Advanced performance through mechanofusion-induced uniform interfacial layers for all-solid-state lithium-sulfur batteries
Junyoung Heo,
No information about this author
Junghwan Sung,
No information about this author
Dong Hee Kim
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et al.
Applied Surface Science,
Journal Year:
2025,
Volume and Issue:
unknown, P. 162292 - 162292
Published: Jan. 1, 2025
Language: Английский
Oxygen Functional Groups Regulating Sulfur Distribution in Carbon Micropores to Enhance Solid-Phase Conversion Reactions for Lithium–Sulfur Batteries
ACS Applied Materials & Interfaces,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 5, 2025
The
performance
of
lithium-sulfur
(Li-S)
batteries
is
determined
by
the
cathode,
which
to
a
large
extent
affected
low
electrical
conductivity
S
and
dissolution
lithium
polysulfides
(Li2Sx).
confinement
within
microporous
C
promising
method
address
these
challenges.
introduction
O-containing
functional
groups
inside
micropores
improves
capacity
for
solid-phase
conversion
in
Li-S
batteries.
However,
mechanism
behind
this
enhanced
performance,
particularly
role
on
pores,
remains
unclear.
In
study,
we
investigate
effect
and/or
Li2Sx
micropores,
focusing
their
impact
electrochemical
efficiency
suppression
polysulfide
migration.
Electrochemical
impedance
spectroscopy
measurements
show
that
accelerate
charge
transfer
reactions
Li+
ion
diffusion.
Cross-sectional
scanning
transmission
electron
microscopy-electron
energy
loss
S-C
composites
reveals
that,
without
groups,
migrate
localize
inner
edge
carbon
host
during
cycling.
contrast,
presence
pores
maintains
uniform
distribution
explaining
improved
conclusion,
paper
proposes
new
design
cathode
high-performance
For
first
time,
experimental
evidence
provided
confirm
whereby
into
enhances
lowering
resistance
preventing
These
modifications
improve
offer
insights
developing
more
effective
cathodes
advance
commercialization
Language: Английский
Balancing sulfur utilization and electrolyte demand in Li−S batteries via porosity−tuned calendaring−driven electrodes
Journal of Power Sources,
Journal Year:
2025,
Volume and Issue:
643, P. 237052 - 237052
Published: April 16, 2025
Language: Английский
Thermoelectric Field Enhanced Sulfur Evolution Kinetics for High Performance Lithium‐Sulfur Batteries
Danqi He,
No information about this author
Xiaopeng Zhang,
No information about this author
L.-H. Chen
No information about this author
et al.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 13, 2025
Abstract
The
practical
deployment
of
lithium‐sulfur
(Li‐S)
batteries
has
been
impeded
by
the
shuttle
effect
and
sluggish
kinetics
lithium
polysulfide
(LiPSs)
conversion.
Here,
Bi
0.5
Sb
1.5
Te
3
/carbon
nanotubes
(BST/CNT)
interlayer
is
designed
to
enhance
durability
Li‐S
providing
extensive
adsorption
sites
generating
a
thermoelectric
field
from
BST
material.
Experimental
density
functional
theory
investigations
confirm
superior
properties
BST.
Additionally,
analyses
using
Gibbs
free
energy
cyclic
voltammetry
robustly
demonstrate
that
significantly
accelerates
conversion
LiPSs.
electrochemical
performance
cells
equipped
with
20%
exceptional,
showing
remarkable
stability
over
500
cycles
at
1
C
minimal
capacity
decay
rate
0.05%
per
cycle.
Most
importantly,
substantially
improves
LiPSs,
allowing
cell
maintain
discharge
594
mAh
g
−1
even
10
C.
Furthermore,
under
conditions
high
sulfur
loading
(7.0
mg
cm
−2
)
low
electrolyte‐to‐sulfur
ratio
(6.1
µL
),
achieves
an
areal
5.9
.
This
research
not
only
evidences
effectiveness
in
enhancing
LiPSs
but
also
shows
its
potential
boost
batteries.
Language: Английский