Angewandte Chemie,
Год журнала:
2024,
Номер
136(34)
Опубликована: Июнь 7, 2024
Abstract
Layered
oxides
with
ultrahigh
nickel
content
are
considered
promising
high
energy
cathode
materials.
However,
their
cycle
stability
is
constrained
by
a
series
of
heterogeneous
structural
transformations
during
the
complex
solid‐state
lithiation
process.
By
in‐depth
investigation
into
process
LiNi
0.92
Co
0.04
Mn
O
2
,
it
found
that
protruded
parts
on
surface
precursor
particles
tend
to
be
surrounded
locally
excessive
LiOH,
which
promotes
formation
rigid
and
dense
shell
early
stage
The
will
hinder
diffusion
lithium
topotactic
within
particles,
culminating
in
spatially
intermediates
can
impair
electrochemical
properties
material.
spheroidization
enhance
uniformity
evolution
solid‐phase
lithiation.
Ultrahigh
cathodes
derived
from
spherical
precursors
demonstrate
initial
discharge
specific
capacity
(234.2
mAh
g
−1
range
2.7–4.3
V)
retention
(89.3
%
after
200
cycles),
significantly
superior
non‐spherical
samples.
This
study
not
only
sheds
light
intricate
relationship
between
shape
transformation
but
also
introduces
novel
strategy
for
enhancing
performance
through
spheroidization.
Advanced Energy Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Июнь 29, 2024
Abstract
Cathode
materials
are
the
core
components
of
lithium‐ion
batteries
owing
to
determination
practical
voltage
and
effective
energy
battery
system.
However,
advanced
cathodes
have
faced
challenges
related
cation
migration
intermixing.
In
this
review,
study
summarizes
structural
failure
mechanisms
due
mixing
cathodes,
including
Ni‐rich
Li‐rich
layered
spinel,
olivine,
disordered
rock‐salt
materials.
This
review
starts
by
discussing
degradation
caused
intermixing
in
different
focusing
on
electronic
structure,
crystal
electrode
structure.
Furthermore,
optimization
strategies
for
inhibition
rational
utilization
systematically
encapsulated.
Last
but
not
least,
remaining
proposed
perspectives
highlighted
future
development
cathodes.
The
accurate
analysis
using
characterization,
precise
control
material
synthesis,
multi‐dimensional
synergistic
modification
will
be
key
research
areas
provides
a
comprehensive
understanding
emerge
as
pivotal
controllable
factors
further
Abstract
Electrochemical
energy
systems
mark
a
pivotal
advancement
in
the
sector,
delivering
substantial
improvements
over
conventional
systems.
Yet,
major
challenge
remains
deficiency
storage
technology
to
effectively
retain
produced.
Amongst
these
are
batteries
and
supercapacitors,
renowned
for
their
versatility
efficiency,
which
depend
heavily
on
quality
of
electrode
materials.
Metal
oxide
composites,
particular,
have
emerged
as
highly
promising
due
synergistic
effects
that
significantly
enhance
functionality
efficiency
beyond
individual
components.
This
review
explores
application
metal
composites
electrodes
SCs,
focusing
various
material
perspectives
synthesis
methodologies,
including
exfoliation
hydrothermal/solvothermal
processes.
It
also
examines
how
methods
influence
device
performance.
Furthermore,
confronts
challenges
charts
future
directions
composite-based
systems,
critically
evaluating
aspects
such
scalability
synthesis,
cost-effectiveness,
environmental
sustainability,
integration
with
advanced
nanomaterials
electrolytes.
These
factors
crucial
advancing
next-generation
technologies,
striving
performance
while
upholding
sustainability
economic
viability.
Abstract
The
development
and
application
of
lithium‐ion
batteries
present
a
dual
global
prospect
opportunity
challenge.
With
conventional
energy
sources
facing
reserve
shortages
environmental
issues,
have
emerged
as
transformative
technology
over
the
past
decade,
owing
to
their
superior
properties.
They
are
poised
for
exponential
growth
in
realms
electric
vehicles
storage.
cathode,
vital
component
batteries,
undergoes
chemical
electrochemical
reactions
at
its
surface
that
directly
impact
battery's
density,
lifespan,
power
output,
safety.
Despite
increasing
density
cathodes
commonly
encounter
surface‐side
with
electrolyte
exhibit
low
conductivity,
which
hinder
utility
high‐power
energy‐storage
applications.
Surface
engineering
has
compelling
strategy
address
these
challenges.
This
paper
meticulously
examines
principles
progress
cathode
materials,
providing
insights
into
potential
advancements
charting
trajectory
practical
implementation.
Next Materials,
Год журнала:
2024,
Номер
2, С. 100145 - 100145
Опубликована: Янв. 1, 2024
The
widespread
adoption
of
lithium-ion
batteries
has
ushered
in
a
transformative
era
across
industries,
powering
an
array
devices
from
portable
electronics
to
electric
vehicles.
This
review
explores
recent
advancements
machine
learning
tools
tailored
for
improving
battery
materials,
management
strategies,
and
system-level
optimization.
It
provides
comprehensive
overview
the
current
landscape,
emphasizing
less-explored
evolution
algorithms
materials.
Machine
integration
enhances
our
understanding
material
properties,
accelerates
discovery
efficient
compositions,
contributes
development
more
durable
batteries.
article
also
delves
into
learnings
role
predicting
State
Health
remaining
useful
life,
crucial
proactive
maintenance.
highlights
how
integrating
field
potential
revolutionize
design
accelerate
energy
storage
technology,
promising
sustainable
technologically
advanced
future.
Journal of the American Chemical Society,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 24, 2024
Direct
recycling
is
considered
to
be
the
next-generation
technology
for
spent
lithium-ion
batteries
due
its
potential
economic
benefits
and
environmental
friendliness.
For
layered
oxide
cathode
materials,
an
irreversible
phase
transition
a
rock-salt
structure
near
particle
surface
impedes
reintercalation
of
lithium
ions,
thereby
hindering
compensation
process
from
fully
restoring
composition
defects
repairing
failed
structures.
We
introduced
transition-metal
hydroxide
precursor,
utilizing
catalytic
activity
produced
during
annealing
convert
into
that
provides
fast
migration
pathways
ions.
The
material
repair
synthesis
processes
share
same
heating
program,
enabling
added
precursor
undergo
topological
transformation
form
targeted
oxide.
This
regenerated
exhibits
performance
superior
commercial
cathodes
maintains
88.4%
initial
capacity
after
1000
cycles
in
1.3
Ah
pouch
cell.
Techno-economic
analysis
highlights
advantages
over
pyrometallurgical
hydrometallurgical
methods,
indicating
practical
application.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Май 7, 2024
Abstract
The
burgeoning
field
of
energy
storage
battery
innovation
has
sparked
a
relentless
pursuit
high‐capacity
anode
materials
to
meet
the
escalating
demand
for
improved
density.
Typically,
these
batteries
experience
significant
volume
changes
during
cycles,
which
severely
test
structural
integrity
and
lifespan
electrode
configurations.
High‐performance
binders
have
emerged
as
critical
component
in
addressing
this
challenge.
Although
they
represent
small
proportion
battery's
composition,
play
pivotal
role
enhancing
electrochemical
efficiency,
safety,
cost‐effectiveness
batteries.
advancement
rendered
traditional
inadequate,
prompting
development
functional
that
are
increasingly
being
refined
requirements.
This
article
began
by
outlining
requirements
within
electrodes,
examining
cutting‐edge
characterization
methodologies,
discussing
“structure‐function”
paradigm
underpins
binder
selection.
It
then
showcased
research
advancements
identifying
suitable
materials,
including
silicon
(Si),
phosphorus
(P),
tin
(Sn),
antimony
(Sb),
germanium
(Ge).
In
summary,
contemplated
future
direction
application
materials.
aim
is
facilitate
progression
high‐performance,
anodes,
thereby
accelerating
high‐energy‐density
lithium‐ion
sodium‐ion
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(34)
Опубликована: Июнь 7, 2024
Abstract
Layered
oxides
with
ultrahigh
nickel
content
are
considered
promising
high
energy
cathode
materials.
However,
their
cycle
stability
is
constrained
by
a
series
of
heterogeneous
structural
transformations
during
the
complex
solid‐state
lithiation
process.
By
in‐depth
investigation
into
process
LiNi
0.92
Co
0.04
Mn
O
2
,
it
found
that
protruded
parts
on
surface
precursor
particles
tend
to
be
surrounded
locally
excessive
LiOH,
which
promotes
formation
rigid
and
dense
shell
early
stage
The
will
hinder
diffusion
lithium
topotactic
within
particles,
culminating
in
spatially
intermediates
can
impair
electrochemical
properties
material.
spheroidization
enhance
uniformity
evolution
solid‐phase
lithiation.
Ultrahigh
cathodes
derived
from
spherical
precursors
demonstrate
initial
discharge
specific
capacity
(234.2
mAh
g
−1
range
2.7–4.3
V)
retention
(89.3
%
after
200
cycles),
significantly
superior
non‐spherical
samples.
This
study
not
only
sheds
light
intricate
relationship
between
shape
transformation
but
also
introduces
novel
strategy
for
enhancing
performance
through
spheroidization.
Abstract
Simultaneously
achieving
high‐energy‐density
and
high‐power‐density
is
a
crucial
yet
challenging
objective
in
the
pursuit
of
commercialized
power
batteries.
In
this
study,
atomic
layer
deposition
(ALD)
employed
combined
with
coordinated
thermal
treatment
strategy
to
construct
densely
packed,
electron‐ion
dual
conductor
(EIC)
protective
coating
on
surface
commercial
LiNi
0.5
Co
0.2
Mn
0.3
O
2
(NCM523)
cathode
material,
further
enhanced
by
gradient
Al
doping
(Al@EIC‐NCM523).
The
ultra‐thin
EIC
effectively
suppresses
side
reactions,
thereby
enhancing
stability
cathode‐electrolyte
interphase
(CEI)
at
high‐voltages.
EIC's
conduction
capability
provides
potent
driving
force
for
Li
+
transport
interface,
promoting
formation
rapid
ion
deintercalation
pathways
within
Al@EIC‐NCM523
bulk
phase.
Moreover,
strategic
serves
anchor
spacing
Ni
structure
Al@EIC‐NCM523,
curbing
irreversible
phase
transitions
high‐voltages
preserving
integrity
its
layered
structure.
Remarkably,
displays
an
unprecedented
rate
(114.7
mAh
g
−1
20
C),
sustained
cycling
performance
(capacity
retention
74.72%
after
800
cycles
10
C)
4.6
V.
These
findings
demonstrate
that
proposed
holds
significant
promise
developing
lithium‐ion
batteries
(LIBs).
Abstract
Although
possessing
well‐defined
nanostructures
and
excellent
multi‐electron
redox
properties,
polyoxometalate
clusters
have
poor
intrinsic
electrical
conductivity
are
prone
to
aggregation
due
large
surface
energy,
which
makes
them
difficult
be
fully
utilized
when
applying
as
electrode
materials
for
lithium‐ion
batteries.
In
this
paper,
monodisperse
K
7
MnV
13
O
38
(MnV
)
achieved
by
rationally
utilizing
nano‐sized
high
conductive
carbon
dots
(CDs)
stabilizers.
Benefiting
from
the
exposed
sites
of
(high
utilization
rate)
sufficient
interfaces
with
(extra
interfacial
energy
storage),
optimized
/10CDs
anode
delivers
a
discharge
capacity
up
1348
mAh
g
−1
at
current
density
0.1
A
exhibits
superb
rate/cycling
capabilities.
Density
functional
theory
(DFT)
calculations
verify
that
ionic
archway
channels
formed
between
CDs,
eliminating
bandgap
greatly
improving
electron/ion
CDs.
This
paper
paves
brand‐new
way
synthesis
maximization
extra
storage.
