Abstract
Reducing
our
carbon
footprint
is
one
of
the
most
pressing
issues
facing
humanity
today.
The
technology
Li‐rechargeable
batteries
permeating
every
corner
lives
as
a
result
efforts
to
reduce
use
energy.
Batteries
can
be
seen
metaphorically
“living
cells”,
and
approaching
future
that
requires
observing
understanding
real‐time
phenomena
occur
inside
battery
systems
during
(electro)chemical
reactions.
In
this
regard,
in
situ
analysis
techniques
have
made
significant
progress
toward
basic
science
finding
better
performance‐improving
factors.
There
are
various
methods
utilizing
electromagnetic
waves,
electrons,
neutrons
perform
multifaceted
analyses
from
atomic
macroscopic
scale.
Now
opportune
moment
construct
comprehensive
guide
facilitates
design
advanced
systems,
adopting
highly
discerning
all‐encompassing
approach
these
cutting‐edge
technologies.
review
article,
we
discuss
organize
key
components
such
capabilities,
limitations,
practical
tips
with
perspective
on
techniques.
Moreover,
article
covers
wide
range
information
nano
micrometer
scale,
electronic,
atomic,
crystal,
morphological
structures,
stereoscopic
perspectives
considering
probing
depth.
Advanced Materials,
Год журнала:
2024,
Номер
36(16)
Опубликована: Янв. 13, 2024
Abstract
The
limited
cyclability
of
high‐specific‐energy
layered
transition
metal
oxide
(LiTMO
2
)
cathode
materials
poses
a
significant
challenge
to
the
industrialization
batteries
incorporating
these
materials.
This
limitation
can
be
attributed
various
factors,
with
intrinsic
behavior
crystal
structure
during
cycle
process
being
key
contributor.
These
factors
include
phase
induced
cracks,
reduced
Li
active
sites
due
Li/Ni
mixing,
and
slower
+
migration.
In
addition,
presence
synthesis‐induced
heterogeneous
phases
lattice
defects
cannot
disregarded
as
they
also
contribute
degradation
in
performance.
Therefore,
gaining
profound
understanding
intricate
relationship
among
material
synthesis,
structure,
performance
is
imperative
for
development
LiTMO
.
paper
highlights
pivotal
role
structural
play
provides
comprehensive
overview
how
control
influence
specific
pathways
evolution
synthesis
process.
it
summarizes
scientific
challenges
associated
diverse
modification
approaches
currently
employed
address
cyclic
failure
overarching
goal
provide
readers
insights
into
study
Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 5, 2025
Abstract
The
bimetallic
synergies
effect
and
combined
conversion/alloying
mechanism
endow
thiospinel
FeIn
2
S
4
with
great
potential
as
an
anode
material
for
sodium‐ion
batteries
(SIBs).
However,
their
inconsistent
synthesis,
severe
volumetric
expansion,
sluggish
reaction
kinetics
typically
lead
to
unsatisfactory
cyclic
stability
rate
capability.
Herein,
organic
framework
derived
@N/S‐C
microrods
Fe
vacancies
is
presented
fast,
durable,
reversible
sodium
storage.
presence
of
significantly
modulates
the
d
‐band
center
decreases
strength
Fe─S
bond
facilitating
sodiation
jointly.
Moreover,
a
thin
stable
solid
electrolyte
interface
film
inorganic‐rich
components
formed
by
induction.
Combined
N,
co‐doped
porous
carbon
matrix,
optimal
sample
delivers
excellent
capability
381
mAh
g
−1
at
10
A
performance
(448
after
500
cycles
1
).
Furthermore,
assembled
full‐cells
also
exhibit
superior
electrochemical
87.5%
capacity
retention
long‐term
evaluations.
This
work
presents
promising
strategy
structural
regulation
sulfides
advanced
anodes
SIBs.
Advanced Energy Materials,
Год журнала:
2024,
Номер
14(11)
Опубликована: Янв. 26, 2024
Abstract
Single‐crystal
Ni‐rich
LiNi
1−x−y
Co
x
Mn
y
O
2
(NCM)
cathodes
have
garnered
widespread
attention
in
the
lithium‐ion
battery
community
due
to
their
unique
advantages
mechanical
performance
and
ability
minimize
interfacial
electrochemical
side
reactions.
The
synthesis
of
single‐crystal
materials
with
monodisperse
appropriate
size,
minimal
lattice
defects,
highly
ordered
structures
is
key
for
high‐performance
batteries.
However,
achieving
this
goal
poses
challenges
lack
in‐depth
understanding
regarding
specific
experimental
parameters
solid
reaction
mechanism
during
process.
In
review,
aim
provide
an
analysis
critical
process
involved
impact
on
crystal
morphology,
structure,
performance.
Consequently,
first
section
focuses
effect
precursor
lithium
salt,
atmosphere,
sintering
procedure.
second
section,
study
delves
into
discussion
growth
mechanism.
Lastly,
it
concluded
by
highlighting
prospects
associated
application
NCM
cathodes.
Abstract
Layered
Cobalt
(Co)‐free
Nickel
(Ni)‐rich
cathode
materials
have
attracted
much
attention
due
to
their
high
energy
density
and
low
cost.
Still,
further
development
is
hampered
by
material
instability
caused
the
chemical/mechanical
degradation
of
material.
Although
there
are
numerous
doping
modification
approaches
improve
stability
layered
materials,
these
still
in
laboratory
stage
require
research
before
commercial
application.
To
fully
exploit
potential
a
more
comprehensive
theoretical
understanding
underlying
issues
necessary,
along
with
active
exploration
previously
unrevealed
mechanisms.
This
paper
presents
phase
transition
mechanism
Co‐free
Ni‐rich
existing
problems,
state‐of‐the‐art
characterization
tools
employed
study
transition.
The
causes
crystal
structure
degradation,
interfacial
instability,
mechanical
elaborated,
from
material's
its
atomic
orbital
splitting.
By
organizing
summarizing
mechanisms,
this
aims
establish
connections
among
common
problems
identify
future
priorities,
thereby
facilitating
rapid
materials.
Advanced Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Июнь 17, 2024
Abstract
Microstructural
engineering
on
nickel‐rich
layered
oxide
(NRLO)
cathode
materials
is
considered
a
promising
approach
to
increase
both
the
capacity
and
lifespan
of
lithium‐ion
batteries
by
introducing
high
valence‐state
elements.
However,
rational
regulation
NRLO
microstructures
based
deep
understanding
its
enhancement
mechanism
remains
challenging.
Herein
for
first
time,
it
demonstrated
that
an
14
mAh
g
−1
in
reversible
at
cycle
can
be
achieved
via
tailoring
micro
nano
structure
through
tungsten.
Aberration‐corrected
scanning
transmission
electron
microscopy
(STEM)
characterization
reveals
formation
modified
microstructure
featured
as
coherent
spinel
twin
boundaries.
Theoretical
modeling
electrochemical
investigations
further
demonstrate
related
such
boundaries,
which
lower
Li
+
diffusion
barrier
thus
allow
more
participate
deeper
phase
transitions.
Meanwhile,
surface
grain
boundaries
NRLOs
are
found
generating
dense
uniform
LiW
x
O
y
phase,
extends
life
reducing
side
reactions
with
electrolytes.
This
work
enables
comprehensive
capacity‐increased
endows
remarkable
potential
microstructural
capacity‐
lifespan‐increased
NRLOs.
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.
Abstract
To
drive
electronic
devices
for
a
long
range,
the
energy
density
of
Li‐ion
batteries
must
be
further
enhanced,
and
high‐energy
cathode
materials
are
required.
Among
materials,
LiCoO
2
(LCO)
is
one
most
promising
candidates
when
charged
to
higher
voltages
over
4.3
V.
However,
high‐voltage
LCO
confronted
with
severe
surface
bulk
issues
inducing
poor
cyclic
stability.
completely
unleash
potential
cathodes,
more
comprehensive
theoretical
understanding
underlying
necessary,
along
active
exploration
previous
modifications.
This
paper
mainly
presents
degradation
mechanisms
under
high
voltage,
formation
evolution
electrolyte
interface,
engineering
strategies
employed
enhance
cell
performance.
By
organizing
summarizing
these
modifications,
this
work
aims
establish
associations
among
common
research
suggest
future
priorities,
thus
facilitating
rapid
development
LCO.
Angewandte Chemie International Edition,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 1, 2025
Li-
and
Mn-rich
layered
oxides
exhibit
high
specific
capacity
due
to
the
cationic
anionic
reaction
process
during
high-voltage
cycling
(≥4.6
V).
However,
they
face
challenges
such
as
low
initial
coulombic
efficiency
(~70
%)
poor
stability.
Here,
we
propose
a
combination
of
H3BO3
treatment
temperature
calcination
construct
shell
with
vacancy
on
surface
Li1.2Ni0.2Mn0.6O2
(LLNMO).
The
produces
lattice
distortion,
forming
an
oxidized
On-
(0