Abstract
The
pursuit
of
high
energy
density
while
achieving
long
cycle
life
remains
a
challenge
in
developing
transition
metal
(TM)
oxide
cathode
materials
for
sodium‐ion
batteries
(SIBs).
Here,
we
present
concept
precisely
manipulating
structural
evolution
via
local
coordination
chemistry
regulation
to
design
high‐performance
composite
materials.
controllable
process
is
realized
by
tuning
magnesium
content
Na
0.6
Mn
1−
x
Mg
O
2
,
which
elucidated
combination
experimental
analysis
and
theoretical
calculations.
substitution
into
sites
not
only
induces
unique
from
layered–tunnel
structure
layered
but
also
mitigates
the
Jahn–Teller
distortion
3+
.
Meanwhile,
benefiting
strong
ionic
interaction
between
2+
2−
environments
around
coordinated
with
electrochemically
inactive
are
anchored
TM
layer,
providing
pinning
effect
stabilize
crystal
smooth
electrochemical
profile.
0.95
0.05
material
delivers
188.9
mAh
g
−1
specific
capacity,
equivalent
508.0
Wh
kg
at
0.5C,
exhibits
71.3%
capacity
retention
after
1000
cycles
5C
as
well
excellent
compatibility
hard
carbon
anode.
This
work
may
provide
new
insights
inspire
more
novel
SIB
image
Advanced Materials,
Год журнала:
2024,
Номер
36(16)
Опубликована: Янв. 5, 2024
Due
to
low
cost
and
high
energy
density,
sodium
metal
batteries
(SMBs)
have
attracted
growing
interest,
with
great
potential
power
future
electric
vehicles
(EVs)
mobile
electronics,
which
require
rapid
charge/discharge
capability.
However,
the
development
of
high-rate
SMBs
has
been
impeded
by
sluggish
Na
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(19)
Опубликована: Янв. 14, 2024
Abstract
Sodium‐ion
batteries
(SIBs)
with
high
energy/power
density
and
low‐cost
characteristics
are
deemed
to
be
one
of
the
best
replacements
lithium‐ion
for
utilizing
in
large‐scale
electric
energy
storage
(EES)
devices.
Fe‐Mn‐based
cathode
materials
take
leading
position
realizing
high‐performance
SIBs
because
their
capacity,
environment‐friendly,
earth
abundant,
features,
exhibiting
huge
commercial
potential.
However,
cyclic
stability
still
limited
so
far,
considering
increasing
demands
practical
applications.
In
this
review,
aiming
better
understanding
research
level
currently
existed
sore
points,
progress
is
overviewed
several
types
materials,
including
layered
oxides,
polyanionic
compounds
Prussian
blue
analogues,
refine
electrochemical
mechanism
structure–performance
relationship.
Finally,
representative
performances
these
three
kinds
summarized,
compare
advantages
disadvantages
various
point
out
existing
key
scientific
problems
propose
direction
development
near
future.
This
review
makes
a
thoroughly
providing
new
guidance
future
on
toward
real‐world
Energy & Environmental Science,
Год журнала:
2024,
Номер
17(13), С. 4343 - 4389
Опубликована: Янв. 1, 2024
Na-ion
batteries
have
garnered
significant
attention
as
environmentally
friendly
alternatives
to
Li-ion
batteries.
However,
instability
in
air
prevents
commercialization
of
high
energy
cathodes.
Concerted
efforts
are
required
overcome
this
key
limitation.
Journal of Materials Chemistry A,
Год журнала:
2024,
Номер
12(9), С. 5170 - 5180
Опубликована: Янв. 1, 2024
By
combining
the
benefits
of
high
entropy
(HE)
and
carbon
wrapping
(CW),
[email protected]
achieves
excellent
electrochemical
performance
unprecedented
stability
in
ambient
environment.
Advanced Energy Materials,
Год журнала:
2024,
Номер
14(26)
Опубликована: Май 16, 2024
Abstract
Cycling
stability
is
the
biggest
challenge
for
cathodes
of
sodium‐ion
batteries
(SIBs),
which
directly
affected
by
structure
design.
Herein,
combination
high‐entropy
(HE)
and
multiphase
demonstrated
to
be
helpful
maintaining
improving
cycling
stability.
In
Ni/Mn/Cu/Ti/Sn
five‐component
HE
cathode,
multiple
elements
at
transition
metal
sites
can
enlarge
lattice
stabilize
simultaneously
without
causing
an
obvious
capacity
drop,
achieving
synergistic
effect
multi‐cations.
consisting
P2
O3
phases,
harmful
phase
in
high‐voltage
suppressed
performance
improved.
A
retention
77.3
mAh
g
−1
after
300
cycles
delivered,
improved
rate
88.7
750
mA
observed,
better
than
that
low‐entropy
cathode(P2
O3)
oxide
single
O3‐phase
cathode.
The
weighted
average
ionic
radius(
WAIR
)
all
metals
critical
formation
composition
composites.
Through
comparing
a
series
cathodes,
empirical
range
obtained,
shows
guidance
design
other
cathode
materials.
Journal of the American Chemical Society,
Год журнала:
2024,
Номер
146(20), С. 13924 - 13933
Опубликована: Май 9, 2024
O3-type
layered
oxides
for
sodium-ion
batteries
(SIBs)
have
attracted
extensive
attention
due
to
their
inherently
sufficient
Na
content,
which
been
considered
as
one
of
the
most
promising
candidates
practical
applications.
However,
influenced
by
irreversible
oxygen
loss
and
phase
transition
O3–P3,
cathodes
are
always
limited
low
cutoff
voltages
(typically
<4.2
V),
restraining
full
release
capacity.
In
this
study,
we
originally
propose
a
dual-reductive
coupling
mechanism
in
novel
Na0.8Li0.2Fe0.2Ru0.6O2
cathode
with
suppressed
O3–P3
transition,
aiming
at
improving
reversibility
redox
high
voltage
regions.
Consequently,
thanks
formation
strong
covalent
Fe/Ru–(O–O)
bonding
inhibited
slab
gliding
from
O
P
phase,
delivers
preeminent
cyclic
stability
among
numerous
within
4.5
V
(a
capacity
retention
95.4%
after
100
cycles
1.5–4.5
V).
More
importantly,
HAADF-STEM
7Li
solid-state
NMR
results
reveal
absence
metal
migration
presence
reversible
Li
during
cycling,
further
contributes
improved
structural
robustness
cathode.
This
study
proposes
an
innovative
strategy
boost
anionic
achieve
stable
high-voltage
oxides,
promoting
development
SIBs.
ACS Sustainable Chemistry & Engineering,
Год журнала:
2024,
Номер
12(13), С. 5310 - 5318
Опубликована: Март 19, 2024
Phosphate-pyrophosphate
iron
sodium
(Na4Fe3(PO4)2P2O7,
denoted
NFPP)
is
a
viable
cathode
material
for
sodium-ion
batteries
(SIBs)
due
to
its
low
cost,
environmental
friendliness,
and
high
structural
stability.
However,
the
limiting
factors
cycle
stability
rate
capabilities
are
attributed
mobility
insufficient
electronic
conductivity
of
Na
ions.
In
this
work,
vanadium
(V)-doped
NFPP,
nanoproducts
with
carbon
layer
encapsulation,
prepared
by
spray-drying
method.
After
optimizing
doping
amount
V,
Na3.94Fe2.94V0.06(PO4)2P2O7
(denoted
as
NFPP-2
V)
displays
an
initial
reversible
specific
capacity
123.4
mA
h
g–1
at
0.1C
in
SIBs.
Even
20C,
V
shows
discharge
99.6
still
retains
81.65%
after
10,000
cycles.
We
also
coupled
hard
assemble
pouch
cell,
which
can
exhibit
excellent
performance.
Therefore,
trace
process
production
pure-phase
provides
new
strategy
future
large-scale
production.
Nano-Micro Letters,
Год журнала:
2024,
Номер
17(1)
Опубликована: Окт. 4, 2024
Abstract
Na
3
V
2
(PO
4
)
(NVP)
has
garnered
great
attentions
as
a
prospective
cathode
material
for
sodium-ion
batteries
(SIBs)
by
virtue
of
its
decent
theoretical
capacity,
superior
ion
conductivity
and
high
structural
stability.
However,
the
inherently
poor
electronic
sluggish
diffusion
kinetics
NVP
give
rise
to
inferior
rate
performance
unsatisfactory
energy
density,
which
strictly
confine
further
application
in
SIBs.
Thus,
it
is
significance
boost
sodium
storage
material.
Up
now,
many
methods
have
been
developed
optimize
electrochemical
In
this
review,
latest
advances
optimization
strategies
improving
are
well
summarized
discussed,
including
carbon
coating
or
modification,
foreign-ion
doping
substitution
nanostructure
morphology
design.
The
highlighted,
involving
Na,
V,
PO
3−
sites,
include
single-site
doping,
multiple-site
single-ion
multiple-ion
so
on.
Furthermore,
challenges
prospects
high-performance
also
put
forward.
It
believed
that
review
can
provide
useful
reference
designing
developing
toward
large-scale
