ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(13), P. 16175 - 16185
Published: March 21, 2024
Zinc-ion
batteries
(ZIBs)
are
promising
energy
storage
devices
with
safe,
nonflammable
electrolytes
and
abundant,
low-cost
electrode
materials.
Their
practical
applications
hampered
by
various
water-related
undesirable
reactions,
such
as
the
hydrogen
evolution
reaction
(HER),
corrosion
of
zinc
metal,
water-induced
decay
cathode
Polymer
hydrogel
were
used
to
control
these
reactions.
However,
salt,
water,
polymeric
backbones
intervene
in
polymer
hydrogels,
currently,
there
no
systematic
studies
on
how
salt
water
concentrations
synergistically
affect
hydrogels'
electrochemical
performance.
Here,
we
an
situ
polymerization
method
synthesize
polyacrylamide
(PAM)
hydrogels
varied
Zn(ClO4)2
(0.5
2.0
mol
kg–1)
(40
90
wt
%)
concentrations.
performances
Zn||Ti
half-cells,
Zn||Zn
symmetrical
cells,
Zn||V2O5
full
cells
have
been
comprehensively
evaluated.
Although
ionic
conductivity
increases
concentration,
a
high
concentration
kg–1
more
Zn2+
solvated
H2O
would
induce
severe
HER
Zn
at
electrolyte/electrode
interfaces.
A
narrow
window
70–80
%
is
optimal
balance
needs
for
achieving
restricting
The
chemically
active
counts
roughly
64.1–73.1
total
electrolytes.
PAM
electrolyte
1.0
80
enables
1200
h
stable
cycling
symmetric
cell
99.24%
Coulombic
efficiency
half-cell.
Due
V2O5,
70
delivers
best
performance
cell,
which
can
retain
73.7%
its
initial
capacity
after
400
charge/discharge
cycles.
Our
results
show
that
precise
their
windows
reduce
fraction
while
retaining
essential
enabling
high-performance
ZIBs.
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(8), P. 10218 - 10226
Published: Feb. 21, 2024
Aqueous
zinc-ion
batteries
(AZIBs)
have
gained
significant
attentions
for
their
inherent
safety
and
cost-effectiveness.
However,
challenges,
such
as
dendrite
growth
anodic
corrosion
at
the
Zn
anode,
hinder
commercial
viability.
In
this
paper,
an
organic-inorganic
coating
layer
(Nafion-TiO
Nano Letters,
Journal Year:
2024,
Volume and Issue:
24(28), P. 8542 - 8549
Published: July 8, 2024
Aqueous
aluminum-ion
batteries
(AAIBs)
are
considered
a
strong
candidate
for
the
new
generation
of
energy
storage
devices.
The
lack
suitable
cathode
materials
has
been
bottleneck
factor
hindering
future
development
AAIBs.
In
this
work,
we
design
and
construct
highly
effective
with
dual
morphologies.
Two-dimensional
(2D)
layered
MXene
possessed
good
conductivity
hydrophilicity,
which
used
as
substrates
to
deposit
rod-shaped
vanadium
oxides
(V
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 30, 2024
Abstract
Due
to
the
unique
“Grotthus
mechanism”,
aqueous
proton
batteries
(APBs)
are
promising
energy
devices
with
intrinsic
safety
and
sustainability.
Although
polymers
tunable
molecular
structures
ideal
electrode
materials,
their
unsatisfactory
proton‐storage
redox
behaviors
hinder
practical
application
in
APB
devices.
Herein,
a
novel
planar
phenazine
(PPHZ)
polymer
robust
extended
imine‐rich
skeleton
is
synthesized
used
for
first
time.
The
long‐range
configuration
achieves
ordered
stacking
reduced
conformational
disorder,
while
high
conjugation
strong
π‐electron
delocalization
optimizes
bandgap
electronic
properties,
enabling
low
diffusion
barriers,
activity,
superior
electron
affinity.
As
such,
PPHZ
as
an
material
exhibits
fast,
stable,
unrivaled
large
capacity
of
273.3
mAh
g
−1
at
0.5
A
(1
C)
1
M
H
2
SO
4
electrolyte,
which
highest
value
among
proton‐inserted
electrodes
acidic
electrolytes.
Dynamic
situ
techniques
confirm
reversibility
upon
uptake/removal,
corresponding
protonation
pathways
elucidated
by
theoretical
calculations.
Moreover,
pouch‐type
cell
using
ultralong
lifespan
over
30
000
cycles,
further
verifying
its
prospect.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(44)
Published: July 31, 2024
Abstract
A
ladder‐type
rigid‐coplanar
polymer
with
highly
ordered
molecular
arrangement
has
been
designed
via
a
covalent
cycloconjugation
conformational
strategy.
Benefitting
from
the
extended
π‐electron
delocalization
in
aromatic
polymeric
backbone,
prepared
exhibits
fast
intra‐chain
charge
transport
along
chain,
realizing
extraordinary
proton‐storage
capability
aqueous
proton
batteries.Affordable
and
safe
batteries
(APBs)
unique
“Grotthuss
mechanism,”
are
very
significant
for
advancing
carbon
neutrality
initiatives.
While
organic
polymers
offer
robust
adaptable
framework
that
is
well‐suited
APB
electrodes,
limited
redox
capacity
constrained
their
broader
application.
Herein,
(PNMZ)
strategy
optimized
electronic
structure
within
high‐aromaticity
skeleton.
As
result,
exceptional
kinetics,
which
evidenced
by
in‐operando
monitoring
techniques
theoretical
calculations.
It
achieves
remarkable
of
189
mAh
g
−1
at
2
excellent
long‐term
cycling
stability,
approximately
97.8
%
retention
over
10,000
cycles.
Finally,
high‐performance
all‐polymer
device
successfully
constructed
desirable
99.7
after
6,000
cycles
high
energy
density
56.3
Wh
kg
.
Journal of Materials Chemistry C,
Journal Year:
2023,
Volume and Issue:
11(37), P. 12590 - 12598
Published: Jan. 1, 2023
An
electrochromic
supercapacitor
device,
designed
using
WO
3
/WS
2
nanoflakes,
successfully
demonstrated
excellent
capacitive
performance
along
with
the
ability
of
color
modulation
when
P3HT
and
viologen
are
used
as
active
components.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(40)
Published: Aug. 9, 2024
Abstract
Proton
batteries
have
emerged
as
a
promising
solution
for
grid‐scale
energy
storage
benefiting
their
high
safety
and
abundant
raw
materials.
The
battery
chemistry
based
on
proton‐ions
is
intrinsically
advantageous
in
integrating
fast
diffusion
kinetics
capacities,
thus
offering
great
potential
to
break
through
the
limit
of
capacitors
power
traditional
batteries.
Significant
efforts
been
dedicated
advancing
proton
batteries,
leading
successive
milestones
recent
years.
Herein,
progress
summarized
insights
into
challenges
electrodes,
electrolytes
future
opportunities
enhancing
full‐cell
applications
are
provided.
fundamentals
electrochemical
representative
faradaic
electrodes
discussed,
delving
current
limitations
mechanism
studies
performances.
Subsequently,
classification,
challenges,
strategies
improving
protonic
addressed.
Finally,
state‐of‐the‐art
full‐cells
explored,
views
rational
design
devices
achieving
high‐performance
aqueous
offered.
