Energy & environment materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 1, 2025
Direct
recycling
methods
offer
a
non‐destructive
way
to
regenerate
degraded
cathode
material.
The
materials
be
recycled
in
the
industry
typically
constitute
mixture
of
various
extracted
from
wide
variety
retired
lithium‐ion
batteries.
Bridging
gap,
direct
method
using
low‐temperature
sintering
process
is
reported.
LMO
(LiMn
2
O
4
)
and
NMC
(LiNiCoMnO
LIBs
was
successfully
regenerated
by
proposed
with
low
temperature
300°C
for
h.
Advanced
characterization
tools
were
utilized
validate
full
recovery
crystal
structure
mixture.
After
regeneration,
LMO/NMC
shows
an
initial
capacity
144.0
mAh
g
−1
retention
95.1%
at
0.5
C
250
cycles.
also
83
C,
which
slightly
higher
compared
pristine
As
result
process,
electrochemical
performance
recovered
same
level
as
Life‐cycle
assessment
results
emphasized
90.4%
reduction
energy
consumption
51%
PM2.5
emissions
battery
packs
Journal of Materials Chemistry A,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
We
successfully
fabricated
NCM811
co-coated
with
Al
2
O
3
and
LiNbO
.
enhances
structural
stability,
while
improves
Li
+
ion
conduction.
This
co-coating
strategy
electrochemical
performance
compared
to
single
coating
methods.
The
ongoing
advancements
in
lithium-ion
battery
technology
are
pivotal
propelling
the
performance
of
modern
electronic
devices
and
electric
vehicles.
Amongst
various
components,
cathode
material
significantly
influences
performance,
such
as
specific
capacity,
capacity
retention
rate
performance.
Ternary
materials,
composed
nickel,
manganese,
cobalt
(NCM),
offer
a
balanced
combination
these
traits.
Recent
developments
focus
on
elemental
doping,
which
involves
substituting
fraction
NCM
constituent
ions
with
alternative
cations
aluminum,
titanium,
or
magnesium.
This
strategic
substitution
aims
to
enhance
structural
stability,
increase
retention,
improve
resistance
thermal
runaway.
Doped
ternary
materials
have
shown
promising
results,
improvements
cycle
life
operational
safety.
However,
quest
for
optimal
doping
elements
concentrations
persists
maximize
while
minimizing
cost
environmental
impact,
ensuring
progression
towards
high-energy-density,
durable,
safe
technologies.
Energy Advances,
Год журнала:
2024,
Номер
3(8), С. 1869 - 1893
Опубликована: Янв. 1, 2024
Doping,
coating,
surface
modification,
formation
of
composites
and
control
crystalline
orientation
can
the
capacity
retention
Ni-rich
cathodes.
Furthermore,
design
Co-free
cathodes
may
provide
a
cost-effective
solution.
ACS Applied Energy Materials,
Год журнала:
2024,
Номер
7(7), С. 2707 - 2714
Опубликована: Март 18, 2024
Six
kinds
of
acetic
acid
esters
substituted
with
a
different
number
fluorine
atoms
were
systematically
investigated
as
diluent
for
the
nearly
saturated
LiBF4-based
electrolyte
solutions.
Of
these,
only
one
fluorinated
ester
was
found
to
be
suitable
dilution
and
greatly
improve
charge–discharge
cycle
performance
LiNi0.8Co0.1Mn0.1O2
(NCM811)
electrodes.
The
charging
voltage
raised
4.6
V
increase
discharge
capacities.
structure
thermal
stability
diluted
solutions,
well
surface
NCM811
electrodes
after
repeated
charge/discharge
cycles,
analyzed
elucidate
mechanism
improved
performance.
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 4, 2025
In
the
pursuit
to
increase
energy
density
of
lithium-ion
batteries
(LIBs),
considerable
efforts
have
focused
on
developing
high-capacity
cathode
materials.
While
Ni-rich
(Ni
≥
80
at.
%)
layered
materials
are
considered
a
viable
commercial
option,
surface
engineering
is
crucial
for
enhancing
their
cycle
performance
successful
implementation
in
LIBs.
Various
functional
been
explored
effective
protection
and
stabilization
reduce
interfacial
resistance
enhance
structural
stability
this
context,
we
propose
coating
with
nonstoichiometric
lithium
hexagonal
tungsten
bronze
(LixWO3)
via
simple
wet-coating.
We
demonstrate
that
distinctive
physicochemical
properties
LixWO3,
such
as
its
high
ionic
conductivity
(∼10-6
S
cm-1)
mechanical
strength
(∼236.0
MPa),
beneficial
by
modulating
reactions
without
undesirable
loss
reversible
capacity.
practice,
LixWO3
layer
induces
significant
reduction
strain
relaxation
upon
repeated
Li+
insertion
extraction.
Our
findings
provide
insights
into
development
highly
reliable
high-energy
