Carbon Neutralization,
Journal Year:
2024,
Volume and Issue:
3(6), P. 1131 - 1139
Published: Sept. 18, 2024
Abstract
Searching
for
low‐cost,
high‐capacity,
high‐power,
high‐stability,
high‐tap‐density,
and
inherently
safe
materials
developing
cheap,
safe,
high‐performance
batteries
has
always
been
a
research
hotspot.
Herein,
an
low‐strain
KTiOPO
4
(KTOP)
submicron
single
crystals
with
uniform
thin
layer
carbon
coating
are
developed
using
ball‐mill
assisted
solid‐state
method.
Uniform
solid
electrolyte
interphase,
coating,
stable
structure
synergistically
help
compact
KTOP
achieve
exceptional
anodic
K‐ion
storage
performance.
The
carbon‐coated
obtained
under
the
carbonization
temperature
of
400°C
(KTOP‐C‐400)
can
deliver
potassium
ion
performance
253.3,
224.0,
175.5,
131.1
mA
h
g
−1
at
current
density
100,
200,
500,
1000
,
respectively,
in
5
M
bis(fluorosulfonyl)imide
(KFSI)
DIGLYME
electrolytes.
Even
after
being
cycled
cycles,
capacity
was
maintained
182.5
coulombic
efficiency
99.9%.
ACS Energy Letters,
Journal Year:
2025,
Volume and Issue:
unknown, P. 750 - 778
Published: Jan. 13, 2025
Fast-charging
technology,
which
reduces
charging
time
and
enhances
convenience,
is
attracting
attention.
Sodium-ion
batteries
(SIBs)
potassium-ion
(PIBs)
are
emerging
as
viable
alternatives
to
lithium-ion
(LIBs)
due
their
abundant
resources
low
cost.
However,
during
fast
discharging,
the
crystal
structures
of
cathode
materials
in
SIBs/PIBs
can
be
damaged,
negatively
impacting
performance,
lifespan,
capacity.
To
address
this,
there
a
need
explore
electrode
with
ultrahigh
rate
capabilities.
Prussian
Blue
its
analogues
(PB
PBAs)
have
shown
great
potential
for
both
SIBs
PIBs
unique
excellent
electrochemical
properties.
This
Review
examines
use
PBAs
PIBs,
focusing
on
fast-charging
(rate)
performance
commercialization
potential.
Through
systematic
analysis
discussion,
we
hope
provide
practical
guidance
developing
contributing
advancement
widespread
adoption
green
energy
technologies.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 22, 2025
Abstract
Potassium‐ion
batteries
(PIBs),
with
abundant
resources
and
low
cost,
are
considered
as
a
promising
alternative
to
commercial
lithium‐ion
for
low‐cost
large‐scale
applications.
Over
the
past
decade,
significant
academic
progresses
made
in
development
of
PIBs,
including
advancements
cathodes,
anodes,
electrolytes.
However,
most
improvements
achieved
under
laboratory
conditions
(e.g.,
K
metal‐based
half‐cells
mass
loading
active
materials),
performance
PIBs
full
cells
is
still
far
from
requirements
A
critical
insight
bridging
research
commercialization
urgently
needed
guide
future
this
field.
This
review
will
discuss
challenges
improvement
strategies
focusing
on
potential
practical
electrolytes,
well
their
cells.
It
aims
give
readers
clear
logical
understanding
PIBs.
The
application
analysis
also
discussed
provide
comprehensive
Finally,
perspectives
provided
Small Methods,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 11, 2024
Abstract
Metal
selenides
have
received
extensive
research
attention
as
anode
materials
for
batteries
due
to
their
high
theoretical
capacity.
However,
significant
volume
expansion
and
slow
ion
migration
rate
result
in
poor
cycling
stability
suboptimal
performance.
To
address
these
issues,
the
present
work
utilized
multivalent
iron
ions
construct
fast
pathways
similar
superionic
conductors
(Fe‐SSC)
introduced
corresponding
selenium
vacancies
enhance
its
Based
on
first‐principles
calculations
molecular
dynamics
simulations,
it
is
demonstrated
that
addition
of
presence
reduced
material's
function
adsorption
energy,
lowered
barriers,
enhances
Li
+
Na
.
In
Li‐ion
half
batteries,
this
composite
material
exhibites
reversible
capacity
1048.3
mAh
g
−1
at
0.1
A
after
100
cycles
483.6
5.0
1000
cycles.
Na‐ion
687.7
200
325.9
It
proven
based
Fe‐SSC
great
applications
both
batteries.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 2, 2024
Abstract
The
application
of
alloying‐typed
red
phosphorus
(red
P)
anode
in
potassium‐ion
batteries
(KIBs)
with
ultra‐high
theoretical
capacity
is
hindered
by
the
limited
and
fast
decay
due
to
poor
electronic
conductivity
huge
volume
change.
Herein,
a
facile
efficient
strategy
fluorine
(F)
doping
innovatively
developed
modulate
pore
structure
carbon
matrix
(F‐CNS)
encapsulate
P
enhanced
potassium
storage
capability.
Theoretical
calculations
reveal
that
F
induces
additional
defects
within
layer,
which
facilitates
4
molecules
embedding
into
F‐doping‐induced
micropores,
enhances
adsorption
ability
toward
K
atoms
molecules,
improves
electrochemical
kinetics
assisted
more
charge
transfer
obtained
from
electron
density
difference,
thus
enabling
robust
capability
for
such
unique
Red
P@F‐CNS
anode.
Accordingly,
demonstrates
outstanding
cycling
stability
(90%
retention
after
800
cycles
at
2A
g
−1
),
full
cell
(Red
P@F‐CNS//KFeHCF)
exhibits
exceptional
long‐term
performance
(129
mAh
2500
5
A
only
0.014%
per
cycle).
In
situ
characterizations
confirm
superior
structural
integrity
carbon‐based
matrix.
This
study
offers
rational
design
principle
engineering
high‐performance
carbon‐supported
anodes
KIBs.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 28, 2024
Abstract
The
operation
of
graphite‐based
potassium
ion
batteries
(Gr‐PIBs)
remains
challenging
at
low
temperatures,
limited
by
slow
dynamic
behavior.
Herein,
the
solvation
structure
dual‐regulator
strategy
electrolyte
is
proposed
for
multidimensional
improvement
K
+
transfer
process
including
both
bulk
and
interface.
designed
(an
amide
solvent,
2,2,2‐Trifluoro‐N,
N‐dimethylacetamide)
with
freezing
point
viscosity
as
primary
regulator,
a
fluorinated
solvent
(1,1,2,2‐Tetrafluoroethyl‐2,2,3,3‐tetrafluoropropylether)
secondary
regulator
provides
flowing
environment
resistive
interface
fast
transfer.
As
result,
regulated
has
−51.9
°C
exhibits
high
ionic
conductivity
3.2
mS
cm
−1
−20
°C.
Based
on
dual‐regulator,
graphite
anode
delivered
capacity
252
mAh
g
which
over
85%
room‐temperature
capacity,
retention
rate
full
cell
80%.
These
results
demonstrate
that
can
improve
performances
Gr‐PIBs,
promoting
development
low‐temperature
PIBs
beyond.
