Advanced Functional Materials,
Год журнала:
2022,
Номер
32(18)
Опубликована: Янв. 27, 2022
Abstract
Lithium‐rich
manganese‐based
layered
oxides
(LROs)
are
standing
out
as
cathode
materials
of
lithium‐ion
batteries
(LIBs)
due
to
merits
on
both
capacity
(>250
mAh
g
−1
)
and
operation
voltage
(≈3.6
V).
However,
the
applications
LROs
plagued
by
almost
inevitable
degradation
structure,
in
which
electrode
surface
bears
brunt
primacy
barrier
for
Li
+
transport.
Plenty
modification
strategies
proposed
stabilize
structure
situ
self‐reconstruction
with
atomic
level
connection
bulk
structures
provide
robust
layers
prevent
degradation.
Herein,
a
critical
review
focusing
reconstruction
is
summarized.
It
started
from
overview
then
challenges
including
lattice
oxygen
release,
phase
transformation,
transition
metal
ions
dissolution,
interfacial
side
reactions
further
discussed.
In
emphasized
alleviate
performance
LROs,
creating
vacancies
synthesizing
layered‐spinel
or
layered‐rocksalt
heterogeneous
structures.
Among
these
approaches,
synthesis
characterization
methods,
formation
mechanisms
roles
highlighted.
Finally,
prospects
aspects
precise/large
scale
preparations,
interphase
design
between
electrolytes
electrodes,
in‐operando
approaches
commercialization
provided.
Energy & Environmental Science,
Год журнала:
2022,
Номер
15(5), С. 1711 - 1759
Опубликована: Янв. 1, 2022
Building
rechargeable
lithium
batteries
for
wide-temperature
applications
requires
us
to
investigate
the
battery
failure
mechanism
at
low/high
temperature,
design
advanced
electrode/electrolyte
materials,
and
optimize
management
system.
eScience,
Год журнала:
2021,
Номер
2(1), С. 10 - 31
Опубликована: Дек. 29, 2021
NASICON
(Na
superionic
conductor)-type
cathode
materials
for
sodium-ion
batteries
(SIBs)
have
attracted
extensive
attention
due
to
their
mechanically
robust
three-dimensional
(3D)
framework,
which
has
sufficient
open
channels
fast
Na+
transportation.
However,
they
usually
suffer
from
inferior
electronic
conductivity
and
low
capacity,
severely
limit
practical
applications.
To
solve
these
issues,
we
need
deeply
understand
the
structural
evolution,
redox
mechanisms,
electrode/electrolyte
interface
reactions
during
cycling.
Recently,
rapid
developments
in
synchrotron
X-ray
techniques,
neutron-based
resources,
magnetic
resonance,
as
well
optical
electron
microscopy
brought
numerous
opportunities
gain
deep
insights
into
Na-storage
behaviors
of
cathodes.
In
this
review,
summarize
detection
principles
advanced
characterization
techniques
used
with
typical
NASICON-structured
SIBs.
The
special
focus
is
on
both
operando
ex
situ
help
investigate
relationships
among
phase,
composition,
valence
variations
within
electrochemical
responses.
Fresh
measurements
theoretical
computations
are
also
included
reveal
kinetics
energy-storage
mechanisms
electrodes
upon
charge/discharge.
Finally,
describe
potential
new
NASICON-cathodes
optimized
SIB
systems,
foreseeing
a
bright
future
them,
achievable
through
rational
application
diagnostic
methods.
eScience,
Год журнала:
2023,
Номер
3(5), С. 100139 - 100139
Опубликована: Май 4, 2023
Sodium-ion
batteries
(SIBs)
have
stepped
into
the
spotlight
as
a
promising
alternative
to
lithium-ion
for
large-scale
energy
storage
systems.
However,
SIB
electrode
materials,
in
general,
inferior
performance
than
their
lithium
counterparts
because
Na+
is
larger
and
heavier
Li+.
Heterostructure
engineering
strategy
overcome
this
intrinsic
limitation
achieve
practical
SIBs.
We
provide
brief
review
of
recent
progress
heterostructure
materials
research
on
how
phase
interface
influences
transport
properties.
Efficient
strategies
design
fabrication
heterostructures
(in
situ
methods)
are
discussed,
with
focus
formation
mechanism.
The
heterostructure’s
influence
properties
arises
primarily
from
local
distortions
structure
chemomechanical
coupling
at
interface,
which
may
accelerate
ion/electron
diffusion,
create
additional
active
sites,
bolster
structural
stability.
Finally,
we
offer
our
perspectives
existing
challenges,
knowledge
gaps,
opportunities
advancement
means
develop
practical,
high-performance
sodium-ion
batteries.
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(46)
Опубликована: Июль 4, 2023
Abstract
Rechargeable
sodium‐ion
batteries
(SIBs)
are
emerging
as
a
viable
alternative
to
lithium‐ion
battery
(LIB)
technology,
their
raw
materials
economical,
geographically
abundant
(unlike
lithium),
and
less
toxic.
The
matured
LIB
technology
contributes
significantly
digital
civilization,
from
mobile
electronic
devices
zero
electric‐vehicle
emissions.
However,
with
the
increasing
reliance
on
renewable
energy
sources
anticipated
integration
of
high‐energy‐density
into
grid,
concerns
have
arisen
regarding
sustainability
lithium
due
its
limited
availability
consequent
price
escalations.
In
this
context,
SIBs
gained
attention
potential
storage
alternative,
benefiting
abundance
sodium
sharing
electrochemical
characteristics
similar
LIBs.
Furthermore,
high‐entropy
chemistry
has
emerged
new
paradigm,
promising
enhance
density
accelerate
advancements
in
meet
growing
demands.
This
review
uncovers
fundamentals,
current
progress,
views
future
SIB
technologies,
discussion
focused
design
novel
materials.
crucial
factors,
such
morphology,
crystal
defects,
doping,
that
can
tune
electrochemistry,
which
should
inspire
young
researchers
identify
work
challenging
research
problems,
also
reviewed.
ACS Nano,
Год журнала:
2023,
Номер
17(13), С. 12530 - 12543
Опубликована: Июнь 29, 2023
Sodium
layered
oxides
always
suffer
from
sluggish
kinetics
and
deleterious
phase
transformations
at
deep-desodiation
state
(i.e.,
>4.0
V)
in
O3
structure,
incurring
inferior
rate
capability
grievous
capacity
degradation.
To
tackle
these
handicaps,
here,
a
configurational
entropy
tuning
protocol
through
manipulating
the
stoichiometric
ratios
of
inactive
cations
is
proposed
to
elaborately
design
Na-deficient,
O3-type
NaxTmO2
cathodes.
It
found
that
electrons
surrounding
oxygen
TmO6
octahedron
are
rearranged
by
introduction
MnO6
TiO6
octahedra
Na-deficient
Na0.83Li0.1Ni0.25Co0.2Mn0.15Ti0.15Sn0.15O2-δ
(MTS15)
with
expanded
O-Na-O
slab
spacing,
giving
enhanced
Na+
diffusion
structural
stability,
as
disclosed
theoretical
calculations
electrochemical
measurements.
Concomitantly,
effect
contributes
improved
reversibility
Co
redox
phase-transition
behaviors
between
P3,
clearly
revealed
ex
situ
synchrotron
X-ray
absorption
spectra
diffraction.
Notably,
prepared
entropy-tuned
MTS15
cathode
exhibits
impressive
(76.7%
retention
10
C),
cycling
stability
(87.2%
after
200
cycles)
reversible
109.4
mAh
g-1,
good
full-cell
performance
(84.3%
100
cycles),
exceptional
air
stability.
This
work
provides
an
idea
for
how
high-entropy
sodium
high-power
density
storage
systems.
It
has
long
been
the
goal
to
develop
rechargeable
batteries
with
low
cost
and
cycling
life.
Polyanionic
compounds
offer
attractive
advantages
of
robust
frameworks,
long-term
stability,
cost-effectiveness,
making
them
ideal
candidates
as
electrode
materials
for
grid-scale
energy
storage
systems.
In
past
few
years,
various
polyanionic
electrodes
have
synthesized
developed
sodium
storage.
Specifically,
doping
regulation
including
cation
anion
shown
a
great
effect
in
tailoring
structures
achieve
extraordinary
electrochemical
performance.
this
review,
recent
progress
sodium-ion
(SIBs)
is
summarized,
their
underlying
mechanisms
improving
properties
are
discussed.
Moreover,
challenges
prospects
design
advanced
SIBs
put
forward.
anticipated
that
further
versatile
strategies
developing
high-performance
devices
can
be
inspired.
Advanced Energy Materials,
Год журнала:
2022,
Номер
12(19)
Опубликована: Апрель 5, 2022
Abstract
Layered
VS
2
holds
great
potential
as
a
cathode
material
for
aqueous
Zn‐ion
batteries
owing
to
its
large
interlayer
spacing,
high
electrical
conductivity,
and
the
rich
redox
chemistry
of
vanadium.
Nevertheless,
structural
instability
during
charge/discharge
severely
hinders
further
development
cathodes.
Herein,
distinctive
hierarchitectures
1T‐VS
nanospheres
assembled
by
nanosheets,
which
feature
abundant
active
sites,
superior
electron/ion
transport
property,
robust
structure,
are
developed.
More
intriguingly,
Zn
2+
“pillars”
residing
in
interlayers,
achieved
controlling
charge
cut‐off
voltage
first
proven
reinforce
layered
structure
upon
repeated
insertion/extraction,
redefining
commonly
perceived
“dead
”.
Hence,
exceptional
rate
performance
(212.9
102.1
mA
h
g
−1
at
0.1
5
A
,
respectively)
ultralong
cycling
life
(86.7%
capacity
retention
over
2000
cycles
)
obtained.
The
rapid
highly
reversible
(de)
intercalation
behavior
within
is
verified
first‐principles
computations
multiple
ex‐situ
characterizations.
Finally,
flexible
quasi‐solid‐state
rechargeable
battery
employing
tailored
demonstrates
application
prospects
wearable
devices.
This
work
provides
new
perspectives
prolonging
lifespan
Zn‐storage
materials
simply
modulating
processes.
