ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(19), P. 12468 - 12476
Published: May 3, 2024
Na
super
ionic
conductor
(NASICON)-type
polyanionic
vanadium
fluorophosphate
Na3V2O2(PO4)2F
(NVOPF)
is
a
promising
cathode
material
for
high-energy
sodium-ion
batteries.
The
dynamic
diffusion
and
exchange
of
sodium
ions
in
the
lattice
NVOPF
are
crucial
its
electrochemical
performance.
However,
standard
characterizations
mostly
focused
on
as-synthesized
without
cycling,
which
different
from
actual
battery
operation
conditions.
In
this
work,
we
investigated
hopping
processes
at
intermediate
charging
state
with
23Na
solid-state
nuclear
magnetic
resonance
(ssNMR)
density
functional
theory
(DFT)
calculations.
Our
experimental
revealed
six
distinct
coordination
sites
structure
determined
rates
among
these
variable
temperatures.
theoretical
calculations
showed
that
correspond
to
ion
transport
pathways
crystalline
lattice.
combined
study
uncovered
underlying
mechanisms
cycled
understandings
may
help
optimization
materials
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(40)
Published: May 20, 2024
Abstract
Hard
carbon
(HC)
materials
with
rich
closed
pore
structures
and
nano‐scaled
soft
coating
layer
have
emerged
as
promising
anode
in
sodium‐ion
batteries
(SIBs).
However,
it
still
remains
a
tremendous
challenge
to
precisely
regulate
thicknesses
for
achieving
excellent
electrochemical
performance
SIBs
at
low‐voltage
platforms.
Herein,
PCHC‐10
abundant
suitable‐sized
size
(0.45
nm)
has
been
accurately
designed
by
chemical
crosslink
reaction
between
the
pre‐oxidized
phenolic
resin
small
addition
of
pitch
form
ester‐based
bond.
As
anode,
delivered
large
reversible
capacity
359.8
mAh
g
−1
within
0.001–2.5
V,
high
242.8
low
voltage
platforms
(≤0.15
V).
Besides,
exhibits
91.4%
retention
100
cycles,
Na
3
V
2
(PO
4
)
//PCHC‐10
full
cell
superior
rate
energy
density
231.2
Wh
kg
.
Furthermore,
detailed
storage
behaviors
theoretical
calculations
revealed
that
HC
owning
pore‐size
0.45
nm
strongest
+
abilities
This
work
presents
novel
insight
constructing
boost
capability
World Journal of Advanced Research and Reviews,
Journal Year:
2024,
Volume and Issue:
21(1), P. 1984 - 1998
Published: Jan. 25, 2024
This
study
provides
a
comprehensive
review
of
next-generation
battery
technologies
and
their
critical
role
in
U.S.
energy
storage,
particularly
focusing
on
renewable
integration
grid
stability.
The
main
objectives
were
to
assess
the
current
advancements
technology,
evaluate
economic
viability
environmental
impacts,
understand
implications
for
stakeholders
management.
Employing
systematic
literature
content
analysis,
analyzed
data
from
peer-reviewed
articles,
industry
reports,
government
publications
published
between
2014
2024.
Key
findings
indicate
significant
progress
efficiency,
lifespan,
safety,
primarily
driven
by
innovations
lithium-ion
sodium-ion
batteries.
These
are
pivotal
enhancing
storage
capabilities
facilitating
sources
into
grid.
However,
challenges
such
as
material
scarcity,
concerns,
need
improved
recycling
methods
identified.
also
highlights
importance
regulatory
frameworks
policies
shaping
development
deployment
these
technologies.
Strategic
recommendations
leaders
policymakers
include
sustainable
sourcing,
investing
alternative
chemistries,
implementing
supportive
frameworks.
In
conclusion,
underscores
transformative
potential
advanced
achieving
future,
suggesting
future
research
directions
development,
with
smart
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(33)
Published: April 13, 2024
Abstract
Sulfur
doping
in
carbonaceous
anode
is
a
popular
method
to
improve
the
sodium
storing
performance.
Regulating
C/S
bond
effect
of
carbon
atom
with
doped
sulfur
could
understand
and
develop
superior
for
sodium‐ion
batteries.
Therefore,
this
study
designed
porous
hollow
nanocages
synergistically‐doped
bonds
(C‐S/C
=
S)
by
secondary‐sulfidation.
The
secondary‐sulfidation
conducive
different
formation
skeleton
adjust
structure
via
removed
other
groups.
Thus,
C‐S/C
S
synergistically
C‐S
C
delivered
reversible
capacity
307
mAh
g‐1
at
1.0
A
g
−1
initial
coulomb
efficiency
80.15%,
stable
cycle
life
2000
cycles,
fast
charge
capability
186
20.0
Through
characterization
simulation
results,
creates
more
active
sites
ion
diffusion
channels
enhancing
durable
kinetics
sodium‐ion.
This
work
provides
deep
insights
into
material
developing
stability
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(29), P. 37346 - 37362
Published: June 26, 2024
In
recent
years,
sodium
ion
batteries
(SIBs)
emerged
as
promising
alternative
candidates
for
lithium
(LIBs)
due
to
the
high
abundance
and
low
cost
of
resources.
However,
their
commercialization
has
been
hindered
by
inherent
limitations,
such
energy
density
poor
cycling
stability.
To
address
these
issues,
doping
methodology
is
one
most
approaches
boosting
structural
electrochemical
properties
SIB
electrodes.
This
review
provides
a
comprehensive
overview
advancements
in
strategies,
focusing
on
improvement
performance
SIBs.
Various
dopants
including
s-
p-block
elements,
transition
metals,
oxides,
carbonaceous
materials,
many
more
are
discussed
terms
effects
enhancing
Furthermore,
mechanisms
responsible
doped
SIBs
materials
also
discussed.
It
highlights
importance
sites
crystal
lattice,
which
play
crucial
role
optimizing
electrode
structure,
diffusion
kinetics,
stabilizing
electrode/electrolyte
interfaces.
The
ends
looking
at
studies
simultaneous
multiple
heteroatom
doping,
offering
valuable
perspectives
SIB.
study
insight
into
researchers
battery
industries
striving
storage
technologies.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(29)
Published: May 6, 2024
Abstract
Manganese‐based
layered
oxides
are
currently
of
significant
interest
as
cathode
materials
for
sodium‐ion
batteries
due
to
their
low
toxicity
and
high
specific
capacity.
However,
the
practical
applications
impeded
by
sluggish
intrinsic
Na
+
migration
poor
structure
stability
a
result
Jahn–Teller
distortion
complicated
phase
transition.
In
this
study,
high‐entropy
strategy
is
proposed
enhance
high‐voltage
capacity
cycling
stability.
The
designed
P2‐Na
0.67
Mn
0.6
Cu
0.08
Ni
0.09
Fe
0.18
Ti
0.05
O
2
achieves
deeply
desodiation
delivers
charging
158.1
mAh
g
−1
corresponding
0.61
with
initial
Coulombic
efficiency
98.2
%.
charge
compensation
attributed
cationic
anionic
redox
reactions
conjunctively.
Moreover,
crystal
effectively
stabilized,
leading
slight
variation
lattice
parameters.
This
research
carries
implications
expedited
development
low‐cost,
high‐energy‐density
batteries.
