Angewandte Chemie,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 30, 2024
Abstract
Sodium‐based
batteries
are
gaining
momentum
due
to
the
abundance
and
lower
cost
of
sodium
compared
lithium.
Solid‐state
can
also
provide
further
safety
advantages.
However,
sodium‐based
solid‐state
electrolytes
(SSEs)
that
meet
all
rigorous
requirements,
such
as
high
ionic
conductivity,
oxidative
stability
with
cathode,
ease
processability,
lacking.
We
present
here
a
new
class
oxyhalide
NaNbCl
6‐2x
O
x
facile
mechanochemical
synthesis.
The
4
exhibits
close
two
orders
magnitude
higher
ambient‐temperature
sodium‐ion
conductivity
(1.03×10
−4
S
cm
−1
)
halide
counterpart
6
(3×10
−6
).
Structural
motifs
unique
oxygen
content
in
identified
23
Na
93
Nb
magic
angle
spinning
nuclear
magnetic
resonance
(MAS
NMR)
spectroscopy
x‐ray
diffraction
(XRD).
assembled
electrolyte
cobalt‐
nickel‐free
layered
0.70
Fe
0.3
Mn
0.65
Al
0.05
2
cathode
exhibit
maximum
discharge
capacity
155
mAh
g
good
cycle
life
at
ambient
temperature.
ACS Energy Letters,
Год журнала:
2024,
Номер
9(8), С. 4093 - 4101
Опубликована: Июль 25, 2024
All-solid-state
sodium
batteries
(ASSSBs)
are
viable
candidates
for
large
scale
energy
storage
that
could
vie
with
lithium.
Ductile
solid
catholytes
such
cells
can
be
prepared
without
extensive
ball
milling
and
directly
paired
high
voltage
cathodes
lacking,
however.
We
report
a
new
amorphous
fast
Na-ion
conducting
metal
oxychloride
meets
these
criteria,
synthesized
through
scalable
low-cost
route
based
on
spontaneous
solid-state
reaction
simple
short
mixing
100
°C
annealing.
It
has
an
ionic
conductivity
of
1.2
mS·cm–1
low
activation
0.31
eV.
Due
to
its
dual
O2–/Cl–
framework,
it
exhibits
anodic
potential
4
V
vs
Na+/Na
good
chemical/electrochemical
compatibility
cathode
materials.
ASSSBs
consisting
the
electrolyte
P2–Na2/3Ni1/3Mn2/3O2
showed
stable
long-term
cycling
4.0
Na3Sn
cutoff
even
4.3
V.
Chemical Reviews,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 11, 2025
Solid
electrolytes,
as
the
core
of
all-solid-state
batteries
(ASSBs),
play
a
crucial
role
in
determining
kinetics
ion
transport
and
interface
compatibility
with
cathodes
anodes,
which
can
be
subdivided
into
catholytes,
bulk
anolytes
based
on
their
functional
characteristics.
Among
various
inorganic
solid
ductile
distinguished
from
rigid
oxide
exhibit
excellent
properties
even
under
cold
pressing,
thus
holding
greater
promise
for
industrialization.
However,
challenge
lies
finding
electrolyte
that
simultaneously
serve
catholyte,
electrolyte,
anolyte.
Fortunately,
due
to
immobility
combining
multiple
types
electrolytes
allows
leveraging
respective
advantages.
In
this
review,
we
discuss
five
sulfides,
halides,
nitrides,
antiperovskite-type,
complex
hydrides,
challenges
superiorities
these
are
also
addressed.
The
impact
pressure
ASSBs
has
been
systematically
discussed.
Furthermore,
suitability
anolyte
is
discussed
characteristics
physicochemical
properties.
This
discussion
aims
deepen
our
understanding
enabling
us
harness
advantages
develop
practical,
high-performance
ASSBs.
Advanced Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 25, 2024
Abstract
The
ability
to
rapidly
charge
batteries
is
crucial
for
widespread
electrification
across
a
number
of
key
sectors,
including
transportation,
grid
storage,
and
portable
electronics.
Nevertheless,
conventional
Li‐ion
with
organic
liquid
electrolytes
face
significant
technical
challenges
in
achieving
rapid
charging
rates
without
sacrificing
electrochemical
efficiency
safety.
Solid‐state
(SSBs)
offer
intrinsic
stability
safety
over
their
counterparts,
which
can
potentially
bring
exciting
opportunities
fast
applications.
Yet
realizing
fast‐charging
SSBs
remains
challenging
due
several
fundamental
obstacles,
slow
Li
+
transport
within
solid
electrolytes,
sluggish
kinetics
the
electrodes,
poor
electrode/electrolyte
interfacial
contact,
as
well
growth
dendrites.
This
article
examines
SSB
through
comprehensive
review
materials
strategies
(ceramics,
polymers,
composites),
composites.
In
particular,
methods
enhance
ion
crystal
structure
engineering,
compositional
control,
microstructure
optimization
are
analyzed.
also
addresses
interface/interphase
chemistry
mechanisms,
providing
insights
guide
material
design
interface
next‐generation
SSBs.
Crystals,
Год журнала:
2025,
Номер
15(5), С. 475 - 475
Опубликована: Май 17, 2025
Nowadays,
some
amorphous
and
microcrystalline
solid-state
electrolytes
(SSEs)
with
dual
anions
have
attained
high
ionic
conductivity
good
compatibility
electrodes
in
all-solid-state
lithium-ion
batteries
(ASSLIBs).
In
this
work,
crystalline
SSEs
of
series
A
(Li1+xTaO1+xCl4−x,
−0.70
≤
x
0.50)
B
(LiTaO2+yCl2−2y,
−1.22
y
0),
having
great
application
potential
well
over
ambient
temperatures,
were
prepared
at
260–460
°C
for
2–10
h
using
Li2O,
TaCl5,
LiTaO3
as
the
raw
materials.
The
three-phase
coexisting
samples
σ
values
ranging
from
5.20
to
7.35
mS
cm−1,
which
are
among
reported
co-essential
other
alloplasmatic
ones.
It
is
attributed
synergistic
effect
polyanion
trans-[O2Cl4]
cis-[O4Cl2]
octahedra
framework.
