Abstract
The
application
of
lithium‐ion
batteries
challenges
environmental
sustainability
and
calls
for
efficient
recycling
toward
circular
economics.
Hydrometallurgical
recycling,
despite
being
commercialized,
still
faces
such
as
harsh
chemicals,
high
secondary
waste
generation,
low
efficiencies.
Intuitively,
higher
temperature
leads
to
exponentially
reaction
kinetics
(following
Arrhenius's
law),
yet
the
dissolution
is
limited
below
100
°C
while
heating
solution
means
more
energy
consumption.
This
study
presents
a
laser‐assisted
wet
leaching
(Laser‐WL)
method
that
enables
decoupled
particle/solution
temperatures,
where
cathode
particles
are
effectively
heated
by
laser
adsorption
(30
W)
accelerate
(7–10
fold)
remains
cool
saving.
Besides,
physical
ablation
helps
remove
robust
solid
electrolyte
interface
cracks
expose
active
materials,
shortening
diffusion
pathways
further
enhancing
kinetics.
Therefore,
Laser‐WL
can
achieve
an
extraction
rate
95.6%
in
15
min
(traditional
>3
h).
It
reduced
consumption
concentrated
HCl
87%,
water
27%.
applicable
various
materials
works
weak
acids,
thus
presenting
sustainable
economically
viable
metal
recycling.
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Июль 24, 2024
Abstract
Effective
recycling
of
end-of-life
Li-ion
batteries
(LIBs)
is
essential
due
to
continuous
accumulation
battery
waste
and
gradual
depletion
metal
resources.
The
present
closed-loop
solutions
include
destructive
conversion
compounds,
by
destroying
the
entire
three-dimensional
morphology
cathode
through
thermal
treatment
or
harsh
wet
extraction
methods,
direct
regeneration
lithium
replenishment.
Here,
we
report
a
solvent-
water-free
flash
Joule
heating
(FJH)
method
combined
with
magnetic
separation
restore
fresh
cathodes
from
cathodes,
followed
solid-state
relithiation.
process
called
recycling.
This
FJH
exhibits
merits
milliseconds
duration
high
recovery
yields
~98%.
After
FJH,
reveal
intact
core
structures
hierarchical
features,
implying
feasibility
their
reconstituting
into
new
cathodes.
Relithiated
are
further
used
in
LIBs,
show
good
electrochemical
performance,
comparable
commercial
counterparts.
Life-cycle-analysis
highlights
that
has
higher
environmental
economic
benefits
over
traditional
processes.
Journal of the American Chemical Society,
Год журнала:
2024,
Номер
146(23), С. 16010 - 16019
Опубликована: Май 28, 2024
Flash
Joule
heating
has
emerged
as
an
ultrafast,
scalable,
and
versatile
synthesis
method
for
nanomaterials,
such
graphene.
Here,
we
experimentally
theoretically
deconvolute
the
contributions
of
thermal
electrical
processes
to
graphene
by
flash
heating.
While
traditional
methods
involve
purely
chemical
or
driving
forces,
our
results
show
that
presence
charge
resulting
electric
field
in
a
precursor
catalyze
formation
Furthermore,
modulation
current
pulse
width
affords
ability
control
three-step
phase
transition
material
from
amorphous
carbon
turbostratic
finally
ordered
(AB
ABC-stacked)
graphite.
Finally,
density
functional
theory
simulations
reveal
charge-
current-induced
inside
facilitates
lowering
activation
energy
reaction.
These
demonstrate
passage
through
solid
sample
can
directly
drive
nanocrystal
nucleation
heating,
insight
may
inform
future
other
strategies.
Advanced Energy Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 17, 2024
Abstract
Solid‐state
batteries
(SSBs)
have
attracted
much
attention
for
high‐energy‐density
and
high‐safety
energy
storage
devices.
Solid
polymer
electrolytes
(SPEs)
emerged
as
a
critical
component
in
the
advancement
of
SSBs,
owing
to
compelling
advantages
strong
molecular
structure‐designability,
low
cost,
easy
manufacturing,
no
liquid
leakage.
However,
linear
SPEs
usually
room‐temperature
ionic
conductivity
due
crystallization,
melting
at
high
temperature.
Thus,
crosslinked
been
proposed
that
chemical
bonding
between
internal
molecule
chains
can
maintain
solid
state
expand
operational
temperature,
disrupt
regularity
segment,
diminish
crystalline
degree,
leading
an
enhancement
conductivity.
Furthermore,
integration
functional
groups
within
SPE
network
significantly
augment
electrochemical
performance
SPEs.
Herein,
according
structure,
are
categorized
into
four
types:
simple
network,
AB
polymers
(ABCP),
semi‐interpenetrating
(semi‐IPN),
interpenetrating
(IPN),
then
structure
features
disadvantages
commonly
used
these
types
reviewed.
In
addition,
with
self‐healing,
flame‐retardant,
degradable,
recyclability
introduced.
Finally,
challenges
prospects
summarized,
hoping
provide
guidance
design
future.
