Journal of Applied Polymer Science,
Год журнала:
2023,
Номер
141(2)
Опубликована: Окт. 18, 2023
Abstract
Conductive
hydrogels
can
be
utilized
in
the
field
of
flexible
supercapacitors
due
to
their
stretchable
properties
and
high
ionic
conductivity.
However,
many
conductive
lose
stretchability
conductivity
at
subzero
temperatures.
Herein,
a
novel
Janus
POSS‐based
hydrogel
electrolyte
that
shows
excellent
flexibility
low
temperatures
is
designed
prepared
by
copolymerization
acrylamide
water‐soluble
Janus‐type
polyhedral
oligomeric
silsesquioxane
(AS‐POSS)
containing
sodium
sulfonate
groups
double
bonding
groups.
The
AS‐POSS
LiCl
endow
with
anti‐freezing
ability.
Simultaneously,
enable
successful
POSS
crosslinking
polymer
network,
resulting
highly
(1445%)
(0.067
S
cm
−1
)
−20°C.
Thereafter,
all‐in‐one
supercapacitor
in‐situ
polymerization
aniline.
Based
on
exceptional
electrolyte,
exhibits
stable
electrochemical
performance
(>90%
capacitance
retained
under
deformation
−20°C)
cycling
stability
(only
19.7%
decay
over
2000
charge/discharge
cycles
expected
promising
gel
for
an
resists
freezing.
Journal of Physics Conference Series,
Год журнала:
2024,
Номер
2783(1), С. 012031 - 012031
Опубликована: Июнь 1, 2024
Abstract
Hydrogels
are
water-rich
network
polymers.
The
hydrophilic
groups
on
the
polymer
molecular
chains
ensure
their
swelling
property
and
high
water
content,
cross-linked
hydrogel
intermolecular
interactions
between
generate
cohesive
forces
to
prevent
further
penetration
of
molecules.
porous
structure
gel
enables
molecules
freely
traverse
high-frequency
flow
in
offers
a
viable
method
for
preparation
electrolytes.
As
result,
electrolytes
now
an
important
conductive
material
compensate
defects
conventional
electronic
materials,
such
as
hardness
roughness,
lack
environmental
friendliness.
This
paper
starts
with
electrolyte
preparation.
Good
stretchability,
conductivity,
biocompatibility,
self-healing
properties
demonstrated
by
introducing
different
materials
nanomaterials.
types
synthetic
matrices
extended
according
type
composite
making
usable
many
fields
like
sensing,
electrochemical
energy
storage,
biomedicine,
detection,
flexible
wearable
fields,
other
applications.
Journal of Applied Polymer Science,
Год журнала:
2023,
Номер
141(2)
Опубликована: Окт. 18, 2023
Abstract
Conductive
hydrogels
can
be
utilized
in
the
field
of
flexible
supercapacitors
due
to
their
stretchable
properties
and
high
ionic
conductivity.
However,
many
conductive
lose
stretchability
conductivity
at
subzero
temperatures.
Herein,
a
novel
Janus
POSS‐based
hydrogel
electrolyte
that
shows
excellent
flexibility
low
temperatures
is
designed
prepared
by
copolymerization
acrylamide
water‐soluble
Janus‐type
polyhedral
oligomeric
silsesquioxane
(AS‐POSS)
containing
sodium
sulfonate
groups
double
bonding
groups.
The
AS‐POSS
LiCl
endow
with
anti‐freezing
ability.
Simultaneously,
enable
successful
POSS
crosslinking
polymer
network,
resulting
highly
(1445%)
(0.067
S
cm
−1
)
−20°C.
Thereafter,
all‐in‐one
supercapacitor
in‐situ
polymerization
aniline.
Based
on
exceptional
electrolyte,
exhibits
stable
electrochemical
performance
(>90%
capacitance
retained
under
deformation
−20°C)
cycling
stability
(only
19.7%
decay
over
2000
charge/discharge
cycles
expected
promising
gel
for
an
resists
freezing.
