Advanced Energy Materials,
Journal Year:
2023,
Volume and Issue:
14(3)
Published: Nov. 27, 2023
Abstract
Replacing
liquid
electrolytes
with
solid‐state
polymer
(SPEs)
can
solve
the
safety
hazards
of
Li
metal
batteries
(LMBs)
while
increasing
their
energy
density.
However,
there
has
been
limited
success
so
far
in
preparing
advanced
SPEs
controllable
molecular
structure
and
chemical
composition,
posing
great
obstacles
to
further
promoting
its
application
LMBs.
Recently,
ring‐opening
polymerization
(ROP),
including
cationic
ROP,
anionic
metathesis
polymerization,
become
a
dazzling
new
star
achieving
due
mild
conditions
composition
(molecular
structure,
functional
group),
etc.
Besides,
is
no
small
molecule
released
during
process,
which
means
reduced
interfacial
side
reaction.
Hence,
this
review,
merits
ROP
mechanism
as
well
interfering
factors,
etc
are
evaluated
from
perspective
synthetic
chemistry.
Furthermore,
review
focuses
on
outlining
existing
cases
related
much
possible
summarize
them
different
ring
structures
(from
triple
multivariate
ring)
methods,
hoping
provide
comprehensive
understanding
serve
strategic
guidance
for
designing
high‐performance
SPEs.
Challenges
opportunities
regarding
burgeoning
field
also
discussed
at
end.
Chemical Science,
Journal Year:
2024,
Volume and Issue:
15(30), P. 12108 - 12117
Published: Jan. 1, 2024
This
work
proposes
a
film-forming
Lewis
acid
additive
to
promote
the
in
situ
polymerization
of
1,3-dioxane
and
formation
fluorine/boron
rich
interface,
which
enhance
cycling
stability
lithium
metal
batteries.
Interdisciplinary materials,
Journal Year:
2023,
Volume and Issue:
2(4), P. 609 - 634
Published: July 1, 2023
Abstract
The
application
of
lithium‐based
batteries
is
challenged
by
the
safety
issues
leakage
and
flammability
liquid
electrolytes.
Polymer
electrolytes
(PEs)
can
address
to
promote
practical
use
lithium
metal
batteries.
However,
traditional
preparation
PEs
such
as
solution‐casting
method
requires
a
complicated
process,
especially
resulting
in
side
solvents
evaporation
issues.
large
thickness
reduces
energy
density
battery
increases
transport
bottlenecks
lithium‐ion.
Meanwhile,
it
difficult
fill
voids
electrodes
achieve
good
contact
between
electrolyte
electrode.
In
situ
polymerization
appears
facile
prepare
possessing
excellent
interfacial
compatibility
with
electrodes.
Thus,
thin
uniform
be
obtained.
impedance
reduced,
lithium‐ion
throughput
at
interface
increased.
typical
process
implant
precursor
solution
containing
monomers
into
cell
then
solidify
under
specific
initiating
conditions,
has
been
widely
applied
for
assembly.
this
review,
we
focus
on
gel
polymer
electrolytes,
solid
composite
which
different
kinds
reactions
are
discussed.
addition,
various
compositions
structures
inorganic
fillers,
their
effects
electrochemical
properties
summarized.
Finally,
challenges
perspectives
methods
solid‐state
reviewed.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(17)
Published: March 6, 2024
Abstract
Solid‐state
lithium
metal
batteries
(LMBs),
constructed
through
the
in
situ
fabrication
of
polymer
electrolytes,
are
considered
a
critical
strategy
for
next‐generation
battery
systems
with
high
energy
density
and
enhanced
safety.
However,
constrained
oxidation
stability
polymers,
such
as
extensively
utilized
polyethers,
limits
their
applications
high‐voltage
further
improvements.
Herein,
an
fabricated
fluorinated
crosslinked
polyether‐based
gel
electrolyte,
FGPE,
is
presented,
exhibiting
potential
(5.1
V).
The
polyether
significantly
improves
compatibility
both
cathode,
attributed
to
electron‐withdrawing
−CF
3
group
generated
LiF‐rich
electrolyte/electrode
interphase.
Consequently,
solid‐state
Li||LiNi
0.6
Co
0.2
Mn
O
2
employing
FGPE
demonstrate
exceptional
cycling
performances
1000
cycles
78
%
retention,
representing
one
best
results
ever
reported
electrolytes.
Moreover,
enables
operate
at
4.7
V,
realizing
highest
operating
voltage
date.
Notably,
our
designed
provides
even
practical
conditions,
including
cathode
loading
(21
mg
cm
−2
)
industry‐level
18650‐type
cylindrical
cells
(1.3
Ah,
500
cycles).
This
work
insights
into
development
oxidation‐stable
electrolytes
advancement
LMBs.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(34)
Published: June 4, 2024
Solid
polymer
electrolytes
are
promising
for
safe
and
high-energy-density
lithium
metal
batteries.
However,
traditional
ether-based
limited
by
their
low
lithium-ion
conductivity
narrow
electrochemical
window
because
of
the
well-defined
intimated
Li
Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
16(1)
Published: Jan. 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
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(24)
Published: Feb. 16, 2024
Abstract
Polyethylene
oxide
(PEO)
solid
electrolytes
are
regarded
as
a
promising
candidate
for
all‐solid‐state
lithium
batteries
owing
to
their
high
safety
and
interfacial
compatibility.
However,
PEO
electrolyte
is
plagued
by
relatively
weak
structural
strength
unsatisfactory
Li
+
conductivity.
Herein,
mechanically
strong
conductively
favorable
cellulosic
scaffold
of
fabricated
through
amino
(‐NH
2
)
modification
g‐C
3
N
4
(CN)
incorporation
bacterial
cellulose
(BC)
under
microbial
circumstance.
The
biologically
‐NH
modified
BC
(B‐NBC)
entangled
with
CN
nanosheets
(CN@B‐NBC)
an
in
situ
secretion
nanocellulose
followed
hydrogen
bond‐induced
self‐assembly.
groups
from
B‐NBC
weaken
the
complexation
its
counterpart,
thus
facilitating
release
more
free
.
C‐N
covalence
extra
lone
electrons
further
strengthens
skeleton
meanwhile
offers
sufficient
anchors
migration.
After
infiltrating
LiTFSI/PEO
(LP),
LP/CN@B‐NBC
composite
(CSE)
exhibits
transference
number
ionic
Upon
coupling
LiFePO
cathode,
full
battery
remarkably
specific
capacity,
superior
rate
capability,
decent
cycling
stability.
This
work
pioneers
attempts
chemical
decoration
ingredient
architecture
CSE
aid
bottom‐up
biosynthetic
avenue.
