ChemSusChem,
Journal Year:
2024,
Volume and Issue:
17(14)
Published: March 5, 2024
The
pursuit
of
efficient
host
materials
to
address
the
sluggish
redox
kinetics
sulfur
species
has
been
a
longstanding
challenge
in
advancing
practical
application
lithium-sulfur
batteries.
In
this
study,
amorphous
carbon
layer
loaded
with
ultrafine
CoP
nanoparticles
prepared
by
one-step
situ
carbonization/phosphating
method
enhance
inhibition
2D
black
phosphorus
(BP)
on
LiPSs
shuttle.
coating
facilitates
accelerated
electron/ion
transport,
enabling
active
involvement
BP
conversion
soluble
lithium
polysulfides
(LiPSs).
Concurrently,
ultra-fine
chemical
anchoring
ability
and
introduce
additional
catalytic
sites.
As
result,
S@BP@C-CoP
electrodes
demonstrate
exemplary
cycling
stability
(with
minimal
capacity
decay
0.054
%
over
500
cycles
at
1
C)
superior
rate
performance
(607.1
mAh
g
Advanced Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 16, 2024
The
"shuttle
effect"
issue
severely
hinders
the
practical
application
of
lithium-sulfur
(Li-S)
batteries,
which
is
primarily
caused
by
significant
accumulation
lithium
polysulfides
in
electrolyte.
Designing
effective
catalysts
highly
desired
for
enhancing
polysulfide
conversion
to
address
above
issue.
Here,
one-step
flash-Joule-heating
route
employed
synthesize
a
W-W
Advanced Energy Materials,
Journal Year:
2023,
Volume and Issue:
13(48)
Published: Nov. 12, 2023
Abstract
Lithium
metal
anodes
(LMAs)
offer
substantial
promise
for
high‐energy‐density
rechargeable
batteries,
but
managing
the
complex
electrolyte–anode
interface
is
a
challenge.
Herein,
sustainable
dual‐layered
(SDI)
protected
Li
anode
developed
using
joint
electrospinning‐rolling
technique.
In
this
SDI,
polyacrylonitrile
(PAN)
nanofibers
normalize
Li‐ion
flux
across
bulk
electrolyte
and
mitigate
electrode
volume
expansion.
More
significantly,
continuous
release
of
lithiophilic
ions
aids
in
constructing
alloy
interphase
situ,
which
facilitates
transport
uniform
lithium
deposition.
With
dynamic
protection
SDI
films,
cracks
layer
can
be
promptly
repaired
during
cycling,
ensuring
efficient
control
prolonged
stabilization
LMAs.
As
validation,
PAN/SnCl
2
film
as
an
prototype,
symmetric
cells
achieve
ultra‐long
cycling
5200
h
(≈7
months)
at
5
mA
cm
−2
mAh
.
When
paired
with
sulfur
cathode
(in
ether
electrolyte)
or
LiNi
0.8
Co
0.1
Mn
O
ester
electrolyte),
full
exhibit
exceptional
stability
rate
performance.
This
strategy
LMAs
opens
path
to
suppress
dendrite
growth,
creating
new
opportunities
advanced
batteries.
Small,
Journal Year:
2024,
Volume and Issue:
20(24)
Published: Jan. 19, 2024
Abstract
1T‐MoSe
2
is
recognized
as
a
promising
anode
material
for
sodium‐ion
batteries,
thanks
to
its
excellent
electrical
conductivity
and
large
interlayer
distance.
However,
inherent
thermodynamic
instability
often
presents
unparalleled
challenges
in
phase
control
stabilization.
Here,
molecular
intercalation
strategy
developed
synthesize
thermally
stable
1T‐rich
MoSe
,
covalently
bonded
an
intercalated
carbon
layer
(1T
R
/2H‐MoSe
@C).
Density
functional
theory
calculations
uncover
that
the
introduced
ethylene
glycol
molecules
not
only
serve
electron
donors,
inducing
reorganization
of
Mo
4d
orbitals,
but
also
sacrificial
guest
materials
generate
conductive
layer.
Furthermore,
C─Se/C─O─Mo
bonds
encourage
strong
interfacial
electronic
coupling,
prevents
restacking
regulating
maximum
1T
impressive
80.3%.
Consequently,
@C
exhibits
extraordinary
rate
capacity
326
mAh
g
−1
at
5
A
maintains
long‐term
cycle
stability
up
1500
cycles,
with
365
.
Additionally,
full
cell
delivers
appealing
energy
output
194
Wh
kg
208
W
retention
87.3%
over
200
cycles.
These
findings
contribute
valuable
insights
toward
development
innovative
transition
metal
dichalcogenides
next‐generation
storage
technologies.
ChemSusChem,
Journal Year:
2024,
Volume and Issue:
17(14)
Published: March 5, 2024
The
pursuit
of
efficient
host
materials
to
address
the
sluggish
redox
kinetics
sulfur
species
has
been
a
longstanding
challenge
in
advancing
practical
application
lithium-sulfur
batteries.
In
this
study,
amorphous
carbon
layer
loaded
with
ultrafine
CoP
nanoparticles
prepared
by
one-step
situ
carbonization/phosphating
method
enhance
inhibition
2D
black
phosphorus
(BP)
on
LiPSs
shuttle.
coating
facilitates
accelerated
electron/ion
transport,
enabling
active
involvement
BP
conversion
soluble
lithium
polysulfides
(LiPSs).
Concurrently,
ultra-fine
chemical
anchoring
ability
and
introduce
additional
catalytic
sites.
As
result,
S@BP@C-CoP
electrodes
demonstrate
exemplary
cycling
stability
(with
minimal
capacity
decay
0.054
%
over
500
cycles
at
1
C)
superior
rate
performance
(607.1
mAh
g
