Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 3, 2024
Abstract
Manganese
compounds
have
emerged
as
promising
cathode
materials
for
aqueous
zinc‐ion
batteries
(AZIBs).
But
their
broader
applications
are
impeded
by
such
cathodes'
poor
structure
stability
and
sluggish
ion
transportation.
Herein,
these
limitations
addressed
proposing
high‐valence
Mo
doping
regnant
LaMnO
3
perovskite
oxide
cathodes
to
develop
high‐performance
rate
stable
AZIBs.
The
optimized
doped
contributes
a
highest
specific
capacity
of
445
mAh
g
−1
at
the
current
density
0.5
A
,
which
maintains
206
2
accompanies
with
remarkable
retention
114%
beyond
1000
cycles
continuous
charge/discharge
process.
multivalent
is
revealed
boost
energy
storage
stabilize
electrode
via
various
ex
situ
characterization
theoretical
calculations.
Importantly,
incorporation
facilitates
acceleration
reaction
kinetics
sufficient
charge
transfer
H
+
Zn
2+
dual
carriers,
where
plays
dominant
role.
This
work
provides
new
perspective
on
developing
innovative
metal
Advanced Energy Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Июль 14, 2024
Abstract
Lithium‐ion
batteries
(LIBs)
have
emerged
as
vital
elements
of
energy
storage
systems
permeating
every
facet
modern
living,
particularly
in
portable
electronic
devices
and
electric
vehicles.
However,
with
the
sustained
economic
social
development,
new‐generation
LIBs
high
density,
wide
operating
temperature
range,
fast
charge,
safety
are
eagerly
expected,
while
conventional
ethylene
carbonate
(EC)‐based
electrolytes
fail
to
satisfy
corresponding
requirements.
Comparatively,
ether‐based
electrolyte
fascinating
properties
recently
been
revived
fields,
many
advanced
exciting
performances
under
developed.
This
review
provides
an
extensive
overview
latest
breakthroughs
concerning
applied
intercalation
cathodes.
To
systematically
outline
progression
electrolytes,
this
is
categorized
from
perspective
anodes
follows:
i)
graphite
anode‐based
LIBs;
ii)
silicon
iii)
lithium
metal
LIBs.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 9, 2024
Abstract
Polyolefin
separators,
such
as
polypropylene
(PP)
and
polyethylene
(PE)
are
the
commonly
used
separators
for
lithium
batteries,
which
have
good
mechanical
properties
chemical/electrochemical
stability,
but
their
high‐temperature
dimensional
stability
is
poor
Li
+
transference
number
(
t
)
low.
Recently,
much
attention
has
been
paid
to
developing
with
new
substrates,
so
far
there
no
separator
replace
polyolefin
large‐scale
application.
Therefore,
surface
modification
of
enhance
its
functionality
a
simple
effective
method.
Among
many
modified
layers,
porous
layer
can
store
electrolyte
provide
enough
space
ion
transport.
In
this
work,
hollow
mesoporous
silica
nanosphere
(mSiO
2
prepared
PP
multifunctional
coating
improve
electrochemical
performance
safety
separator.
The
experimental
theoretical
results
show
that
mSiO
not
only
wettability
separator,
also
promote
transport,
/PP
exhibits
high
ionic
conductivity
(2.35
mS
cm
−1
(0.63).
As
result,
Li//LiFePO
4
cells
using
exhibit
excellent
cycling
performance,
rate
safety.
