Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(25)
Published: Feb. 1, 2024
Abstract
Although
metal–sulfur
batteries
(M–S
batteries,
M
=
Li,
Na,
K)
are
promising
next‐generation
energy‐storage
devices
because
of
ultrahigh
theoretical
energy
density,
low
cost,
and
environmentally
friendliness,
their
practical
applications
significantly
hindered
by
the
shuttle
effect
polysulfides
growth
alkali
metal
dendrites.
These
issues
can
be
mitigated
using
Janus
atomic‐site
catalysts,
which
possess
maximum
atom
utilization
efficiency
(≈100%),
adjustable
electronic
structures,
tailorable
catalytic
sites,
thereby
effectively
improving
electrochemical
performance
M–S
batteries.
In
this
review,
recent
progress
development
atomic‐sites
on
properties,
synthesis,
characterizations
reviewed.
Then,
advances
in
catalysts
intended
for
accelerating
polysulfide
conversion
regulating
deposition,
briefly
introducing
working
principles
systematically
summarized.
Furthermore,
a
high
emphasis
is
placed
effective
regulation
strategies
rational
design
Finally,
current
challenges
future
research
directions
also
presented
to
develop
high‐efficiency
high‐energy
Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(20)
Published: March 11, 2024
Abstract
Heterogeneous
structures
and
doping
strategies
have
been
intensively
used
to
manipulate
the
catalytic
conversion
of
polysulfides
enhance
reaction
kinetics
suppress
shuttle
effect
in
lithium‐sulfur
(Li‐S)
batteries.
However,
understanding
how
select
suitable
for
engineering
electronic
structure
polar
catalysts
is
lacking.
Here,
a
comparative
investigation
between
heterogeneous
conducted
assess
their
impact
on
modulation
effectiveness
catalyzing
polysulfides.
These
findings
reveal
that
Co
0.125
Zn
0.875
Se,
with
metal‐cation
dopants,
exhibits
superior
performance
compared
CoSe
2
/ZnSe
structures.
The
incorporation
low
2+
dopants
induces
subtle
lattice
strain
resulting
increased
exposure
active
sites.
As
result,
Se
demonstrates
enhanced
electron
accumulation
surface
sites,
improved
charge
carrier
mobility,
optimized
both
p
‐band
d
centers.
Li‐S
cells
employing
catalyst
demonstrate
significantly
capacity
(1261.3
mAh
g
−1
at
0.5
C)
cycle
stability
(0.048%
delay
rate
within
1000
cycles
C).
This
study
provides
valuable
guidance
typical
catalysts,
serving
as
design
directive
tailor
activity
advanced
catalysts.
Accounts of Chemical Research,
Journal Year:
2024,
Volume and Issue:
57(15), P. 2093 - 2104
Published: June 26, 2024
ConspectusLithium-sulfur
batteries
(LSBs),
recognized
for
their
high
energy
density
and
cost-effectiveness,
offer
significant
potential
advancement
in
storage.
However,
widespread
deployment
remains
hindered
by
challenges
such
as
sluggish
reaction
kinetics
the
shuttle
effect
of
lithium
polysulfides
(LiPSs).
By
introduction
catalytic
materials,
effective
adsorption
LiPSs,
smooth
surface
migration
behavior,
significantly
reduced
conversion
barriers
are
expected
to
be
achieved,
thereby
sharpening
electrochemical
fundamentally
addressing
aforementioned
challenges.
driven
practical
application
targets,
demand
higher
loadings
electrolyte
parameters
inevitably
exacerbates
burden
on
materials
during
service.
Additionally,
given
that
contribute
negligible
capacity,
incorporation
increases
mass
nonactive
components
reducing
LSBs.
A
meticulous
insight
into
lithium-sulfur
reveals
LiPSs
is
dominated
active
sites
surfaces
materials.
These
microregions
provide
necessary
electron
ion
transport
with
efficacy
quantity
directly
impacting
efficiency.
In
light
these
considerations,
strategic
optimization
emerges
a
paramount
pathway
toward
promoting
performance
LSBs
while
concurrently
mitigating
unnecessary
mass.
Here,
we
outline
three
strategies
developed
our
group
optimize
materials:
(1)
Augmenting
customizing
structural
modulation
precise
dimensional
control
maximize
exposure.
Emphasis
has
been
placed
approaches
material
synthesis
essence
reactions
achieving
this
strategy.
(2)
Regulating
microenvironment
integrating
coordination
refinement,
long-range
atomic
interactions,
metal-support
other
electronic
regulation
strategies,
providing
an
elevation
intrinsic
performance.
(3)
Implementing
self-cleaning
mechanism
counteract
deactivation
designing
tandem
adsorption-migration-transformation
sulfur
contained
within
molecular
domain.
Throughout
process,
mechanisms
driving
enhancement
through
site
have
prominently
emphasized,
which
encompass
aspects
structure,
composition,
configuration
expand
comprehension
Li-S
chemistry.
Subsequently,
considerations
demanding
heightened
attention
future
processes
delineated,
including
situ
evolution
patterns
resistance
poisoning
sites.
It
noteworthy
similarity
between
catalysis
chemistry
traditional
electrocatalytic
processes,
Account
elucidates
concept
drawing
insights
from
representative
works
own
field
electrocatalysis,
relatively
rare
previous
reviews
The
proposed
uncovering
introducing
innovative
ideas
optimization,
ultimately
advancing
stability
Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
136(22)
Published: March 15, 2024
Abstract
Integrating
solar
energy
into
rechargeable
battery
systems
represents
a
significant
advancement
towards
sustainable
storage
solutions.
Herein,
we
propose
win‐win
solution
to
reduce
the
shuttle
effect
of
polysulfide
and
improve
photocorrosion
stability
CdS,
thereby
enhancing
conversion
efficiency
rGO/CdS‐based
photorechargeable
integrated
lithium‐sulfur
batteries
(PRLSBs).
Experimental
results
show
that
CdS
can
effectively
anchor
under
sunlight
irradiation
for
20
minutes.
Under
high
current
density
(1
C),
discharge‐specific
capacity
PRLSBs
increased
971.30
mAh
g
−1
,
which
is
113.3
%
enhancement
compared
dark
condition
(857.49
).
Remarkably,
without
an
electrical
power
supply,
maintain
21
hours
discharge
process
following
merely
1.5
light
irradiation,
achieving
breakthrough
solar‐to‐electrical
up
5.04
%.
Ex
situ
X‐ray
photoelectron
spectroscopy
(XPS)
in
Raman
analysis
corroborate
effectiveness
this
complementary
weakness
approach
bolstering
redox
kinetics
curtailing
dissolution
PRLSBs.
This
work
showcases
feasible
strategy
develop
with
potential
dual‐functional
metal
sulfide
photoelectrodes,
will
be
great
interest
future‐oriented
off‐grid
photocell
systems.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(25)
Published: Feb. 1, 2024
Abstract
Although
metal–sulfur
batteries
(M–S
batteries,
M
=
Li,
Na,
K)
are
promising
next‐generation
energy‐storage
devices
because
of
ultrahigh
theoretical
energy
density,
low
cost,
and
environmentally
friendliness,
their
practical
applications
significantly
hindered
by
the
shuttle
effect
polysulfides
growth
alkali
metal
dendrites.
These
issues
can
be
mitigated
using
Janus
atomic‐site
catalysts,
which
possess
maximum
atom
utilization
efficiency
(≈100%),
adjustable
electronic
structures,
tailorable
catalytic
sites,
thereby
effectively
improving
electrochemical
performance
M–S
batteries.
In
this
review,
recent
progress
development
atomic‐sites
on
properties,
synthesis,
characterizations
reviewed.
Then,
advances
in
catalysts
intended
for
accelerating
polysulfide
conversion
regulating
deposition,
briefly
introducing
working
principles
systematically
summarized.
Furthermore,
a
high
emphasis
is
placed
effective
regulation
strategies
rational
design
Finally,
current
challenges
future
research
directions
also
presented
to
develop
high‐efficiency
high‐energy
