ACS Sustainable Chemistry & Engineering,
Год журнала:
2024,
Номер
13(1), С. 386 - 395
Опубликована: Дек. 30, 2024
Hydrogel
electrolytes
have
distinguished
themselves
in
aqueous
zinc
metal
batteries
due
to
their
strong
designability
and
diverse
functions,
especially
inducing
even
deposition
inhibiting
side
reactions.
While
the
high
water
content
of
hydrogel
can
enhance
Zn2+
ionic
conductivity,
it
also
tends
exacerbate
undesirable
water-related
reactions;
thus,
how
realize
fast
ion
transport
kinetics
under
low
remains
a
challenge.
This
work
introduces
carboxylated
cellulose
nanofibers
with
ample
diversified
polar
functional
groups
into
cross-linking
polyacrylamide
networks
form
electrolytes.
The
hydrophilic
nanofibers,
including
carboxyl,
hydroxyl,
inter/intramolecular
ether
bonds,
not
only
grasp
molecules
facilitate
desolvation
[Zn(H2O)6]2+
but
disperse
single-site
binding
energy
through
multiple
adjacent
O
atoms,
effectively
reconciling
conflicting
demands
conductivity
content.
Beyond
favorable
mechanical
properties,
as-prepared
induce
flat
grain-stacking
deposition,
mitigate
reactions,
suppress
polyiodide
shuttling.
Consequently,
symmetric/asymmetric
zinc–iodine
demonstrate
much
improved
electrochemical
performance.
provides
reference
for
intricately
designing
specific
functions
by
screening
molecular
structures
components.
ACS Nano,
Год журнала:
2024,
Номер
18(42), С. 28557 - 28574
Опубликована: Окт. 9, 2024
Aqueous
zinc–iodine
batteries
(ZIBs)
based
on
the
reversible
conversion
between
various
iodine
species
have
garnered
global
attention
due
to
their
advantages
of
fast
redox
kinetics,
good
reversibility,
and
multielectron
feasibility.
Although
significant
progress
has
been
achieved
in
ZIBs
with
two-electron
I–/I2
pathway
(2eZIBs),
relatively
low
energy
density
hindered
practical
application.
Recently,
four-electron
I–/I2/I+
electrochemistry
(4eZIBs)
shown
a
improvement
density.
Nonetheless,
use
4eZIBs
is
challenged
by
poor
reversibility
polyiodide
shuttling
during
I+
hydrolysis
I2/I+
conversion.
In
this
Review,
we
thoroughly
summarize
fundamental
understanding
two
ZIBs,
including
reaction
mechanisms,
limitations,
strategies.
Importantly,
provide
an
intuitive
evaluation
assess
potential
highlight
critical
impacts
Zn
utilization
rate.
Finally,
emphasize
cost
issues
associated
electrodes
propose
closed-loop
recycling
routes
for
sustainable
storage
ZIBs.
These
findings
aim
motivate
application
advanced
promote
storage.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 13, 2024
Abstract
Aqueous
zinc‐ion
batteries
represent
a
highly
promising
next‐generation
electrochemical
energy
storage
system
because
of
their
safety,
environmental
friendliness,
resource
abundance,
and
simple
assembly
conditions.
However,
the
formation
growth
zinc
dendrites
on
anode
seriously
hinder
practical
application
batteries.
Zincophilic
design,
which
enables
uniform
nucleation/deposition,
offers
an
effective
solution
to
achieve
dendrite‐free
anodes.
Despite
significant
progress
in
field
zincophilic
research
this
currently
lacks
clear
analysis
guidance.
This
paper
provides
comprehensive
overview
current
status
design
mechanism
for
from
three
aspects:
construction
layers,
addition
additives
electrolyte,
3D
host.
Moreover,
challenges
facing
industrialization
commercialization
further
are
briefly
discussed.
Abstract
Aqueous
zinc
metal
batteries
(AZMBs)
are
emerging
as
a
powerful
contender
in
the
realm
of
large‐scale
intermittent
energy
storage
systems,
presenting
compelling
alternative
to
existing
ion
battery
technologies.
They
harness
benefits
zinc's
high
safety,
natural
abundance,
and
favorable
electrochemical
potential
(−0.762
V
vs
Standard
hydrogen
electrode,
SHE),
alongside
an
impressive
theoretical
capacity
(820
mAh
g
−1
5655
cm
−3
).
However,
performance
ZMBs
is
impeded
by
several
challenges,
including
poor
compatibility
with
high‐loading
cathodes
persistent
side
reactions.
These
issues
intricately
linked
inherent
physicochemical
properties
anodes
(ZMAs).
Here,
this
review
delves
into
traditional
methods
ZMAs
production,
encompassing
extraction,
electrodeposition,
rolling
processes.
The
discussion
then
progresses
exploration
cutting‐edge
methodologies
designed
enhance
ZMAs.
categorized
alloying,
pre‐treatment
substrate,
advanced
electrodeposition
techniques,
development
composite
utilizing
powder.
offers
comparative
analysis
merits
drawbacks
various
optimization
strategies,
highlighting
beneficial
outcomes
achieved.
It
aspires
inspire
novel
concepts
for
advancement
innovation
next‐generation
zinc‐based
solutions.
Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 4, 2025
Abstract
Anode‐free
aqueous
zinc
(Zn)
metal
batteries
(AFZMBs)
possess
an
optimal
battery
architecture
configuration
because
no
excess
Zn
source
is
involved
in
the
charge/discharge
processes,
rendering
it
feasible
to
enhance
energy
density
of
batteries.
However,
rapid
capacity
fading
due
unstable
anode‐side
current
collector/electrolyte
interfacial
chemistry,
which
results
dendrite
growth,
impedes
their
practical
application,
especially
quasi‐solid‐state
AFZMBs.
Herein,
a
robust
bilayer
interphase
design
strategy
between
gel
electrolyte
and
copper
collector
proposed
achieve
high‐energy
stable
Utilizing
upper
mass
transfer
layer
regulate
ion
transport
lower
zincophilic
electron
induce
initial
uniform
nucleation
balance
surface
electric
field,
dendrite‐free
deposition
prominent
reversibility
are
achieved.
Therefore,
significantly
improves
cycling
stability
Zn//I
2
Additionally,
fabricated
AFZMBs
employing
pre‐intercalated
VO
cathode
deliver
attractive
power
densities
(186.1
Wh
kg
−1
/470
W
145.3
/1.74
kW
,
based
on
active
material).
Moreover,
successful
extension
flexible
offers
promising
pathway
for
development
wearable
electronic
devices.
Nanoscale Advances,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
Based
on
its
unique
one-dimensional
configuration,
great
flexibility
and
high
safety,
fibrous
aqueous
batteries
have
been
recognized
as
a
promising
candidate
for
energy
sources
of
wearable
electronics
with
the
feature
carbon
nanomaterials.
Journal of the American Chemical Society,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 5, 2025
Aqueous
zinc-iodine
(Zn-I2)
batteries
with
four-electron
(4e)
I-/I0/I+
conversion
(4eZIBs)
offer
high
energy
density
but
face
significant
challenges
for
application,
including
the
polyiodide
shuttle
effect
and
I+
hydrolysis
I2
cathodes
poor
reversibility
Zn
anodes.
Here,
we
report
a
coordination
chemistry
strategy
to
address
these
issues
simultaneously
by
introducing
hexamethylenetetramine
(HMTA)
as
an
electrolyte
additive.
In
aqueous
electrolytes,
HMTA
undergoes
protonation
form
positively
charged
nitrogen
moieties
that
effectively
precipitate
polyiodides
species
(ICl2-)
mitigate
hydrolysis.
This
enables
4eZIBs
achieve
near-theoretical
specific
capacity
of
425
mA
h
g-1
(based
on
mass
iodine)
Coulombic
efficiency
(CE)
exceeding
99%.
On
anode,
preferentially
adsorbs
onto
its
surface,
inhibiting
competitive
water
adsorption
suppress
both
dendrite
formation
hydrogen
evolution.
As
result,
first
time,
durable
4eZIB
performance
in
pouch-cell
configurations
limited
supply.
A
0.5
pouch
cell
15%
utilization
exhibits
113.0
W
kg-1
anodes)
excellent
cycling
stability
over
1400
cycles,
highlighting
potential
next-generation
storage
systems.
