Abstract
The
rapid
proliferation
of
power
sources
equipped
with
lithium‐ion
batteries
poses
significant
challenges
in
terms
post‐scrap
recycling
and
environmental
impacts,
necessitating
urgent
attention
to
the
development
sustainable
solutions.
cathode
direct
regeneration
technologies
present
an
optimal
solution
for
disposal
degraded
cathodes,
aiming
non‐destructively
re‐lithiate
straightforwardly
reuse
materials
reasonable
profits
excellent
efficiency.
Herein,
a
potential‐regulated
strategy
is
proposed
LiFePO
4
utilizing
low‐cost
Na
2
SO
3
as
reductant
lower
redox
potential
alkaline
systems.
aqueous
re‐lithiation
approach,
viable
alternative,
not
only
enables
while
ignoring
variation
Li
loss
among
different
feedstocks
but
also
utilizes
sintering
process
restore
microstructure
desirable
stoichiometry
crystallinity.
regenerated
exhibits
enhanced
electrochemical
performance
capacity
144
mA
h
g
−1
at
1
C
high
retention
98%
after
500
cycles
5
C.
Furthermore,
this
work
offers
considerable
prospects
industrial
implementation
directly
recycled
from
batteries,
resulting
improved
economic
benefits
compared
conventional
leaching
methods.
Abstract
To
mitigate
the
environmental
impact
of
improper
disposal
spent
LiFePO
4
batteries
and
reduce
resource
waste,
development
recycling
technologies
is
paramount
importance.
Meanwhile,
olivine‐structured
NaFePO
in
sodium‐ion
has
received
great
attention,
due
to
its
high
theoretical
specific
capacity
154
mAh
g
−1
excellent
stability.
However,
olivine
only
can
be
synthesized
from
.
Accordingly,
this
proposal,
developing
continuous
flow
electrochemical
solid‐liquid
reactor‐based
metal
ion
insertion
technology
utilize
FePO
,
recycled
synthesize
Additionally,
by
employing
I
−
as
reducing
agent,
successfully
with
a
discharge‐specific
134
at
0.1C
remarkable
retention
rate
86.5%
after
100
cycles
0.2C.
And
reasons
for
sodium
deficiency
NFP
are
elucidated
through
first‐principles
calculations.
Furthermore,
kinetics
solid‐solution
reaction
2
(Na
2/3+β
PO
→
Na
1‐α
)
mechanism
improve
cycling
sensitive
temperature.
Utilizing
minimal
amount
agent
reactor,
synthesis
achieved.
This
innovative
approach
offers
new,
cost‐effective,
environmentally
friendly
strategy
preparing
Langmuir,
Год журнала:
2024,
Номер
40(11), С. 5557 - 5570
Опубликована: Март 11, 2024
Contact
electrification
(CE)
is
a
common
physical
process
by
which
triboelectric
charges
are
generated
through
the
mutual
contact
between
two
objects.
Despite
ongoing
debates
on
CE's
mechanism,
recent
advancements
in
technology
have
elucidated
primary
role
of
electron
transfer
most
CE
processes.
This
discovery
leads
to
spawning
an
emerging
field,
known
as
contact-electro-catalysis
(CEC),
utilizes
phenomenon
during
initiate
CEC.
In
this
work,
we
provide
first
comprehensive
review
progress
solid–liquid
interface-mediated
CEC
process,
including
its
working
principles,
relationship
with
surface
science,
breakthroughs
applications,
and
future
challenges.
We
aim
fundamental
guidance
for
researchers
understand
reaction
mechanism
propose
potential
pathways
enhance
efficiency
from
interfacial
science
perspective.
Later,
application
scenarios
using
novel
techniques
summarized,
wastewater
treatment,
efficient
generation
hydrogen
peroxide
(H2O2),
lithium-ion
battery
recycling,
CO2
reduction.
general,
has
opened
new
avenue
catalysis,
effectively
expanding
range
catalyst
options
holding
promise
solution
variety
complex
catalytic
challenges
future.
Abstract
The
rapid
proliferation
of
power
sources
equipped
with
lithium‐ion
batteries
poses
significant
challenges
in
terms
post‐scrap
recycling
and
environmental
impacts,
necessitating
urgent
attention
to
the
development
sustainable
solutions.
cathode
direct
regeneration
technologies
present
an
optimal
solution
for
disposal
degraded
cathodes,
aiming
non‐destructively
re‐lithiate
straightforwardly
reuse
materials
reasonable
profits
excellent
efficiency.
Herein,
a
potential‐regulated
strategy
is
proposed
LiFePO
4
utilizing
low‐cost
Na
2
SO
3
as
reductant
lower
redox
potential
alkaline
systems.
aqueous
re‐lithiation
approach,
viable
alternative,
not
only
enables
while
ignoring
variation
Li
loss
among
different
feedstocks
but
also
utilizes
sintering
process
restore
microstructure
desirable
stoichiometry
crystallinity.
regenerated
exhibits
enhanced
electrochemical
performance
capacity
144
mA
h
g
−1
at
1
C
high
retention
98%
after
500
cycles
5
C.
Furthermore,
this
work
offers
considerable
prospects
industrial
implementation
directly
recycled
from
batteries,
resulting
improved
economic
benefits
compared
conventional
leaching
methods.
