Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 31, 2024
Abstract
With
the
continuous
advancement
of
internet
things
and
information
technology,
implantable
bioelectronics
have
attracted
considerable
attention
for
effective
health
monitoring
improvement
vital
signs.
Nevertheless,
conventional
power
sources
are
typically
plagued
by
short
lifetimes,
inflexible
packaging
modalities,
toxic
corrosion
risks
that
damage
soft
tissues.
In
this
study,
a
biocompatible
quasi‐solid‐state
aqueous
Zn‐ion
hybrid
capacitor
(AZIHCs)
is
developed
with
high
energy
density
durability.
The
heterostructured
porous
COF‐5/Ti
3
C
2
T
x
cathode
exhibited
enhanced
interface
charge
transfer
accelerated
Zn
2+
migration
kinetics,
delivering
an
outstanding
areal
capacitance
952
mF
cm
−2
160
mWh
.
Furthermore,
AZIHCs
demonstrated
reversible
capacity
524
cm⁻
,
completely
damaged
device
can
still
electronics
after
being
reconnected
using
superior
silk
nanofiber‐containing
zwitterionic
hydrogel
electrolyte.
These
implanted
AZIHCs,
good
biocompatibility,
showed
substantial
deformation
stability
80.2%
2000
cycles
when
firmly
adhered
to
tissues,
illustrating
impressively
stable
performance
in
tissue
fluid
or
wetted
surface
efficient
supply.
This
study
provides
novel
approach
high‐performance
storage
devices
multifunctional
wearable
applications
organism
patches
vivo
detection.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 9, 2025
Abstract
Due
to
their
ultrahigh
volumetric
capacitance,
metallic
conductivity,
and
excellent
mechanical
properties,
Ti
3
C
2
T
X
MXene
nanosheets
are
considered
promising
building
blocks
for
the
construction
of
advanced
fibers
toward
practical
applications
fibriform
supercapacitors
(FSCs)
that
emerge
as
an
important
power
supplying
system
wearable
electronics.
However,
because
incompatible
interfacial
microstructural
design
concepts,
synergistic
improvement
in
output
capacitance
tensile
strength
remains
a
critical
challenge
fibers.
Herein,
versatile
pH‐triggered
strategy
is
presented
modulating
spinning
dope
high‐performance
with
simultaneous
enhancement
electrochemical
strength.
Carboxylated
cellulose
nanofibers
(CNF‐C)
selected
additives
stock
multiscale
sheet‐wire
linkages
arbitrarily
formed
via
nucleophilic
substitution
dehydration
reactions
by
adjusting
pH
value.
The
nematic
LC
behavior
spinnability
significantly
improved
good
ordering
nanosheets.
Impressively,
optimized
MCC4
fiber
achieves
electrical
conductivity
3007
S
cm
−1
,
specific
1253
F
−3
258
MPa.
solid‐state
FSCs
assembled
from
exhibit
remarkable
energy
density
22.78
mWh
together
charge/discharge
reliability
outstanding
robustness.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 12, 2024
Abstract
With
the
urgent
demand
for
wearable
electronics
and
smart
textiles
in
modern
society,
fabric‐based
supercapacitors
(FSCs)
have
attracted
increasing
attention
due
to
their
easy
integration,
high
power
density,
long‐term
stability.
However,
low
energy
density
deformable
capability
of
supply
cause
limitations
actual
applications.
Here,
a
1T‐MoS
2
@Ti
3
C
T
x
heterostructure
nonwoven
fabric
(NWF)
with
interfacial
adhesion,
electrical
conductivity,
mechanical
deformability
is
developed,
which
great
significance
unitization
as
an
advanced
FSCs
electrode.
Owing
designed
aligned
active
interface,
conductive
network,
situ
coupling,
NWF
exhibits
ion
adsorption
barrier,
fast
diffusion
kinetics,
accelerated
electron
transport,
resulting
large
capacitance
(425
F
g
−1
)
cycling
stability
(20
000
cycles)
1
m
H
SO
4
electrolyte.
Additionally,
corresponding
solid‐state
asymmetric
(D‐SCs)
provide
119.3
µWh
cm
−2
at
800.8
µW
,
realizing
practical
applications
powering
electroluminescent
device,
2‐D
code,
sound‐controlled
electronic
fan.
More
importantly,
D‐SCs
exhibit
robust
power‐supply
capability,
maintaining
82.1%,
84.6%,
89.9%
capacity
retentions
after
2000
cycles
folding,
twisting,
bending
conditions,
respectively.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 31, 2024
Abstract
With
the
continuous
advancement
of
internet
things
and
information
technology,
implantable
bioelectronics
have
attracted
considerable
attention
for
effective
health
monitoring
improvement
vital
signs.
Nevertheless,
conventional
power
sources
are
typically
plagued
by
short
lifetimes,
inflexible
packaging
modalities,
toxic
corrosion
risks
that
damage
soft
tissues.
In
this
study,
a
biocompatible
quasi‐solid‐state
aqueous
Zn‐ion
hybrid
capacitor
(AZIHCs)
is
developed
with
high
energy
density
durability.
The
heterostructured
porous
COF‐5/Ti
3
C
2
T
x
cathode
exhibited
enhanced
interface
charge
transfer
accelerated
Zn
2+
migration
kinetics,
delivering
an
outstanding
areal
capacitance
952
mF
cm
−2
160
mWh
.
Furthermore,
AZIHCs
demonstrated
reversible
capacity
524
cm⁻
,
completely
damaged
device
can
still
electronics
after
being
reconnected
using
superior
silk
nanofiber‐containing
zwitterionic
hydrogel
electrolyte.
These
implanted
AZIHCs,
good
biocompatibility,
showed
substantial
deformation
stability
80.2%
2000
cycles
when
firmly
adhered
to
tissues,
illustrating
impressively
stable
performance
in
tissue
fluid
or
wetted
surface
efficient
supply.
This
study
provides
novel
approach
high‐performance
storage
devices
multifunctional
wearable
applications
organism
patches
vivo
detection.