Hydrogel Electrolyte with Regulated Water Activity and Hydrogen Bond Network for Ultra‐Stable Zinc Electrode
Advanced Energy Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 14, 2024
Abstract
Quasi‐solid‐state
zinc‐ion
batteries
(QZIBs)
have
attracted
wide
attention
due
to
their
excellent
dimensional
stability
and
high
safety.
However,
poor
ion
conduction
capabilities,
severe
dendrite
growth,
rampant
side
reactions
still
hinder
commercialization.
The
regulation
of
the
solvation
structure
Zn
2+
is
considered
be
an
effective
method
address
these
issues.
Herein,
a
hydrogel
electrolyte
with
regulated
(HE‐RS)
designed
via
combination
tetramethyl
urea
(TMU)
additive
polyvinyl
alcohol
(PVA)
matrix.
hydrophilic
─C═O
group
TMU
exhibits
strong
affinity
PVA
chains,
improving
mechanical
strength
─N(CH
3
)
2
groups
at
both
ends
exhibit
hydrophobic
characteristics,
which
leads
local
hydrophobicity
decreased
water
activity.
Additionally,
abundant
oxygen‐containing
(electronegative)
on
TUM
can
adsorb
provide
sites
for
transference.
Benefiting
from
merits,
deposition
behavior
are
regulated.
Consequently,
Zn||Zn
symmetric
cell
HE‐RS
stable
cycling
life
exceeding
2000
h.
Moreover,
HE‐RS‐based
Zn||NH
4
V
O
10
capacity
retention
96.4%
after
1000
cycles
A
g
−1
.
Язык: Английский
Design and Structure of Electrolytes for All‐Weather Aqueous Zinc Batteries
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 1, 2024
Abstract
Rechargeable
aqueous
zinc
batteries
(AZBs)
utilizing
water‐borne
electrolytes
are
intrinsically
safe
electrochemical
devices
that
promising
in
next‐generation
energy
storage.
Such
application
requires
adaptivity
to
global
climate,
especially
at
grid‐scale,
thus
their
stability
of
performance
varying
temperatures
is
critical.
Many
essential
properties
AZBs,
i.e.,
ion
transfer,
redox
kinetics,
etc.,
largely
governed
by
the
because
relatively
limited
stable
phase
temperature
water.
This
limitation
extremely
vital
cold
regions
since
charging
and
discharging
become
more
difficult
sub‐zero
range
due
water
freezing.
Despite
development
various
electrolyte
strategies
recent
years,
comprehensive
reviews
focusing
on
this
topic
remain
limited.
research
diverse
reasons
underneath
failure
AZBs
extreme
provides
a
thorough
analysis
possible
resolutions
from
an
perspective.
It
starts
with
challenges
faced
both
high
low
concerning
electrolytes.
Different
addressing
these
discussed,
providing
insights
into
under
conditions.
Finally,
review
concludes
summary
outlook
design
structure
for
all‐weather
integrating
innovative
non‐aqueous
battery
systems.
Язык: Английский
Molecular Crowding Agent Modified Polyanionic Gel Electrolyte for Zinc Ion Batteries Operating at 100 °C
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 27, 2024
Abstract
Aqueous
zinc‐ion
batteries
(AZIBs)
attract
attention
due
to
their
safety
and
high
specific
capacity.
However,
practical
applications
are
constrained
by
Zn
anode
corrosion,
dendritic
growth,
poor
high‐temperature
adaptability
induced
a
strong
hydrogen‐bond
network
in
aqueous
electrolytes.
In
this
work,
dual
polyanionic
gel
electrolyte
(denoted
as
PAM‐PAMPS‐10PD)
is
developed
capable
of
withstanding
temperatures
(100
°C)
situ
polymerization.
The
abundant
anionic
groups
the
greatly
improve
2+
transport
inducing
uniform
deposition
.
Then
addition
high‐boiling
molecular
crowding
agent
1,5‐pentanediol
(PD)
can
inhibit
water
activity
enhancing
hydrogen
bonding
with
H
2
O
changing
solvation
structure
corrosion.
As
result,
symmetric
battery
using
PAM‐PAMPS‐10PD
be
stably
cycled
for
at
least
500
h
100
°C
0.5
mA
cm
−2
/0.5
mAh
,
realizing
dendrite‐free
zinc
anodes
temperatures.
Moreover,
Zn–AC
full
has
capacity
retention
47.8%
after
3000
cycles
4
This
study
provides
beneficial
reference
design
high‐performance
electrolytes
establishes
solid
foundation
application
AZIBs.
Язык: Английский
Ultra-stable, multimodal, and reversible luminescence switching in 0D Mn(II)-based hybrid halide nanofiber film for photonic applications
Journal of Colloid and Interface Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Язык: Английский
Aqueous Zinc‐Based Batteries: Active Materials, Device Design, and Future Perspectives
Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 5, 2025
Abstract
Aqueous
zinc‐based
batteries
(AZBs)
are
emerging
as
a
compelling
candidate
for
large‐scale
energy
storage
systems
due
to
their
cost‐effectiveness,
environmental
friendliness,
and
inherent
safety.
The
design
development
of
high‐performance
AZBs
have
thus
been
the
focus
considerable
study
efforts;
yet,
certain
properties
electrode
materials
electrolytes
still
limit
development.
Here,
comprehensive
overview
evaluation
current
progress,
existing
limitations,
potential
solutions
achieve
long‐cycle
stability
fast
kinetics
in
is
provided.
Detailed
analyses
structural
design,
electrochemical
behavior,
zinc‐ion
mechanisms
various
presented.
Additionally,
key
issues
research
directions
related
zinc
anodes
selection
systematically
discussed
guide
future
with
superior
performance.
Finally,
this
review
provides
outlook
on
AZBs,
highlighting
challenges
opportunities,
foster
continued
rapid
advancement
broader
practical
applications
field.
Язык: Английский