Nano Letters,
Journal Year:
2024,
Volume and Issue:
24(32), P. 9793 - 9800
Published: Aug. 1, 2024
O3-type
layered
oxides
have
been
extensively
studied
as
cathode
materials
for
sodium-ion
batteries
due
to
their
high
reversible
capacity
and
initial
sodium
content,
but
they
suffer
from
complex
phase
transitions
an
unstable
structure
during
intercalation/deintercalation.
Herein,
we
synthesize
a
high-entropy
transition
metal
oxide,
NaNi0.3Cu0.05Fe0.1Mn0.3Mg0.05Ti0.2O2
(NCFMMT),
by
simultaneously
doping
Cu,
Mg,
Ti
into
its
layers,
which
greatly
increase
structural
entropy,
thereby
reducing
formation
energy
enhancing
stability.
The
NCFMMT
exhibits
significantly
improved
cycling
stability
(capacity
retention
of
81.4%
at
1C
after
250
cycles
86.8%
5C
500
cycles)
compared
pristine
NaNi0.3Fe0.4Mn0.3O2
(71%
100
1C),
well
remarkable
air
Finally,
the
NCFMMT//hard
carbon
full-cell
deliver
103
mAh
g–1
1C,
with
83.8
maintained
300
81.4%).
Energy & Environmental Science,
Journal Year:
2023,
Volume and Issue:
16(9), P. 4041 - 4053
Published: Jan. 1, 2023
Carbonaceous
materials
are
the
most
promising
anodes
for
alkali
metal-ion
batteries
(AMIBs);
however,
it
is
still
a
great
challenge
to
construct
carbonaceous
with
elaborate
microstructures
achieve
superior
electrochemical
performance.
Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
53(13), P. 7202 - 7298
Published: Jan. 1, 2024
The
growing
global
energy
demand
necessitates
the
development
of
renewable
solutions
to
mitigate
greenhouse
gas
emissions
and
air
pollution.
To
efficiently
utilize
yet
intermittent
sources
such
as
solar
wind
power,
there
is
a
critical
need
for
large-scale
storage
systems
(EES)
with
high
electrochemical
performance.
While
lithium-ion
batteries
(LIBs)
have
been
successfully
used
EES,
surging
price,
coupled
limited
supply
crucial
metals
like
lithium
cobalt,
raised
concerns
about
future
sustainability.
In
this
context,
potassium-ion
(PIBs)
emerged
promising
alternatives
commercial
LIBs.
Leveraging
low
cost
potassium
resources,
abundant
natural
reserves,
similar
chemical
properties
potassium,
PIBs
exhibit
excellent
ion
transport
kinetics
in
electrolytes.
This
review
starts
from
fundamental
principles
structural
regulation
PIBs,
offering
comprehensive
overview
their
current
research
status.
It
covers
cathode
materials,
anode
electrolytes,
binders,
separators,
combining
insights
full
battery
performance,
degradation
mechanisms,
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
36(7)
Published: Aug. 18, 2023
Abstract
Sodium‐ion
batteries
(SIBs)
are
a
viable
alternative
to
meet
the
requirements
of
future
large‐scale
energy
storage
systems
due
uniform
distribution
and
abundant
sodium
resources.
Among
various
cathode
materials
for
SIBs,
phosphate‐based
polyanionic
compounds
exhibit
excellent
sodium‐storage
properties,
such
as
high
operation
voltage,
remarkable
structural
stability,
superior
safety.
However,
their
undesirable
electronic
conductivities
specific
capacities
limit
application
in
systems.
Herein,
development
history
recent
progress
cathodes
first
overviewed.
Subsequently,
effective
modification
strategies
summarized
toward
high‐performance
including
surface
coating,
morphological
control,
ion
doping,
electrolyte
optimization.
Besides,
electrochemical
performance,
cost,
industrialization
analysis
SIBs
discussed
accelerating
commercialization
development.
Finally,
directions
comprehensively
concluded.
It
is
believed
that
this
review
can
provide
instructive
insight
into
developing
practical
SIBs.
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
eScience,
Journal Year:
2023,
Volume and Issue:
4(1), P. 100186 - 100186
Published: Sept. 13, 2023
Sodium-ion
batteries
(SIBs)
are
regarded
as
the
most
promising
technology
for
large-scale
energy
storage
systems.
However,
practical
application
of
SIBs
is
still
hindered
by
lack
applicable
cathode
materials.
Herein,
novel
phase-pure
polyanionic
Na8Fe5(SO4)9
designed
and
employed
a
material
first
time.
The
has
an
alluaudite-type
sulfate
framework
small
Na+
ion
diffusion
barriers.
As
expected,
as-synthesized
Na8Fe5(SO4)9@rGO
exhibits
high
working
voltage
3.8
V
(versus
Na/Na+),
superior
reversible
capacity
100.2
mAh
g–1
at
0.2
C,
excellent
rate
performance
(∼80
10
∼63
50
C),
ultra-long
cycling
life
(91.9%
retention
after
10,000
cycles
81%
20,000
C).
We
use
various
techniques
computational
methods
to
comprehensively
investigate
material's
electrochemical
reaction
mechanisms.
Small Structures,
Journal Year:
2023,
Volume and Issue:
4(10)
Published: June 22, 2023
Lithium‐ion
batteries
(LIBs)
have
dominated
the
secondary
market
in
past
few
decades.
However,
their
widespread
application
is
seriously
hampered
by
limited
lithium
resource
and
high
cost.
Recently,
sodium‐ion
(SIBs)
generated
significant
attention
because
of
characteristics
abundant
raw
sources,
low
cost,
similar
“rocking
chair”
mechanism
with
LIBs,
which
hold
great
potential
large‐scale
energy
storage.
Cathode
materials
excellent
electrochemical
performance
are
urgent
demand
for
next‐generation
SIBs.
Herein,
this
review
provides
a
comprehensive
overview
recent
advances
most
promising
SIBs
cathode
candidates,
including
layered
oxides,
polyanionic
materials,
Prussian
blue
analogues.
The
currently
existing
issues
that
need
to
be
addressed
these
cathodes
pointed
out,
such
as
insufficient
density,
electron
conductivity,
air
sensitivity,
so
on.
This
also
details
structural
three
candidates.
Moreover,
optimization
strategies
improving
summarized,
element
doping,
morphology
modification,
structure
architecture,
Finally,
current
research
status
proposed
future
developmental
directions
concluded.
aims
provide
practical
guidance
development
ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(13), P. 9354 - 9364
Published: March 22, 2024
Na3V2(PO4)3
(NVP)
based
on
the
multielectron
reactions
between
V2+
and
V5+
has
been
considered
a
promising
cathode
for
sodium-ion
batteries
(SIBs).
However,
it
still
suffers
from
unsatisfactory
stability,
caused
by
poor
reversibility
of
V5+/V4+
redox
couple
structure
evolution.
Herein,
we
propos
strategy
that
combines
high-entropy
substitution
electrolyte
optimization
to
boost
reversible
NVP.
The
high
crystalline
evolution
are
disclosed
in
situ
X-ray
absorption
near-edge
spectra
diffraction.
Meanwhile,
electrochemical
reaction
kinetics
NVP
(HE-NVP)
can
be
further
improved
diglyme-based
electrolyte.
These
enable
HE-NVP
deliver
superior
performance
(capacity
retention
93.1%
after
2000
cycles;
large
capacity
120
mAh
g–1
even
at
5.0
A
g–1).
Besides,
long
cycle
life
power
density
HE-NVP∥natural
graphite
full-cell
configuration
demonstrated
superiority
SIBs.
This
work
highlights
synergism
is
powerful
enhance
sodium-storage
polyanionic
cathodes
