Journal of Metals Materials and Minerals,
Год журнала:
2024,
Номер
34(2), С. 2009 - 2009
Опубликована: Июнь 4, 2024
Zn
metal
batteries
and
capacitors
(ZMBs/ZMCs)
are
gaining
significant
attention
due
to
their
low
cost,
high
safety,
theoretical
capacity.
However,
the
utilization
of
decreases
coulombic
efficiency.
Here,
we
present
a
novel
approach
enhance
conductivity
host
materials
by
utilizing
3D
conductive
structural
network
copper
mesh.
The
mesh
serves
as
high-conductive
matrix
additionally
coating
it
with
source.
Finally,
flexible
reduced
graphene
oxide
(rGO)
was
deposited
on
Zn-coated
an
anode
protective
layer.
renders
fast
plating/stripping
enables
more
contact
electrolyte.
rGO
film
alleviates
local
charge
accumulation
inhibits
corrosion.
As
result,
modified
(RCZ)
exhibited
longer
lifespan
200
h
than
planar
foil
which
cycled
only
for
30
h.
RCZ||AC
full
capacitor
obtained
capacity
retention
97.9%
after
9000
times
cycling.
RCZ
integrates
merits
structure
realizing
dual-functionalized
anode.
strategy
sheds
light
other
batteries.
Journal of the American Chemical Society,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 8, 2025
Aqueous
zinc
(Zn)
metal
batteries
(ZMBs)
have
received
great
attention
due
to
their
safety
and
environmental
friendliness.
Although
aqueous
electrolytes
facilitate
fast
kinetics
in
oxide
cathodes,
incompatibility
with
the
Zn
anodes
triggers
severe
hydrogen
evolution
reaction
(HER)
dendrite
growth.
Herein,
a
self-phase
separated
electrolyte
(SPSE)
is
proposed
fulfill
contradictory
requirements
of
anode
cathode
ZMBs.
Molecular
modeling
experimental
investigations
verify
that
hydrophobic
fluorinated
solvent
moderate
dielectric
constant
large
Hildebrand
parameter
disparity
relative
water
contributes
spontaneous
aqueous–nonaqueous
phase
separation
within
SPSE
against
stirring
aging.
In
as-developed
SPSE,
nonaqueous
effectively
inhibits
HER
formation
by
synergistic
effect
regulated
deposition
protective
solid
interphase
(SEI).
Meanwhile,
ensures
ion
insertion/extraction
dynamics.
Consequently,
allows
for
Zn||Zn
symmetrical
cells
2500
h
cycle
life
ultralow
corrosion
current
(0.08
mA
cm–2).
Notably,
Zn|SPSE|V2O5
full
cell
sustains
over
3000
cycles
negligible
corrosion,
pouch
demonstrates
remarkable
operation
stability
repeated
rollover.
Our
design
concept
paves
promising
path
practical
ZMBs
combine
long-term
cyclability,
enhanced
safety,
durability.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 1, 2024
Abstract
In
recent
years,
aqueous
zinc
ion
batteries
(ZIBs)
with
ultra‐high
safety
and
environmental
friendliness
have
emerged
as
a
promising
candidates
for
energy
storage
conversion
devices.
However,
the
severe
side
reactions
dendrites
issues
discourage
practical
application
of
ZIBs.
Recently,
biopolymer‐based
gel
electrolytes
disclosed
large
potential
in
tackling
these
challenges
ZIBs,
numerous
advancements
reported.
Their
advantages
lie
suppressing
including
hydrogen
evolution
Zn
metal
anode
corrosion,
well
inhibiting
growth
dendrites.
This
review
comprehensively
examines
classification,
structures
properties
electrolytes,
focus
on
hydrogel
derived
from
various
natural
macromolecular
biopolymers,
along
brief
discussion
non‐hydrogel
using
ionic
liquids
or
organic
solutions
solvents.
Subsequently,
preparation
physical
chemical
methods
are
summarized.
Furthermore,
applications
ZIBs
diverse
cathodes
materials
introduced.
Finally,
it
highlights
benefits
excellent
electrochemical
performance
outlining
their
prospects
next
generation
proposing
future
perspectives.
Carbon Neutralization,
Год журнала:
2025,
Номер
4(2)
Опубликована: Фев. 12, 2025
ABSTRACT
Aqueous
zinc‐ion
batteries
(AZIBs)
are
considered
one
of
the
most
viable
options
for
large‐scale
energy
storage
applications
due
to
their
high
theoretical
capacity
and
abundant
reserves.
However,
issues
such
as
dendritic
growth
water‐induced
corrosion
reaction
zinc
anode
have
hindered
commercialization.
To
address
these
challenges,
in
situ
generated
multifunctional
poly(caffeic
acid)
(PCA)
interface
with
confined
Cu
sites
oxygen‐containing
groups
was
constructed
on
surface
metal
via
ultraviolet
(UV)
treatment.
The
smooth
compact
PCA
effectively
prevents
from
by
active
water
electrolyte,
while
synergies
zincophilic
copper
constitute
3D
ion
channels
skeleton
accelerates
migration
Zn
2+
enhance
deposition
kinetics,
thus
lowering
desolvation
energy.
symmetric
cells
using
PCA‐modified
demonstrated
stable
cycling
over
2500
h
2200
at
current
densities
1.0
5.0
mA
cm
−2
,
respectively,
much
better
than
controls.
Additionally,
assembled
PCA@Zn//I
2
full
cell
enabled
continuous
1000
cycles
a
density
A
g
−1
presented
reliable
operation
100
pouch
configuration.
Abstract
The
rampant
“top‐growth”
dendrites,
hydrogen
evolution
reaction
(HER),
and
zinc
(Zn)
self‐corrosion
severely
impede
the
further
development
of
rechargeable
aqueous
ion
batteries.
To
address
these
challenges,
a
novel
double‐layer
gradient
coating
consisting
zincophilic
Sn
inner
layer
an
organic
polymer
outer
(OSA/PAM@Sn)
is
constructed
on
surface
Zn
anode.
layer,
composed
cross‐linked
oxidized
sodium
alginate
polyacrylamide
(OSA/PAM),
not
only
serves
as
physical
barrier
to
isolate
active
water
but
also
accelerates
2+
diffusion
by
facilitating
desolvation
process
[Zn(H
2
O)
6
]
due
its
plentiful
polar
functional
groups,
thereby
effectively
suppressing
detrimental
HER
self‐corrosion.
Simultaneously,
loose
can
offer
abundant
nucleation
sites
induce
uniform
“bottom‐to‐top”
deposition
with
low
overpotential.
Benefiting
from
synergistic
effect
designed
coating,
OSA/PAM@Sn‐Zn
anode
exhibits
remarkable
reversibility,
lifespans
over
5000
1200
h
at
1
mA
cm
−2
–1
mAh
5
–5
in
symmetric
cells,
respectively.
Additionally,
MnO
||OSA/PAM@Sn‐Zn
full
battery
displays
improved
rate
performance
cycle
stability.
This
work
emphasizes
importance
effects
interface
design
achieve
side
reaction‐free
dendrite‐free
anodes.
Abstract
Zn
metal
anode
faces
numerous
challenges
that
severely
limit
its
practical
application.
Polymer
interlayer
is
one
of
the
mostly
used
strategies
to
enhance
performance.
The
chemical
structure,
physical
properties,
as
well
morphology
these
polymer
interlayers
significantly
influenced
on
effectiveness
zinc
protection.
Considering
complexity
and
their
composite
materials
in
this
field,
it
highly
needed
summarize
current
progresses
anodes.
This
paper
reviews
recent
advances
design
stabilize
from
different
perspectives,
including
hydrogel
interlayer,
porous
conductive
interlayers.
Finally,
review
outlines
possible
future
developments
field
towards
commercialization
anode.
