Electron Acceptor-Driven Solid Electrolyte Interphases with Elevated LiF Content for 4.7 V Lithium Metal Batteries
Nano-Micro Letters,
Год журнала:
2025,
Номер
17(1)
Опубликована: Фев. 24, 2025
Abstract
High-voltage
lithium
(Li)
metal
batteries
(LMBs)
face
substantial
challenges,
including
Li
dendrite
growth
and
instability
in
high-voltage
cathodes
such
as
LiNi
0.8
Mn
0.1
Co
O
2
(NCM811),
which
impede
their
practical
applications
long-term
stability.
To
address
these
tris(pentafluorophenyl)borane
additive
an
electron
acceptor
is
introduced
into
ethyl
methyl
carbonate/fluoroethylene
carbonate-based
electrolyte.
This
approach
effectively
engineers
robust
dual
interfaces
on
the
anode
NCM811
cathode,
thereby
mitigating
dendritic
of
enhancing
stability
cathode.
additive-driven
strategy
enables
LMBs
to
operate
at
ultra-high
voltages
up
4.7
V.
Consequently,
Li||Cu
cells
achieve
a
coulombic
efficiency
98.96%,
Li||Li
symmetric
extend
cycle
life
impressive
4000
h.
Li||NCM811
full
maintain
high
capacity
retention
87.8%
after
100
cycles
Additionally,
Li||LNMO
exhibit
exceptional
rate
capability,
delivering
132.2
mAh
g
−1
10
C
retaining
95.0%
250
1
5
As
result,
NCM811||graphite
pouch
93.4%
1100
C.
These
findings
underscore
efficacy
engineering
addressing
formation
cathode
under
voltage,
paving
road
for
durable,
high-performance
LMBs.
Язык: Английский
Cation migration of layered oxide cathodes for sodium-ion batteries: fundamental failure mechanisms and practical modulation strategies
Chemical Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
We
comprehensively
review
the
research
advances
in
cation
migration
of
sodium
layered
oxides,
systematically
revealing
fundamental
mechanisms
and
practical
modulation
strategies
for
irreversible
leading
to
battery
failure.
Язык: Английский
Surface phosphating of layered oxide cathode materials for potassium-ion battery
Nano Energy,
Год журнала:
2025,
Номер
unknown, С. 110813 - 110813
Опубликована: Фев. 1, 2025
Язык: Английский
Low-Temperature Synthesis of Amorphous LiF/Li₃BO₃ Interfaces with F, B Co-Doped Subsurface for Long-Cycling and High-Rate Ni-Rich Cathodes
Nano Energy,
Год журнала:
2025,
Номер
unknown, С. 111009 - 111009
Опубликована: Апрель 1, 2025
Язык: Английский
Achieving high-voltage polymer-based all solid-state batteries based on thermodynamic and kinetic degradation insights
eScience,
Год журнала:
2025,
Номер
unknown, С. 100433 - 100433
Опубликована: Май 1, 2025
Язык: Английский
Revealing the Role of Ammonia in the Rapid Crystallization Kinetics for Ni-Rich Hydroxide Precursors via Microreactors
Industrial & Engineering Chemistry Research,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 12, 2024
The
morphology
and
microstructure
of
precursors
are
the
key
to
preparation
high-quality
NCM
cathodes
due
their
inheritance
relationship.
However,
a
large
amount
sulfate
exists
in
precursors,
detriment
electrochemical
performance
Ni-rich
cathode
materials.
Herein,
an
effective
method
for
reduction
was
proposed
synthesis
Ni0.90Co0.05Mn0.05(OH)2
precursor
by
adding
0.24
M
ammonia
microreactor.
less
Ni(OH)2
with
system
is
attributed
higher
formation
energy
adsorption
(ENi(OH)2-am-SO42–
=
7.483
eV
vs
ENi(OH)2-SO42–
3.451
eV).
results
demonstrated
that
can
promote
growth
primary
particles
(81.5
nm)
reduce
content
impurity
from
0.80
0.28%
precursors.
Moreover,
prepared
materials
exhibit
high
specific
capacity
190.4
mAh
g–1
at
1C
superior
Li+
diffusion
coefficients.
This
study
sheds
light
on
role
rapid
coprecipitation
provides
guidance
process
cathodes.
Язык: Английский