Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 4, 2024
Abstract
The
hard
carbon
(HC)
anodes
with
desirable
electrochemical
performances
including
high
initial
Coulombic
efficiency,
superior
rate
performance
and
long‐term
cycling
play
an
indispensable
role
in
the
practical
application
of
sodium
ion
batteries
(SIBs),
which
are
closely
related
to
electrolytes
them
matched.
Fully
analyzing
mechanism
electrolyte
engineering
for
HC
is
crucial
promoting
commercialization
SIBs,
but
still
lacking.
In
this
review,
correlation
between
physicochemical
properties
first
summarized.
And
point
out
properties,
conductivity,
de‐solvation
energy,
interface
passivation
ability
Na
+
storage
HC.
Then,
formation
process,
composition,
as
well
structure
solid
interphase
(SEI)
on
surface
mainly
discussed,
structure‐activity
relationship
SEI
analyzed
depth.
Moreover,
based
analysis,
relevant
design
strategies
have
been
Finally,
challenges
future
development
directions
proposed.
This
review
expected
provide
professional
theoretical
guidance
contribute
rational
high‐performance
anodes,
industrialization
SIBs.
Advanced Energy Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 17, 2025
Abstract
Na
3
V
2
(PO
4
)
(NVP)
is
recognized
for
its
promising
commercialization
potential
as
a
sodium‐ion
battery
(SIB)
cathode,
due
to
thermodynamic
stability
and
open
structure.
However,
the
limited
energy
density
remains
major
obstacle
further
advancement
of
NVP.
Herein,
medium‐entropy
NASICON
3.3
1.4
Al
0.3
(MgCoNiCuZn)
0.06
(NVAMP‐0.3)
designed
by
introducing
3+
,
Mg
2+
Co
Ni
Cu
Zn
regulate
configurational
entropy.
These
NVAMP‐0.3
achieve
an
elevated
average
operating
voltage
(3.33
V)
high
capacity
(138.1
mAh
g
−1
based
on
2.3
+
through
/V
4+
5+
multi‐electron
reactions.
By
simultaneously
enhancing
voltage,
exhibits
impressive
460
Wh
kg
.
Furthermore,
demonstrates
excellent
low‐temperature
tolerance
with
retention
rate
94.6%
after
300
cycles
at
−40
°C.
In
situ
XRD
unveils
underlying
cause
unique
phenomenon
where
solid‐solution
reaction
accounts
faster
electrochemical
kinetics
compared
redox.
DFT
calculations
indicate
that
possesses
superior
electronic
conductivity
reduced
migration
barriers.
A
pouch
cell
assembled
cathode
hard
carbon
anode
highly
stable
cycling
(89.3%
200
1
C).
This
study
provides
valuable
insights
into
developing
NASICON‐type
cathodes
densities
SIBs.
Energy & Environmental Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
A
novel
strategy
for
grafting
a
highly
fluorinated
molecule
on
the
HC
surface
(FHC),
which
functionally
enhances
reversible
sodium
storage
behavior
in
slope
region
and
contributes
to
architecture
of
robust
NaF-rich
SEI.
ACS Materials Letters,
Journal Year:
2024,
Volume and Issue:
6(3), P. 772 - 779
Published: Feb. 1, 2024
Formation
of
the
solid
electrolyte
interphase
(SEI)
on
hard
carbon
electrode
significantly
influences
performance
batteries,
in
terms
cycle
performance,
calendar
life,
and
power
characteristics.
In
sodium-ion
batteries
(SIBs),
energetically
inferior
SEI
formation
mechanism,
compared
with
lithium-ion
(LIBs),
results
a
thin,
thermally
vulnerable,
less
passivating
electrode.
Notably,
for
SIBs
have
higher
lowest
unoccupied
molecular
orbital
(LUMO)
energy
level
Na-solvated
ethylene
carbonate
upstream-shifted
swing
voltage
range,
LIBs,
which
reduces
deposition
from
insufficient
overpotential
development.
Additionally,
larger
ionic
radius
Na
to
that
Li-ion
leads
lower
binding
ions
anion
component,
increasing
solubility
electrolytes.
Consequently,
thermal
stability
more-pronounced
self-discharge
during
high-temperature
storage,
LIBs.
Interdisciplinary materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 9, 2024
Abstract
Exploiting
high‐capacity
cathode
materials
with
superior
reliability
is
vital
to
advancing
the
commercialization
of
sodium‐ion
batteries
(SIBs).
Layered
oxides,
known
for
their
eco‐friendliness,
adaptability,
commercial
viability,
and
significant
recent
advancements,
are
prominent
materials.
However,
electrochemical
cycling
over
an
extended
period
can
trigger
capacity
fade,
voltage
hysteresis,
structural
instability,
adverse
interface
reactions
which
shorten
battery
life
cause
safety
issues.
Thus,
it
essential
require
in‐depth
understanding
degradation
mechanisms
layered
oxides.
In
this
review,
crystal
electronic
structures
oxides
revisited
first,
a
renewed
also
presented.
Three
critical
highlighted
deeply
discussed
namely
Jahn–Teller
effect,
phase
transition,
surface
decomposition,
directly
responsible
inferior
performances.
Furthermore,
comprehensive
overview
recently
reported
modification
strategies
related
proposed.
Additionally,
review
discusses
challenges
in
practical
application,
primarily
from
mechanism
standpoint.
Finally,
outlines
future
research
directions,
offering
perspectives
further
develop
SIBs,
driving
industrialization
SIBs.
Materials Futures,
Journal Year:
2024,
Volume and Issue:
3(3), P. 032102 - 032102
Published: July 1, 2024
Abstract
With
the
continuous
exploration
of
researchers
in
field
sodium-ion
batteries,
performance
these
batteries
has
been
greatly
improved,
and
they
have
a
wide
range
application
prospects
large-scale
energy
storage,
traffic
power
other
fields.
Hard
carbon
is
most
important
anode
material
for
batteries.
Although
it
advantages
low
cost,
stable
structure
performance,
still
problems
initial
Coulombic
efficiency
(ICE)
poor
rate
application.
In
order
to
solve
problem
ICE
hard
recent
years
literature
about
comprehensively
reviewed.
Based
on
microstructure
material,
causes
are
analyzed.
At
same
time,
from
point
view
design
regulation,
current
optimization
strategies
summarized,
including
following
aspects:
improvement
carbonization
process,
precursor
screening
design,
surface
coating
strategy,
micro-pore
control,
catalytic
strategy.
We
hope
that
this
review
will
provide
reference
further
properties
its
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: April 30, 2024
Abstract
Stabilizing
the
electrode
interphases
is
urgently
required
to
enhance
lifetime
of
high‐voltage
sodium‐ion
batteries
(SIBs).
However,
continuous
anode
solid–electrolyte
interphase
(SEI)
growth
associated
with
electron
leakage
and
fragile
cathode–electrolyte
(CEI)
lead
capacity
fade
at
high
voltage;
yet
solvation‐interphase‐performance
relationship
inadequately
addressed.
Herein,
a
cooperative
Na
+
‐solvation
strategy
reported
stabilize
by
holistic
design
electrolytes
combining
soft
moderate
co‐solvents.
The
rationally
regulated
leads
CEI/SEI
desired
thickness
component
stability.
As
such,
remarkable
cycling
stability
achieved
for
4.3‐V
3
V
2
O
(PO
4
)
F
(NVOPF)
cathodes
83.3%
retention
over
3000
cycles
1
C,
significantly
outperforming
carbonate
counterpart
(41.6%
retention).
Meanwhile,
restrained
SEI
via
reducing
formation
electron‐leaking
CO
stabilizes
long‐term
hard
carbon
(HC)
anode.
assembled
NVOPF||HC
full
cells
achieve
superior
rate
capability
(up
15
C)
stable
500
cycles.
demonstrated
engineering
electrolyte
chemistry,
‐solvation,
structure/component
contributes
toward
rational
establishment
rules
SIBs
possibly
other
similar
chemistries.