Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(40)
Published: Aug. 29, 2024
Abstract
Aqueous
Zn/V
2
O
5
batteries
are
featured
for
high
safety,
low
cost,
and
environmental
compatibility.
However,
complex
electrode
components
in
real
impede
the
fundamental
understanding
of
phase
transition
processes
intercalation
chemistry.
Here,
model
based
on
V
film
electrodes
which
show
similar
electrochemical
behaviors
as
ones
built.
Advanced
surface
science
characterizations
allow
to
identify
trajectories
Zn
2+
,
H
O,
+
during
processes.
Protons
serve
vanguard
intercalated
species,
facilitating
subsequent
O.
The
increase
capacity
activation
process
is
mainly
due
from
more
active
·nH
structure
caused
by
partial
irreversible
deintercalation
rather
than
sites
induced
grain
refinement
materials.
Eventually,
accumulation
species
within
oxide
results
formation
inactive
(Zn
3
(OH)
7
·2H
O)
structure.
established
chemistry
helps
design
high‐performance
Nano-Micro Letters,
Journal Year:
2025,
Volume and Issue:
17(1)
Published: Jan. 27, 2025
Abstract
Compared
with
Zn
2+
,
the
current
mainly
reported
charge
carrier
for
zinc
hybrid
capacitors,
small-hydrated-sized
and
light-weight
NH
4
+
is
expected
as
a
better
one
to
mediate
cathodic
interfacial
electrochemical
behaviors,
yet
has
not
been
unraveled.
Here
we
propose
an
-modulated
cationic
solvation
strategy
optimize
spatial
distribution
achieve
dynamic
/NH
co-storage
boosting
Zinc
capacitors.
Owing
hierarchical
solvated
structure
in
Zn(CF
3
SO
)
2
–NH
CF
electrolyte,
high-reactive
small-hydrate-sized
(H
O)
induce
Helmholtz
plane
reconfiguration,
thus
effectively
enhancing
density
activate
20%
capacity
enhancement.
Furthermore,
adsorbed
hydrated
ions
afford
high-kinetics
ultrastable
C‧‧‧H
(NH
storage
process
due
much
lower
desolvation
energy
barrier
compared
heavy
rigid
Zn(H
6
(5.81
vs.
14.90
eV).
Consequently,
physical
uptake
multielectron
redox
of
carbon
cathode
enable
capacitor
deliver
high
(240
mAh
g
−1
at
0.5
A
),
large-current
tolerance
(130
50
ultralong
lifespan
(400,000
cycles).
This
study
gives
new
insights
into
design
cathode–electrolyte
interfaces
toward
advanced
zinc-based
storage.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(46)
Published: July 17, 2024
Abstract
VO
2
is
considered
as
one
of
the
most
likely
cathode
materials
to
be
commercialized
for
large‐scale
application
in
AZIBs
and
at
forefront
aqueous
batteries,
but
its
lower
electrical
conductivity,
slower
Zn
2+
mobility,
well
voltage
degradation
structural
collapse
due
vanadium
solubilization
have
limited
further
development.
Herein,
a
Co‐substitution
engineering
strategy
proposed,
which
introducing
heteroatom
Co
doping
substitution
oxygen
vacancy
stabilize
structure
promote
ionic/electronic
leading
an
enhanced
ion
storage
behavior.
The
Co‐substituted
(Co
0.03
V
0.97
O
2‐x
,
denote
v
‐CoVO)
reported
this
paper,
inhibits
dissolution
AZIBs,
even
acetionitrile
system.
DFT
calculations
show
that
‐CoVO
has
more
stable
faster
electronic/ionic
conductivity.
Consequently,
‐CoVO||ZnOTF||Zn
battery
(aqueous)
can
deliver
remarkable
capacity
475
mAh
g
−1
0.2
A
with
99.1%
retention
after
200
cycles,
still
maintains
excellent
cycling
stability
‐CoVO||ZnTFSI||Zn
(acetionitrile
electrolyte)
0.1
.
In
addition,
compared
charge
transfer
resistance
iffusion
coefficient
are
significantly
enhanced.
This
work
broadens
scope
research
high
performance
ZIBs.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 4, 2024
Abstract
Aqueous
zinc–ion
batteries
(AZIBs)
hold
significant
promise
for
large‐scale
energy
storage
due
to
their
inherent
safety
and
environmental
benefits.
However,
practical
application
is
often
limited
by
rapid
capacity
loss
from
the
dissolution
of
active
cathode
materials.
Here,
an
effective
strategy
proposed
suppress
component
doping
high‐valence
Sn
4+
in
V
3
O
7
·H
2
(Sn–V
O)
material
achieve
highly
stable
AZIBs.
An
impressive
retention
89.3%
over
6000
cycles
at
5.0
A
g
−1
a
high
specific
408
mAh
0.1
are
attained.
The
thermodynamically
lowers
formation
Sn–V
increases
VO
+
ions,
thereby
reinforcing
structural
stability
suppressing
vanadium
dissolution.
Besides,
enhances
electrical
conductivity
broadens
Zn
2+
diffusion
channels,
significantly
accelerating
intercalation
deintercalation
kinetics.
experimental
results
integrated
with
mechanism
analysis
density
functional
theory
calculation
elucidate
dynamics
V‐based
cathodes,
employ
X‐ray
absorption
spectroscopy
reveal
local
electronic
structures
chemical
valences
during
charge/discharge
processes,
providing
comprehensive
insights
into
high‐performance
materials
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(51)
Published: Aug. 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
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 17, 2024
Abstract
Rechargeable
magnesium‐ion
batteries
(RMBs)
have
garnered
increasing
research
interest
in
the
field
of
post‐lithium‐ion
battery
technologies
owing
to
their
potential
for
high
energy
density,
enhanced
safety,
cost‐effectiveness,
and
material
resourcefulness.
Despite
substantial
advancements
RMB
research,
a
number
intrinsic
challenges
remain
unresolved,
such
as
strong
Coulombic
interaction
between
Mg
2+
host
crystal
structure
cathode
materials,
sluggish
diffusion
kinetic,
poor
electrolyte
compatibility,
formation
passivation
films
on
anode
interface.
These
issues
hinder
commercial
applications
RMBs.
This
review
provides
comprehensive
overview
progress
key
areas
including
representative
storage
cathode/anode
materials
conducting
electrolytes.
Additionally,
recent
developments
electrode‐electrolyte
interface
regulations
pouch‐cell
fabrication
are
outlined,
highlighting
current
implementation
effective
solutions.
Finally,
future
directions
proposed
guide
development
high‐performance
RMBs
with
practical
applications.
Angewandte Chemie,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 4, 2025
Abstract
The
crosstalk
of
transition
metal
ions
between
the
oxide
cathode
and
Zn
anode
restricts
practical
applications
aqueous
zinc‐ion
batteries
(ZIBs).
Herein,
we
propose
a
decoupled
electrolyte
(DCE)
consisting
nonaqueous‐phase
(N‐phase)
anolyte
an
aqueous‐phase
(A‐phase)
catholyte
to
prevent
Mn
2+
,
thus
extending
lifespan
MnO
2
‐based
ZIBs.
Experimental
measurements
theoretical
modelling
verify
that
trimethyl
phosphate
(TMP)
not
only
synergistically
works
with
NH
4
Cl
in
N‐phase
enable
fast
conduction
while
blocking
diffusion
toward
anode,
but
also
modifies
solvation
structure
suppress
dendrite
formation
corrosion
on
anode.
Meanwhile,
A‐phase
effectively
accelerates
reaction
kinetics.
as‐developed
Zn|DCE|MnO
cell
delivers
80.13
%
capacity
retention
after
900
cycles
at
0.5
A
g
−1
.
This
approach
is
applicable
for
other
cathode‐based
ZIBs,
thereby
opening
new
avenue
developing
ultrastable
