Nano-Micro Letters,
Год журнала:
2024,
Номер
17(1)
Опубликована: Ноя. 27, 2024
Abstract
Efficient
and
stable
photocathodes
with
versatility
are
of
significance
in
photoassisted
lithium-ion
batteries
(PLIBs),
while
there
is
always
a
request
on
fast
carrier
transport
electrochemical
active
photocathodes.
Present
work
proposes
general
approach
creating
bulk
heterojunction
to
boost
the
mobility
by
simply
laser
assisted
embedding
plasmonic
nanocrystals.
When
employed
PLIBs,
it
was
found
effective
for
synchronously
enhanced
photocharge
separation
light
charging
process.
Additionally,
experimental
photon
spectroscopy,
finite
difference
time
domain
method
simulation
theoretical
analyses
demonstrate
that
improved
dynamics
driven
plasmonic-induced
hot
electron
injection
from
metal
TiO
2
,
as
well
conductivity
matrix
due
formation
oxygen
vacancies
after
Schottky
contact.
Benefiting
these
merits,
several
benchmark
values
performance
-based
photocathode
applied
PLIBs
set,
including
capacity
276
mAh
g
−1
at
0.2
A
under
illumination,
photoconversion
efficiency
1.276%
3
less
Columbic
loss
even
through
200
cycles.
These
results
exemplify
potential
strategy
developing
highly
efficient
energy
storage
systems.
Advanced Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Июль 15, 2024
Abstract
Facing
the
resource
and
environmental
pressures
brought
by
retiring
wave
of
lithium‐ion
batteries
(LIBs),
direct
recycling
methods
are
considered
to
be
next
generation's
solution.
However,
contradiction
between
limited
battery
life
demand
for
rapidly
iterating
technology
forces
recovery
paradigm
shift
toward
“direct
upcycling.”
Herein,
a
closed‐loop
upcycling
strategy
that
converts
waste
current
collector
debris
into
dopants
is
proposed,
highly
inclusive
eutectic
molten
salt
system
utilized
repair
structural
defects
in
degraded
polycrystalline
LiNi
0.83
Co
0.12
Mn
0.05
O
2
cathodes
while
achieving
single‐crystallization
transformation
introducing
Al/Cu
dual‐doping.
Upcycled
materials
can
effectively
overcome
two
key
challenges
at
high
voltages:
strain
accumulation
lattice
oxygen
evolution.
It
exhibits
comprehensive
electrochemical
performance
far
superior
commercial
4.6
V,
especially
its
fast
charging
capability
15
C,
an
impressive
91.1%
capacity
retention
after
200
cycles
1.2
Ah
pouch
cell.
Importantly,
this
approach
demonstrates
broad
applicability
various
spent
layered
cathodes,
particularly
showcasing
value
mixed
cathodes.
This
work
bridges
gap
management
material
enhancement,
offering
sustainable
path
LIBs
production
next‐generation
high‐voltage
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 7, 2025
Abstract
Designing
crystal
structures
that
enable
fast
Li‐ion
transport
is
essential
for
achieving
high
performance
in
oxide
electrodes
low‐temperature
lithium‐ion
batteries
(LT‐LIBs),
especially
micron‐scale
particles.
The
introduction
of
point
defects
considered
to
be
effective
accelerating
local
at
room
temperature,
but
due
the
discontinuity
defects,
enhancement
low
temperatures
remains
verified.
Besides,
understanding
defect
impact
quite
limited.
In
this
study,
a
vanadium
pentoxide
(V
2
O
5
)
cathode
with
abundant
oxygen
vacancies
bulk
phase
successfully
synthesized.
Such
structure
tends
form
continuous
and
channels,
facilitating
deep
lithiation
ultralow
exceptional
rate
capability
impressive
capacitance
retention
(74%
−40
°C
54%
−50
°C).
Remarkably,
an
empirical
relationship
between
storage
oxides
uncovered.
Specifically,
degree
exhibits
two
distinct
trends
depending
on
temperature:
linear
increase
response
vacancy
concentration
above
°C,
exponential
below
threshold.
insights
gained
here
highlight
crucial
role
concentrations
temperatures,
providing
direction
tackling
critical
challenges
battery
technologies.
Industrial & Engineering Chemistry Research,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 15, 2025
The
capture
of
CO2
with
chemical
looping
combustion
(CLC)
offers
a
novel
approach
to
significantly
reduce
carbon
emissions
while
simultaneously
utilizing
captured
as
valuable
resource
by
leveraging
its
inherent
separation
capability.
in
CLC
technology
achieves
low-cost
through
the
utilization
highly
efficient
oxygen
carriers
(OC),
enabling
coupling
subsequent
hydrogenation
reactions
for
high-value-added
production.
This
review
comprehensively
summarizes
principle
technology,
current
status
OC
research,
and
potential
synthesis,
providing
theoretical
insights
into
feasibility
activating
within
practical
industrial
processes.
stable
brought
about
excellent
properties
higher
application
value
long
term
operation.
careful
selection
rational
design
vacancies
are
keys
enable
this
technology;
however,
further
research
is
needed
develop
optimize
efficiency
product
yields
elucidating
underlying
reaction
mechanisms.
