Abstract
Rechargeable
Zn–air
batteries
(ZABs)
hold
promise
as
the
next‐generation
energy‐storage
devices
owing
to
their
affordability,
environmental
friendliness,
and
safety.
However,
cathodic
catalysts
are
easily
inactivated
in
prolonged
redox
potential
environments,
resulting
inadequate
energy
efficiency
poor
cycle
stability.
To
address
these
challenges,
anodic
active
sites
require
multiple‐atom
combinations,
that
is,
ensembles
of
metals.
Heterogeneous
bimetallic
atomically
dispersed
(HBADCs),
consisting
heterogeneous
isolated
single
atoms
atomic
pairs,
expected
synergistically
boost
cyclic
oxygen
reduction
evolution
reactions
ZABs
tuneable
microenvironments.
This
minireview
revisits
recent
achievements
HBADCs
for
ZABs.
Coordination
environment
engineering
catalytic
substrate
structure
optimization
strategies
summarized
predict
innovation
direction
ZAB
performance
enhancement.
These
divided
into
ferrous
nonferrous
dual
with
unique
microenvironments,
including
synergistic
effects,
ion
modulation,
electronic
coupling,
activity.
Finally,
conclusions
perspectives
relating
future
challenges
opportunities
provided
optimise
Chemical Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Alkaline
byproducts
at
the
zinc
anode
interface
continue
to
exacerbate
subsequent
side
reactions,
so
realizing
timely
salvage
of
electrodes
is
equally
important
compared
upfront
prevention
strategies.
Hydrogen
evolution
reaction
(HER)
on
Zn-metal
constrains
the
development
of
aqueous
zinc
batteries.
Ionic
liquid
(IL)
additives
are
proposed
to
isolate
interfacial
H2O
and
suppress
HER.
However,
whether
addition
either
hydrophilic
or
hydrophobic
ILs
can
effectively
HER
seems
"contradictory".
Herein,
although
disproportionation
hydrophilic/hydrophobic
properties
leads
an
content
difference,
we
demonstrate
that
both
present
a
consistent
influence
configuration
hydrogen
bonds.
Specifically,
they
decrease
amount
weak
bonds
increase
number
strong
simultaneously,
which
makes
deprotonation
(related
HER)
more
difficult.
In
addition,
by
capturing
dynamic
through
in
situ
spectroscopy,
successfully
correlate
with
detrimental
parasitic
surface.
This
study
enhances
understanding
interface
engineering
from
perspective
bond
evolution.
Abstract
Layered
vanadates
are
promising
cathode
materials
for
aqueous
zinc‐ion
batteries
(AZIBs).
Herein,
a
layered
potassium
vanadate
K
0.5
V
2
O
5
is
reported
as
material
AZIBs.
It
provides
high
reversible
capacity
of
471.1
mAh
g
−1
with
unprecedent
cycle
life
at
harsh
low
rate
0.21
C
(90.2%
retention
after
400
cycles,
running
time
150
days),
remarkable
capability
and
decent
long‐term
cycling
stability
(no
decay
1700
cycles).
According
to
series
tests,
it
revealed
that
the
energy
storage
mechanism
involves
initial
extraction
+
followed
by
subsequent
(de)intercalation
Zn
2+
/H
,
in
which
concomitant
structure
change
chemical
state
transition
vanadium
possess
reversibility.
Moreover,
exhibits
rapid
ion
diffusion,
favoring
its
capability.
Additionally,
also
demonstrates
excellent
low‐temperature
adaptability,
can
operate
stably
−30
°C.
The
electrochemical
performance,
facile
preparation,
cost
promise
an
attractive
candidate
practical
Abstract
Rechargeable
Zn–air
batteries
(ZABs)
hold
promise
as
the
next‐generation
energy‐storage
devices
owing
to
their
affordability,
environmental
friendliness,
and
safety.
However,
cathodic
catalysts
are
easily
inactivated
in
prolonged
redox
potential
environments,
resulting
inadequate
energy
efficiency
poor
cycle
stability.
To
address
these
challenges,
anodic
active
sites
require
multiple‐atom
combinations,
that
is,
ensembles
of
metals.
Heterogeneous
bimetallic
atomically
dispersed
(HBADCs),
consisting
heterogeneous
isolated
single
atoms
atomic
pairs,
expected
synergistically
boost
cyclic
oxygen
reduction
evolution
reactions
ZABs
tuneable
microenvironments.
This
minireview
revisits
recent
achievements
HBADCs
for
ZABs.
Coordination
environment
engineering
catalytic
substrate
structure
optimization
strategies
summarized
predict
innovation
direction
ZAB
performance
enhancement.
These
divided
into
ferrous
nonferrous
dual
with
unique
microenvironments,
including
synergistic
effects,
ion
modulation,
electronic
coupling,
activity.
Finally,
conclusions
perspectives
relating
future
challenges
opportunities
provided
optimise
