Advanced Functional Materials,
Год журнала:
2022,
Номер
33(8)
Опубликована: Дек. 8, 2022
Abstract
High‐voltage
LiCoO
2
(LCO)
is
pressingly
required
for
the
portable
electronics.
But
O→Co
charge
transfer
and
oxygen
redox
at
high
delithiation
induce
issues
of
irreversible
Co
reduction,
release,
unfavored
phase
transformation.
Herein,
it
proposed
to
tune
via
regulating
Li/Co
anti‐site
defect
with
Mg
2+
(PO
4
)
3−
co‐doping
achieve
a
stable
high‐voltage
cathode.
The
appropriately
regulated
enhances
activity
Co‐ions,
inhibits
irreversibility
coupled
reduction.
increase
formation
energy
vacancies
in
modified
cathode
deep
escape.
Moreover,
doping
also
stabilizes
oxygen‐packed
framework
due
its
strong
bond
transition
metal.
These
functions
enhance
structural
stability
reversible
Co/O
ability.
improved
delivers
capacity
long‐cycle
retention
on
both
4.5
4.6
V.
This
study
provides
some
insights
into
adjusting
coupling
effect
enhancing
reversibility
by
regulation.
Advanced Functional Materials,
Год журнала:
2022,
Номер
32(52)
Опубликована: Окт. 10, 2022
Abstract
Garnet‐type
electrolytes
show
great
potential
in
application
of
solid‐state
lithium
batteries
due
to
their
high
ionic
conductivity
and
wide
electrochemical
window.
However,
the
formation
surface
Li
2
CO
3
derived
from
air
exposure
triggers
uneven
contact
with
Li‐metal,
leading
undesirable
dendrite
growth
performance
deterioration.
Herein,
PO
4
layer
replacing
contaminant
is
built
on
garnet
by
taking
molten
NH
H
salt
driven
conversion
reaction.
The
high‐flowability
contributes
conformal
,
realizing
air‐stable
preventing
re‐attack
O/CO
air.
Besides,
work
adhesion
for
Li‐metal
along
transformation
P/Li
O
when
contacting
enables
a
lithiophilic
interlayer,
seamless
Li/garnet
ultralow
interfacial
resistance
13
Ω
cm
.
Such
ion‐conducting
but
electron‐insulating
regulates
uniform
distribution
Li‐flux,
enabling
large
critical
current
density
1.2
mA
−2
Furthermore,
solid
LiCoO
/Li
cell
modified
delivers
discharge
capacity
130
mAh
g
−1
at
30
°C,
accompanied
retention
81%
after
150
cycles.
This
study
proposes
promising
solution
improvement
stability
compatibility
using
facile
treatment.
Advanced Materials,
Год журнала:
2023,
Номер
36(6)
Опубликована: Окт. 23, 2023
Abstract
The
rapid
development
of
modern
consumer
electronics
is
placing
higher
demands
on
the
lithium
cobalt
oxide
(LiCoO
2
;
LCO)
cathode
that
powers
them.
Increasing
operating
voltage
exclusively
effective
in
boosting
LCO
capacity
and
energy
density
but
inhibited
by
innate
high‐voltage
instability
structure
serves
as
foundation
determinant
its
electrochemical
behavior
lithium‐ion
batteries.
This
has
stimulated
extensive
research
structural
stabilization.
Here,
it
focused
fundamental
understanding
from
long‐term
studies.
Multi‐scale
structures
concerning
bulk
surface
various
issues
along
with
their
origins
corresponding
stabilization
strategies
specific
mechanisms
are
uncovered
elucidated
at
length,
which
will
certainly
deepen
advance
knowledge
further
inherent
relationship
performance.
Based
these
understandings,
remaining
questions
opportunities
for
future
also
emphasized.
Frontiers in Microbiology,
Год журнала:
2023,
Номер
14
Опубликована: Май 31, 2023
Spent
lithium-ion
batteries
(LIBs)
are
increasingly
generated
due
to
their
widespread
use
for
various
energy-related
applications.
LIBs
contain
several
valuable
metals
including
cobalt
(Co)
and
lithium
(Li)
whose
supply
cannot
be
sustained
in
the
long-term
view
of
increased
demand.
To
avoid
environmental
pollution
recover
metals,
recycling
spent
is
widely
explored
using
different
methods.
Bioleaching
(biohydrometallurgy),
an
environmentally
benign
process,
receiving
attention
recent
years
since
it
utilizes
suitable
microorganisms
selective
leaching
Co
Li
from
cost-effective.
A
comprehensive
critical
analysis
studies
on
performance
microbial
agents
extraction
solid
matrix
would
help
development
novel
practical
strategies
effective
precious
LIBs.
Specifically,
this
review
focuses
current
advancements
application
namely
bacteria
(e.g.,
Advanced Functional Materials,
Год журнала:
2023,
Номер
34(10)
Опубликована: Ноя. 29, 2023
Abstract
Lithium
batteries
have
become
one
of
the
best
choices
for
energy
storage
due
to
their
long
lifespan,
high
operating
voltage‐platform
and
density
without
any
memory
effect.
However,
ever‐increased
demands
high‐performance
lithium
indeed
place
a
stricter
request
electrodes
electrolytes
materials,
electrode‐electrolyte
interface.
Various
strategies
are
developed
enhance
overall
performances
current
batteries,
among
them,
artificial
modification
battery
components
is
regarded
as
most
effective.
systematic
summery
surrounding
surface
modifications
rare.
In
this
review,
structural
instability
bare
main
defects
unmodified
separator/solid
briefly
presented.
Then
diverse
advanced
surface‐engineering
both
cathode
anode
well
carefully
summarized.
More
importantly,
prospects
challenges
methods
constructing
pointed
out.
