Dalton Transactions,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
The
migration
energy
barriers
of
lithium
ions
in
SiO
x
/Fe@C
were
analyzed
four
distinct
directions,
along
with
the
corresponding
lithium-ion
diffusion
sites.
Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 25, 2025
Abstract
As
Sodium‐ion
battery
(SIB)
technology
progresses
toward
commercial
viability,
sustainable
end‐of‐life
(EOL)
management
is
critical.
Methods
for
recycling
key
components
such
as
hard
carbon
(HC),
a
negative
electrode
material,
remain
underexplored.
This
study
introduces
direct
and
efficient
approach
HC
from
production
scrap
EOL
cells
using
“ice‐stripping”
followed
by
low‐temperature
binder
negation
at
300
°C
under
nitrogen.
The
effects
of
temperature
on
structural
integrity
electrochemical
performance
are
comprehensively
characterized
XRD,
Wide‐Angle
X‐ray
Scattering
(WAXS),
XPS.
Heating
above
400
induces
irreversible
damage
to
HC's
graphene
layers
modifies
the
surfaces,
resulting
in
poor
performance.
However,
reclaimed
retains
near‐pristine
performance,
with
capacities
243
mAh
g⁻¹
(scrap)
228
after
50
cycles.
Full‐cell
configurations
demonstrates
robust
cycling
stability,
86%
89%
capacity
retention
200
cycles
derived
cells,
respectively.
work
highlights
potential
lower‐temperature,
enable
circular
economy
SIBs.
findings
set
benchmark
developing
methods
other
SIB
components.
Industrial & Engineering Chemistry Research,
Год журнала:
2024,
Номер
63(32), С. 13945 - 13965
Опубликована: Авг. 1, 2024
In
the
past
decade,
traditional
fuel
vehicles
have
gradually
been
replaced
by
electric
(EVs)
to
help
reduce
consumption
of
fossil
fuels
and
emissions
greenhouse
gases,
lithium
iron
phosphate
(LFP)
batteries
stand
as
one
promising
power
such
EVs,
because
their
cost-effectiveness
high
energy
density.
However,
with
increasing
number
EVs
each
year
end-of-life
LFP
batteries,
proper
recycling
spent
(SLFP)
has
become
an
unavoidable
challenge.
As
such,
development
a
green,
efficient,
low-cost
method
recycle
SLFP
is
crucial
importance,
which
will
benefit
industries
for
manufacturing
EVs.
To
this
end,
we
provide
review
focus
on
understanding
current
summarizing
research
status
technological
challenges
existing
in
batteries.
Specifically,
detailed
elucidations
regarding
environmental
risks
common
techniques
deployed
separating
cathode
materials,
state-of-the-art
methods
used
materials.
Additionally,
after
comprehensive
comparison
methodologies
perspectives
optimizing
deployments
toward
industry-scale
processing
are
provided.
Minerals,
Год журнала:
2025,
Номер
15(6), С. 560 - 560
Опубликована: Май 24, 2025
The
electrode
materials
from
spent
lithium-ion
batteries
consist
of
graphite
and
lithium
cobalt
oxides
(LCO),
which
cannot
be
efficiently
separated
by
the
conventional
flotation
technique
due
to
fine
size
distributions
LCO.
In
this
work,
nanobubbles
were
introduced
system
materials.
Nanobubbles
produced
with
method
temperature
difference.
Different
degrees
gas
oversaturation
in
water/slurry
achieved
raising
cold
water
(stored
at
4
°C
for
least
72
h)
target
values
20
°C,
25
30
°C.
It
was
found
that
height
lateral
distance
increased
degree
water.
addition,
larger
agglomerations
observed
form
presence
nanobubbles.
D50
(chord
length)
8
μm,
11
21
respectively,
compared
natural
More
adhered
a
captive
bubble
aid
than
case
no
nanobubbles,
indicated
wrapping
angles
(agglomerations)
adhering
bubble.
Furthermore,
maximum
adhesion
force
between
substrate
increases
220,
270,
300
μN
as
20,
25,
respectively.
frost
on
surface
resulting
through
bridging
effect
are
thought
responsible
improved
performance
present
results
indicate
minerals
can
regulated
regulating
slurry.