Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(38)
Published: July 25, 2024
Zinc
dendrite,
active
iodine
dissolution,
and
polyiodide
shuttle
caused
by
the
strong
interaction
between
liquid
electrolyte
solid
electrode
are
chief
culprits
for
capacity
attenuation
of
aqueous
zinc-iodine
batteries
(ZIBs).
Herein,
mullite
is
adopted
as
raw
material
to
prepare
Zn-based
solid-state
(Zn-ML)
ZIBs
through
zinc
ion
exchange
strategy.
Owing
merits
low
electronic
conductivity,
diffusion
energy
barrier,
adsorption
capability,
Zn-ML
can
effectively
isolate
redox
reactions
anode
AC@I
Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(21)
Published: March 19, 2024
Abstract
Photo‐rechargeable
zinc‐ion
batteries
(PRZIBs)
have
attracted
much
attention
in
the
field
of
energy
storage
due
to
their
high
safety
and
dexterity
compared
with
currently
integrated
lithium‐ion
solar
cells.
However,
challenges
remain
toward
practical
applications,
originating
from
unsatisfactory
structural
design
photocathodes,
which
results
low
photoelectric
conversion
efficiency
(PCE).
Herein,
a
flexible
MoS
2
/SnO
‐based
photocathode
is
developed
via
constructing
sunflower‐shaped
light‐trapping
nanostructure
3D
hierarchical
self‐supporting
properties,
enabled
by
embellishment
nanosheets
SnO
quantum
dots
on
carbon
cloth
(MoS
QDs@CC).
This
provides
favorable
pathway
for
effective
separation
photogenerated
electron‐hole
pairs
efficient
Zn
2+
photocathodes.
Consequently,
PRZIB
assembled
QDs@CC
delivers
desirable
capacity
366
mAh
g
−1
under
light
intensity
100
mW
cm
−2
,
achieves
an
ultra‐high
PCE
2.7%
at
current
density
0.125
mA
.
In
practice,
battery
system
consisting
four
series‐connected
quasi‐solid‐state
PRZIBs
successfully
applied
as
wearable
wristband
smartwatches,
opens
new
door
application
next‐generation
devices.