Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 1, 2025
Abstract
Research
into
the
development
and
understanding
of
solid‐state
batteries
often
relies
on
pelletized
press
cells
due
to
their
comparative
ease
use.
However,
these
model
are
prone
comparability
reproducibility
issues.
This
study
examines
extent
which
cathode
composite
preparation
influences
cell
performance
a
reference
system
comprising
LiNi
0.82
Mn
0.07
Co
0.11
O
2
as
active
material,
Li
6
PS
5
Cl
solid
electrolyte,
carbon
nanofibers
conductive
additive,
an
indium–lithium
foil
anode.
The
is
prepared
either
via
hand
mortaring
or
in
mini
vibrating
mill.
mixing
process
found
be
critical
for
accounts
many
discrepancies
observed
capacities
different
made
with
identical
materials
following
same
assembly
protocol.
open‐circuit
relaxation
method
implemented
quantify
mass
utilization
situ,
depends
correlates
performance.
approach
allows
quantitative
differentiation
between
static
kinetic
capacity
losses
during
discussion
specific
values.
results
demonstrate
significance
necessity
quantifying
quality
reliable
electrochemical
data
acquisition
interpretation.
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.
Nature Communications,
Год журнала:
2023,
Номер
14(1)
Опубликована: Апрель 6, 2023
Oxide
solid
electrolytes
(OSEs)
have
the
potential
to
achieve
improved
safety
and
energy
density
for
lithium-ion
batteries,
but
their
high
grain-boundary
(GB)
resistance
is
a
general
bottleneck.
In
most
well
studied
perovskite
OSE,
Li3xLa2/3-xTiO3
(LLTO),
ionic
conductivity
of
GBs
about
three
orders
magnitude
lower
than
that
bulk.
contrast,
related
Li0.375Sr0.4375Ta0.75Zr0.25O3
(LSTZ0.75)
exhibits
low
GB
reasons
yet
unknown.
Here,
we
used
aberration-corrected
scanning
transmission
electron
microscopy
spectroscopy,
along
with
an
active
learning
moment
tensor
potential,
reveal
atomic
scale
structure
composition
LSTZ0.75
GBs.
Vibrational
loss
spectroscopy
applied
first
time
characterize
otherwise
unmeasurable
Li
distribution
in
LSTZ0.75.
We
found
depletion,
which
major
reason
LLTO,
absent
Instead,
resistivity
attributed
formation
unique
defective
cubic
interfacial
contained
abundant
vacancies.
Our
study
provides
insights
into
mechanisms
sheds
light
on
possible
paths
designing
OSEs
total
conductivity.
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(50)
Опубликована: Сен. 7, 2023
Abstract
The
practical
application
of
solid‐state
lithium‐metal
batteries
(SSLMBs)
based
on
polymer
solid
electrolytes
has
been
hampered
by
their
low
ion
conductivity
and
lithium‐dendrite‐induced
short
circuits.
This
study
innovatively
introduces
1D
ferroelectric
ceramic‐based
Bi
4
Ti
3
O
12
‐BiOBr
heterojunction
nanofibers
(BIT‐BOB
HNFs)
into
poly(ethylene
oxide)
(PEO)
matrix,
constructing
lithium‐ion
conduction
highways
with
“dissociators”
“accelerating
regions.”
BIT‐BOB
HNFs,
as
ceramic
fillers,
not
only
can
construct
long‐range
organic/inorganic
interfaces
transport
pathways,
but
also
install
regions”
for
these
pathways
through
the
electric
dipole
layer
built‐in
field
promoting
dissociation
lithium
salts
transfer
ions.
working
mechanisms
HNFs
in
matrix
are
verified
experimental
tests
density
functional
theory
calculations.
obtained
composite
exhibit
excellent
migration
number
(6.67
×
10
−4
S
cm
−1
0.54
at
50
°C,
respectively).
assembled
symmetric
battery
achieves
good
cycling
stability
over
4500
h.
LiFePO
||Li
full
delivers
a
high
Coulombic
efficiency
(>99.9%)
discharge
capacity
retention
rate
(>87%)
after
2200
cycles.
In
addition,
prepared
electrolyte
demonstrates
potential
flexible
pouch
batteries.
Batteries,
Год журнала:
2024,
Номер
10(1), С. 29 - 29
Опубликована: Янв. 17, 2024
The
primary
goal
of
this
review
is
to
provide
a
comprehensive
overview
the
state-of-the-art
in
solid-state
batteries
(SSBs),
with
focus
on
recent
advancements
solid
electrolytes
and
anodes.
paper
begins
background
evolution
from
liquid
electrolyte
lithium-ion
advanced
SSBs,
highlighting
their
enhanced
safety
energy
density.
It
addresses
increasing
demand
for
efficient,
safe
storage
applications
like
electric
vehicles
portable
electronics.
A
major
part
analyzes
electrolytes,
key
SSB
technology.
classifies
as
polymer-based,
oxide-based,
sulfide-based,
discussing
distinct
properties
application
suitability.
also
covers
anode
materials
exploring
lithium
metal,
silicon,
intermetallic
compounds,
focusing
capacity,
durability,
compatibility
electrolytes.
challenges
integrating
these
materials,
interface
stability
dendrite
growth.
This
includes
discussion
latest
analytical
techniques,
experimental
studies,
computational
models
understand
improve
anode–solid
interface.
These
are
crucial
tackling
interfacial
resistance
ensuring
SSBs’
long-term
efficiency.
Concluding,
suggests
future
research
development
directions,
potential
revolutionizing
technologies.
serves
vital
resource
academics,
researchers,
industry
professionals
battery
technology
development.
offers
detailed
technologies
shaping
future,
providing
insights
into
current
solutions
rapidly
evolving
field.
