Angewandte Chemie International Edition,
Journal Year:
2022,
Volume and Issue:
61(40)
Published: Aug. 16, 2022
The
hydrogen
evolution
and
dendrite
issues
are
the
notorious
culprits
of
limited
lifespan
Coulombic
efficiency
(CE)
Zn
anodes,
particularly
at
harsh
test
conditions.
Herein,
considering
Lewis
acidic
feature
Zn2+
,
abundant
unshared
pair
electrons
zincophilic
bases
proposed
as
decent
electrolyte
additives
to
stabilize
anodes
"Three
High"
conditions
(high
depth
discharge,
high
areal
capacity
current).
can
remove
H2
O
from
solvated
sheaths
confine
activity
by
breaking
its
bonding
network.
combination
these
factors
effectively
restricts
O-involved
side
reactions
enables
dendrite-free
deposition,
even
effectiveness
this
strategy
is
fully
proved
a
series
base
molecules.
Noticeably,
Zn||Zn
cell
with
an
area
20
cm2
using
DMF-containing
be
stably
cycled
over
1000
h
60
%
DOD,
100
CE.
Angewandte Chemie International Edition,
Journal Year:
2023,
Volume and Issue:
62(26)
Published: May 3, 2023
Vanadium
based
compounds
are
promising
cathode
materials
for
aqueous
zinc
(Zn)-ion
batteries
(AZIBs)
due
to
their
high
specific
capacity.
However,
the
narrow
interlayer
spacing,
low
intrinsic
conductivity
and
vanadium
dissolution
still
restrict
further
application.
Herein,
we
present
an
oxygen-deficient
vanadate
pillared
by
carbon
nitride
(C3
N4
)
as
AZIBs
through
a
facile
self-engaged
hydrothermal
strategy.
Of
note,
C3
nanosheets
can
act
both
nitrogen
source
pre-intercalation
species
transform
orthorhombic
V2
O5
into
layered
NH4
V4
O10
with
expanded
spacing.
Owing
structure
abundant
oxygen
vacancies,
Zn2+
ion
(de)intercalation
kinetics
ionic
in
promoted.
As
result,
delivers
exceptional
Zn-ion
storage
ability
capacity
of
about
370
mAh
g-1
at
0.5
A
,
high-rate
capability
194.7
20
stable
cycling
performance
10
000
cycles.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
36(11)
Published: Oct. 13, 2023
Abstract
Zn‐ion
batteries
(ZIBs)
have
long
suffered
from
the
unstable
Zn
metal
anode,
which
faces
numerous
challenges
concerning
dendrite
growth,
corrosion,
and
hydrogen
evolution
reaction.
The
absence
of
H
2
O
adsorption
control
techniques
has
become
a
bottleneck
for
further
development
ZIBs.
Using
stearic
acid
(SA)‐modified
Cu@Zn
(SA‐Cu@Zn)
anode
as
an
example,
this
work
illustrates
how
lotus
effect
controls
energy
on
anode.
In
situ
integrated
Cu
nanorods
arrays
hydrophobic
long‐chain
alkyl
groups
are
constructed,
provide
zincophilic
ordered
channels
property.
Consequently,
SA‐Cu@Zn
exhibits
long‐term
cycling
stability
over
2000
h
high
average
Coulombic
efficiency
(CE)
99.83%
at
1
mA
cm
−2
mAh
,
improves
electrochemical
performance
Zn||V
5
full
cell.
Density
functional
theory
(DFT)
calculations
combined
with
water
contact
angle
(CA)
measurements
demonstrate
that
larger
CA
weaker
than
Zn.
Moreover,
presence
ensures
selective
well
explaining
excellent
reversibility
is
achieved.
This
demonstrates
effectiveness
controllable
deposition
mechanism,
offering
universal
strategy
achieving
stable
ZIB
anodes.
Journal of Materials Chemistry A,
Journal Year:
2023,
Volume and Issue:
11(9), P. 4400 - 4427
Published: Jan. 1, 2023
The
synthetic
strategies,
application
and
future
development
of
non-precious
metal-based
self-supporting
electrodes
for
Zn–air
batteries
have
been
systematically
summarized
according
to
the
recent
research
progress.
Angewandte Chemie International Edition,
Journal Year:
2022,
Volume and Issue:
61(40)
Published: Aug. 16, 2022
The
hydrogen
evolution
and
dendrite
issues
are
the
notorious
culprits
of
limited
lifespan
Coulombic
efficiency
(CE)
Zn
anodes,
particularly
at
harsh
test
conditions.
Herein,
considering
Lewis
acidic
feature
Zn2+
,
abundant
unshared
pair
electrons
zincophilic
bases
proposed
as
decent
electrolyte
additives
to
stabilize
anodes
"Three
High"
conditions
(high
depth
discharge,
high
areal
capacity
current).
can
remove
H2
O
from
solvated
sheaths
confine
activity
by
breaking
its
bonding
network.
combination
these
factors
effectively
restricts
O-involved
side
reactions
enables
dendrite-free
deposition,
even
effectiveness
this
strategy
is
fully
proved
a
series
base
molecules.
Noticeably,
Zn||Zn
cell
with
an
area
20
cm2
using
DMF-containing
be
stably
cycled
over
1000
h
60
%
DOD,
100
CE.
