Abstract
A
key
challenge
for
sodium‐ion
batteries
(SIBs)
lies
in
identifying
suitable
host
materials
capable
of
accommodating
large
Na
+
ions
while
addressing
sluggish
chemical
kinetics.
The
unique
interfacial
effects
heterogeneous
structures
have
emerged
as
a
critical
factor
accelerating
charge
transfer
and
enhancing
reaction
Herein,
MoSe
2
/Bi
Se
3
composites
integrated
with
N‐doped
carbon
nanosheets
are
synthesized,
which
spontaneously
self‐assemble
into
flower‐like
microspheres
(MoSe
@N‐C).
Electrochemical
measurements
density
functional
theory
(DFT)
calculations
underscore
the
significant
improvement
kinetics
enabled
by
structural
advantages
composite.
Remarkably,
nanosheet
morphology
provides
more
storage
sites,
uniformly
distributed
heterostructure
can
optimize
carrier
concentration
alter
electric
field
distribution,
thereby
facilitating
enabling
additional
sodium
ion
storage.
When
employed
an
anode
material
SIBs,
@N‐C
exhibits
exceptional
performance,
delivering
reversible
capacity
521.4
mAh
g
−1
at
1
800
cycles
407.9
10
over
1400
cycles.
Notably,
be
fully
restored
to
its
initial
level
after
cycling
high
current
densities.
This
study,
combining
experimental
theoretical
insights,
novel
perspective
on
interface
engineering
advance
practical
application
SIBs.
Advanced Energy Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Июнь 14, 2024
Abstract
Ternary
metal
sulfides
(TMSs)
have
garnered
significant
attention
as
alternative
electrode
materials
for
rechargeable
metal‐ion
battery
anodes
and
electrodes
electrochemical
supercapacitors
(SCs).
With
the
escalating
costs
of
lithium,
research
has
shifted
toward
sources
like
sodium‐ion
batteries
(NIBs)
potassium‐ion
(KIBs),
offering
cost‐effectiveness
greater
natural
abundance
globally.
However,
pursuing
suitable
beyond
lithium‐ion
(LIBs),
such
NIBs,
KIBs,
SCs
with
enhanced
energy
power
density,
remains
a
formidable
challenge.
In
this
context,
TMSs
demonstrate
remarkable
reversibility
NIB,
KIB,
SC
materials,
showcasing
multi‐electron
redox
reactions,
improved
electronic
conductivity,
higher
theoretical
capacities.
Numerous
articles
highlighted
promising
future
conversion
storage
(EECS).
Nonetheless,
practical
applications
are
hindered
by
limitations,
including
structural
stability
during
long‐standing
cyclability,
scalability.
This
review
systematically
demonstrates
how
varying
synthesis
routes
can
tailor
nanostructures
their
influence
on
activity.
Additionally,
an
in‐depth
literature
survey
is
provided
performances
in
summarize
recent
advancements
best
available
literature.
Moreover,
prospects
challenges
highlighted,
expressing
optimism
that
will
emerge
pivotal
EECS.
Energy & environment materials,
Год журнала:
2023,
Номер
6(4)
Опубликована: Март 16, 2023
Although
chalcogenide
anodes
possess
higher
potassium
storage
capacity
than
intercalated‐based
graphite,
their
drastic
volume
change
and
the
irreversible
electrochemical
reactions
still
hinder
effective
electron/ion
transfer
during
potassiation/depotassiation
process.
To
solve
above
problems,
this
article
proposes
synthesis
of
a
lamellar
nanostructure
where
graphene
nanosheets
are
embedded
with
SnSb
2
Se
4
nanoparticles
(SnSb
/GNS).
In
product,
fine
monodisperse
coupled
to
form
porous
network
framework,
which
can
effectively
mitigate
changes
electrode
guarantee
efficient
potassium‐ion
through
synergistic
interactions
among
multiple
elements.
Various
analyses
prove
that
inherits
advantages
binary
Sb
3
SnSe
while
avoiding
disadvantages,
confirming
effect
ternary–chalcogenide
system.
When
tested
for
storage,
obtained
composite
delivers
high
specific
368.5
mAh
g
−1
at
100
mA
stable
cycle
performance
265.8
500
over
cycles.
Additionally,
iron
hexacyanoferrate
cathode
/GNS
anode
paired
fabricate
full
cell,
shows
excellent
cyclic
stability.
conclusion,
strategy
employs
atomic
doping
interface
interaction,
provides
new
insights
design
high‐rate
materials.
Advanced Energy Materials,
Год журнала:
2024,
Номер
14(29)
Опубликована: Май 17, 2024
Abstract
Alkali
metal‐ion
capacitors
integrate
two
electrodes
from
both
batteries
and
supercapacitors
(SCs),
combining
the
advantages
of
large
capacity,
high‐rate
performance,
long
cycle
life.
Potassium
(K)
has
similar
properties
to
sodium
(Na)
lithium
(Li),
however,
abundance
K
in
crust
is
same
with
Na,
much
higher
than
Li.
Due
fast
kinetics
low
self‐discharge
Potassium‐ion
(PICs),
PICs
attract
more
interest
researchers
field
electrochemical
energy
storage.
The
current
dilemma
that
research
on
inherited
sodium‐ion
(SICs)
lithium‐ion
(LICs).
Despite
advancements
electrode
materials,
there
still
a
lack
profound
understanding
intrinsic
issues
key
challenges
PICs.
In
order
provide
detailed
systematic
analysis
development
PICs,
this
review,
special
attention
given
following
Accordingly,
full
eight
sections:
i)
history,
ii)
defining
equations,
iii)
storage
mechanism,
iv)
device
configuration,
v)
vi)
electrolyte
design,
vii)
technologies,
viii)
future
perspectives.
This
review
provides
an
intensive
theoretical
foundation
for
able
pave
path
practical
application
Journal of Materials Chemistry A,
Год журнала:
2024,
Номер
12(29), С. 17835 - 17895
Опубликована: Янв. 1, 2024
Challenges
and
progress
made
in
alkali
metal
hybrid
ion
capacitors
are
discussed,
including
electrode
materials,
mechanisms,
device/electrode
components,
electrochemical
properties,
structural
regulation
aqueous
nonaqueous
systems.
Transition
metal
chalcogenides
and
halides
(TMCs
TMHs)
have
been
extensively
used
reported
as
electrode
materials
in
diverse
primary
secondary
batteries.
This
review
summarizes
the
suitability
of
TMCs
TMHs
focusing
on
thermal
batteries
(utilized
for
defense
applications)
energy
storage
systems
like
mono-
multivalent
rechargeable
The
report
also
identifies
specific
physicochemical
properties
that
need
to
be
achieved
same
employed
cathode
anode
monovalent
systems.
For
example,
stability
plays
a
crucial
role
delivering
performance
battery
system,
whereas
electrical
conductivity
layered
structure
similar
play
vital
enhancing
electrochemical
It
can
summarized
nonlayered
CoS2,
FeS2,
NiS2,
WS2
were
found
ideal
primarily
due
their
better
stability,
structures
these
with
coating
carbon
allotrope
(CNT,
graphene,
rGO)
suitable
alkali
ion
On
other
hand,
vanadium,
titanium,
molybdenum,
tin,
antimony
based
high
oxidation
state
which
resists
stronger
field
produced
during
interaction
di-
trivalent
ions
material
facilitating
higher
density
minimal
structural
volume
changes
at
rate
discharge.
ACS Nano,
Год журнала:
2023,
Номер
17(11), С. 10462 - 10473
Опубликована: Май 15, 2023
The
conversion
and
alloying-type
anodes
for
potassium-ion
batteries
(PIBs)
have
drawn
attention.
However,
it
is
still
a
challenge
to
relieve
the
huge
volume
expansion/electrode
pulverization.
Herein,
we
synthesized
composite
material
comprising
Bi0.48Sb1.52Se3
nanoparticles
uniformly
dispersed
in
carbon
nanofibers
(Bi0.48Sb1.52Se3@C).
Benefiting
from
synergistic
effects
of
high
electronic
conductivity
mechanical
confinement
fiber
that
buffers
large
chemomechanical
stress,
Bi0.48Sb1.52Se3@C//K
half
cells
deliver
reversible
capacity
(491.4
mAh
g-1,
100
cycles
at
mA
g-1)
an
extraordinary
cyclability
(80%
retention,
1000
g-1).
Furthermore,
Bi0.48Sb1.52Se3@C-based
PIB
full
achieve
energy
density
230
Wh
kg-1.
In
situ
transmission
electron
microscopy
(TEM)
reveals
intercalation,
conversion,
alloying
three-step
reaction
mechanism
amorphous
transient
phase.
More
impressively,
nanofiber
electrode
can
almost
return
its
original
diameter
after
potassiation
depotassiation
reaction,
indicating
highly
change
process,
which
distinct
other
type
electrodes.
This
work
stable
potassium
storage
mechanisms
Bi0.48Sb1.52Se3@C
material,
provides
effective
strategy
enable
conversion/alloying-type
performance
PIBs
applications.
