
,
which
primarily
attributes
robust
solvent
coordination
.
Herein,
low‐temperature
adaptive
electrolyte
with
an
ultraweakly
coordinated
1,3‐dioxolane
(DOL)
designed
for
constructing
anion‐rich
solvation
structure
diglyme
(G2)‐based
electrolyte.
electronegativity
oxygen
atoms
G2
attenuated
dipole‐dipole
interaction
between
DOL
G2.
As
temperature
drops,
weakened
‒O
(G2)
leads
increased
anionic
less
coordination,
facilitating
This
anionic‐enhanced
contributes
formation
stable
solid
interface
hard
carbon
(HC)
anode,
accelerates
diminishing
voltage
polarization
Consequently,
HC
anode
can
retain
high
capacity
203.9
mAh
g
‒1
(1
C)
‒50
°C,
pouch
cell
composed
HC||Na
3
V
2
(PO
4
)
‒30
°C
achieves
retention
92.43%
after
100
cycles
0.1
C.
strategy
guides
design
ultra‐low
broadens
range
applications
sodium‐ion
batteries.
