ACS Nano,
Год журнала:
2024,
Номер
18(34), С. 23253 - 23264
Опубликована: Авг. 15, 2024
Solid
polymer
electrolytes
(SPEs)
represent
a
pivotal
advance
toward
high-energy
solid-state
lithium
metal
batteries.
However,
inadequate
interfacial
contact
remains
significant
bottleneck,
impeding
scalability
and
application.
Inadequate
Recent
efforts
have
focused
on
transforming
liquid/solid
interfaces
into
solid/solid
ones
through
in
situ
polymerization,
which
shows
potential
especially
reducing
interface
impedance.
Here,
we
designed
high-voltage
SSLMBs
with
dual-reinforced
stable
by
combining
modification
an
polymerization
technology
inspired
targeted
effects
medicine.
Theoretical
calculations
time-of-flight
secondary
ion
mass
spectrometry
(TOF-SIMS)
analysis
demonstrate
that
tetramethylene
sulfone
(TMS)
bis(2,2,2-trifluoromethyl)
carbonate
(TFEC)
exhibit
selective
adsorption
at
the
of
LiNi
Advanced Energy Materials,
Год журнала:
2022,
Номер
12(32)
Опубликована: Июль 14, 2022
Abstract
High‐voltage
lithium
polymer
cells
are
considered
an
attractive
technology
that
could
out‐perform
commercial
lithium‐ion
batteries
in
terms
of
safety,
processability,
and
energy
density.
Although
significant
progress
has
been
achieved
the
development
electrolytes
for
high‐voltage
applications
(>
4
V),
cell
performance
containing
these
materials
still
encounters
certain
challenges.
One
major
limitations
is
posed
by
poor
cyclability,
which
affected
low
oxidative
stability
standard
polyether‐based
electrolytes.
In
addition,
high
reactivity
structural
instability
common
cathode
chemistries
further
aggravate
this
review,
comprehensively
discussed,
along
with
key
sources
degradation,
provides
overview
fundamental
strategies
adopted
enhancing
their
cyclability.
regard,
a
statistical
analysis
provided
analyzing
186
publications
reported
last
17
years,
to
demonstrate
gap
between
state‐of‐the‐art
requirements
high‐energy
density
cells.
Furthermore,
essential
characterization
techniques
employed
prior
research
investigating
degradation
systems
discussed
highlight
prospects
limitations.
Based
on
derived
conclusions,
new
targets
guidelines
proposed
research.
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(20)
Опубликована: Фев. 26, 2023
Abstract
Solid‐state
lithium
batteries
have
become
the
focus
of
next‐generation
high‐safety
due
to
their
dimensional,
thermal,
and
electrochemical
stability.
Thus,
progress
solid
electrolytes
with
satisfactory
comprehensive
performances
has
key
promoting
development
batteries.
Herein,
poly(vinylidene
fluoride)
(PVDF)
polymer
(SPEs)
possess
excellent
flexibility,
mechanical
property,
high
thermal
stability,
which
show
huge
application
potentiality
in
solid‐state
obtain
extensive
research.
But
PVDF
SPEs
been
suffering
from
low
ionic
conductivity,
crystallinity,
reactive
sites.
The
PVDF‐based
composite
(CSPEs)
confirmed
be
a
forceful
strategy
optimize
performance
electrolytes.
In
this
review,
based
on
different
design
strategies,
recent
is
introduced
detail,
especially
mechanism
conductivity
enhancement
interface
regulation
by
modified
fillers.
Besides,
applications
Li‐S
Li‐O
2
battery
systems
are
also
introduced.
Finally,
review
presents
some
insights
for
high‐performance
SPEs.
Advanced Energy Materials,
Год журнала:
2024,
Номер
14(22)
Опубликована: Март 5, 2024
Abstract
The
practical
application
of
polymer
electrolytes
is
hindered
due
to
the
low
ionic
conductivity
and
interfacial
instability
between
electrodes.
Herein,
a
strategy
for
designing
solid
developed
that
facilitates
rapid
lithium‐ion
migration
through
weak
coordination
with
chain
segments,
as
well
fast
ion
channel
transport
oligomers.
Moreover,
in
situ‐produced
electrolyte
(PFVS)
can
form
stable
LiF‐rich
interfaces
both
lithium
metal
anode
different
cathodes.
When
PFVS
applied
Li‐metal
batteries,
excellent
properties
are
achieved
at
room
temperature.
A
Li||Li
symmetric
cell
be
stably
cycled
4000
h
current
density
0.1
mA
cm
−1
,
Li||LiFePO
4
full
maintain
capacity
retention
high
still
94.4%
after
600
cycles
1
C,
Li||NCM811
retain
80%
180
C.
2.6
Ah
Graphite|PFVS|NCM90
pouch
made
demonstrating
potential,
it
also
cycled.
provides
promising
path
effectively
extend
lifespan
Li
batteries.
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(18)
Опубликована: Фев. 7, 2023
Abstract
Composite
polymer
electrolytes
(CSEs)
that
simultaneously
possess
superior
electrochemical
performances
with
robust
mechanical
properties
are
highly
desired
to
the
application
of
high‐energy
lithium
metal
batteries.
Herein,
a
novel
dual‐polymer@inorganic
network
CSE
(DNSE@IN)
through
sequential
nonhydrolytic
sol‐gel
reaction
tetraethoxysilane
(TEOS)
and
semi‐interpenetration
poly(vinylidene
fluoride‐co‐hexafluoropropene)‐hexafluoropropylene
(P(VDF‐HFP))
poly(ionic
liquid)
(PIL)
is
proposed.
DNSE@IN,
which
has
networks,
not
only
high
ionic
conductivity
(0.53
mS
cm
−1
at
20
°C),
but
also
exhibits
an
outstanding
Young's
modulus
723.2
MPa.
As
result,
DNSE@IN
based
Li/LiFePO
4
Li/Li
1.17
Ni
0.27
Co
0.05
Mn
0.52
O
2
(Li‐rich)
cells
exhibit
remarkable
cycling
stability
from
room
temperature
(RT)
100
°C.
As‐assembled
Li/Li‐rich
battery
shows
cyclability
194.3
mAh
g
after
70
cycles
4.3
V
under
RT.
Additionally,
scale‐up
high‐voltage
pouch
excellent
(nearly
100%
capacity
retention
93
cycles)
flexibility,
safety
RT
for
potential
practical
applications.
such,
work
decoupling
opens
route
develop
CSEs
construction
Abstract
Composite
solid
electrolytes
are
considered
to
be
the
crucial
components
of
all‐solid‐state
lithium
batteries,
which
viewed
as
next‐generation
energy
storage
devices
for
high
density
and
long
working
life.
Numerous
studies
have
shown
that
fillers
in
composite
can
effectively
improve
ion‐transport
behavior,
essence
lies
optimization
path
electrolyte.
The
performance
is
closely
related
structure
interaction
between
other
electrolyte
including
polymer
matrices
salts.
In
this
review,
dimensional
design
advanced
involving
0D–2D
nanofillers,
3D
continuous
frameworks
focused
on.
mechanism
highlighted.
addition,
sandwich‐structured
with
also
discussed.
Strategies
room
temperature
ionic
conductivity
summarized,
aiming
assist
target‐oriented
research
high‐performance
electrolytes.
Materials Chemistry Frontiers,
Год журнала:
2023,
Номер
7(7), С. 1268 - 1297
Опубликована: Янв. 1, 2023
Solid-state
electrolytes
attract
great
attention
due
to
their
advantages
in
safety,
electrochemical
stability
and
battery
packaging.
High-voltage
cathode
materials
the
Li
metal
anode
further
increase
energy
density
cycling
properties.
Nano-Micro Letters,
Год журнала:
2024,
Номер
16(1)
Опубликована: Янв. 12, 2024
Composite
solid
electrolytes
(CSEs)
have
emerged
as
promising
candidates
for
safe
and
high-energy-density
solid-state
lithium
metal
batteries
(SSLMBs).
However,
concurrently
achieving
exceptional
ionic
conductivity
interface
compatibility
between
the
electrolyte
electrode
presents
a
significant
challenge
in
development
of
high-performance
CSEs
SSLMBs.
To
overcome
these
challenges,
we
present
method
involving
in-situ
polymerization
monomer
within
self-supported
porous
Li
