Angewandte Chemie International Edition,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 30, 2025
Abstract
Lithium–sulfur
batteries
(LSBs)
are
considered
promising
next‐generation
due
to
their
high
energy
density
(>500
W
h
kg
−1
).
However,
LSBs
exhibit
an
unsatisfactory
(<400
)
and
cycle
life
(<300
cycles)
because
of
the
shuttle
effect
caused
by
soluble
lithium
polysulfide
(LiPS)
intermediates
sluggish
conversion
reaction
kinetics
insulating
sulfur
(S
8
sulfide
(Li
2
S).
Although
various
types
catalysts,
including
metal‐based
compounds
single‐atom
have
been
reported
address
these
issues,
most
catalysts
exhibited
limited
catalytic
activity
under
practical
lean
electrolyte
conditions
(<5
µL
mg
A
comprehensive
understanding
synthetic
strategy
mechanism
is
essential
for
design,
but
electronic
effects
LiPS
more
important.
Furthermore,
design
not
well
understood.
In
this
review,
we
introduce
mechanisms
in
discuss
catalyst
strategies
terms
on
interactions
between
reactants
with
a
primary
focus
heterogeneous
systems.
We
additionally
consider
how
property
homogeneous
systems,
particularly
redox
mediators,
affects
behavior
propose
future
research
directions
development
LSBs.
ACS Nano,
Год журнала:
2024,
Номер
18(28), С. 18622 - 18634
Опубликована: Июль 1, 2024
Advancing
the
high-voltage
stability
of
O3-type
layered
cathodes
for
sodium-ion
batteries
is
critical
to
boost
their
progress
in
energy
storage
applications.
However,
this
type
cathode
often
suffers
from
intricate
phase
transition
and
structural
degradation
at
high
voltages
(i.e.,
>4.0
V
vs
Na+/Na),
resulting
rapid
capacity
decay.
Here,
we
present
a
Li/Ti
cosubstitution
strategy
modify
electronic
configuration
oxygen
elements
oxide
cathode.
This
deliberate
modulation
simultaneously
mitigates
transitions
counteracts
weakening
shielding
effect
extraction
sodium
ions,
thus
enhancing
electrostatic
bonding
within
TM
layer
inducing
optimizing
O3-OP2
occurring
voltage
range
2.0-4.3
V.
Consequently,
cosubstituted
NaLi1/9Ni1/3Mn4/9Ti1/9O2
exhibits
an
astounding
161.2
mAh
g-1
1C,
stable
cycling
up
100
cycles
has
been
achieved.
work
shows
impact
mechanism
element
substitution
on
interlayer
forces
transitions,
providing
crucial
reference
optimization
materials.
Abstract
Lithium–sulfur
(Li–S)
batteries
have
attracted
significant
attention
in
the
realm
of
electronic
energy
storage
and
conversion
owing
to
their
remarkable
theoretical
density
cost‐effectiveness.
However,
Li–S
continue
face
challenges,
primarily
severe
polysulfides
shuttle
effect
sluggish
sulfur
redox
kinetics,
which
are
inherent
obstacles
practical
application.
Metal‐organic
frameworks
(MOFs),
known
for
porous
structure,
high
adsorption
capacity,
structural
flexibility,
easy
synthesis,
emerged
as
ideal
materials
separator
modification.
Efficient
interception/conversion
ability
rapid
lithium‐ion
conduction
enabled
by
MOFs
modified
layers
demonstrated
batteries.
In
this
perspective,
objective
is
present
an
overview
recent
advancements
utilizing
pristine
MOF
modification
separators
The
mechanisms
behind
enhanced
electrochemical
performance
resulting
from
each
design
strategy
explained.
viewpoints
crucial
challenges
requiring
resolution
also
concluded
Moreover,
some
promising
concepts
based
on
proposed
enhance
investigate
adsorption/conversion
mechanisms.
These
efforts
expected
contribute
future
advancement
advanced
Advanced Energy Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 17, 2024
Abstract
The
lithium–sulfur
(Li–S)
battery
system
has
attracted
considerable
attention
due
to
its
ultrahigh
theoretical
energy
density
and
promising
applications.
However,
with
the
increasing
demands
on
S
loading
electrolyte
content,
practical
Li–S
batteries
still
face
several
serious
challenges,
such
as
slow
reaction
kinetics
at
cathode
interface,
unstable
anode
interface
reactions,
undesirable
crosstalk
effects
between
anode.
Traditional
systems
often
struggle
address
these
challenges
under
conditions,
thereby
rendering
it
imperative
establish
a
new
for
batteries.
This
review
first
discusses
necessity
of
establishing
propose
specific
parameter
requirements,
electrolyte‐to‐sulfur
mass
ratio
(E
m
/S).
Subsequently,
some
modification
strategies
proposed
by
researchers
are
summarized
different
associated
Finally,
combination
is
reviewed,
aiming
reveal
more
effective
design
approaches
that
simultaneously
multiple
while
providing
guidance
balanced
article
promotes
development
electrolytes
can
act
reference
other
secondary
Journal of Materials Chemistry A,
Год журнала:
2024,
Номер
12(33), С. 21845 - 21852
Опубликована: Янв. 1, 2024
The
cathode
kinetics
promotion
effectiveness
of
electrocatalysts
is
evaluated
in
lean-electrolyte
lithium–sulfur
batteries.
improvement
polysulfide
conversion
and
battery
performance
more
significant
at
higher
sulfur
concentration.
The
widespread
application
of
anode-free
lithium
metal
batteries
(AFLMBs)
is
hindered
by
the
severe
dendrite
growth
and
side
reactions
due
to
poor
reversibility
Li
plating/stripping.
Herein,
our
study
introduces
an
ultrathin
interphase
layer
covalent
cage
3
(CC3)
for
highly
reversible
AFLMBs.
subnano
triangular
windows
in
CC3
serve
as
a
Li+
sieve
accelerate
desolvation
transport
kinetics,
inhibit
electrolyte
decomposition,
form
LiF-
Li3N-rich
solid-electrolyte
interphases.
Moreover,
lithiophilic
backbone
homogenizes
distribution
deposition
with
mitigated
growth.
Thus,
promotes
plating/stripping
kinetics
reversibility,
achieving
ultralong
stability
over
8000
h
Cu@CC3
electrode.
Furthermore,
practical
Cu@CC3/LiFePO4
AFLMBs
deliver
capacity
retention
(66%)
600
cycles.
This
work
emphasizes
effectiveness
regulate
behavior,
demonstrating
potential
porous
organic
cages
enhancing
cycle
life
