Journal of Materials Chemistry A,
Journal Year:
2023,
Volume and Issue:
11(6), P. 3091 - 3104
Published: Jan. 1, 2023
A
comprehensive
evaluation
of
a
Mn–Fe-based
Prussian
Blue
Analogue
suited
as
positive
electrode
material
for
K-ion
batteries
is
made
by
complementary
ex
situ
and
operando
characterization
techniques
–
showing
fundamental
promises
limitations.
Small,
Journal Year:
2023,
Volume and Issue:
19(28)
Published: April 4, 2023
Abstract
Prussian
blue
analogs
(PBAs)
are
promising
cathode
materials
for
potassium‐ion
batteries
(KIBs)
owing
to
their
large
open
framework
structure.
As
the
K
+
migration
rate
and
storage
sites
rely
highly
on
periodic
lattice
arrangement,
it
is
rather
important
guarantee
high
crystallinity
of
PBAs.
Herein,
crystalline
2
Fe[Fe(CN)
6
]
(KFeHCF‐E)
synthesized
by
coprecipitation,
adopting
ethylenediaminetetraacetic
acid
dipotassium
salt
as
a
chelating
agent.
result,
an
excellent
capability
ultra‐long
lifespan
(5000
cycles
at
100
mA
g
−1
with
61.3%
capacity
maintenance)
achieved
when
tested
in
KIBs.
The
highest
10
−9
cm
s
bulk
phase
determined
galvanostatic
intermittent
titration
technique.
Remarkably,
robust
structure
reversible
solid‐phase
mechanism
KFeHCF‐E
proved
situ
XRD.
This
work
offers
simple
optimization
method
developing
high‐performance
PBAs
advanced
Carbon Neutralization,
Journal Year:
2023,
Volume and Issue:
2(5), P. 551 - 573
Published: Aug. 27, 2023
Abstract
In
the
post‐lithium‐ion
battery
era,
calcium‐ion
batteries
(CIBs)
have
aroused
extensive
attention
because
of
their
strong
cost
competitiveness,
low
standard
redox
potentials,
and
high
safety.
However,
related
research
is
progressing
slowly
due
to
constraints
development
electrode
materials.
The
large
ionic
radius
Ca
2+
especially
increases
challenge
design
cathode
materials
for
reversible
uptake/removal.
Despite
inspiring
achievements,
various
challenges
still
need
be
further
resolved.
Here,
this
review
systematically
summarizes
recent
advances
in
CIB
materials,
including
Prussian
blue
its
analogues,
metal
oxides,
chalcogenides,
polyanionic
compounds,
organic
We
first
provide
a
brief
introduction
CIBs
compare
advantages
with
other
technologies.
Then,
preparation
methods
are
introduced,
breakthrough
investigations
highlighted.
Finally,
some
possible
directions
discussed
promote
emerging
technology.
Journal of Materials Chemistry A,
Journal Year:
2023,
Volume and Issue:
11(6), P. 3091 - 3104
Published: Jan. 1, 2023
A
comprehensive
evaluation
of
a
Mn–Fe-based
Prussian
Blue
Analogue
suited
as
positive
electrode
material
for
K-ion
batteries
is
made
by
complementary
ex
situ
and
operando
characterization
techniques
–
showing
fundamental
promises
limitations.