Advanced Energy Materials,
Год журнала:
2024,
Номер
14(26)
Опубликована: Май 25, 2024
Abstract
Degraded
LiCoO
2
cathode
from
retired
Li‐ion
batteries
is
urgently
required
to
be
recycled
in
a
greener
way
for
economic
and
environmental
considerations.
The
coarse
metallurgy
technologies
Li/Co
extraction
with
massive
CO
emission
energy
consumption
cannot
satisfy
the
requirements
of
carbon
neutralization.
Herein,
it
proposed
that
direct
regeneration
degraded
could
realized
via
9‐fluorenone‐mediated
Li
supplementation
follow‐up
structural
restoration.
9‐fluorenone‐lithium
reagent
elaborately
selected
compensate
missing
+
into
lattice
targeted
stoichiometry
owing
its
compatible
redox
potential
1.95
V
versus
/Li,
which
located
just
between
reversible
intercalation
(3.8
V)
irreversible
conversion
(1.2
potentials
electrode.
Then,
thermal
energy‐driven
structure
reorganization
enables
atoms
occupy
right
sites,
accomplishing
desirable
healing
within
short
annealing
time
4
h.
regenerated
exhibits
comparable
Li‐storage
capability
commercial
,
benefiting
non‐destructive
technology.
In
addition,
route
regarded
as
environmentally
(0.13
kg
−1
cell)
economically
(10.07
$
superior
conventional
recycling
routes
based
on
life‐cycle
analysis.
precise
surgery
spent
provides
promising
solution
forthcoming
retirement
rush
batteries.
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 23, 2025
Abstract
Lithiation
reactions
driven
by
chemical
potential
offer
a
promising
avenue
for
directly
regenerating
degraded
lithium
iron
phosphate
(LFP).
However,
the
choice
of
solution
system
significantly
influences
supplementation
where
improper
selection
may
result
in
poor
recovery
or
extremely
slow
kinetics.
Herein,
it
is
identified
that
most
critical
factor
affecting
repair
effectiveness
redox
anions
solution,
which
determines
whether
spent
LFP
(SLFP)
can
undergo
spontaneous
lithiation
under
ambient
conditions.
Then,
machine
learning
(ML)
used
prediction
and
screening
huge
systems,
finally
general
strategy
proposed:
creating
low
incorporates
with
either
moderate
at
high
concentrations.
As
demonstration,
regenerated
ascorbic
acid
LiOH
systems
exhibits
discharge
capacity
144
mAh
g
−1
1
C,
retaining
96%
its
after
500
cycles
5
C.
This
work
establishes
an
important
criteria
designing
to
restore
LFP,
marking
significant
advancement
direct
regeneration
cathode
materials
from
lithium‐ion
batteries
(LIBs).
Advanced Energy Materials,
Год журнала:
2023,
Номер
13(44)
Опубликована: Окт. 17, 2023
Abstract
Currently,
the
concept
of
direct
regeneration
has
garnered
considerable
attention
from
public
due
to
its
minimal
environmental
impact,
high
economic
value,
and
stable
performance
recycled
materials.
In
this
study,
an
organic
lithium
salt‐assisted
eutectic
salts
(OAER)
is
proposed
for
replenishing
in
extremely
low
state
health
Ni‐rich
cathode
(Low
SOH
NCM).
The
OAER
method
capitalizes
on
favorable
inherent
properties
salts;
moreover,
reactions
salt
create
oxidation
environment
vacancies.
By
employing
OAER,
Low
NCM
are
able
be
recovered,
which
originally
a
capacity
only
46.8
mAh
g
−1
,
155.5
with
retention
95.6%
after
100
cycles.
Notably,
substantially
higher
than
that
achieved
through
conventional
purely
methods
even
slightly
surpasses
current
commercial
material.
Considering
benefits
approach,
it
demonstrates
potential
exhibits
competitiveness
industrial
applications.
Advanced Materials,
Год журнала:
2023,
Номер
36(11)
Опубликована: Дек. 13, 2023
The
inferior
cycling
stabilities
or
low
capacities
of
2D
Sb
Bi
limit
their
applications
in
high-capacity
and
long-stability
potassium/lithium-ion
batteries
(PIBs/LIBs).
Therefore,
integrating
the
synergy
high-stability
to
fabricate
binary
alloys
is
an
intriguing
challenging
endeavor.
Herein,
a
series
novel
SbBi
with
different
atomic
ratios
are
fabricated
using
simple
one-step
co-replacement
method.
Among
these
alloys,
2D-Sb
Energy & Environmental Science,
Год журнала:
2024,
Номер
17(20), С. 7749 - 7761
Опубликована: Янв. 1, 2024
We
introduce
the
atomistic
observation
and
high-temperature
shock
to
trigger
Li–Fe
reordering
in
LiFePO
4
,
which
offers
a
precise
efficient
pathway
for
direct
recycling
regeneration,
along
with
significant
techno-economic
benefits.
