Inorganic Chemistry,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 19, 2024
The
preparation
of
high-performance
electrode
materials
from
metallurgical
solid
waste
is
an
effective
strategy
to
address
current
energy
and
environmental
challenges.
This
study
utilizes
a
mixed
acid
leaching
ultrasound-assisted
precipitation
process
extract
valuable
metallic
iron
titanium-extraction
tailings
(TET)
produce
high-purity
nano-FePO
Energies,
Год журнала:
2025,
Номер
18(4), С. 930 - 930
Опубликована: Фев. 14, 2025
This
study
investigates
the
effects
of
different
titanium
doping
concentrations
on
properties
iron
phosphate
precursors
and
final
lithium
(LiFePO4)
materials,
aiming
to
optimize
structural
electrochemical
performance
LiFePO4
by
introducing
during
precursor
synthesis
stage.
Titanium
was
introduced
using
titanate
as
a
source
prepare
with
varying
concentrations.
The
materials
were
characterized
X-ray
diffraction
(XRD),
scanning
electron
microscopy
(SEM),
other
techniques.
results
showed
that
incorporation
significantly
influenced
Fe
P
content
in
precursors,
decrease
both
levels
concentration
increased.
Moreover,
increased,
particle
size
decreased,
distribution
became
more
uniform.
Additionally,
improved
tap
density
significant
increase
observed
when
reached
4000
ppm.
Electrochemical
measurements
revealed
had
certain
impact
discharge
capacity
LiFePO4,
gradually
decreasing
Overall,
this
effectively
physical
stage,
providing
theoretical
foundation
for
further
optimization
titanium-doped
LiFePO4.
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Апрель 29, 2025
Here,
the
effects
of
Mg2+,
Mn2+,
and
SO42-
impurities
in
FePO4
raw
materials
on
properties
LFP
were
studied
by
converting
into
doping
elements.
The
results
indicate
that
due
to
differences
ionic
radius
methods,
these
three
have
varying
impacts
performance
LFP.
0.2-0.6%
Mg2+
can
significantly
improve
high-rate
capacity
cycle
materials.
At
5
C,
discharge
specific
reaches
122.39
mAh/g,
respectively,
retention
rate
is
94.7%
after
500
cycles.
By
contrast,
Mn2+
leads
a
significant
decline
decomposed
reduced
during
synthesis,
which
slightly
reduces
electrochemical
Therefore,
it
not
case
higher
purity
yields
better
results.
An
appropriate
amount
should
be
retained,
controlled
at
low
level,
minimized.
Different
treated
differently
reduce
preparation
cost
material.