Abstract
Aqueous
Zn‐ion
batteries
(AZIBs)
are
considered
a
promising
candidate
for
large‐scale
energy
storage
application
owing
to
their
high
capacity,
good
safety,
low
cost,
and
environmental
friendliness.
However,
the
presence
of
active
water
leads
issues
such
as
corrosion,
dendrite
growth
hydrogen
evolution
reaction
on
Zn
metal
anodes,
severely
limiting
cycle
lifetime
reversibility
AZIBs.
To
address
these
challenges,
this
study
introduces
simple
drop‐casting
method
deposit
composite
protective
coating
2D
titanium
carbide
(Ti
3
C
2
T
x
)
MXene
polyethyleneimine
(PEI)
surface
foil,
i.e.,
MXene/PEI@Zn.
The
MXene/PEI
contains
polar
groups
−OH
that
can
regulate
deposition.
Additionally,
prevent
from
directly
contacting
surface.
results
show
MXene/PEI@Zn
anodes
over
2600
1100
h
at
corresponding
current
density
1
5
mA
cm
−2
(Areal
capacity:
mAh
).
When
paired
with
V
O
·1.6H
cathode,
it
contributes
evidently
improved
full‐cell
performance
85%
capacity
retention
after
4800
cycles
A
g
−1
.
This
work
provides
new
insights
into
practical
design
highly
reversible
anodes.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 23, 2025
Abstract
Rechargeable
aqueous
zinc‐ion
batteries
(ZIBs)
are
expected
to
be
the
next
generation
of
low‐cost,
safe,
and
high‐energy‐density
energy
storage
systems.
However,
undesirable
electrode/electrolyte
interfacial
(EEI)
side
reactions
anode
dissolution
cathode
materials
during
cycling
ZIBs
have
led
drastic
degradation
battery
performance.
Here,
a
phosphated
electrolyte
is
developed
facilitate
simultaneous
formation
Zn
3
(PO
4
)
2
‐rich
solid
interphase
(SEI)
cathode/electrolyte
interface
(CEI)
as
well
improved
solvent
chemistry.
The
in
situ
generated
robust
EEI
induce
uniform
deposition
zinc
inhibit
solvation
material
achieve
high
performance
ZIBs.
chemistry
promises
stable
at
low
temperatures
with
an
ultra‐long
life
600
h
−10
°C.
Moreover,
pouch
cell
exhibits
excellent
no
significant
capacity
after
150
cycles.
In
addition,
anode‐free
performances
long
lifetime
200
This
study
provides
simple
effective
strategy
for
construction
ACS Sustainable Chemistry & Engineering,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 3, 2025
Aqueous
zinc-ion
batteries
(AZIBs)
have
gained
increasing
attention
for
grid
energy
storage
systems.
However,
ensuring
the
long-term
reversible
operation
of
zinc
anode
remains
a
challenge
due
to
dendrite
growth
and
adverse
side
reactions
during
charge
discharge
cycles.
This
study
investigates
use
d-pantothenic
acid
(D-PA)
as
an
additive
in
2
M
ZnSO4
aqueous
electrolyte
enhance
cycling
stability
AZIBs.
Experimental
results
theoretical
calculations
demonstrate
that
D-PA
reshapes
solvation
structure
Zn2+
by
partially
replacing
coordinated
water
molecules,
transport.
Furthermore,
adsorbs
on
active
sites
anode,
surface
overpotential
(|ηs|),
reducing
nucleation
barrier,
decreasing
critical
nucleus
size
(rcrit),
thus
uniform
deposition.
dual
role
modifying
shell
regulating
effectively
mitigates
suppresses
reactions,
resulting
excellent
anode.
Consequently,
Zn||Zn
symmetrical
cells
with
maintain
stable
over
2000
h
at
1.0
mA
cm–2
cm–2,
nearly
4000
4.0
cm–2.
Additionally,
Zn||Cu
asymmetric
exhibit
300
cycles
0.5
average
Coulombic
efficiency
99.29%.
Moreover,
Zn||V2O5
full
containing
performance
1000
current
density
1
A
g–1,
maintaining
high
capacity
retention.
Specifically,
initial
cell
is
around
161.17
approximately
62.7%
retention
after
Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 3, 2025
Abstract
An
all‐aqueous
membrane‐free
Zn–Mn
redox
flow
battery
utilizing
deposition
chemistry
can
be
an
excellent
alternative
to
conventional
aqueous
batteries
for
reducing
costs
and
improving
stability.
In
the
neutral/mildly
acidic
electrolyte
environment
of
batteries,
anode
still
suffers
from
issues
such
as
zinc
dendrite
growth
corrosion,
while
cathode
struggles
with
poor
reversibility.
The
same
arise
in
that
use
a
combined
electrolyte,
where
both
anolyte
catholyte
are
combined.
Therefore,
it
is
possible
simultaneously
address
by
using
single
additive
electrolyte.
Here,
aspartic
acid
introduced
universal
battery.
bonded
Zn
surface,
2+
ions,
Mn
resolving
almost
all
side
reactions.
Impressively,
demonstrated
remarkable
cycling
stability
300
cycles
at
areal
capacity
10
mAh
cm
−2
.
A
new
efficient
strategy
proposed
controlling
overall
reactions
simple
addition
integrated
this
report.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 9, 2024
Abstract
Electrochemical
nitrate
reduction
reaction
(NO
3
−
RR)
provides
a
sustainable
and
efficient
way
to
producing
ammonia
at
ambient
condition
denitrifying
wastewater.
However,
NO
RR
is
still
confronted
with
some
barriers
present,
because
of
the
sluggish
kinetics
competitive
hydrogen
evolution
(HER).
Particularly,
it
requires
highly
robust
selective
electrocatalysts,
which
steers
complex
multistep
reactions
toward
process.
Among
various
Co‐based
electrocatalysts
demonstrate
rapid
kinetics,
steady
catalytic
performance,
suppressive
impact
on
HER
for
RR,
attracting
more
attention.
In
this
review,
focused
Cobalt‐based
design
corresponding
strategies
are
summarized.
detail,
these
can
be
concisely
classified
into
five
categories,
including
oxides
hydroxides,
alloys,
metal,
heteroatom‐doped
materials,
metal
organic
frameworks
derivatives.
Each
category
extensively
discussed,
its
concepts
ideas
clearly
conveyed
through
appropriate
illustrations
figures.
Finally,
scientific
technological
challenges
as
well
promising
constructing
system
in
future
discussed.
It
expected
that
review
provide
valuable
insights
guidance
rational
ultimately
advancing
their
applications
industrial
scenario
high
current
density,
stability,
energy
efficiency.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 12, 2025
Abstract
Despite
the
conspicuous
merits
of
Zn
metal
anodes,
commercialization
anode‐based
electrochemical
energy
storage
devices
is
still
constrained
by
uncontrollable
dendrite
growth
and
serious
parasitic
reactions.
Herein,
an
innovative
strategy
employing
kosmotropic
anions‐intensified
proline
additive
to
regulate
2+
solvation
structure
manipulate
deposition
interface,
thus
achieving
highly
stable
proposed.
The
key
this
lies
in
ingeniously
utilizing
SO
4
2−
anions
enhance
affinity
adsorption
layer
on
anodes
weaken
.
Consequently,
proline‐containing
ZnSO
(ZnSO
‐proline)
electrolyte
deliver
a
remarkable
lifespan
over
2600
h
at
1.0
mA
cm
−2
mAh
Even
under
harsh
plating/stripping
condition
(10
10
),
‐proline
stably
operate
for
650
h.
Meanwhile,
Coulombic
efficiency
designed
as
high
99.9%
1100
cycles.
endows
Zn‐ion
batteries
hybrid
capacitors
with
notably
optimized
long‐term
cycling
stability.
This
work
expected
be
immediate
benefit
design
low‐cost
Zn‐based
systems
ultra‐long
lifespan.
Abstract
Zinc
ion
hybrid
capacitors
(ZIHCs)
show
promise
for
large‐scale
energy
storage
because
of
their
low
cost,
highly
intrinsic
safety,
and
eco‐friendliness.
However,
density
has
been
limited
by
the
lack
advanced
cathodes.
Herein,
a
high‐capacity
cathode
material
named
N‐doped
porous
carbon
(CFeN‐2)
is
introduced
ZIHCs.
CFeN‐2,
synthesized
through
annealing
coal
pitch
with
FeCl
3
·6H
2
O
as
catalytic
activator
melamine
nitrogen
source,
exhibits
significant
N
content
(10.95
wt%),
large
surface
area
(1037.66
m
g
−1
),
abundant
lattice
defects
ultrahigh
microporosity.
These
characteristics,
validated
theoretical
simulations
experimental
tests,
enable
dual‐ion
mechanism
involving
Zn
2+
ions
CF
SO
−
anions
CFeN‐2.
When
used
in
ZIHCs,
CFeN‐2
achieves
high‐energy
142.5
W
h
kg
high‐power
9500.1
.
Furthermore,
using
ZIHCs
demonstrate
exceptional
performance
77%
capacity
retention
nearly
100%
coulombic
efficiency
after
10
000
cycles
at
A
,
showcasing
substantially
superior
to
current
This
study
offers
pathway
developing
cathodes
derived
from
ZIHC
applications.