Materials Horizons,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
With
broad
usage
of
lithium-ion
batteries
(LIBs)
in
electronic
devices
and
electric
vehicles
(EVs),
a
large
number
decommissioned
LIBs
will
be
generated,
which
cause
serious
environmental
pollution
waste
resources.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(31)
Published: May 21, 2024
Abstract
Ni−rich
cathodes
are
hopeful
materials
for
advanced
lithium−ion
batteries
(LIBs)
due
to
high
capacity.
Nonetheless,
the
chemical
crosstalk
triggered
by
reactive
oxygen
(O
*
)
represents
a
critical
factor
in
thermal
runaway
(TR).
Currently,
there
few
effective
means
prevent
this
parasitic
reaction.
Here,
inspired
O
scavenging
effect
of
β−carotene
living
organisms,
it
is
innovatively
identified
that
can
impede
TR
restraining
escape
during
decomposition
nickel−rich
cathodes.
Using
LiNi
0.6
Co
0.2
Mn
2
as
model
and
extending
higher
nickel
content
(LiNi
0.8
0.1
,
0.9
0.05
),
demonstrated
undergo
an
situ
copolymerization
reaction
trapping
thereby
attenuating
crosstalk.
Additionally,
generated
copolymer
also
adjust
band
center
2p
orbitals
delithiated
cathode,
alleviating
charge
compensation
behavior
anions,
thus
delaying
phase
transition
charged
.
As
result,
trigger
temperature
NCM811∣Graphite
pouch
cell
increased
from
131.0
195.0
°C
maximum
reduced
657.8
412.4
°C.
This
work
introduces
new
simple
strategy
designing
functional
additives
block
TR,
offering
promising
avenue
advancing
safety
LIBs.
Materials Horizons,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
With
broad
usage
of
lithium-ion
batteries
(LIBs)
in
electronic
devices
and
electric
vehicles
(EVs),
a
large
number
decommissioned
LIBs
will
be
generated,
which
cause
serious
environmental
pollution
waste
resources.