Abstract
Anode‐free
aqueous
zinc
metal
batteries
(AZMBs)
offer
significant
potential
for
energy
storage
due
to
their
low
cost
and
environmental
benefits.
Ti
3
C
2
T
x
MXene
provides
several
advantages
over
traditional
metallic
current
collectors
like
Cu
Ti,
including
better
Zn
plating
affinity,
lightweight,
flexibility.
However,
self‐freestanding
in
AZMBs
remain
underexplored,
likely
challenges
with
deposition
reversibility.
This
study
investigates
the
combination
of
a
film
advanced
electrolyte
engineering,
specifically
examining
effects
Li‐salt
propylene
carbonate
(PC)
as
additives
on
While
using
Li
+
ions
an
additive
alone
facilitates
uniform
bulk
metals
through
electrostatic
shielding
effect,
addition
negatively
impacts
uniformity
.
Meanwhile,
PC
forms
organic
SEI
layer
causes
agglomeration.
The
use
both
together
results
ZnF
‐containing
hybrid
improved
interfacial
kinetics,
promoting
more
deposition.
approach
achieves
average
Coulombic
efficiency
(CE)
96.8%
150
cycles
(a
maximum
CE
97.8%).
highlights
strategic
difference
design,
emphasizing
need
tailored
approaches
optimize
MXenes,
contrasting
collectors.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 2, 2024
Abstract
The
zinc
(Zn)
anode
in
zinc‐ion
batteries
suffers
from
potential
defects
such
as
wild
dendrite
growth,
severe
Zn
corrosion,
and
violent
hydrogen
evolution
reaction,
inducing
erratic
interfacial
charge
transfer
kinetics,
which
eventually
leads
to
electrochemical
failure.
Here,
collagen,
a
biomacromolecule,
is
added
achieve
the
reconstruction
of
electrolyte
hydrogen‐bonding
network
modification
derived
interface.
Benefiting
electronegativity
advantage
amino
groups
(‐NH
2
)
(002)
crystal
plane
preferentially
exposed
solid
interface
(SEI)
rich
ZnF
3
N
promotes
rapid
anode.
Thence,
an
impressive
cumulative
capacity
7,500
mAh
cm
−2
at
30
mA
achieved
assembled
Zn|VO
cell
exhibited
robust
cycle
reversibility
even
when
subject
maximum
current
100
A
g
−1
ultra‐long
life
20,000
cycles
50
,
with
single‐cycle
loss
low
0.0021%.
Such
convenient
strategy
solvent
sheathing
regulation
manipulation
opening
up
promising
universal
approach
toward
long‐life
high‐rate
anodes.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(51)
Опубликована: Авг. 28, 2024
Designing
solid
electrolyte
is
deemed
as
an
effective
approach
to
suppress
the
side
reaction
of
zinc
anode
and
active
material
dissolution
cathodes
in
liquid
electrolytes
for
metal
batteries
(ZMBs).
Herein,
kaolin
comprehensively
investigated
raw
prepare
(KL-Zn)
ZMBs.
As
demonstrated,
KL-Zn
excellent
electronic
insulator
ionic
conductor,
which
presents
wide
voltage
window
2.73
V,
high
conductivity
5.08
mS
cm
Abstract
The
development
of
Zn‐ion
batteries
(ZIBs)
is
always
hindered
by
the
ruleless
interface
reactions
between
solid
electrode
and
liquid
electrolyte,
seeking
appropriate
electrolyte
additives
considered
as
a
valid
approach
to
stabilize
electrode/electrolyte
interphases
for
high‐performance
ZIBs.
Benefiting
from
unique
solubility
TiOSO
4
in
acidic
solution,
composite
2
m
ZnSO
+30
(ZSO/TSO)
configured
its
positive
contribution
Zn//Zn
cells,
Zn//Cu
Zn//NH
V
O
10
are
comprehensively
investigated
electrochemical
tests
theoretical
calculations.
Based
on
calculations,
introduction
contributes
facilitating
desolvation
kinetics
Zn
2+
ions
guarantees
stable
both
zinc
anode
NH
cathode.
As
expected,
cells
keep
long‐term
cycling
behavior
3750
h
under
test
condition
1
mA
cm
−2
–1
mAh
,
deliver
high
Coulombic
efficiency
99.9%
1000
cycles
5
maintain
reversible
specific
capacity
193.8
g
−1
after
1700
at
A
ZSO/TSO
electrolyte.
These
satisfactory
results
manifest
that
additive
holds
great
potential
improve
performances
Abstract
Anode‐free
aqueous
zinc
metal
batteries
(AZMBs)
offer
significant
potential
for
energy
storage
due
to
their
low
cost
and
environmental
benefits.
Ti
3
C
2
T
x
MXene
provides
several
advantages
over
traditional
metallic
current
collectors
like
Cu
Ti,
including
better
Zn
plating
affinity,
lightweight,
flexibility.
However,
self‐freestanding
in
AZMBs
remain
underexplored,
likely
challenges
with
deposition
reversibility.
This
study
investigates
the
combination
of
a
film
advanced
electrolyte
engineering,
specifically
examining
effects
Li‐salt
propylene
carbonate
(PC)
as
additives
on
While
using
Li
+
ions
an
additive
alone
facilitates
uniform
bulk
metals
through
electrostatic
shielding
effect,
addition
negatively
impacts
uniformity
.
Meanwhile,
PC
forms
organic
SEI
layer
causes
agglomeration.
The
use
both
together
results
ZnF
‐containing
hybrid
improved
interfacial
kinetics,
promoting
more
deposition.
approach
achieves
average
Coulombic
efficiency
(CE)
96.8%
150
cycles
(a
maximum
CE
97.8%).
highlights
strategic
difference
design,
emphasizing
need
tailored
approaches
optimize
MXenes,
contrasting
collectors.
