Advanced Nanocomposites,
Год журнала:
2024,
Номер
1(1), С. 120 - 143
Опубликована: Янв. 1, 2024
Lithium
metal
batteries
have
gained
significant
attention
due
to
their
high
energy
density,
making
them
a
promising
candidate
for
various
applications,
including
electric
vehicles
and
grid-scale
storage.
Nevertheless,
the
practical
development
of
lithium
faces
challenges
related
dendrite
formation,
low
cycling
efficiency,
poor
safety
use
liquid
electrolytes.
Solid-state
electrolytes
(SSEs)
are
most
attractive
alternatives
next-generation
safe
high-energy
density
storage
systems.
However,
conventional
SSEs
fail
meet
simultaneous
demands
ionic
conductivity
mechanical
properties,
intrinsic
solid-state
chemical
properties.
Among
numerous
modifying
strategies
SSE
chemistry,
composite
polymer
(CPEs)
with
advanced
nanocomposite
design
display
suitable
processability,
wettability,
flexibility,
cost
production.
This
review
comprehensively
outlines
merits
functions
designs
in
CPEs.
provides
valuable
insights
into
recent
progress
electrolytes,
offering
guidance
future
research
efforts
this
field.
Advanced Materials,
Год журнала:
2024,
Номер
36(27)
Опубликована: Апрель 16, 2024
Abstract
The
lignin
derived
ultrathin
all‐solid
composite
polymer
electrolyte
(CPE)
with
a
thickness
of
only
13.2
µm,
which
possess
3D
nanofiber
ionic
bridge
networks
composed
single‐ion
lignin‐based
lithium
salt
(L‐Li)
and
poly(vinylidene
fluoride‐
co
‐hexafluoropropylene)
(PVDF‐HFP)
as
the
framework,
poly(ethylene
oxide)/lithium
bis(trifluoromethanesulfonyl)imide
(PEO/LiTFSI)
filler,
is
obtained
through
electrospinning/spraying
hot‐pressing.
t.
Li‐symmetric
cell
assembled
CPE
can
stably
cycle
more
than
6000
h
under
0.5
mA
cm
−2
little
Li
dendrites
growth.
Moreover,
Li||CPE||LiFePO
4
cells
over
700
cycles
at
0.2
C
super
high
initial
discharge
capacity
158.5
mAh
g
−1
room
temperature,
favorable
123
−20
°C
for
250
cycles.
excellent
electrochemical
performance
mainly
attributed
to
reason
that
network
afford
uniformly
dispersed
L‐Li
electrospinning,
synergizes
LiTFSI
well
in
PEO
form
abundant
efficient
+
transfer
channels.
induces
uniform
deposition
interface,
effectively
inhibit
dendrites.
This
work
provides
promising
strategy
achieve
biobased
electrolytes
solid‐state
ion
batteries.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(30)
Опубликована: Май 7, 2024
Polyethylene
oxide
(PEO)-based
solid-state
batteries
hold
great
promise
as
the
next-generation
with
high
energy
density
and
safety.
However,
PEO-based
electrolytes
encounter
certain
limitations,
including
inferior
ionic
conductivity,
low
Li
Advanced Materials,
Год журнала:
2024,
Номер
36(27)
Опубликована: Апрель 7, 2024
Abstract
Composite
polymer
solid
electrolytes
(CPEs),
possessing
good
rigid
flexible,
are
expected
to
be
used
in
solid‐state
lithium‐metal
batteries.
The
integration
of
fillers
into
matrices
emerges
as
a
dominant
strategy
improve
Li
+
transport
and
form
‐conducting
electrode–electrolyte
interface.
However,
challenges
arise
traditional
fillers:
1)
inorganic
fillers,
characterized
by
high
interfacial
energy,
induce
agglomeration;
2)
organic
with
elevated
crystallinity,
impede
intrinsic
ionic
conductivity,
both
severely
hindering
migration.
Here,
concept
super‐ionic
conductor
soft
filler,
utilizing
conductivity
nanocellulose
(Li‐NC)
model,
is
introduced
which
exhibits
conductivity.
Li‐NC
anchors
anions,
enhances
speed,
assists
the
cathode–electrolyte
electrodes
for
room
temperature
tough
dual‐channel
electrolyte
(TDCT)
polyvinylidene
fluoride
(PVDF)
demonstrates
transfer
number
(0.79)
due
synergistic
coordination
mechanism
transport.
Integrated
electrodes’
design
enables
stable
performance
LiNi
0.5
Co
0.2
Mn
0.3
O
2
|Li
cells,
720
cycles
at
C,
88.8%
capacity
retention.
Furthermore,
lifespan
Li|TDCT|Li
cells
over
4000
h
Li‐rich
1.2
Ni
0.13
0.54
excellent
performance,
proving
practical
application
potential
filler
energy
density
batteries
temperature.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(24)
Опубликована: Апрель 13, 2024
The
development
of
highly
producible
and
interfacial
compatible
in
situ
polymerized
electrolytes
for
solid-state
lithium
metal
batteries
(SSLMBs)
have
been
plagued
by
insufficient
transport
kinetics
uncontrollable
dendrite
propagation.
Herein,
we
seek
to
explore
a
rationally
designed
nanofiber
architecture
balance
all
the
criteria
SSLMBs,
which
La
eScience,
Год журнала:
2024,
Номер
unknown, С. 100278 - 100278
Опубликована: Май 1, 2024
Solid-state
lithium
battery
(SSLB)
is
considered
as
one
of
the
promising
candidates
for
next-generation
power
batteries
due
to
high
safety,
unprecedented
energy
density
and
favorable
adaptability
pression
temperature.
However,
system
solid
electrolyte
(SE),
most
important
components
in
SSLB,
usually
plagued
by
clumsy
ionic
transport,
leading
poor
rate
performance
SSLBs.
Herein,
a
unique
perspective
proposed
re-examine
ion-transport
behavior
conductors
tracing
Li+
at
multi-scale,
including
microscopic,
mesoscopic
macroscopic
scales.
The
multi-scale
mechanisms
corresponding
characterization
techniques
are
analyzed
depth.
Furthermore,
some
strategies
structure
design
improve
kinetics
scales
elaborated
systematically,
involving
modulation
microscopic
homogeneous
structure,
heterogeneous
structures,
etc.
generalized
rules
SEs
expected
construct
close
link
from
mechanism−structure−characterization
performances
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(21)
Опубликована: Март 28, 2024
Abstract
The
generation
of
solid
electrolyte
interphase
(SEI)
largely
determines
the
comprehensive
performance
all‐solid‐state
batteries.
Herein,
a
novel
“carrier‐catalytic”
integrated
design
is
strategically
exploited
to
in
situ
construct
stable
LiF‐LiBr
rich
SEI
by
improving
electron
transfer
kinetics
accelerate
bond‐breaking
dynamics.
Specifically,
high
transport
capacity
Br‐TPOM
skeleton
increases
polarity
C−Br,
thus
promoting
LiBr.
Then,
enhancement
further
promotes
fracture
C−F
from
TFSI
−
form
LiF.
Finally,
and
homogeneous
artificial‐SEI
with
enriched
lithium
dihalide
constructed
through
co‐growth
mechanism
LiF
LiBr,
which
facilitatse
Li‐ion
regulates
deposition
behavior.
Impressively,
PEO‐Br‐TPOM
paired
LiFePO
4
delivers
ultra‐long
cycling
stability
over
1000
cycles
81
%
retention
at
1
C
while
pouch
cells
possess
88
superior
after
550
initial
discharge
145
mAh
g
−1
0.2
absence
external
pressure.
Even
under
stringent
conditions,
practical
electric
quantities
plateau
30
demonstrates
its
application
potential
energy
storage
field.
Angewandte Chemie,
Год журнала:
2024,
Номер
136(21)
Опубликована: Март 28, 2024
Abstract
The
generation
of
solid
electrolyte
interphase
(SEI)
largely
determines
the
comprehensive
performance
all‐solid‐state
batteries.
Herein,
a
novel
“carrier‐catalytic”
integrated
design
is
strategically
exploited
to
in
situ
construct
stable
LiF‐LiBr
rich
SEI
by
improving
electron
transfer
kinetics
accelerate
bond‐breaking
dynamics.
Specifically,
high
transport
capacity
Br‐TPOM
skeleton
increases
polarity
C−Br,
thus
promoting
LiBr.
Then,
enhancement
further
promotes
fracture
C−F
from
TFSI
−
form
LiF.
Finally,
and
homogeneous
artificial‐SEI
with
enriched
lithium
dihalide
constructed
through
co‐growth
mechanism
LiF
LiBr,
which
facilitatse
Li‐ion
regulates
deposition
behavior.
Impressively,
PEO‐Br‐TPOM
paired
LiFePO
4
delivers
ultra‐long
cycling
stability
over
1000
cycles
81
%
retention
at
1
C
while
pouch
cells
possess
88
superior
after
550
initial
discharge
145
mAh
g
−1
0.2
absence
external
pressure.
Even
under
stringent
conditions,
practical
electric
quantities
plateau
30
demonstrates
its
application
potential
energy
storage
field.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(36)
Опубликована: Июнь 17, 2024
A
critical
challenge
in
solid
polymer
lithium
batteries
is
developing
a
matrix
that
can
harmonize
ionic
transportation,
electrochemical
stability,
and
mechanical
durability.
We
introduce
novel
design
by
deciphering
the
structure-function
relationships
of
side
chains.
Leveraging
molecular
orbital-polarity-spatial
freedom
strategy,
high
ion-conductive
hyperelastic
ternary
copolymer
electrolyte
(CPE)
synthesized,
incorporating
three
functionalized
chains
poly-2,2,2-Trifluoroethyl
acrylate
(PTFEA),
poly(vinylene
carbonate)
(PVC),
polyethylene
glycol
monomethyl
ether
(PEGMEA).
It
revealed
fluorine-rich
chain
(PTFEA)
contributes
to
improved
stability
interfacial
compatibility;
highly
polar
(PVC)
facilitates
efficient
dissociation
migration
ions;
flexible
(PEGMEA)
with
spatial
promotes
segmental
motion
interchain
ion
exchanges.
The
resulting
CPE
demonstrates
an
conductivity
2.19×10
Journal of Materials Chemistry A,
Год журнала:
2024,
Номер
12(26), С. 16022 - 16033
Опубликована: Янв. 1, 2024
Herein,
PEO-based
composite
polymer
electrolytes
enhanced
by
Janus
nanofibers
with
multiple
Li
+
transport
channels
and
outstanding
thermal
stability
were
prepared,
which
exhibit
ultra-long
cycle
in
all-solid-state
lithium
metal
batteries.