Manipulation of lithium dendrites based on electric field relaxation enabling safe and long-life lithium-ion batteries
Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Апрель 18, 2025
Lithium
dendrites,
with
their
high
reactivity,
pose
a
critical
challenge
to
the
safety
and
longevity
of
lithium-based
batteries.
Effective
regulation
strategies
are
crucial
for
mitigating
battery
degradation
enhancing
reliability.
Conventional
approaches,
such
as
relaxation
following
lithium
plating
or
regulated
discharging,
often
fail
simultaneously
address
formation
solid
electrolyte
interface
isolated
lithium.
Here,
we
demonstrate
that
rational
utilization
electric
field
dendrite
growth
can
reduce
defective
by
balancing
morphology
smoothing
near
time
constant.
Building
upon
mechanism,
propose
short-term
method
manipulate
plating,
which
achieves
an
enhancement
capacity
retention
from
80%
up
95%
at
3
C-rate
(20
min)
fast-charging
on
commercial
These
findings
highlight
importance
after
dendrites
safe,
long-life
batteries,
particularly
where
is
limiting
factor.
Язык: Английский
Reliable Sulfur Cathode Design for All‐Solid‐State Lithium Metal Batteries Based on Sulfide Electrolytes
Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 6, 2025
Abstract
Sulfide
electrolytes
are
considered
the
most
promising
technique
for
all‐solid‐state
lithium–sulfur
batteries
(ASLSBs)
due
to
relatively
high
ionic
conductivity
and
superior
chemical
compatibility
with
composite
sulfur
cathodes.
However,
cathodes
based
on
sulfide
feature
large
volume
expansion,
unstable
interfacial
contact,
inherent
insulating
nature,
which
impedes
practical
application
of
ASLSBs.
Therefore,
a
systematic
design
cathode
side
ASLSBs
is
crucial
ensuring
well‐contacted,
electrochemically
stable
cathode–electrolyte
interface,
an
effective
ion‐electron
transfer
network.
Here,
comprehensive
discussion
latest
strategies
will
be
delivered,
highlighting
their
effectiveness
in
improving
performances
First,
major
challenges
including
slow
oxidation
kinetics
significant
expansion
dissected.
Then,
focus
shifted
degradation
processes
at
interface
between
electrolyte.
Subsequently,
improvement
stability
by
structural
modulation
elaborated.
Finally,
progress,
we
present
new
perspective
constructing
efficient
transport
network
cathode‐electrolyte
offers
insights
directions
achieving
future.
Язык: Английский
Bilayer solid electrolyte interphase for stable lithium metal batteries
Science China Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 21, 2025
Язык: Английский
Reevaluating the Effect of a LiF-Containing Solid Electrolyte Interphase on Lithium Metal Anodes
Nano Letters,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 30, 2025
Developing
high-energy-density
lithium
metal
batteries
(LMBs)
necessitates
robust
solid
electrolyte
interphases
(SEIs)
capable
of
enduring
prolonged
cycling.
While
fluoride
(LiF)
is
recognized
as
crucial
for
anode
(LMA)
protection,
the
effects
different
LiF
sources
in
SEIs
remain
insufficiently
understood.
In
this
study,
we
systematically
introduce
single
fluorine
sources─anion
LiF,
solvent
and
native
LiF─into
a
fluoride-free
system
to
elucidate
impact
originating
from
on
SEI
composition
properties.
Results
reveal
that
performance
depends
not
only
content
but
also
coexisting
organic
components.
During
deep
cycling,
solvent-derived
LiF-rich
SEIs,
containing
elevated
organics,
offer
superior
LMA
protection
ability.
These
maintain
structural
integrity
during
significant
volume
changes,
effectively
suppressing
dead
Li
formation
achieving
enhanced
Coulombic
efficiency.
This
work
reexamines
LiF's
protective
mechanisms
while
advancing
chemistry
understanding,
providing
critical
insights
developing
high-performance
LMBs.
Язык: Английский
Semi‐Solid Na‐K Alloy Anode with Enhanced Stabilities for Advanced Sodium‐Ion Batteries
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 26, 2025
Abstract
Sodium‐potassium
(Na‐K)
alloys
are
recognized
as
a
promising
anode
material
due
to
their
unique
liquid
properties
at
room
temperature,
which
endow
them
with
self‐healing
ability
and
dendrite‐free
potential.
However,
the
nature
of
Na‐K
also
introduces
significant
instability,
undermines
inherent
advantages
thus
restricts
practical
application.
In
this
work,
semi‐solid
consisting
homogeneous
mixture
solid
phases
is
developed,
aiming
enhance
stability
while
preserving
original
benefits.
The
synergistic
interaction
between
enables
integrate
both
anodes,
thereby
demonstrating
excellent
comprehensive
performance.
Notably,
when
matched
NaClO
4
electrolyte,
formation
electrolyte
interphase
containing
KClO
crystal
layers
observed,
possesses
high
modulus
inhibit
dendrite
growth
promote
uniform
deposition.
As
result,
full
cells
utilizing
achieve
capacity
retention
89.18%
after
1000
cycles
1
C,
rate
performance,
93
mAh
g⁻
20
C.
This
work
expands
application
potential
alloy
anodes
provides
constructive
approach
for
high‐performance
Na
metal
anodes.
Язык: Английский
Dual Electrolyte Additives to Achieve High-Rate Cycle Performance of Lithium-Ion Batteries with a High Nickel Cathode
Chemical Communications,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
High-Ni
cathodes
promise
high
energy
density
but
suffer
from
interfacial
degradation.
Here,
a
dual-additive
electrolyte-trimethylsilyl
phosphate
to
scavenge
HF
and
adiponitrile
tailor
Li+
solvation-enables
robust,
LiF-rich
CEI,
boosting
NCM811's
stability.
This
strategy
achieves
90.16%
capacity
retention
at
5C,
offering
pathway
durable,
high-performance
batteries.
Язык: Английский