Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 17, 2024
Abstract
Global
climate
change
necessitates
urgent
carbon
neutrality.
Energy
storage
is
crucial
in
this
effort,
but
adoption
hindered
by
current
battery
technologies
due
to
low
energy
density,
slow
charging,
and
safety
issues.
A
novel
liquid
metal
flow
using
a
gallium,
indium,
zinc
alloy
(Ga
80
In
10
Zn
,
wt.%)
introduced
an
alkaline
electrolyte
with
air
electrode.
This
system
offers
ultrafast
charging
comparable
gasoline
refueling
(<5
min)
as
demonstrated
the
repeated
long‐term
discharging
(123
h)
process
of
317
mAh
capacity
at
density
mA
cm
−2
average
voltage
1.1
V.
high
practical
635.1
g
−1
achieved
brand‐new
potential
theoretical
value
1004.4
.
Microscopic
numerical
simulations
reveal
significant
hydrogen
evolution
reaction
dendrite
suppression
compared
pure
Ga
electrodes.
The
potassium
iodide
(KI)‐modified
‐air
exhibits
reduced
1.77
V
efficiency
57%
over
800
cycles,
outperforming
conventional
Pt/C
Ir/C‐based
systems
22%
improvement.
innovative
addresses
limitations
traditional
lithium‐ion
batteries,
Zn‐air
contributing
advanced
global
Materials,
Journal Year:
2025,
Volume and Issue:
18(6), P. 1320 - 1320
Published: March 17, 2025
Nickel-rich
cathode
materials
have
emerged
as
ideal
candidates
for
electric
vehicles
due
to
their
high
energy
density;
however,
polycrystalline
are
prone
microcrack
formation
and
unavoidable
side
reactions
with
electrolytes
during
cycling,
leading
structural
instability
capacity
degradation.
Herein,
an
Sr-doped
single-crystalline
nickel-rich
LiNi0.88Co0.05Mn0.07O2/Sr
material
is
synthesized,
Sr
doping
levels
controlled
at
x
=
0.3%,
0.5%,
1
mol%.
The
features
particle
sizes
of
approximately
2
μm,
a
relatively
low
temperature.
It
inhibits
the
formation,
prevents
electrolyte
penetration
into
interior,
reduce
reactions,
thereby
enhancing
stability.
This
enables
deliver
initial
discharge
205.3
mAh
g−1at
0.1
C
170.8
g−1
10
C,
within
voltage
range
2.7
V–4.3
V,
outstanding
retention
96.61%
after
100
cycles.
These
improvements
can
be
attributed
Sr-doping,
which
reduces
single-crystal
growth
temperature,
effectively
mitigating
Li+/Ni2+
cation
mixing.
Moreover,
incorporation
expands
interlayer
spacing,
facilitating
Li+
diffusion.
strategy
employed
in
this
work
provides
new
insight
low-temperature
synthesis,
significantly
improving
electrochemical
performance
materials.
ACS Energy Letters,
Journal Year:
2024,
Volume and Issue:
9(9), P. 4255 - 4264
Published: Aug. 2, 2024
Prompted
by
the
increasing
demand
for
high-energy
Li-ion
batteries
(LIBs)
in
electric
vehicles
(EVs),
development
of
advanced
layered
cathode
materials
has
attracted
significant
attention
recent
decades.
Advances
situ
and
operando
characterization
techniques
have
not
only
led
to
successful
commercialization
these
but
also
opened
up
new
horizons
terms
cathodes
exhibiting
enhanced
energy
cycle
stability.
This
Perspective
highlights
advances
monitoring
during
synthesis
materials.
While
previous
reports
focused
on
reaction
mechanisms
charging/discharging,
this
aims
reveal
complex
relationships
between
phase
transitions
microstructural
evolution
their
impacts
electrochemical
performance.
Furthermore,
we
address
strategies
that
aid
understanding
solid-state
offer
an
insightful
guide
defect-free
oxide
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 15, 2024
Abstract
Ni‐rich
layered
oxides
are
recognized
as
one
of
the
most
promising
candidates
for
cathodes
in
all‐solid‐state
lithium
batteries
(ASSLBs)
due
to
their
intrinsic
merits,
such
high
average
voltage
and
specific
capacity.
However,
application
is
profoundly
hindered
by
sluggish
interfacial
lithium‐ion
(Li
+
)/electron
transfer
kinetics,
which
primarily
caused
surface
residues,
structural
transformation,
Li/Ni
mixing,
H2/H3
phase
transition,
microcracks.
Furthermore,
electro‐chemo‐mechanical
failures
at
cathode/solid‐state
electrolyte
(SSE)
interface,
including
side
reactions,
space‐charge
layer
(SCL)
formation,
physical
disconnection,
accelerate
capacity
fading.
This
work
provides
a
systematic
overview
these
challenges
fundamental
insights
into
utilizing
ASSLBs.
Additionally,
several
key
parameters,
cost,
energy
density,
pressure,
environmental
temperature,
evaluated
meet
requirements
ASSLBs
commercial
applications.
Moreover,
representative
modification
strategies
future
research
directions
exploring
advanced
cathode‐based
outlined.
review
aims
provide
comprehensive
understanding
essential
expedite
