Angewandte Chemie International Edition,
Journal Year:
2023,
Volume and Issue:
62(15)
Published: Feb. 13, 2023
Manganese-rich
layered
oxide
cathodes
of
sodium-ion
batteries
(SIBs)
are
extremely
promising
for
large-scale
energy
storage
owing
to
their
high
capacities
and
cost
effectiveness,
while
the
Jahn-Teller
(J-T)
distortion
low
operating
potential
Mn
redox
largely
hinder
practical
applications.
Herein,
we
reveal
that
annealing
in
argon
rather
than
conventional
air
is
a
universal
strategy
comprehensively
upgrade
Na-storage
performance
Mn-based
cathodes.
Bulk
oxygen
vacancies
introduced
via
this
method,
leading
reduced
valence,
lowered
3d-orbital
level,
formation
new-concept
domains.
As
result,
density
model
P2-Na0.75
Mg0.25
Mn0.75
O2
cathode
increases
by
≈50
%
benefiting
from
improved
specific
capacity
redox.
The
domains
can
disrupt
cooperative
J-T
distortion,
greatly
promoting
cycling
stability.
This
exciting
finding
opens
new
avenue
towards
high-performance
SIBs.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
35(13)
Published: Jan. 20, 2023
Although
studies
of
transition
metal
sulfides
(TMS)
as
anode
materials
for
sodium-ion
batteries
are
extensively
reported,
the
short
cycle
life
is
still
a
thorny
problem
that
impedes
their
practical
application.
In
this
work,
new
capacity
fading
mechanism
TMS
electrodes
demonstrated;
is,
parasitic
reaction
between
electrolyte
anions
(i.e.,
ClO4-
)
and
yields
non-conductive
unstable
solid-electrolyte
interphase
(SEI)
meanwhile,
corrosively
turns
into
less-active
oxides.
This
knowledge
guides
development
an
electrochemical
strategy
to
manipulate
anion
decomposition
construct
stable
interface
prevents
extensive
reactions.
It
shown
introducing
sodium
nitrate
radically
changes
Na+
solvation
structure
by
populating
ions
in
first
sheath,
generating
conductive
SEI
layer
containing
both
Na3
N
NaF.
The
optimized
enables
iron
sulfide
stably
over
2000
cycles
with
negligible
loss,
similar
enhancement
performance
demonstrated
on
number
other
sulfides.
work
discloses
sulfides'
cycling
failure
from
unique
perspective
highlights
critical
importance
manipulating
chemistry
batteries.
Advanced Energy Materials,
Journal Year:
2023,
Volume and Issue:
13(27)
Published: May 16, 2023
Abstract
Low‐cost
sodium‐ion
batteries
(SIBs)
have
been
extensively
considered
as
a
supplement
or
even
replacement
for
successful
lithium‐ion
batteries.
However,
the
practical
application
of
SIBs
is
limited
by
their
energy
density
and
cyclic
performance,
which
are
mainly
constrained
cathode
side.
Therefore,
development
advanced
materials
essential
SIBs.
Among
various
materials,
layered
transition
metal
oxides
(LTMOs)
highly
promising
candidates
due
to
compact
crystal
structure,
low‐cost,
ease
preparation,
similarities
Li‐based
LTMOs.
Unfortunately,
bottleneck
issues
faced
Na‐based
LTMOs,
such
severe
phase
transitions,
sluggish
diffusion
kinetics,
interface
deterioration,
pose
significant
challenges
in
achieving
high‐performance
cathodes.
In
this
review,
comprehensive
overview
summary
recently
reported
modification
strategies
provided
structure–function–performance
relationship
refined.
A
perspective
on
outlook
direction
LTMOs
cathodes
also
provided.
This
review
comprehensively
explores
providing
new
horizon
future
research
Advanced Functional Materials,
Journal Year:
2022,
Volume and Issue:
32(51)
Published: Oct. 9, 2022
Abstract
Sodium‐ion
batteries
(SIBs)
show
tremendous
potential
for
large‐scale
energy
storage
systems
due
to
the
high
abundance
of
sodium
resources
and
potentially
low
cost.
Among
discovered
anode
materials
SIBs,
metal
selenides
with
large
theoretical
capacities
are
considered
as
a
promising
candidate.
Nevertheless,
selenide‐based
anodes
trapped
by
poor
ionic/electronic
conductivity,
initial
Coulombic
efficiency,
drastic
volume
changes
during
(de)sodiation
process.
Herein,
differences
in
sodium‐storage
mechanisms
different
first
analyzed.
Subsequently,
specific
challenges
corresponding
modification
strategies
(such
nanostructure
design,
carbon
modification,
window
regulation,
electrolyte
optimization,
constructing
heterostructures)
SIB
discussed
detail,
recent
advances
also
presented.
Finally,
research
directions
SIBs
comprehensively
reviewed.
It
is
believed
that
this
review
can
provide
constructive
comments
on
optimization
application
high‐performance
SIBs.
Advanced Functional Materials,
Journal Year:
2022,
Volume and Issue:
33(2)
Published: Nov. 20, 2022
Abstract
Iron‐based
Prussian
blue
analogs
(Fe‐PBAs)
are
extensively
studied
as
promising
cathode
materials
for
rechargeable
sodium‐ion
batteries
owing
to
their
high
theoretical
capacity,
low‐cost
and
facile
synthesis
method.
However,
Fe‐PBAs
suffer
poor
cycle
stability
low
specific
capacity
due
the
crystallinity
irreversible
phase
transition
during
excess
storage.
Herein,
a
modified
co‐precipitation
method
prepare
highly
crystallized
PBAs
is
reported.
By
introducing
an
electrochemical
inert
element
(Zn)
substitute
high‐spin
Fe
in
(ZnFeHCF‐2),
depth
of
charge/discharge
rationally
controlled
form
reversible
process
sustainable
Minor
lattice
distortion
ZnFeHCF‐2
sodium‐ions
insertion
extraction
proved
by
in‐situ
tests,
which
have
significantly
impacted
cycling
stability.
The
shows
remarkably
enhanced
performance
with
retention
58.5%
over
2000
cycles
at
150
mA
g
−1
well
superior
rate
up
6000
(fast
kinetics).
Furthermore,
successful
fabrication
full
cell
on
as‐prepared
commercial
hard
carbon
anode
demonstrates
potential
high‐performance
electrode
large‐scale
energy
storage
systems.
Advanced Materials,
Journal Year:
2022,
Volume and Issue:
34(33)
Published: June 24, 2022
Abstract
It
is
still
very
urgent
and
challenging
to
simultaneously
develop
high‐rate
long‐cycle
oxide
cathodes
for
sodium‐ion
batteries
(SIBs)
because
of
the
sluggish
kinetics
complex
multiphase
evolution
during
cycling.
Here,
concept
accurately
manipulating
structural
formulating
high‐performance
heterostructured
biphasic
layered
by
local
chemistry
orbital
hybridization
modulation
reported.
The
P2‐structure
stoichiometric
composition
cathode
material
shows
a
P2‐
O3‐type
heterostructure
that
explicitly
evidenced
various
macroscale
atomic‐scale
techniques.
Surprisingly,
displays
excellent
rate
performance,
remarkable
cycling
stability
(capacity
retention
82.16%
after
600
cycles
at
2
C),
outstanding
compatibility
with
hard
carbon
anode
integrated
advantages
intergrowth
structure
environment
regulation.
Meanwhile,
formation
process
from
precursors
calcination
highly
reversible
dynamic
Na
+
intercalation/deintercalation
are
clearly
articulated
series
in
situ
characterization
Also,
intrinsic
properties
corresponding
electrochemical
behavior
further
elucidated
density
states
electron
localization
function
functional
theory
calculations.
Overall,
this
strategy,
which
finely
tunes
orbitals
SIBs,
will
open
up
new
field
other
materials.
Small,
Journal Year:
2022,
Volume and Issue:
19(14)
Published: Dec. 14, 2022
Abstract
The
Internet
of
Things
era
has
promoted
enormous
research
on
sensors,
communications,
data
fusion,
and
actuators.
Among
them,
sensors
are
a
prerequisite
for
acquiring
the
environmental
information
delivering
to
an
artificial
center
make
decisions.
MXene‐based
have
aroused
tremendous
interest
because
their
extraordinary
performances.
In
this
review,
electrical,
electronic,
optical
properties
MXenes
first
introduced.
Next,
discussed
according
sensing
mechanisms
such
as
electrochemical,
methods.
Initially,
biosensors
introduced
based
chemiresistors
field‐effect
transistors.
Besides,
wearable
pressure
sensor
is
demonstrated
with
piezoresistive
devices.
Third,
electrochemical
methods
include
amperometry
electrochemiluminescence
examples.
addition,
approaches
refer
surface
plasmonic
resonance
fluorescence
energy
transfer.
Moreover,
prospects
delivered
multimodal
fusion
toward
complicated
human‐like
senses.
Eventually,
future
opportunities
MXene
conveyed
in
new
material
discovery,
structure
design,
proof‐of‐concept
Advanced Functional Materials,
Journal Year:
2022,
Volume and Issue:
33(9)
Published: Dec. 26, 2022
Abstract
Metal
sulfides
have
shown
great
promise
for
sodium‐ion
batteries
due
to
their
excellent
redox
reversibility
and
relatively
high
capacity.
However,
metal
generally
suffer
from
sluggish
charge
transport
serious
volume
change
during
the
charge–discharge
process.
Herein,
potato
chip‐like
nitrogen‐doped
carbon‐coated
ZnS/Sb
2
S
3
heterojunction
(ZnS/Sb
@NC)
is
precisely
synthesized
through
a
sulfurization
reaction,
subsequent
cation
exchange
process
between
Zn
2+
Sb
3+
.
The
theoretical
calculations
experimental
studies
reveal
boosted
transfer
in
@NC
composites.
Therefore,
electrode
exhibits
cycling
stability
(a
reversible
capacity
of
511.4
mAh
g
‐1
after
450
cycles)
superior
rate
performance
(400.4
at
10
A
).
In
addition,
based
on
conversion‐alloy
reaction
mechanism
store
Na
+
,
which
disclosed
by
X‐ray
diffraction
resolution
transmission
electron
microscopy
analysis.
This
effective
synthesis
method
can
provide
reference
design
other
high‐performance
materials
batteries.