Comprehensive crystallographic engineering for high-efficiency and durable zinc metal anodes
Zhongcheng Peng,
Xiran Shen,
Binghui Li
и другие.
Progress in Materials Science,
Год журнала:
2025,
Номер
unknown, С. 101453 - 101453
Опубликована: Фев. 1, 2025
Язык: Английский
Mitigating ion flux vortex enables reversible metal electrodeposition
Research Square (Research Square),
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 20, 2025
Abstract
Metal
anodes
hold
considerable
promise
for
high-energy-density
batteries
but
are
fundamentally
limited
by
electrochemical
irreversibility
caused
uneven
metal
deposition
and
dendrite
formation,
which
compromise
battery
lifespan
safety.
The
chaotic
ion
flow
(or
flux
vortex)
near
the
electrode
surface,
driving
these
instabilities,
has
remained
elusive
due
to
limitations
in
conventional
techniques
such
as
scanning
electron
atomic
force
microscopies,
invasive
incapable
of
probing
internal
structures
deposits.
Here,
we
employ
in-situ
X-ray
computed
tomography
non-destructively
visualize
Zn
on
LAPONITE-coated
anodes,
providing
insights
into
structural
evolution
orientation.
Combined
with
computational
fluid
dynamics
simulations,
demonstrate
that
LAPONITE
coating,
its
separated
positive
negative
charge
centers,
suppresses
ionic
vortex
guiding
uniform,
dense,
vertically
aligned
growth
along
(100)
plane,
thereby
significantly
mitigating
growth.
This
translates
a
3.54-Ah
Zn-MnO
2
pouch
cell
stable
performance
over
100
cycles,
offering
viable
path
toward
scalable,
high-performance
metal-anode
batteries.
Язык: Английский
Fundamental understanding of texturing electrodeposition metal zinc anodes for practical aqueous Zn‐ion batteries
EcoEnergy,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 15, 2024
Abstract
One
of
the
most
promising
electrochemical
energy
storage
technologies,
aqueous
zinc
ion
batteries
(AZIBs),
is
garnering
increasing
attention
due
to
their
inherent
safety,
high
sustainability,
and
low
cost.
However,
challenges
posed
by
dendrite
formation
side
reactions
resulting
from
uneven
deposition
metal
anodes
significantly
impede
reversibility
cycling
stability
AZIBs.
Given
influence
crystallographic
anisotropy
on
diversity
deposited
morphology
crystal
orientation,
a
thorough
understanding
intrinsic
texture
crucial
in
achieving
dendrite‐free
anode.
This
review
highlights
groundbreaking
efforts
significant
advancements
promoting
orientational
electrodeposition
zinc,
encompassing
fundamental
electrocrystallization
theories
as
well
approaches
for
textured
electrodeposition.
The
goal
provide
comprehensive
crystallography,
electrochemistry,
induction
mechanisms
involved
controlling
sustainable
Lastly,
four
critical
research
aspects
are
proposed
facilitate
commercialization
reliable
Язык: Английский