Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 3, 2024
Abstract
To
address
the
issues
of
dendrite
growth
and
zinc
corrosion
in
rechargeable
zinc‐air
batteries,
multifunctional
glycine/valine
additives
are
introduced
into
electrolyte.
By
regulating
solvation
shell
structure
enhancing
interfacial
stability,
these
aim
to
protect
reversibility
stability
anode.
Glycine/valine
molecules
inhibit
formation
[Zn(H
2
O)
6
]
2+
Zn
5
(OH)
8
(OAc)
·2H
O
by‐products
at
interface
by
replacing
active
water
a
strong
alkaline
environment.
Additionally,
they
form
hydrophobic
electric
double
layer
on
metal
surface,
during
charge/discharge
process,
construct
an
situ
solid
electrolyte
layer.
This
further
suppresses
hydrogen
evolution
reaction
growth.
The
superior
long‐term
cycling
Zn||Zn
cells,
Zn||Cu,
full
cells
demonstrates
effectiveness
additives.
Energy & Environmental Science,
Journal Year:
2024,
Volume and Issue:
17(9), P. 3179 - 3190
Published: Jan. 1, 2024
Dual-anion
chemistry
is
engineered
by
adding
strong
polarity
Ac
−
into
Zn(OTf)
2
electrolyte,
which
enables
synchronous
regulation
of
solvation
structure
and
electric
double
layer,
thereby
countering
rapid
Zn
2+
consumption
prompting
favorable
interphase
formation
for
durable
metal
anodes.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(30)
Published: May 7, 2024
Abstract
Regulating
the
electric
double
layer
(EDL)
structure
of
zinc
metal
anode
by
using
electrolyte
additives
is
an
efficient
way
to
suppress
interface
side
reactions
and
facilitate
uniform
deposition.
Nevertheless,
there
are
no
reports
investigating
proactive
design
EDL‐regulating
before
start
experiments.
Herein,
a
functional
group
assembly
strategy
proposed
for
modulating
EDL,
thereby
realizing
long‐lasting
anode.
Specifically,
screening
ten
common
groups,
N,
N‐dimethyl‐1H‐imidazole‐1‐sulfonamide
(IS)
designed
assembling
imidazole
group,
characterized
its
high
adsorption
capability
on
anode,
sulfone
which
exhibits
strong
binding
with
Zn
2+
ions.
Benefiting
from
functionalization
IS
molecules
occupy
position
H
2
O
in
inner
Helmholtz
forming
molecular
protective
inhibit
O‐induced
reactions.
Meanwhile,
IS,
acting
as
site
,
promotes
de‐solvation
ions,
facilitating
compact
Consequently,
utilization
significantly
extending
cycling
stability
Zn||Zn
Zn||NaV
3
8
⋅
1.5H
full
cell.
This
study
offers
innovative
approach
EDL
regulators
high‐performance
batteries.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: May 11, 2024
Abstract
Designing
next‐generation
alternative
energy
storage
devices
that
feature
high
safety,
low
cost,
and
long
operation
lifespan
is
of
the
utmost
importance
for
future
wide
range
applications.
Aqueous
zinc‐ion
batteries
play
a
vital
part
in
promoting
development
portability,
sustainability,
diversification
rechargeable
battery
systems.
Based
on
theory
electrolyte
solvation
chemistry,
deep
understanding
interaction
between
components
their
impact
chemical
properties
has
achieved
series
research
progress.
Analyzing
shell
or
structure–performance
relationship,
establishing
more
stable
high‐energy
chemistries
are
inevitable
requirements
to
suppress
electrolyte–electrode
interphase
side
reaction
realize
functional
use
batteries.
In
this
critical
review,
attempt
overview
current
comprehension
regarding
structure
zinc
technology.
Advanced
methodology
toward
interactions
cations,
solvent
molecules,
anions
aqueous
electrolytes
general
rules
design
from
atomic
level
summarized.
Methods
viable
modification
then
introduced
overcoming
remained
challenges
transferring
laboratory
results
practical
Possible
direction
with
aim
investigating
ultimate
choice
high‐performance
construction
also
outlined.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 6, 2024
Abstract
The
high
activity
of
water
in
aqueous
electrolyte
causes
drastic
side
reactions
on
the
Zn
anodes,
severely
limiting
electrochemical
performance
zinc
metal
batteries
(AZMBs)
under
extreme
conditions.
Herein,
levulinic
acid
is
developed
as
hydrated
deep
eutectic
solvent
(DES),
to
build
a
novel
non‐flammable
and
cost‐effective
ZnSO
4
‐based
with
triple
regulation
molecules
behavior,
enabling
highly
stable
AZMBs
over
wide
temperature.
In
situ
experiments,
molecular
dynamics
simulations,
spectroscopy
analysis
jointly
reveal
that
DES
capable
comprehensively
lowering
by
simultaneously
controlling
behavior
free,
solvated,
interfacial
within
system.
Consequently,
anodes
exhibit
ultralong
cycling
stability
(4500
h
at
1
mA
cm
−2
/1
),
decent
Coulombic
efficiency
99.39%,
excellent
temperature
tolerance
(−20–50
°C).
Notably,
designed
2.0
Ah
Zn//VOX
pouch
cell
exhibits
recorded
actual
energy
density
37.46
Wh
Kg
−1
95.38
L
whole
level,
remarkable
capacity
retention
81.01%
after
150
cycles,
demonstrating
potential
for
scale‐up
into
real
AZMBs.
This
work
provides
an
in‐depth
understanding
correlation
between
molecule
properties
Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
136(30)
Published: May 7, 2024
Abstract
Regulating
the
electric
double
layer
(EDL)
structure
of
zinc
metal
anode
by
using
electrolyte
additives
is
an
efficient
way
to
suppress
interface
side
reactions
and
facilitate
uniform
deposition.
Nevertheless,
there
are
no
reports
investigating
proactive
design
EDL‐regulating
before
start
experiments.
Herein,
a
functional
group
assembly
strategy
proposed
for
modulating
EDL,
thereby
realizing
long‐lasting
anode.
Specifically,
screening
ten
common
groups,
N,
N‐dimethyl‐1H‐imidazole‐1‐sulfonamide
(IS)
designed
assembling
imidazole
group,
characterized
its
high
adsorption
capability
on
anode,
sulfone
which
exhibits
strong
binding
with
Zn
2+
ions.
Benefiting
from
functionalization
IS
molecules
occupy
position
H
2
O
in
inner
Helmholtz
forming
molecular
protective
inhibit
O‐induced
reactions.
Meanwhile,
IS,
acting
as
site
,
promotes
de‐solvation
ions,
facilitating
compact
Consequently,
utilization
significantly
extending
cycling
stability
Zn||Zn
Zn||NaV
3
8
⋅
1.5H
full
cell.
This
study
offers
innovative
approach
EDL
regulators
high‐performance
batteries.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(30)
Published: May 2, 2024
Abstract
Electrolytes
with
anion‐dominated
solvation
are
promising
candidates
to
achieve
dendrite‐free
and
high‐voltage
potassium
metal
batteries.
However,
it's
challenging
form
anion‐reinforced
solvates
at
low
salt
concentrations.
Herein,
we
construct
an
structure
a
moderate
concentration
of
1.5
M
weakly
coordinated
cosolvent
ethylene
glycol
dibutyl
ether.
The
unique
accelerates
the
desolvation
K
+
,
strengthens
oxidative
stability
4.94
V
facilitates
formation
inorganic‐rich
stable
electrode‐electrolyte
interface.
These
enable
plating/stripping
anode
over
2200
h,
high
capacity
retention
83.0
%
after
150
cycles
cut‐off
voltage
4.5
in
0.67
MnO
2
//K
cells,
even
91.5
30
under
4.7
V.
This
work
provides
insight
into
opens
new
avenues
for
designing
ether‐based
electrolytes.
