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.
EES Catalysis,
Journal Year:
2022,
Volume and Issue:
1(1), P. 45 - 53
Published: Oct. 28, 2022
PdCu/CBC
exhibited
a
remarkable
R
urea
of
763.8
±
42.8
μg
h
−1
mg
cat.
at
−0.50
V
(
vs.
RHE)
and
an
exceptional
FE
69.1
3.8%
−0.40
RHE).
Taking
advantage
operando
spectroscopy
characterization,
the
C–N
coupling
mechanism
was
verified.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
35(30)
Published: April 17, 2023
A
conventional
two-electrode
rechargeable
zinc-air
battery
(RZAB)
has
two
major
problems:
1)
opposing
requirements
for
the
oxygen
reduction
(ORR)
and
evolution
(OER)
reactions
from
catalyst
at
air
cathode;
2)
zinc-dendrite
formation,
hydrogen
generation,
zinc
corrosion
anode.
To
tackle
these
problems,
a
three-electrode
RZAB
(T-RZAB)
including
hydrophobic
discharge
cathode,
hydrophilic
charge
zinc-free
anode
is
developed.
The
decoupled
cathodes
enable
fast
ORR
OER
kinetics,
avoid
oxidization
of
catalyst.
using
tin-coated
copper
foam
that
induces
growth
(002)Zn
planes,
suppresses
evolution,
prevents
Zn
corrosion.
As
result,
T-RZABs
have
high
capacity
per
cycle
800
mAh
cm-2
,
low
voltage
gap
between
discharge/charge
platforms
0.66
V,
an
ultralong
life
5220
h
current
density
10
mA
.
large
T-RZAB
with
Ah
no
obvious
degradation
after
cycling
1000
Finally,
pack
energy
151.8
Wh
kg-1
cost
46.7
US
dollars
kWh-1
assembled.
Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
16(1)
Published: Jan. 4, 2024
Abstract
Achieving
a
highly
robust
zinc
(Zn)
metal
anode
is
extremely
important
for
improving
the
performance
of
aqueous
Zn-ion
batteries
(AZIBs)
advancing
“carbon
neutrality”
society,
which
hampered
by
uncontrollable
growth
Zn
dendrite
and
severe
side
reactions
including
hydrogen
evolution
reaction,
corrosion,
passivation,
etc.
Herein,
an
interlayer
containing
fluorinated
zincophilic
covalent
organic
framework
with
sulfonic
acid
groups
(COF-S-F)
developed
on
(Zn@COF-S-F)
as
artificial
solid
electrolyte
interface
(SEI).
Sulfonic
group
(−
SO
3
H)
in
COF-S-F
can
effectively
ameliorate
desolvation
process
hydrated
ions,
three-dimensional
channel
fluoride
(-F)
provide
interconnected
channels
favorable
transport
ions
ion-confinement
effects,
endowing
Zn@COF-S-F
dendrite-free
morphology
suppressed
reactions.
Consequently,
symmetric
cell
stably
cycle
1,000
h
low
average
hysteresis
voltage
(50.5
mV)
at
current
density
1.5
mA
cm
−2
.
Zn@COF-S-F|MnO
2
delivers
discharge
specific
capacity
206.8
mAh
g
−1
1.2
A
after
800
cycles
high-capacity
retention
(87.9%).
Enlightening,
building
SEI
metallic
surface
targeted
design
has
been
proved
effective
strategy
to
foster
practical
application
high-performance
AZIBs.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
35(17)
Published: Feb. 7, 2023
3D
porous
Zn-metal
anodes
have
aroused
widespread
interest
for
Zn-ion
batteries
(ZIBs).
Nevertheless,
the
notorious
"top-growth"
dendrites
caused
by
intrinsic
top-concentrated
ions
and
randomly
distributed
electrons
may
ultimately
trigger
a
cell
failure.
Herein,
an
electron/ion-flux
dual-gradient
Zn
anode
is
reported
dendrite-free
ZIBs
adopting
printing
technology.
The
3D-printed
with
layer-by-layer
bottom-up
attenuating
Ag
nanoparticles
(3DP-BU@Zn)
establishes
electron/ion
fluxes,
i.e.,
internal
gradient
electron
flux
created
bottom-rich
conductive
nanoparticles,
ion
resulting
from
zincophilic
which
pump
toward
bottom.
Meanwhile,
3D-printing-enabled
hierarchical
structure
continuously
conducting
network
endow
unimpeded
transfer
diffusion
among
electrode,
dominating
bottom-preferential
deposition
behavior.
As
result,
3DP-BU@Zn
symmetrical
affords
highly
reversible
plating/stripping
extremely
small
voltage
hysteresis
of
17.7
mV
superior
lifespan
over
630
h
at
1
mA
cm-2
mAh
.
3DP-BU@Zn//VO2
full
exhibits
remarkable
cyclic
stability
500
cycles.
This
unique
strategy
sheds
light
on
roadmap
next-generation
safe
durable
batteries.
Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
53(10), P. 4877 - 4925
Published: Jan. 1, 2024
This
review
systematically
summarizes
various
redox
mechanisms
in
Zn-based
batteries
and
design
strategies
to
improve
their
electrochemical
performance,
which
provides
a
reference
for
future
development
of
high-performance
batteries.
Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
16(1)
Published: Jan. 4, 2024
Aqueous
zinc
metal
batteries
(AZMBs)
are
promising
candidates
for
next-generation
energy
storage
due
to
the
excellent
safety,
environmental
friendliness,
natural
abundance,
high
theoretical
specific
capacity,
and
low
redox
potential
of
(Zn)
metal.
However,
several
issues
such
as
dendrite
formation,
hydrogen
evolution,
corrosion,
passivation
Zn
anodes
cause
irreversible
loss
active
materials.
To
solve
these
issues,
researchers
often
use
large
amounts
excess
ensure
a
continuous
supply
materials
anodes.
This
leads
ultralow
utilization
squanders
density
AZMBs.
Herein,
design
strategies
AZMBs
with
discussed
in
depth,
from
utilizing
thinner
foils
constructing
anode-free
structures
100%,
which
provides
comprehensive
guidelines
further
research.
Representative
methods
calculating
depth
discharge
different
first
summarized.
The
reasonable
modification
foil
anodes,
current
collectors
pre-deposited
Zn,
aqueous
(AF-AZMBs)
improve
then
detailed.
In
particular,
working
mechanism
AF-AZMBs
is
systematically
introduced.
Finally,
challenges
perspectives
high-utilization
presented.
Energy & Environmental Science,
Journal Year:
2023,
Volume and Issue:
16(4), P. 1610 - 1619
Published: Jan. 1, 2023
A
surface-grafting
strategy
of
molecular
brushes
is
demonstrated
to
create
a
robust
ion-regulating
interface
toward
calendar-life
Zn
anodes
with
high
Coulombic
efficiency
99.9%
and
ultralong
cyclability
over
2500
h
at
10
mA
cm
−2
.
