Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(28), P. 17213 - 17221
Published: Jan. 1, 2024
The
ultrathin
size
of
SNVO
with
oxygen
vacancies
and
more
active
sites
improved
the
diffusion
ability
Zn
2+
ions.
exhibits
excellent
cycle
stability,
retaining
94.6%
its
capacity
after
1000
cycles
at
10
A
g
−1
.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 29, 2024
Abstract
Manganese
dioxide
with
high
theoretical
capacity
has
drawn
a
great
deal
of
attention
for
aqueous
zinc‐ion
batteries
(ZIBs).
Nevertheless,
their
sluggish
diffusion
kinetics,
low
electrical
conductivity
and
limited
active
sites
are
still
hindering
the
potential
application
in
batteries.
Herein,
amorphous
MnO
2
nanosheets
abundant
oxygen
vacancies
facilely
prepared
by
using
carboxymethylcellulose
sodium
(CMC)
as
capping
agent.
During
growth
process,
CMC
can
preferentially
attach
to
(003)
facet
guide
its
crystal
morphology.
The
small
expose
edge
sites,
along
surface
vacancies,
facilitate
insertion/extraction
H
+
Zn
2+
ZIBs.
Moreover,
presence
stabilize
Mn
3+
inhibit
Jahn–Teller
effect
preparation
process.
As
result,
CMC‐MnO
based
ZIB
provide
specific
324
mAh
g
−1
at
0.5
A
,
achieve
86.2%
retention
after
long
cycle
test
1000
cycles.
Furthermore,
energy
storage
mechanism
may
be
attributed
/Zn
dissolution/deposition
4
SO
(OH)
6
·nH
O,
irreversible
transformation
vermiculite
during
This
work
open
new
perspectives
development
‐based
cathodes
Advanced Energy Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 5, 2025
Abstract
Aqueous
zinc‐based
batteries
(AZBs)
are
emerging
as
a
compelling
candidate
for
large‐scale
energy
storage
systems
due
to
their
cost‐effectiveness,
environmental
friendliness,
and
inherent
safety.
The
design
development
of
high‐performance
AZBs
have
thus
been
the
focus
considerable
study
efforts;
yet,
certain
properties
electrode
materials
electrolytes
still
limit
development.
Here,
comprehensive
overview
evaluation
current
progress,
existing
limitations,
potential
solutions
achieve
long‐cycle
stability
fast
kinetics
in
is
provided.
Detailed
analyses
structural
design,
electrochemical
behavior,
zinc‐ion
mechanisms
various
presented.
Additionally,
key
issues
research
directions
related
zinc
anodes
selection
systematically
discussed
guide
future
with
superior
performance.
Finally,
this
review
provides
outlook
on
AZBs,
highlighting
challenges
opportunities,
foster
continued
rapid
advancement
broader
practical
applications
field.
Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 15, 2024
Abstract
Prussian
blue
analogues
(PBAs)
have
been
employed
as
host
materials
of
aqueous
zinc‐ion
batteries
(ZIBs),
however,
they
suffer
from
low
capacity
and
poor
cycling
stability
due
to
limited
electron
transfer
the
presence
interstitial
water
in
PBAs.
Herein,
a
vacancy
water‐free
silver
hexacyanoferrate
K
0.95
Ag
3.05
Fe(CN)
6
(AgHCF‐3)
was
synthesized
by
adjusting
ratio
framework.
It
offers
nearly
four
electrons
involving
two
sequential
redox
reactions,
namely,
Fe
3+
/Fe
2+
+
/Ag
0
,
deliver
large
179.6
mAh
g
−1
at
20
mA
with
Coulomb
efficiency
~100
%.
The
Zn//AgHCF‐3
cell
delivers
an
estimated
energy
density
200
Wh
kg
surpassing
reported
PBAs‐based
ZIBs.
formation
process
merits
favorable
rate
performance
AgHCF‐3
(156.4
80.3
%
retention
after
100
cycles).
This
investigation
paves
new
pathways
for
high‐capacity
PBA
cathodes.
Energy & Fuels,
Journal Year:
2024,
Volume and Issue:
38(14), P. 13436 - 13443
Published: July 9, 2024
Aqueous
zinc
ion
batteries
(AZIBs)
are
limited
by
low
energy
density
and
poor
cycle
life.
Electrolyte
engineering
is
one
of
the
most
effective
approaches
to
address
challenges.
In
this
study,
MnSO4
was
selectively
incorporated
into
cost-effective
hybrid
electrolyte
(ZnSO4+K2SO4,
Zn0.5K0.25)
improve
lifespan.
Ex
situ
techniques
XRD
SEM
confirmed
electrodeposition
Mn2+
porous
MnO2
nanosheets
uniformly
covered
Prussian
blue
cathode
surface,
forming
nanoporous//3D
open
framework
interface
with
improved
kinetics.
Furthermore,
also
contributed
capacity,
rate
performance
cycling
stability.
The
noteworthy
a
discharge
capacity
365.4
mAh
g–1
(0.5
A
g–1)
156.7
(3.0
g–1).
retention
reached
remarkable
120%
after
1200
cycles.
Additionally,
full
cell
exhibited
high
299.3
Wh
kg–1.
These
findings
provide
valuable
insights
for
improving
stability
AZIBs.
