Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(49)
Published: Oct. 14, 2024
Abstract
The
dendrite
growth
and
volume
expansion
of
the
Li
metal
anode,
as
well
LiPSs
“shuttle
effect”
slow
conversion
kinetics
S
cathode,
have
severely
hampered
large‐scale
development
LSBs.
Herein,
a
simple
hydrothermal
method
is
employed
to
synthesize
rod‐like
AgVO
3
,
which
then
used
anode
current
collector
separator
modification,
respectively.
As
collector,
has
strong
affinity,
can
lower
nucleation
overpotential
guide
uniform
deposition
metal.
‐modified
accelerate
redox
achieve
anchoring
LiPSs.
results
DFT
calculation
experiments
reveal
that
enable
Ag
horizontal
d
orbitals
(d
xy
/d
x
2
‐y
)
hybridize
with
p
orbital
form
additional
σ/σ*
π/π*.
activation
increase
ability,
reduce
reaction
barrier,
transformation.
Hence,
LSBs
assembled
Li@AgVO
modified
show
excellent
cycle
performance.
This
work
gives
novel
idea
for
application
high
catalytic
performance
materials
represented
by
its
unique
successfully
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 9, 2024
Abstract
Lithium‐sulfur
(Li–S)
batteries
are
facing
a
multitude
of
challenges,
mainly
pertaining
to
the
sluggish
sulfur
redox
kinetics
and
rampant
lithium
dendrite
growth
on
cathode
anode
side,
respectively.
In
this
sense,
MXene
has
shown
conspicuous
advantages
in
serving
as
dual‐functional
promotor
for
Li–S
throughout
morphologic
engineering,
but
still
suffers
from
poor
electrocatalytic
activity
insufficient
lithophilic
sites.
Herein,
atomically
dispersed
Co
sites
seeded
onto
size
effect‐enabled
V
2
C
spheres
(Co‐VC),
leading
generation
unique
coordination
configurations
rich
active
Electrochemical
tests
combined
with
synchrotron
radiation
X‐ray
3D
nano‐computed
tomography
theoretical
calculations
unravel
that
Co‐VC
optimal
environments
simultaneously
boost
reaction
nucleation.
As
consequence,
modified
separator
can
sustain
stable
operation
over
700
cycles
negligible
capacity
decay
at
1.0
C,
delivers
an
areal
9.0
mAh
cm
−2
desired
cyclic
performance
high
loading
7.6
mg
lean
electrolyte
dosage
4.0
µL
S
−1
0.1
C.
The
work
opens
new
avenue
boosting
atomic‐scale
site
design
aid
2D
substrates
toward
pragmatic
batteries.
Energy & environment materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 13, 2025
The
pursuit
of
highly
efficient
electrocatalysts
is
utmost
significance
in
the
relentless
drive
to
enhance
electrochemical
performance
lithium‐sulfur
batteries.
These
enable
a
predominant
contribution
(~75%)
overall
discharge
capacity
during
cycling
by
facilitating
rapid
conversion
long‐chain
lithium
polysulfides
into
insoluble
short‐chain
products
(Li
2
S
and
Li
S).
Herein,
high
entropy
sulfides
derived
from
metal
glycerate
templates
are
synthesized
utilized
as
electrocatalysts.
Among
evaluated
materials,
containing
Ni,
Co,
Fe,
Mg,
Ti
(GS‐3)
showcases
modulated
spherical
morphology,
uniform
elemental
distribution,
catalytic
properties,
outperforming
Zn
(GS‐1)
Cu,
(GS‐2).
Consequently,
typical
battery
incorporating
GS‐3/S/KB
cathode
(S
loading
~2.3
mg
cm
−2
)
demonstrates
initial
~1061
mAh
g
−1
at
0.5
C
stable
(1500
cycles)
lowest
decay
rate
0.032%
per
cycle.
results
superior
GS‐1/S/KB
(~945
,
0.034%),
GS‐2/S/KB
(~909
0.086%),
S/KB
(~748
0.19%)
cells.
This
work
highlights
incorporation
titanium
other
elements
sulfide
structure,
forming
(i.e.,
GS‐3)
that
facilitates
enhances
Small,
Journal Year:
2024,
Volume and Issue:
20(46)
Published: Aug. 7, 2024
Abstract
The
kinetically
retarded
sulfur
evolution
reactions
and
notorious
lithium
dendrites
as
the
major
obstacles
hamper
practical
implementation
of
lithium–sulfur
batteries
(LSBs).
Dual
metal
atom
catalysts
a
new
model
are
expected
to
show
higher
activity
by
their
rational
coupling.
Herein,
dual‐atom
catalyst
with
coupled
Ni─Co
pairs
(Ni/Co‐DAC)
is
designed
successfully
programmed
approaches.
alter
local
electron
structure
optimize
coordination
configuration
Ni/Co‐DAC,
leading
coupling
effect
for
promoting
interconversion
guiding
plating/striping.
LSB
delivers
remarkable
capacity
818
mA
h
g
−1
at
3.0
C
low
degeneration
rate
0.053%
per
cycle
over
500
cycles.
Moreover,
high
mass
loading
6.1
mg
cm
−2
lean
electrolyte
dosage
6.0
µL
S
shows
areal
5.7
.
Nitrogen-doped
porous
carbon
microtubes
embedded
with
Ni/Zn
catalytic
sites
(NiZn-NPCT)
are
constructed
from
palm
threads
and
can
be
used
as
both
a
S
cathodic
host
separator
modifier
for
advanced
lithium-sulfur
batteries.
NiZn-NPCT
possesses
unique
interconnected
tunnels
abundantly
exposed
active
sites,
which
increase
the
affinity
lithium
polysulfides
(LiPSs)
thus
inhibit
shuttle
effect.
The
kinetic
studies
indicate
that
accelerate
redox
transformation
of
sulfur
species.
battery
assembled
NiZn-NPCT-modified
achieves
high
initial
discharge
capacities
1220
409.1
mAh
g-1
at
0.1C
5C,
respectively,
good
cycling
stability
(418.1
after
500
cycles
1C).
In
addition,
higher
sulfur/NiZn-NPCT
mass
ratio
(9:1),
still
exhibited
1234.4
(0.1C)
551.3
(5C).
This
study
offers
an
effective
strategy
to
utilize
renewable
biomass
microstructure
realize
high-performance
Li-S
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 25, 2025
Abstract
The
rational
design
of
abundant
and
efficient
active
sites
for
lithium‐sulfur
electrocatalysis
remains
a
long‐standing
challenge,
wherein
the
optimization
catalyst
activity
by
manipulating
their
sizes
has
stimulated
extensive
exploration.
Herein,
fine‐grain
strengthening
strategy
is
proposed
vanadium‐nitrogen‐carbon
(VNC)
comprising
vanadium
(V)‐based
units,
throughout
modulating
size
surface
energy
via
salt‐template
recrystallization.
recrystallization
frequency
dictated
to
precisely
tune
effect.
Through
rigorous
procedure
5‐time
recrystallization,
V‐based
units
realize
reduction
from
209
99
Å,
increase
0.16
0.32
eV
Å
−2
,
along
with
specific
area
adjustment
41.5
206.3
m
2
g
−1
.
Accordingly,
effect
effectively
activates
in
i)
enhancing
sulfur
species
adsorption
propelling
Li
S
nucleation/decomposition
reaction
kinetics;
ii)
guiding
high‐flux
uniform
lithium‐ions
thus
promoting
lithium
plating/stripping
behaviors.
Consequently,
battery
demonstrates
an
initial
discharge
capacity
1236.4
mA
h
at
0.2
C.
Even
after
600
cycles
2.0
C,
cycle‐to‐cycle
attenuation
merely
0.048%.
Furthermore,
pouch
cell
strengthened
VNC
can
proceed
stable
cycling
operation
1.0
ensuring
reliable
consistent
power
supply
electronic
gadgets.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 17, 2024
Abstract
The
sluggish
redox
kinetics
of
sulfur
electrode
and
the
“shuttle
effect”
caused
by
soluble
lithium
polysulfides
(LiPS)
are
critical
challenges
in
advancement
high‐energy
lithium‐sulfur
batteries.
Here,
a
pioneering
flexible
self‐supporting
composite
scaffold
that
incorporates
Janus
V
2
O
3
/VN
heterostructures
embedded
within
multichannel
nitrogen‐doped
carbon
nanofibers
(MNCNF)
is
introduced.
MNCNF
features
3D
hierarchical
porous
conductive
network
facilitates
rapid
ion/electron
transport
while
offering
substantial
space
for
high
loading.
Theoretical
calculations
demonstrate
heterocatalyst,
featuring
built‐in
interfacial
electric
field,
smooth
“capture‐diffusion‐conversion”
LiPS
leveraging
’s
strong
adsorption
capacity,
VN's
catalytic
capability
promoted
charge/ion
transport,
thereby
accelerating
bi‐directional
conversion.
as‐designed
with
loading
2.0
mg
cm
−2
showcases
rate
618
mAh
g⁻¹
at
5C
68.1%
capacity
retention
over
500
cycles.
Notably,
under
harsh
conditions
(6.0
)
lean
electrolyte
(7.5
µL
−1
),
it
achieves
initial
areal
4.92
94.8%
150
This
work
offers
valuable
insights
rational
design
optimal
vanadium‐based
heterocatalysts
aimed
facilitating
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 30, 2024
Abstract
Lithium–Sulfur
batteries
(LSBs)
are
widely
regarded
as
one
of
the
most
promising
energy
storage
systems
due
to
their
ultra‐high
theoretical
density
and
environmental
friendliness.
However,
practical
applications
LSBs
face
significant
challenges,
including
shuttle
effect
soluble
polysulfides
formation
lithium
dendrites.
Covalent
organic
frameworks
(COFs)
have
emerged
potential
materials
for
inhibiting
polysulfide
buffering
This
review
provides
an
overview
latest
advancements
in
use
COF
its
derivative
sulfur
host
materials,
modified
commercial
separators,
electrolytes
LBSs,
makes
some
brief
conclusions
predictions.
Pure
COFs,
derivatives,
composites
discussed
hosts,
along
with
novel
strategies
intended
enhance
LSB
cycling
stability
reversibility.
Strategies
enhancing
performance
summarized
through
modification
separators
using
ultimate
goal
achieving
high
density.
It
also
discusses
designing
COF‐based
electrolytes,
which
include
structural
design,
ionic
introduction
salt
molecules
or
flexible
oligo(ethylene
oxide)
chains
into
skeletons.
Additionally,
future
prospects
COFs
derivatives
LSBs.
ACS symposium series,
Journal Year:
2024,
Volume and Issue:
unknown, P. 165 - 194
Published: Nov. 4, 2024
Lithium-sulfur
battery
(LSB)
has
been
considered
as
a
potential
alternative
to
the
current
lithium-ion
owing
its
high
theoretical
specific
capacity
(1675
mAh
g-1)
and
energy
density
(2600
Wh
kg-1),
cost-effectiveness.
However,
several
key
scientific
challenges
such
"shuttle
effect",
low
conversion
kinetics,
Li
dendrite
growth,
etc.
severely
affect
electrochemical
performance
therefore
limit
practical
application.
In
this
chapter,
working
mechanism,
associated
of
LSBs
are
systematically
introduced
at
first.
Then,
advancements
in
materials
develop
well-engineered
cathodes,
interlayers,
separators,
electrolytes,
anodes
for
practically
applicable
comprehensively
discussed.
Further,
important
shifts
from
traditional
focus
on
cathode
modification
recent
developments
solid-electrolytes,
anode
protection,
adoption
also
This
chapter
is
useful
graduate
students
researchers
science,
nanoscience,
material
professionals
automobile
industries.
