Advanced Energy Materials,
Journal Year:
2021,
Volume and Issue:
11(29)
Published: June 12, 2021
Abstract
Potassium‐ion
batteries
(PIBs)
have
emerged
as
a
compelling
complement
to
existing
lithium‐ion
for
large‐scale
energy
storage
applications,
due
the
resource‐abundance
of
potassium,
low
standard
redox
potential
and
high
conductivity
K
+
‐based
electrolytes.
Rapid
progress
has
been
made
in
identifying
suitable
carbon
anode
materials
address
sluggish
kinetics
huge
volume
variation
problems
caused
by
large‐size
.
However,
most
research
into
focused
on
structural
design
performance
optimization
one
or
several
parameters,
rather
than
considering
holistic
especially
realistic
applications.
This
perspective
examines
recent
efforts
enhance
terms
initial
Coulombic
efficiency,
capacity,
rate
capability,
cycle
life.
The
balancing
intercalation
surface‐driven
capacitive
mechanisms
while
designing
structures
is
emphasized,
after
which
compatibility
with
electrolyte
cell
assembly
technologies
should
be
considered
under
practical
conditions.
It
anticipated
that
this
work
will
engender
further
intensive
can
better
aligned
toward
implementation
storage.
Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
16(1)
Published: Jan. 8, 2024
Metal
tellurides
(MTes)
are
highly
attractive
as
promising
anodes
for
high-performance
potassium-ion
batteries.
The
capacity
attenuation
of
most
reported
MTe
is
attributed
to
their
poor
electrical
conductivity
and
large
volume
variation.
evolution
mechanisms,
dissolution
properties,
corresponding
manipulation
strategies
intermediates
(K-polytellurides,
K-pTe
Advanced Functional Materials,
Journal Year:
2020,
Volume and Issue:
30(52)
Published: Oct. 30, 2020
Abstract
Potassium‐ion
battery
anode
materials
with
high
capacity
always
hold
one
or
more
K
ions
and
are
companied
by
large
volume
swelling,
which
threatens
the
stability
of
solid‐electrolyte‐interface
(SEI)
layers,
results
in
low
coulombic
efficiency
as
well
inferior
cycling
stability.
Herein,
an
avenue
that
induces
rapid
formation
continuous
SEI
layers
confinement
effect
to
boost
storage
property
is
proposed.
CuS
nanoplates
dispersed
on
core
layer
carbon
nanofibers
further
confined
Nb
2
O
5
‐C
shell
layer,
constructing
core–shell
structure
CuS‐C@Nb
(NFs).
The
protects
from
immediate
contact
electrolyte
brings
about
expansion,
assisting
layers.
As
a
result,
retention
NFs
electrode
remains
at
93.1%
after
100
cycles,
much
larger
than
CuS‐C
NF
(74.6%);
process
stabilized
above
99.0%
shortens
cycles
30
cycles.
This
progress
also
found
CoS
‐C@Nb
NiS
electrodes.
improved
brought
offer
facile
approach
ion
conversion
reaction
anodes.
Advanced Energy Materials,
Journal Year:
2021,
Volume and Issue:
11(29)
Published: June 12, 2021
Abstract
Potassium‐ion
batteries
(PIBs)
have
emerged
as
a
compelling
complement
to
existing
lithium‐ion
for
large‐scale
energy
storage
applications,
due
the
resource‐abundance
of
potassium,
low
standard
redox
potential
and
high
conductivity
K
+
‐based
electrolytes.
Rapid
progress
has
been
made
in
identifying
suitable
carbon
anode
materials
address
sluggish
kinetics
huge
volume
variation
problems
caused
by
large‐size
.
However,
most
research
into
focused
on
structural
design
performance
optimization
one
or
several
parameters,
rather
than
considering
holistic
especially
realistic
applications.
This
perspective
examines
recent
efforts
enhance
terms
initial
Coulombic
efficiency,
capacity,
rate
capability,
cycle
life.
The
balancing
intercalation
surface‐driven
capacitive
mechanisms
while
designing
structures
is
emphasized,
after
which
compatibility
with
electrolyte
cell
assembly
technologies
should
be
considered
under
practical
conditions.
It
anticipated
that
this
work
will
engender
further
intensive
can
better
aligned
toward
implementation
storage.
