Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 20, 2024
Abstract
Among
optimization
strategies
for
solving
the
poor
ion
transport
ability
and
electrolyte/electrode
interface
compatibility
problems
of
lithium
(Li)‐based
batteries,
halogen
elements,
such
as
fluorine
(F)
iodine
(I),
have
gradually
occupied
an
important
position
because
their
superb
electronegativity,
oxidizability,
ionic
radius,
other
properties.
The
study
commences
by
outlining
shared
mechanism
which
F
I
enhance
solid‐state
metal
batteries'
electrochemical
performance.
In
particular,
can
considerably
improve
capacity
through
chemical
means
intermolecular
interactions
halogenation
reactions.
Furthermore,
utilization
significantly
enhances
stability
via
physical
strategies,
encompassing
doping
techniques,
application
surface
coatings,
fabrication
synthetic
intermediate
layers.
Subsequently,
characteristics
used
in
Li‐based
batteries
are
elaborated
detail,
focusing
on
fact
that
provide
additional
energy
density
anode
material
but
different
mechanisms.
Additionally,
activate
dead
at
negative
electrode,
act
a
new
carrier.
Finally,
rational
concept
synergistic
effect
is
proposed
feasibility
F–I
bihalide
solid
electrolytes
explored.
Advanced Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 17, 2025
Abstract
The
development
of
high‐energy‐density
and
high‐safety
lithium‐ion
batteries
requires
advancements
in
electrolytes.
This
study
proposes
a
high‐entropy
ionic
liquid/ether
composite
electrolyte,
which
is
composed
N
‐propyl‐
‐methylpyrrolidinium
bis(trifluoromethanesulfonyl)imide
(PMP–TFSI)
liquid,
dimethoxymethane
(DME),
lithium
difluoro(oxalato)borate
(LiDFOB),
fluoroethylene
carbonate
(FEC),
1,1,2,2‐tetrafluoroethyl‐2,2,3,3‐tetrafluoropropyl
ether
(TTE).
In
this
unique
coordination
structure
forms,
where
Li
+
surrounded
by
highly
complex
environment
consisting
DME,
FEC,
TTE,
TFSI
−
,
DFOB
PMP
.
effects
solution
on
the
solid‐electrolyte
interphase
chemistry
desolvation
kinetics
are
examined.
proposed
electrolyte
has
low
flammability,
high
thermal
stability,
negligible
corrosivity
toward
an
Al
current
collector,
ability
to
withstand
potential
up
5
V.
Importantly,
compatible
with
graphite
SiO
x
anodes,
as
well
high‐nickel
LiNi
0.8
Co
0.1
Mn
O
2
cathode.
Operando
X‐ray
diffraction
data
confirm
that
co‐intercalation
DME
into
lattice,
long‐standing
challenge,
eliminated
electrolyte.
A
4.5‐V
//graphite
full
cell
shown
have
superior
specific
capacity,
rate
capability,
cycling
demonstrating
great
for
practical
applications.
Advanced Sustainable Systems,
Journal Year:
2024,
Volume and Issue:
8(11)
Published: June 29, 2024
Abstract
Sulfone
liquids
can
be
used
as
solvents
for
high‐voltage
electrolytes
and
have
been
extensively
studied
their
strong
oxidation
resistance.
However,
the
problem
of
high
viscosity
susceptibility
to
side
reactions
with
metallic
lithium
has
subject
criticism.
To
solve
issue
incompatibility
lithium,
researchers
adopted
a
high‐concentration
electrolyte,
namely
solvent‐in‐salt,
which
allows
anions
in
salt
preferentially
contact
surface
metal
react
form
an
SEI
film
block
reaction
between
sulfone
lithium.
is
particularly
severe.
This
work
proposes
new
solvent
model
called
“solvent‐in‐diluent”
electrolyte
address
both
these
issues
simultaneously,
different
from
previous
models
salt‐in‐solvent,
not
only
effectively
prevents
surfaces,
but
also
maintains
capacity
retention
rate
82%
after
500
cycles
voltage
range
2.8–4.6
V,
additionally,
temperature
battery
operate
using
this
extended
(−20–60°C).
challenges
minimum
concentration
(0.04
m
),
providing
approach
possibility
studying
electrolytes.
Small,
Journal Year:
2024,
Volume and Issue:
20(46)
Published: Aug. 7, 2024
Abstract
It
is
generally
accepted
that
the
low‐temperature
environment
typically
augments
electrolyte
viscosity
and
impedes
electrochemical
kinetics,
thereby
diminishing
battery
performance.
However,
this
prevailing
notion,
while
valid
in
certain
contexts,
lacks
universality,
particularly
regarding
cycling
stability.
In
context,
Na‐MoS
2
batteries
serve
as
a
model
to
elucidate
impacts
of
low
temperatures.
By
significantly
suppressing
pulverization
amorphization
MoS
,
milieu
effectively
mitigates
risk
micro‐short
circuits
induced
by
mass
shuttling
Na
metal
anode,
averting
performance
degradation
self‐discharge.
Upon
cycling,
generated
x
Mo
3
S
4
intermediates
only
at
temperatures
benefit
structural
stabilizations
counteract
intrinsic
degradation.
The
attenuation
kinetics
facilitates
accumulation
S,
akin
sustained‐release
agent
within
electrode,
steadily
furnishing
capacity
long
cycling.
Moreover,
suppression
polysulfide
dissolution
emerges
pivotal
factor
contributing
stability
low‐temperature.
These
findings
provide
rewarding
avenue
toward
understanding
influence
temperature
on
performance,
well
design
practical
electrodes
for
applications.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 20, 2024
Abstract
Among
optimization
strategies
for
solving
the
poor
ion
transport
ability
and
electrolyte/electrode
interface
compatibility
problems
of
lithium
(Li)‐based
batteries,
halogen
elements,
such
as
fluorine
(F)
iodine
(I),
have
gradually
occupied
an
important
position
because
their
superb
electronegativity,
oxidizability,
ionic
radius,
other
properties.
The
study
commences
by
outlining
shared
mechanism
which
F
I
enhance
solid‐state
metal
batteries'
electrochemical
performance.
In
particular,
can
considerably
improve
capacity
through
chemical
means
intermolecular
interactions
halogenation
reactions.
Furthermore,
utilization
significantly
enhances
stability
via
physical
strategies,
encompassing
doping
techniques,
application
surface
coatings,
fabrication
synthetic
intermediate
layers.
Subsequently,
characteristics
used
in
Li‐based
batteries
are
elaborated
detail,
focusing
on
fact
that
provide
additional
energy
density
anode
material
but
different
mechanisms.
Additionally,
activate
dead
at
negative
electrode,
act
a
new
carrier.
Finally,
rational
concept
synergistic
effect
is
proposed
feasibility
F–I
bihalide
solid
electrolytes
explored.
