Interfacial
pH
fluctuation
is
one
of
the
primary
reasons
for
issues
related
to
Zn
metal
anodes.
Herein,
polar
amphoteric
alanine,
as
a
multifunctional
electrolyte
additive,
designed
regulate
electric
double
layer
(EDL)
and
solvation
structure.
Alanine
with
self-adaptation
capability
can
stabilize
pH.
Due
more
negative
adsorption
energy,
alanine
preferentially
adsorbs
on
surface
repels
water
molecules
within
EDL.
Alanine-enriched
EDL
effectively
shields
tips,
homogenizes
interfacial
field
distribution,
promotes
preferential
deposition
horizontal
flaky
Zn.
limits
contact
between
anode.
additive
decreases
quantity
in
Advanced Materials,
Год журнала:
2024,
Номер
36(38)
Опубликована: Июль 17, 2024
Electrolyte
additives
are
efficient
to
improve
the
performance
of
aqueous
zinc-ion
batteries
(AZIBs),
yet
current
electrolyte
limited
fully
water-soluble
(FWAs)
and
water-insoluble
(WIAs).
Herein,
trace
slightly
(SWAs)
zinc
acetylacetonate
(ZAA)
were
introduced
ZnSO
Journal of the American Chemical Society,
Год журнала:
2024,
Номер
146(45), С. 30998 - 31011
Опубликована: Ноя. 4, 2024
The
primary
cause
of
the
accelerated
battery
failure
in
aqueous
zinc-ion
batteries
(AZIBs)
is
uncontrollable
evolution
zinc
metal-electrolyte
interface.
In
present
research
on
development
multiadditives
to
ameliorate
interfaces,
it
challenging
elucidate
mechanisms
various
components.
Additionally,
synergy
among
additive
molecules
frequently
disregarded,
resulting
combined
efficacy
that
unlikely
surpass
sum
each
component.
this
study,
"molecular
synergistic
effect"
employed,
which
generated
by
two
nonhomologous
acid
ester
(NAE)
additives
double
electrical
layer
microspace.
Specifically,
ethyl
methyl
carbonate
(EMC)
more
inclined
induce
oriented
deposition
metal
means
targeted
adsorption
with
(002)
crystal
plane.
Methyl
acetate
(MA)
likely
enter
solvated
shell
Zn
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 21, 2025
Abstract
Anode‐free
sodium
batteries
(AFSBs)
hold
great
promise
for
high‐density
energy
storage.
However,
high‐voltage
AFSBs,
especially
those
can
stably
cycle
at
a
wide
temperature
range
are
challenging
due
to
the
poor
electrolyte
compatibility
toward
both
cathode
and
anode.
Herein,
AFSBs
with
cycling
ability
in
(−20–60
°C)
realized
first
time
via
sole‐solvent
high‐entropy
based
on
diethylene
glycol
dibutyl
ether
solvent
(D2)
NaPF
6
salt.
The
unique
solvent‐ions
effect
of
strong
anion
interaction
weak
cation
solvation
enables
entropy‐driven
salt
disassociation
high‐concentration
contact
ion
pairs,
thus
simultaneously
forming
stable
anion‐derived
electrode–electrolyte
interphases
Moreover,
liquid
D2
further
extends
extremes
battery.
Consequently,
ampere‐hour
(Ah)‐level
anode‐free
pouch
cells
cyclability
−20–60
°C
realized.
Impressively,
cell
achieves
leadingly
high
cell‐level
density
209
Wh
kg
−1
capacity
retention
83.1%
after
100
cycles
25
°C.
This
work
provides
inspirations
designing
advanced
electrolytes
practical
AFSBs.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 2, 2025
Abstract
Interface
issues
such
as
parasitic
reactions
and
dendrite
growth
have
long
been
major
obstacles
hindering
the
longevity
of
aqueous
zinc‐ion
batteries
(AZIBs).
The
quest
for
more
effective
strategies
to
regulate
highly
active
interface
remains
a
focal
point
in
AZIBs.
Herein,
novel
interface‐targeted
additive
N‐Acetoacetylmorpholine
(NHM)
is
introduced,
by
lowering
interfacial
tension
modifying
electrical
double
layer,
improve
performance
This
reconfiguration
results
H
2
O‐poor
inner
Helmholtz
plane,
which
suppresses
reactions,
accelerates
kinetics,
fosters
uniform
zinc
deposition.
Consequently,
anode
demonstrates
impressive
cycling
durability,
exceeding
3800
h
plating/stripping
process
400
steady
cycle
at
high
depth
discharge
(DOD)
60%.
Zn/NH
4
V
O
10
full
cell
superior
performance,
achieving
80%
capacity
retention
after
1500
cycles.
Moreover,
pouch
cells
with
highloading
cathodes
(13.5
mg
cm
−2
)
can
maintain
70%
300
cycles
0.5
A
g
−1
.
controlled
N/P
ratio
(2.63:1)
shows
excellent
stability
130
These
findings
provide
valuable
insights
into
design
offer
promising
enhancing
practicality
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 20, 2025
Aqueous
zinc
ion
batteries
(AZIBs)
face
challenges
due
to
the
limited
interface
stability
of
Zn
anode,
which
includes
uncontrolled
hydrogen
evolution
reaction
(HER)
and
excessive
dendrite
growth.
In
this
study,
a
natural
binary
additive
composed
saponin
anisaldehyde
is
introduced
create
stable
interfacial
adsorption
layer
for
protection
via
reshaping
electric
double
(EDL)
structure.
Saponin
with
rich
hydroxyl
carboxyl
groups
serves
as
"anchor
points",
promoting
through
intermolecular
bonding.
Meanwhile,
anisaldehyde,
unique
aldehyde
group,
enhances
HER
suppression
by
preferentially
facilitating
electrocatalytic
coupling
H*
in
EDL,
leading
formation
robust
inorganic
solid
electrolyte
interphase
that
prevents
formation,
structural
during
deposition
process
verified.
As
result,
Zn||Zn
symmetric
cells
present
an
ultra-long
cycling
lifespan
3
400
h
at
1
mA
cm-2
700
10
cm-2.
Even
current
density
20
cm-2,
demonstrate
reversible
operations
450
h.
Furthermore,
Zn-ion
hybrid
capacitors
exhibit
remarkable
100
000
cycles.
This
work
presents
simple
synergetic
strategy
enhance
anode/electrolyte
stability,
highlighting
its
potential
anode
high-performance
AZIBs.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 27, 2025
Abstract
Hydrogel
electrolytes
are
favored
for
flexible
zinc‐ion
batteries
(FZIBs)
due
to
their
biocompatibility.
Their
application
progress,
however,
is
severely
restricted
by
the
poor
water
retention
and
low
Zn
2+
transference
number
(t
).
Herein,
one
composite
polymer
electrolyte
(CPE)
prepared
introducing
Prussian
blues
(PBs)
as
multifunctional
fillers
in
polyvinyl
alcohol
(PVA)
matrix
enhance
t
.
Experimental
theoretical
characterizations
confirm
that
PB
filler
can
alter
migration
mechanism
trap
of
CPE.
PBs
active
provide
extra
zinc
ions
unique
3D
ion
diffusion
channels.
Moreover,
metal
centers
framework
function
Lewis
acid
sites
have
good
affinity
with
anions
salt,
facilitating
dissociation
salt.
Additionally,
absorb
coordination
water,
enhancing
anti‐dehydration
capability
ionic
conductivity
hydrogel
electrolytes.
Consequently,
P‐15/Zn‐15
shows
high
16.3
mS
cm⁻
1
0.63.
The
Zn||Zn
symmetric
cells
stably
operate
600
h
at
50
°C.
Zn||P‐15/Zn‐15||
NaV
3
O
8
·1.5H
2
full
cell
exhibits
excellent
cycling
performance
cycles.
Zn
metal
anodes
experience
dendritic
growth
and
hydrogen
evolution
reactions
(HER)
in
aqueous
batteries.
Herein,
we
propose
an
interface
regulation
strategy
with
a
trace
(1.4
×
10
Abstract
Disordered
electrodeposition
of
Zn
2+
resulted
in
serious
dendrite
and
hydrogen
evolution
reactions,
greatly
decreasing
the
energy
efficiency
durability
aqueous
zinc
ion
batteries
(AZIBs).
Herein,
sodium
2‐mercaptoethanesulfonate
(MSN)
is
proposed
as
a
new
additive
to
achieve
induced
directional
on
(101)
crystal
surface
form
dense
uniform
metal
layer
via
cooperative
effect
sulfhydryl
sulfonic
acid
groups.
Different
from
reported
additives,
MSN
molecules
promote
rapid
formation
adsorption
layer,
which
accelerates
its
directed
migration
rate
orderly
nucleation
process,
achieving
eliminated
dendrites
overpotential,
far
superior
additives.
The
MSN‐introduced
Zn||Zn
symmetric
battery
displays
amazing
stably
cycled
for
more
than
3500
h
at
2
mA
cm
−2
@
mAh
,
over
1
000
even
under
harsh
conditions
(5
5
).
Furthermore,
Zn||δ‐MnO
coin
offers
high
capacity
201.5
g
−1
low
recession
1%
during
800
cycles
A
higher
that
blank
sample
(121.3
56.1%),
respectively,
fully
demonstrating
extraordinary
advantages
contributions
molecules.
