Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 28, 2024
Abstract
The
presence
of
Li
2
CO
3
has
been
identified
as
the
cause
poor
lithophilicity
in
garnet‐type
7
La
Zr
O
12
(LLZO)
solid‐state
batteries.
A
‐free
garnet
is
expected
to
enhance
Li/LLZO
interface
contact.
However,
permanently
eradicating
regenerative
from
LLZO
surface
extremely
challenging
and
influence
regenerated
often
ignored.
Herein,
it
found
that
glossy
pellets
can
also
be
perfectly
wetted
by
molten
Li,
contradicting
common
belief
lithiophobic.
Therefore,
reducing
roughness
allows
directly
lithium
metal,
regardless
.
Additionally,
smooth
exhibits
better
air
stability
due
its
reduced
active
area.
symmetric
cell
with
a
pellet
shows
low
interfacial
impedance
Ω
cm
high
critical
current
density
1.4
mA
−
at
25
°C.
This
work
highlights
physics
which
significantly
influences
properties,
apart
chemistry.
Micromachines,
Journal Year:
2025,
Volume and Issue:
16(2), P. 137 - 137
Published: Jan. 24, 2025
The
growing
interest
in
sodium-ion
batteries
(SIBs)
is
driven
by
scarcity
and
the
rising
costs
of
lithium,
coupled
with
urgent
need
for
scalable
sustainable
energy
storage
solutions.
Among
various
cathode
materials,
layered
transition
metal
oxides
have
emerged
as
promising
candidates
due
to
their
structural
similarity
lithium-ion
battery
(LIB)
counterparts
potential
deliver
high
density
at
reduced
costs.
However,
significant
challenges
remain,
including
limited
capacity
charge/discharge
rates
instability
during
extended
cycling.
Addressing
these
issues
critical
advancing
SIB
technology
toward
industrial
applications,
particularly
large-scale
systems.
This
review
provides
a
comprehensive
analysis
sodium
oxides,
focusing
on
properties,
electrochemical
performance,
degradation
mechanisms.
Special
attention
given
intrinsic
extrinsic
factors
contributing
instability,
such
phase
transitions,
cationic/anionic
redox
behavior.
Additionally,
recent
advancements
material
design
strategies,
doping,
surface
modifications,
composite
formation,
are
discussed
highlight
progress
enhancing
stability
performance
materials.
work
aims
bridge
knowledge
gaps
inspire
further
innovations
development
high-performance
cathodes
batteries.
Advanced Energy Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 10, 2025
Abstract
Charge
transfer
at
the
electrode/electrolyte
interface
and
mass
within
electrode
are
two
main
factors
affecting
high‐rate
performance
of
O3‐type
layered
oxide
cathodes
for
sodium‐ion
batteries.
Here
a
multidimensional
lanthurization
strategy
is
proposed
to
construct
surface
LaCrO
3
heterostructure
create
Cr─O─La
configuration
NaCrO
2
.
The
electrified
heterogeneous
induces
built‐in
electric
field
accelerate
charge
interface.
Meanwhile,
in
transition
metal
layer
leads
local
aggregation,
weakens
interaction
force
between
Na─O,
reduces
Na
+
migration
barrier.
This
significantly
improves
electrochemical
reaction
kinetics
structural
reversibility
cathode.
As
result,
designed
stoichiometric
ratio
0.94
Cr
0.98
La
0.02
O
exhibits
remarkable
rate
(101.8
mAh
g
−1
40
C)
as
well
outstanding
cycling
stability
(83.1%
capacity
retention
20
C
2000
cycles)
half‐cell,
along
with
competitive
full
battery
(89.3%
after
500
cycles
C).
study
provides
promising
route
achieve
presentation
cathode
materials
high‐rate.
Energy & Fuels,
Journal Year:
2025,
Volume and Issue:
39(6), P. 3348 - 3358
Published: Jan. 30, 2025
P2-type
layered
oxides
have
attracted
tremendous
attention
as
the
leading
candidate
for
cathode
material
in
Na-ion
batteries
owing
to
their
ease
of
synthesis
and
facile
diffusion.
In
this
work,
an
in-depth
investigation
electrochemical
behavior
(space
group
P63/mmc)
10%
Ti-doped
Na2/3Mn2/3Ni1/3O2
is
carried
out
different
voltage
ranges
(1.5-4.0
V,
2.0-4.0
2.0-4.5
V).
Ti4+
doping
found
disrupt
Na-ion/vacancy
ordering
increase
Na-O2
layer
spacings,
which
results
improved
rate
performance
(~68
mAh
g-1
at
5C
V
range).
range,
Na2/3Mn0.567Ti0.100Ni1/3O2
(NMNT)
exhibits
a
reduced
initial
specific
discharge
capacity
140
significantly
retention
71%
after
100
cycles
due
enhanced
reversibility
anionic
redox.
Better
charge-discharge
cycling
stability
NMNT
(80%
0.33C
1.5-4.0
range)
evidences
Ti4+-induced
disruption
cooperative
Jahn-Teller
distortion.
Galvanostatic
intermittent
titration
confirm
higher
Na+
diffusion
coefficients
NMNT.
Interestingly,
marginally
cathode-electrolyte
interphase
resistance
endorsed
by
impedance
measurements,
while
overall
cell
charge-transfer
are
much
lower
(by
~45%
~56.7%,
respectively)
than
Na2/3Mn2/3Ni1/3O2.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 18, 2025
Abstract
Revealing
interlayer
oxygen
charge
is
of
great
significance
in
understanding
the
high‐voltage
and
air
stability
sodium
layered
cathodes,
but
it
currently
lacks
attention.
Particularly,
ion
full
batteries
under
high
cathode
loading
(≥8
mg
cm
−2
)
also
faces
extremely
challenges.
Here,
its
mechanism
for
are
revealed
a
high‐entropy
O3‐Na
0.85
Li
0.1
Al
0.02
Sn
0.08
Cu
Ti
Ni
0.3
Mn
O
2
(HEO)
cathode,
which
enables
robust
high‐cathode‐loading
sodium‐ion
batteries.
The
doping
effectively
maintains
transition
metal
(TM)─O
bond
covalency,
stabilizing
charge.
stable
O─O
repulsion
avoids
structural
collapse,
realizing
P3‐OP2‐P3
reversible
phase
transition.
Moreover,
reduced
achieves
Na
layer
contraction
Na─O
enhancement.
These
features
inhibit
attack
water
loss,
well
stability.
Therefore,
HEO
exhibits
good
up
to
900
cycles
2.0‒4.3
V
high‐capacity
retention
96.12%
after
5
day
exposure.
pouch
cell
with
≈16
≈60
mAh
lasts
100
cycles.
This
work
contributes
new
insights
into
both
cathodes
practical
Chemical Communications,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
The
incorporation
of
the
Na–O–Li
configuration
activates
and
stabilizes
anionic
redox
reactions,
realizing
complete
solid-solution
reaction,
leading
to
significant
improvements
in
capacity
cycling
stability.
