Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 20, 2024
Abstract
Among
optimization
strategies
for
solving
the
poor
ion
transport
ability
and
electrolyte/electrode
interface
compatibility
problems
of
lithium
(Li)‐based
batteries,
halogen
elements,
such
as
fluorine
(F)
iodine
(I),
have
gradually
occupied
an
important
position
because
their
superb
electronegativity,
oxidizability,
ionic
radius,
other
properties.
The
study
commences
by
outlining
shared
mechanism
which
F
I
enhance
solid‐state
metal
batteries'
electrochemical
performance.
In
particular,
can
considerably
improve
capacity
through
chemical
means
intermolecular
interactions
halogenation
reactions.
Furthermore,
utilization
significantly
enhances
stability
via
physical
strategies,
encompassing
doping
techniques,
application
surface
coatings,
fabrication
synthetic
intermediate
layers.
Subsequently,
characteristics
used
in
Li‐based
batteries
are
elaborated
detail,
focusing
on
fact
that
provide
additional
energy
density
anode
material
but
different
mechanisms.
Additionally,
activate
dead
at
negative
electrode,
act
a
new
carrier.
Finally,
rational
concept
synergistic
effect
is
proposed
feasibility
F–I
bihalide
solid
electrolytes
explored.
RSC Advances,
Journal Year:
2025,
Volume and Issue:
15(8), P. 5720 - 5727
Published: Jan. 1, 2025
Layered
transition
metal
oxides
for
sodium-ion
batteries
are
regarded
as
the
most
promising
cathode
materials
commercialization
owing
to
their
high
theoretical
specific
capacity,
rate
performance,
and
low
cost.
However,
drawbacks,
such
unfavorable
phase
transitions,
Na+/vacancy
disorder,
slow
dynamics,
seriously
hinder
further
practical
applications.
In
this
work,
we
prepared
a
P2-Na0.67Ni0.1Co0.1Mn0.8O2
with
heteroatom-substitution
doped
at
alkali
position.
The
was
suppressed
certain
extent,
order
of
optimized.
initial
discharge-specific
capacity
[Na0.57Li0.1]Ni0.1Co0.1Mn0.8O2
0.1C
(1C
=
150
mA
h
g-1)
151.3
g-1.
Doping
Li
enhanced
stability
layered
structure,
resulting
in
an
improvement
cycling
retention
reached
87.9%
after
100
cycles.
addition,
material
had
stable
structure
excellent
Na+
diffusion
coefficient
current
density
10C.
It
also
exhibited
88.2
g-1
Na
half-cell
system.
Kinetic
analysis
showed
that
increase
due
disorder
rise
interlayer
spacing.
Langmuir,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 25, 2025
NaNi1/3Fe1/3Mn1/3O2
(NFM111)
is
widely
used
because
of
its
high
theoretical
specific
capacity
and
excellent
environmental
adaptability.
In
our
previous
study,
NFM111
was
synthesized
by
solid-phase
ball
milling
comprehensively
evaluated.
It
found
that
has
NiO
in
the
bulk
phase,
which
may
lead
to
instability
structure
affect
properties
material.
To
solve
this
problem,
we
prepared
spherical
coprecipitation
prilling
work.
The
morphology
obtained,
content
peaks
reduced.
At
same
time,
tap
density
particles
rate
performance
material
are
effectively
improved.
work,
advantages
disadvantages
two
methods
for
preparing
materials
analyzed
comparing
their
properties.
provides
some
reference
subsequent
production
research
NFM111.
