ACS Applied Materials & Interfaces,
Journal Year:
2023,
Volume and Issue:
15(34), P. 40385 - 40396
Published: Aug. 18, 2023
Lithium
manganese
oxide
(LiMn2O4)
is
a
prevalent
cathode
material
for
lithium-ion
batteries
due
to
its
low
cost,
abundant
sources,
and
ecofriendliness.
However,
capacity
fade,
energy
density,
fast
auto-discharge
hinders
large-scale
commercialization.
Consequently,
scientists
are
urged
achieve
high-performance
LMO
cathodes
through
doping
surface
modification
using
wide
range
of
transition
metals,
polymers,
carbon
precursors.
Few
studies
have
considered
the
potential
high-valence
metal
oxides
in
stabilizing
LMO's
cycling
process
enhancing
overall
battery
performance.
In
this
work,
we
report
synthesis
surface-modified
lithium
tungsten
(WVIO3).
Different
WO3
wt
%
were
investigated
before
settling
0.5%WO3-LMO
as
synergic
LMO.
Using
galvanostatic
charge–discharge,
0.50
WO3-LMO
exhibited
better
rate
capability
by
retaining
51%
initial
at
20C
rate,
compared
34%
pristine
Furthermore,
cyclic
voltammetry
different
scan
rates
showed
that
possesses
ion
diffusion
than
LMO,
around
10–11
10–13
cm2·s–1
respectively.
Finally,
situ
Raman
spectroscopy,
reaction
mechanisms
during
investigated,
operando
accelerating
calorimetry
(ARC)
visualized
thermal
stability
highlighted
use
safe
high-voltage
automotive
applications.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(18)
Published: Feb. 23, 2024
Abstract
Given
that
the
non‐aqueous
electrolyte
in
Li‐ion
battery
plays
a
specific
role
as
an
ion‐transport
medium
and
interfacial
modifier
for
both
cathode
anode,
understanding
evaluating
evolution
degradation
of
electrolytes
throughout
life
cycle
is
fundamental
concern
within
lithium‐ion
(LIB)
community.
This
article
provides
comprehensive
overview
decomposition
processes,
mechanisms,
effects
on
performance,
characterization
techniques,
modeling
analysis.
First,
it
thoroughly
discusses
processes
mechanisms
involved
from
two
primary
perspectives:
1)
formation
electrode‐electrolyte
interphase
2)
bulk
electrolyte.
Subsequently,
systematically
outlines
performance.
The
further
introduces
cutting‐edge
detection
techniques
used
to
assess
degradation,
with
emphasis
quantitative
methods
analyzing
residual
practical
cells.
Moreover,
summarizes
advanced
physical
models
decomposition.
Finally,
paper
concludes
by
offering
insights
into
future
trends
potential
challenges
research,
offers
valuable
references
guidance
exploration
LIBs.
Energy & Environmental Science,
Journal Year:
2024,
Volume and Issue:
17(8), P. 2686 - 2733
Published: Jan. 1, 2024
This
review
examines
the
key
process
of
lithium-ion
battery
cell
formation.
Influencing
factors,
challenges,
experimental
and
simulation
tools
required
for
knowledge-based
design
current
emerging
technologies
are
addressed.
ACS Energy Letters,
Journal Year:
2023,
Volume and Issue:
8(11), P. 4572 - 4596
Published: Oct. 10, 2023
The
role
of
the
cathode–electrolyte
interphase
(CEI)
on
battery
performance
has
been
historically
overlooked
due
to
anodic
stability
carbonate-based
electrolytes
used
in
Li-ion
batteries.
Yet,
over
past
few
decades,
degradation
device
lifetime
attributed
cathode
surface
reactivity,
ion
transport
at
cathode/electrolyte
interface,
and
structural
transformations
that
occur
surface.
In
this
review,
we
highlight
recent
progress
analytical
techniques
have
facilitated
these
insights
elucidated
not
only
CEI
composition
but
also
spatial
distribution
electrolyte
decomposition
products
as
well
cathode-driven
reactions
during
operation.
With
a
deeper
understanding
processes
lead
its
formation,
advanced
characterization
tools
can
unlock
routes
mitigate
impedance
rise,
particle
cracking,
transition
metal
dissolution,
consumption,
ultimately
enabling
longer
lasting,
safer
ChemElectroChem,
Journal Year:
2023,
Volume and Issue:
unknown
Published: May 8, 2023
Research
and
development
on
electrochemical
energy
storage
conversion
(EESC)
devices,
viz.
fuel
cells,
supercapacitors
batteries,
are
highly
significant
in
realizing
carbon
neutrality
a
sustainable
economy.
Component
corrosion/degradation
remains
major
threat
to
EESC
device's
long-term
durability.
Here,
we
provide
comprehensive
account
of
the
corrosion
degradation
issues.
Discussions
mainly
polymer
electrolyte
membrane
metal-ion
metal-air
batteries
supercapacitors.
Corrosion
bipolar
plates/current
collectors,
corrosion,
electrode/electrocatalyst
degradation,
various
mitigation
approaches
detailed.
The
collective
information
provided
could
help
develop
devices
with
better
ACS Applied Materials & Interfaces,
Journal Year:
2023,
Volume and Issue:
15(34), P. 40488 - 40495
Published: Aug. 18, 2023
Dry
processing
is
a
promising
method
for
high-performance
and
low-cost
lithium-ion
battery
manufacturing
which
uses
polytetrafluoroethylene
(PTFE)
as
binder.
However,
the
electrochemical
stability
of
PTFE
binder
in
cathodes
generated
chemistry
cathode
electrolyte
interphase
(CEI)
layers
are
rarely
reported.
Herein,
CEI
properties
studied
via
cycling
high-loading
dry-processed
electrodes
electrolytes
with
LiPF6
or
LiClO4
salt.
Using
salt
can
eliminate
other
possible
F
sources,
allowing
decomposition
to
be
studied.
The
detection
LiF
cells
confirms
that
undergoes
side
reaction(s)
cathodes.
When
compared
LiClO4,
layer
much
thicker
when
used
These
results
provide
insights
into
may
potentially
enlighten
development
binders
high
efficiency
long
durability
DP-based
LIBs.
ACS Nano,
Journal Year:
2023,
Volume and Issue:
17(20), P. 20434 - 20444
Published: Oct. 13, 2023
The
solid
electrolyte
interphase
(SEI)
is
a
key
component
of
lithium-ion
battery
forming
during
the
first
few
dischage/charge
cycles
at
interface
between
anode
and
electrolyte.
SEI
passivates
anode–electrolyte
by
inhibiting
further
decomposition,
extending
battery's
cycle
life.
Insights
into
growth
evolution
in
terms
structure
composition
remain
difficult
to
access.
To
unravel
formation
layer
cycles,
operando
electrochemical
liquid
cell
scanning
transmission
electron
microscopy
(ec-LC-STEM)
employed
monitor
real
time
nanoscale
processes
that
occur
their
native
environment.
results
show
not
one-step
process
but
comprises
multiple
steps.
initiated
low
potential
charge
decomposition
leading
nucleation
inorganic
nanoparticles.
Thereafter,
continues
subsequent
an
island-like
layer.
Eventually,
dense
formed
with
mosaic
composed
larger
patches
embedded
matrix
organic
compounds.
While
model
for
generally
accepted,
our
observations
document
detail
how
complex
built
up
discharge/charge
cycling.
