Elucidating Gas Reduction Effects of Organosilicon Additives in Lithium-Ion Batteries
Journal of the American Chemical Society,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 26, 2025
Lithium-ion
batteries
(LIBs)
with
nonaqueous
liquid
electrolytes
are
prone
to
gas
generation
at
elevated
voltages
and
temperatures,
degrading
battery
performance
posing
serious
safety
risks.
Organosilicon
(OS)
additives
an
emerging
candidate
solution
for
gassing
problems
in
LIBs,
but
a
detailed
understanding
of
their
functional
mechanisms
remains
elusive.
In
this
work,
we
present
combined
computational
experimental
study
elucidate
the
gas-reducing
effects
OS
additives.
Cell
volume
measurements
chromatography–mass
spectrometry
reveal
that
can
substantially
reduce
evolution
particularly
CO2
regardless
source.
Through
density
theory
calculations,
identify
multiple
plausible
pathways
evolution,
including
(1)
nucleophile-induced
ring-opening
ethylene
carbonate
(EC)
subsequent
electro-oxidation
(2)
direct
lithium
(Li2CO3).
Correspondingly,
find
function
via
two
primary
mechanisms:
scavenging
nucleophiles
such
as
superoxide
(O2•–),
peroxide
(O22–),
ion
(CO32–);
oligomerization
oxide
dicarbonate
ion.
Moreover,
discover
possess
strong
coordination
affinity,
which
helps
further
nucleophilic
reaction
energies
hence
increases
nucleophile-scavenging
efficiency.
Finally,
provide
mechanistic
interpretation
enhanced
gas-reduction
observed
fluorinated
compounds,
corroborated
by
surface
analysis
results
from
X-ray
photoelectron
spectroscopy.
Our
offers
first
molecular-level
insights
into
how
contribute
reduced
formation
paving
way
improved
LIBs.
Язык: Английский
A Review of Current and Future Energy Materials for the Construction of Lithium-ion Batteries
H. O. Eriki,
F. H. Tobins,
Adiat I. Arogundade
и другие.
Опубликована: Апрель 4, 2025
This
mini-review
was
performed
to
showcase
the
potential
of
lithium-ion
batteries
as
key
future
energy-saving
components
for
use
in
domestic,
automobile,
and
other
energy-demanding
sectors.
It
explores
current
energy
materials
that
will
transform
construction
Lithium-ion
batteries,
focusing
on
cathodes,
anodes,
electrolytes,
separators.
critical
advancement
challenges
field
(LIBs),
various
essential
improving
battery
performance.
Different
studies
have
shown
traditional
cathode
materials,
primarily
Lithium
Cobalt
Oxide
(LiCoO2),
iron
phosphate
(LiFeO4)
Manganese
(NMC)
dominated
market
due
their
favourable
electrochemical
properties.
However,
thermal
instability
high
costs
necessitate
exploration
alternative
like
lithium-rich
layered
oxides
poly-anion
compounds
which
enhance
safety
density.
The
drive
cleaner
is
never
over-emphasized,
with
global
shift
from
fossil-based
fuels,
more
sources
are
investigated
find
sustainable
durable
ensuring
demands
met
primary
source
such
endeavour.
Recently,
development
high-capacity
lithium-nickel-cobalt-aluminum
oxide
(NCA)
advanced
composite
structures
shows
improved
conductivity
structural
integrity
during
charge-discharge
cycle.
These
innovations
aim
balance
performance
cost-effectiveness.
made
available
details
material
composition,
types
limitations
adoption
researchers,
students
industry.
Язык: Английский
Overview of Electrolyte Additives for Lithium-Ion Batteries
Опубликована: Апрель 14, 2025
This
article
comprehensively
reviews
the
research
progress
and
application
prospects
of
lithium
-
ion
battery
electrolyte
additives.
These
additives
play
a
crucial
role
in
improving
energy
density,
cycle
life,
safety
through
interfacial
chemical
regulation.
Key
consist
film
formers
(e.g.,
VC,
DFEC),
high
voltage
stabilizers
LiDFOB),
conductivity
enhancers
γ
cyclodextrin),
flame
retardants,
overcharge
preventatives.
They
sig-nifi-cantly
enhance
performance
by
forming
stable
CEI/SEI
films,
sup-press-ing
decomposition,
optimizing
deposition
kinetics.
Язык: Английский
Ion transport mechanism in sodium-ion batteries: Fundamentals, applications, and future trends
Journal of Energy Storage,
Год журнала:
2025,
Номер
122, С. 116616 - 116616
Опубликована: Апрель 15, 2025
Язык: Английский
A systematic implementation of the solid electrolyte interphase layer and study of its impact on lithium plating morphology in lithium metal batteries
Journal of Energy Storage,
Год журнала:
2025,
Номер
122, С. 116731 - 116731
Опубликована: Апрель 22, 2025
Язык: Английский
Game changers: scavenging materials for nonaqueous rechargeable battery applications
eScience,
Год журнала:
2025,
Номер
unknown, С. 100411 - 100411
Опубликована: Апрель 1, 2025
Язык: Английский
Synergistic Additives Design for High‐Voltage and Broad‐Temperature Propylene Carbonate‐Based Electrolytes in Practical Lithium‐Ion Batteries
ChemElectroChem,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 6, 2025
Lithium‐ion
batteries
(LIBs),
widely
used
in
electric
vehicles
(EVs)
and
other
applications,
are
increasingly
expected
to
deliver
higher
energy
densities
stable
performance
over
a
wide
temperature
range,
posing
stringent
challenges
for
advanced
electrolyte
design.
However,
achieving
these
properties
remains
challenging
with
currently
commercialized
ethylene
carbonate
(EC)‐based
electrolytes.
Herein,
propylene
(PC)‐based
system
is
reported,
employing
hexafluorobenzene
(HFB)
fluoroethylene
(FEC)
as
synergistic
additives.
Specifically,
HFB
facilitates
compatibility
graphite
anodes
through
selective
interfacial
adsorption,
while
the
decomposition
of
FEC
stabilizes
solid
interphase
(SEI),
mitigating
formation
high‐impedance
interfaces.
This
tailored
exhibits
superior
ionic
conductivity,
excellent
oxidative
stability,
broad
tolerance.
When
validated
at
4.5
V,
high‐loading
NCM811/graphite
cells
achieve
nearly
full
capacity
100
cycles
low
temperatures
(−20
°C),
pouch
retaining
80%
their
after
470
cycles.
These
findings
underscore
effectiveness
strategic
additive
engineering
advancing
development
PC‐based
electrolytes
practical
LIBs.
Язык: Английский
Challenges and Issues Facing Ultrafast-Charging Lithium-Ion Batteries
Batteries,
Год журнала:
2025,
Номер
11(6), С. 209 - 209
Опубликована: Май 26, 2025
Ultrafast-charging
(UFC)
technology
for
electric
vehicles
(EVs)
and
energy
storage
devices
has
brought
with
it
an
increase
in
demand
lithium-ion
batteries
(LIBs).
However,
although
they
pose
advantages
driving
range
charging
time,
LIBs
face
several
challenges
such
as
mechanical
degradation,
lithium
dendrite
formation,
electrolyte
decomposition,
concerns
about
thermal
runaway
safety.
This
review
evaluates
the
key
advances
LIB
components
(anodes,
cathodes,
electrolytes,
separators,
binders),
alongside
innovations
protocols
safety
concerns.
Material-level
solutions
nanostructuring,
doping,
composite
architectures
are
investigated
to
improve
ion
diffusion,
conductivity,
electrode
stability.
Electrolyte
modifications,
separator
enhancements,
binder
optimizations
discussed
terms
of
their
roles
reducing
high-rate
degradation.
Furthermore,
addressed;
adjustments
can
reduce
electrochemical
stress
on
LIBs,
decreasing
capacity
fade
while
providing
rapid
charging.
highlights
technological
advancements
that
enabling
ultrafast
assisting
us
overcoming
severe
limitations,
paving
way
development
next-generation
high-performance
LIBs.
Язык: Английский
SiO2/C double-layer-coated SiO as a high-performance anode for lithium-ion batteries
Materials Letters,
Год журнала:
2024,
Номер
379, С. 137650 - 137650
Опубликована: Ноя. 2, 2024
Язык: Английский
Mesh-Supported Porous Film as a Reservoir for Insoluble Additives and Facilitator of Stable Li Accommodation in Li-Metal Anodes
ACS Applied Energy Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 28, 2024
An
anode
structure
is
proposed
for
Li-metal
secondary
batteries.
The
comprises
a
porous
film
that
serves
as
reservoir
to
continuously
supply
electrolyte-insoluble
additives
and
mesh-type
spacer
mechanically
supports
the
also
provides
space
stable
Li
storage.
Specifically,
LiNO3,
an
effective
additive
controlling
solid–electrolyte
interphase
(SEI)
layer
of
but
barely
soluble
in
commercial
electrolytes
using
carbonate-based
ester
solvents,
embedded
polymer
achieving
its
continuous
supply.
prepared
be
ensure
Li-ion
transport.
However,
increased
porosity
high
content
degrade
physical
stability
flexibility
film.
To
counteract
this,
mesh
integrated
into
mechanical
support,
realizing
LiNO3
loading
porosity,
which
are
crucial
sufficient
transport
kinetics.
Additionally,
fixed-height
accommodation,
maintaining
consistent
electrode
thickness
during
charge/discharge
processes.
This
structure,
realized
through
low-cost
simple
process,
addresses
technical
challenges
SEI
control
stabilization
anodes,
offering
practical
solution
Язык: Английский