Carbon Energy,
Journal Year:
2022,
Volume and Issue:
5(7)
Published: Dec. 5, 2022
Abstract
The
crystal
plane
plays
a
very
important
role
in
the
properties
of
Ni‐rich
cathodes.
[003]
crystallographic
texture
regulation
has
been
proven
to
improve
structural
stability,
and
yet,
discrepancy
particles
with
different
exposed
ratios
attenuation
not
clarified.
Herein,
we
have
unraveled
comprehensively
decay
difference
for
cathodes’
primary
percentages
by
regulating
precursor
coprecipitation
process.
findings
based
on
characterization,
first‐principles
calculations,
finite
element
analysis,
electrochemical
test
reveal
that
length
width
represent
directions,
respectively,
show
cathode
higher
/[003]
ratio
can
effectively
inhibit
structure
degradation
intergranular/intragranular
crack
formation
owing
low
oxygen
vacancy
energy
(003)
planes
small
local
stress
secondary/primary
particles.
This
study
may
provide
guidance
design
layered
Advanced Energy Materials,
Journal Year:
2023,
Volume and Issue:
13(37)
Published: Aug. 17, 2023
Abstract
In
recent
decades,
sodium‐ion
batteries
(SIBs)
have
received
increasing
attention
because
they
offer
cost
and
safety
advantages
avoid
the
challenges
related
to
limited
lithium/cobalt/nickel
resources
environmental
pollution.
Because
sodium
storage
performance
production
of
SIBs
are
dominated
by
cathode
performance,
developing
materials
with
large‐scale
capacity
is
key
achieving
commercial
applications
SIBs.
Therefore,
host
high
energy
density,
long
cycling
life,
low
cost,
chemical/environmental
stability
crucial
for
implementing
advanced
Among
developed
SIBs,
O3‐type
sodiated
transition‐metal
oxides
attracted
extensive
owing
their
simple
synthesis
methods,
theoretical
specific
capacity,
sufficient
Na
content.
However,
relatively
large
Na‐ion
radius
leads
sluggish
diffusion
kinetics
inevitable
complex
phase
transitions
during
deintercalation/intercalation
process,
resulting
in
poor
rate
capability
stability.
this
review
comprehensively
summarizes
research
progress
modification
strategies
cathodes,
including
component
design,
surface
modification,
optimization
methods.
This
work
aims
guide
development
layered
provide
technical
support
next
generation
energy‐storage
systems.
InfoMat,
Journal Year:
2023,
Volume and Issue:
5(6)
Published: May 8, 2023
Abstract
Sodium‐ion
batteries
(SIBs)
are
considered
as
a
low‐cost
complementary
or
alternative
system
to
prestigious
lithium‐ion
(LIBs)
because
of
their
similar
working
principle
LIBs,
cost‐effectiveness,
and
sustainable
availability
sodium
resources,
especially
in
large‐scale
energy
storage
systems
(EESs).
Among
various
cathode
candidates
for
SIBs,
Na‐based
layered
transition
metal
oxides
have
received
extensive
attention
relatively
large
specific
capacity,
high
operating
potential,
facile
synthesis,
environmental
benignity.
However,
there
series
fatal
issues
terms
poor
air
stability,
unstable
cathode/electrolyte
interphase,
irreversible
phase
that
lead
unsatisfactory
battery
performance
from
the
perspective
preparation
application,
outside
inside
oxide
cathodes,
which
severely
limit
practical
application.
This
work
is
meant
review
these
critical
problems
associated
with
cathodes
understand
fundamental
roots
degradation
mechanisms,
provide
comprehensive
summary
mainstream
modification
strategies
including
chemical
substitution,
surface
modification,
structure
modulation,
so
forth,
concentrating
on
how
improve
reduce
interfacial
side
reaction,
suppress
realizing
structural
reversibility,
fast
Na
+
kinetics,
superior
electrochemical
performance.
The
advantages
disadvantages
different
discussed,
insights
into
future
challenges
opportunities
also
presented.
image
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
35(40)
Published: Aug. 2, 2023
Optimizing
charge
transfer
and
alleviating
volume
expansion
in
electrode
materials
are
critical
to
maximize
electrochemical
performance
for
energy-storage
systems.
Herein,
an
atomically
thin
soft-rigid
Co9
S8
@MoS2
core-shell
heterostructure
with
dual
cation
vacancies
at
the
atomic
interface
is
constructed
as
a
promising
anode
high-performance
sodium-ion
batteries.
The
involving
VCo
VMo
soft
MoS2
shell
afford
ionic
pathways
rapid
transfer,
well
rigid
core
acting
dominant
active
component
resisting
structural
deformation
during
charge-discharge.
Electrochemical
testing
theoretical
calculations
demonstrate
both
excellent
Na+
-transfer
kinetics
pseudocapacitive
behavior.
Consequently,
delivers
extraordinary
sodium-storage
(389.7
mA
h
g-1
after
500
cycles
5.0
A
),
superior
those
of
single-phase
counterparts:
assembled
Na3
V2
(PO4
)3
||d-Co9
/S-Gr
full
cell
achieves
energy
density
235.5
Wh
kg-1
0.5
C.
This
finding
opens
up
unique
strategy
broadens
horizons
material
design
storage
conversion.
ACS Applied Materials & Interfaces,
Journal Year:
2023,
Volume and Issue:
15(19), P. 23236 - 23245
Published: May 8, 2023
O3-type
layered
oxides
with
high
initial
sodium
content
are
promising
cathode
candidates
for
Na-ion
batteries.
However,
affected
by
the
undesired
transition
metal
slab
sliding
and
reaction
H2O/CO2,
their
further
application
is
typically
hindered
unsatisfactory
cycling
stability
upon
charging
to
voltage
poor
storage
under
humid
air.
Herein,
we
demonstrate
a
Fe/Ti
cosubstitution
strategy
simultaneously
enhance
electrochemical
performance
of
pristine
O3-NaNi0.5Mn0.5O2
material,
via
employing
redox
potential
inactive
stabilized
dopants.
The
resultant
cosubstituted
Na0.95Ni0.40Fe0.15Mn0.3Ti0.15O2
undergoes
highly
reversible
O3-P3-OP2
phase
transitions
small
cell
volume
change
2.8%,
instead
complex
O3-O'3-P3-P'3-P3'-O1
in
NaNi0.5Mn0.5O2.
Consequently,
displays
specific
capacity
161.6
mAh
g-1
an
average
working
3.28
V
81.8%
retention
after
200
cycles
at
5C.
Furthermore,
material
remains
very
stable
exposure
air
7
days
even
soaking
water
1
h,
owing
prohibition
losing
elevating
contracting
layer
spacing.
This
work
proposes
effective
method
oxide
cathodes
promises
advancing
batteries
toward
large-scale
industrialization.
Energy & Environmental Science,
Journal Year:
2024,
Volume and Issue:
17(5), P. 1756 - 1780
Published: Jan. 1, 2024
In
this
review,
research
progress
on
layered
oxide
cathodes
for
SIBs
in
recent
years
is
summarized,
with
emphasis
the
problems
of
poor
cycle
life
caused
by
irreversible
phase
transition,
Jahn–Teller
effect
and
interface
deterioration,
several
strategies
are
proposed
to
alleviate
these
issues.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
36(15)
Published: Nov. 1, 2023
Layered
oxides
have
become
the
research
focus
of
cathode
materials
for
sodium-ion
batteries
(SIBs)
due
to
low
cost,
simple
synthesis
process,
and
high
specific
capacity.
However,
poor
air
stability,
unstable
phase
structure
under
voltage,
slow
anionic
redox
kinetics
hinder
their
commercial
application.
In
recent
years,
concept
manipulating
orbital
hybridization
has
been
proposed
simultaneously
regulate
microelectronic
modify
surface
chemistry
environment
intrinsically.
this
review,
modes
between
atoms
in
3d/4d
transition
metal
(TM)
orbitals
O
2p
near
region
Fermi
energy
level
(E
