In
this
study,
we
demonstrate
a
stretchable,
fully
self-healable,
temperature-tolerant,
and
water-proof
supercapacitor
with
high
electrochemical
performance
via
deliberate
selection
of
materials
device
architecture.
Distinct
from
previous
works,
our
whole
is
stretchable
owing
to
the
application
specially
devised
self-healing
oxime-carbamate
based
polyurethane
(OC-PU)
substrate
film,
polymer
(poly(ether-thioureas)
triethylene
glycol)
capped
Au
nanosheet
current
collector
(TUEG3-Au
NS)
newly
synthesized
organohydrogel
(PVA-Borax/PAAm
OHG)
electrolyte.
The
fabricated
exhibits
specific
capacitance
165.5
F
g-1
retention
81%
over
stretching
by
40%
even
after
repetitive
healing
damages,
all
components
(full
self-healing)
damages
recovery
83%,
wide
operational
temperature
range
-20
60
℃
retaining
91%
at
RT.
Furthermore,
m-LED
stably
operated
immersed
in
water
regardless
mechanical
deformation
damage
due
self-bonded
encapsulation
layer
hydrophobic
OC-PU
film.
With
vertically
integrated
patch
consisting
strain
sensor,
bio-signals
are
detected
using
stored
energy
℃.
This
work
suggests
potential
multi-functional
as
an
storage
for
wearable
electronics
featuring
longevity
stability
under
harsh
environments.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Авг. 10, 2024
Abstract
The
preparation
of
high‐performance
and
fire‐safe
electrolytes
for
flexible
quasi‐solid‐state
supercapacitors
is
challenging.
In
this
work,
a
novel
multifunctional
deep
eutectic
solvent
gel
(DESG)
fabricated
using
acrylic
acid
urea
as
hydrogen
bond
donors
choline
chloride
acceptor.
DESG
shows
high
ionic
conductivity
(0.552
S
m
−1
),
good
electrochemical
performance
(specific
capacitance:
106.8
F
g
wide
operating
temperature
range
(−20–90
°C),
being
promising
candidate
solid‐state
supercapacitors.
Furthermore,
it
exhibits
thermoelectric
conversion
capability
(Seebeck
coefficient:
1.56
mV
K
ideal
capacitors
fire‐warning
sensors.
prepared
rapidly
self‐extinguishes
after
removal
from
fire,
reaching
limiting
oxygen
index
value
38.0%
demonstrating
its
excellent
flame
retardancy.
addition,
has
self‐healing
(healing
efficiency
84.3%).
work
provides
new
insights
into
the
application
fire‐safety
eutectogels
Materials Horizons,
Год журнала:
2024,
Номер
11(6), С. 1395 - 1413
Опубликована: Янв. 1, 2024
This
review
summarizes
the
advances
in
self-healing
materials
developed
for
electrodes
and
electrolytes
of
energy
harvesting
storage
devices
(TENG,
supercapacitors
batteries)
with
enhanced
durability
functionality.
RSC Sustainability,
Год журнала:
2023,
Номер
2(2), С. 288 - 319
Опубликована: Дек. 1, 2023
Immobilization
of
eutectic
mixtures
in
supramolecular
gels
formed
using
low
molecular
weight
gelators
is
a
smart
strategy
to
expand
their
design
space.
Advances
the
last
five
years
are
reviewed
from
viewpoint
sustainability.
