Anion‐Reduction‐Catalysis Induced LiF‐Rich SEI Construction for High‐Performance Lithium‐Metal Batteries
Advanced Energy Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 3, 2024
Abstract
The
practical
application
of
lithium‐metal
batteries
(LMBs)
remains
impeded
by
uncontrollable
Li
dendrite
growth
and
unstable
solid‐state
electrolyte
interphase
(SEI)
on
anodes.
Constructing
the
inorganic‐rich
SEI
is
considered
as
an
effective
strategy
to
realize
dense
deposition
inhibit
interfacial
side
reactions,
thereby
improving
lifespans
LMBs.
Herein,
anion‐reduction‐catalysis
mechanism
proposed
design
a
LiF‐rich
utilizing
2D
tellurium
(Te)
nanosheets
catalysts,
which
are
homogenously
implanted
substrate.
Lithiophilic
Te
can
induce
uniform
nucleation
through
in
situ
lithiation
while
resulting
product
2
reduce
energy
barrier
for
anion
decomposition
promote
generation
LiF
SEI.
Consequently,
reactions
effectively
suppressed,
enabling
long‐cycle‐life
Te‐modified
electrode
half‐cells
delivers
superior
cycle
life
exceeding
500
cycles
high
average
Coulombic
efficiency
97.8%
at
5
mAh
cm
−2
.
high‐energy‐density
(405
Wh
kg
−1
)
pouch
cells
pairing
anodes
with
high‐mass‐loading
LiNi
0.9
Co
0.05
Mn
O
(NCM90)
cathodes
exhibit
stable
cycling
performance
99.3%
carbonate
electrolytes.
This
work
provides
promising
catalyst
paves
way
developing
Язык: Английский
Two Thiophene-Functionalized Co-MOFs as Green Heterogeneous Catalysts for the Biginelli Reaction
Inorganic Chemistry,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 2, 2024
Two
Co(II)
metal-organic
frameworks
(Co-MOFs),
namely,
[Co(DMTDC)(bimb)]
Язык: Английский
Construct favorable solid electrolyte interphase by applying alternating current discharge during battery formation
Chemical Engineering Journal,
Год журнала:
2025,
Номер
unknown, С. 161738 - 161738
Опубликована: Март 1, 2025
Язык: Английский
Recent Advances in Ex Situ Surface Treatments for Lithium Metal Negative Electrodes in Secondary Batteries
International Journal of Molecular Sciences,
Год журнала:
2025,
Номер
26(7), С. 3446 - 3446
Опубликована: Апрель 7, 2025
Lithium
metal
negative
electrodes
are
pivotal
for
next-generation
batteries
because
of
their
exceptionally
high
theoretical
capacity
and
low
redox
potential.
However,
commercialization
is
constrained
by
critical
challenges,
including
dendrite
formation,
volumetric
instability,
the
fragility
solid
electrolyte
interphase
(SEI).
In
this
context,
review
highlights
transformative
potential
ex
situ
surface
treatments,
which
stabilize
lithium
before
cell
assembly.
Key
advancements
include
inorganic
polymer-based
coatings
that
enhance
SEI
stability
mitigate
growth,
three-dimensional
host
architectures
manage
changes
improve
diffusion,
liquid-phase
chemical
modifications
enable
uniform
deposition.
These
strategies
critically
evaluated
scalability,
environmental
sustainability,
long-term
stability,
paying
particular
attention
to
cost,
complexity,
ecological
considerations.
addition,
contributions
development
advanced
battery
technologies
discussed,
providing
insights
into
pathways
toward
enhanced
commercial
viability.
By
synthesizing
cutting-edge
research
identifying
unresolved
provides
a
comprehensive
roadmap
advancing
safer,
more
efficient,
durable
batteries,
thereby
bridging
gap
between
laboratory
adoption.
Язык: Английский
Strategic Surface Engineering of Lithium Metal Anodes: Simultaneous Native Layer Elimination and Protective Layer Formation via Gas–Solid Reaction
ACS Nano,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 17, 2025
Lithium
(Li)
metal
has
received
significant
attention
as
an
anode
material
for
next-generation
batteries
due
to
its
high
theoretical
capacity
and
low
redox
potential.
However,
the
reactivity
of
Li
leads
formation
a
native
layer
on
surface,
inducing
nonuniform
Li+
flux
at
electrolyte/Li
interface,
which
promotes
growth
dendrites.
In
this
study,
perfluorooctyltriethoxysilane
(PFOTES)
was
vaporized
chemically
react
with
modify
surface.
This
gas-solid
reaction
removes
while
simultaneously
forming
homogeneous
solid
electrolyte
interphase
(SEI)
layer.
The
Si-O-Si
network
formed
through
condensation
reactions
between
PFOTES
molecules,
combined
fluorinated
carbon
chain
PFOTES,
facilitates
rapid
kinetics
metal/electrolyte
interface.
Consequently,
exchange
current
density
PFOTES-modified
(PFOTES-Li)
increased
0.2419
mA
cm-2,
is
20
times
higher
than
that
Bare-Li
(0.0119
cm-2).
SEI
derived
from
effectively
mitigates
pulverization
dead
during
long-term
cycling.
As
result,
PFOTES-Li||LiNi0.8Mn0.1Co0.1O2
full
cell
exhibits
excellent
discharge
203.4
mAh
g-1
under
areal
loading
4.2
cm-2.
study
demonstrates
strategy
removing
surface
stable
layer,
thereby
ensuring
conductivity
mechanical
stability,
thus
improving
cycling
stability
batteries.
Язык: Английский
Poly(3-thiophenemalonic acid) Modified NiFe Layered Double Hydroxide Electrocatalyst for Stable Seawater Oxidation at an Ampere-Scale Current Density
ACS Materials Letters,
Год журнала:
2024,
Номер
6(12), С. 5248 - 5255
Опубликована: Окт. 31, 2024
Seawater
electrolysis
shows
potential
for
sustainable
hydrogen
production
but
faces
challenges
from
the
high
concentration
of
Cl–,
which
leads
to
corrosion
and
performance
degradation.
In
this
study,
we
prepared
a
NiFe
layered
double
hydroxide
(NiFe
LDH)
nanoarray
modified
with
poly(3-thiophenemalonic
acid)
(PTPA)
on
Ni
foam
LDH@PTPA/NF)
enhance
alkaline
seawater
oxidation
(ASO).
PTPA
serves
as
conductive
protective
layer,
improving
electrical
conductivity
repelling
Cl–
increase
stability.
The
electrode
demonstrated
stable
operation
at
1000
mA
cm–2
low
overpotential
600
h,
generating
minimal
chlorine.
situ
Raman
spectroscopy
confirmed
that
facilitates
active
site
formation
provides
protection,
while
inductively
coupled
plasma-optical
emission
spectrometry
analysis
indicated
reduced
Fe
leaching.
This
study
highlights
polymers
ASO
durability.
Язык: Английский