Energy & Environmental Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
An
overview
of
high-entropy
strategies
for
batteries
is
provided,
emphasizing
their
unique
structural/compositional
attributes
and
positive
effects
on
stability
performance,
alongside
a
discussion
key
challenges
future
research
directions.
ACS Applied Materials & Interfaces,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 29, 2025
P2-type
Na0.5Mn0.95Ni0.05O2
as
the
cathode
for
sodium-ion
batteries,
has
a
relatively
high
theoretical
specific
capacity,
but
its
unstable
crystal
structure
and
undesirable
phase
transitions
lead
to
rapid
capacity
decay.
In
this
work,
Mg-B-O
coated
microspheres
have
been
synthesized
via
liquid-phase
method
based
on
solvothermal
Na0.5Mn0.95Ni0.05O2.
The
coating
layer
significantly
improves
electrochemical
performance,
including
rate
capability,
cycle
stability.
Within
voltage
window
of
2.0-4.0
V,
could
exhibit
an
initial
93.2
mAh
g-1
at
current
density
500
mA
g-1,
maintains
74.6
after
cycles,
with
retention
80.0%.
effectively
inhibits
formation
Na2CO3
surface,
enhancing
air
stability,
reducing
Jahn-Teller
effect
induced
by
Mn3+,
well
ensuring
fast
Na+
diffusion
kinetics.
This
work
provides
new
strategy
designing
layered
batteries
both
cycling
Abstract
Sulfide‐based
all‐solid‐state
batteries
(ASSBs)
have
ushered
in
a
new
era
of
energy
storage
technology,
offering
the
tantalizing
prospect
unprecedented
density
and
safety.
However,
poor
electrode‐electrolyte
interface
between
Li
anodes
sulfide
solid
electrolytes
has
hindered
its
practical
application.
In
this
review,
primary
focus
lies
current
fundamental
understanding,
challenges,
optimization
strategies
regarding
chemistries
anode.
First,
an
in‐depth
discussion
is
conducted
provides
detailed
summary
interfacial
challenges
that
exist
anode
electrolytes.
Among
these
compatibility
stability
stand
out
as
two
crucial
issues.
Subsequently,
effective
approaches
are
systematically
explored
to
surmount
These
encompass
component
structural
design
bulk
anode,
doping
coating
electrolytes,
Finally,
insights
present
into
limitations
studies,
perspectives,
recommendations
for
further
development
sulfide‐based
solid‐state
batteries,
aiming
offer
comprehensive
enlightening
overview
engineering,
which
great
significance
integration
applicable
metal
(ASSLMBs).
Abstract
NbO‐based
anodes
for
Li‐ion
batteries,
such
as
Nb
2
O
5
,
are
promising
due
to
their
minimal
volume
change
and
relatively
high
operation
voltage,
leading
extended
cycling
stability
reduced
risk
of
Li‐dendrite
formation.
However,
limited
reversible
capacity
hinders
further
development.
Herein,
FeNbO
4
porous
nanofibers
(PNFs)
fabricated.
These
consist
nanoparticles
numerous
voids
left
electrolyte
infiltration.
When
cycled
within
an
optimized
voltage
window
(0.50–3.00
V),
the
PNF
electrode
exhibits
hysteresis
improved
energy
efficiency
compared
conventional
wide‐range
(0.01–3.00
V).
Moreover,
it
a
lower
activation
substantially
higher
diffusion
coefficient,
resulting
in
twice
that
anode.
Ex
situ
characterizations
on
intermediates
suggest
LiFeO
x
LiNbO
composites
form
during
first
lithiation
process
via
conversion
reaction,
after
which
insertion‐extraction
reaction
dominates
storage
behavior.
The
enhanced
is
attributed
redox
activity
Fe
3+
/Fe
2+
5+
/Nb
4+
while
operating
voltages
contribute
safety
PNFs
anode
material.
This
work
provides
refined
understanding
offers
fresh
perspectives
design
with
improved‐capacity.
