Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 11, 2024
Abstract
In
pursuit
of
a
carbon‐neutral
society,
extensive
research
has
been
conducted
on
Zn‐MnO
2
batteries
for
their
application
in
energy
storage
systems.
Most
efforts
have
focused
enhancing
active
material
performance
at
the
lab
scale,
with
less
attention
high‐loaded
electrodes
incorporating
micro‐sized
MnO
practical
application.
Although
thick
are
required
to
improve
density
cells,
unwanted
issues
such
as
poor
wettability,
Mn
2+
dissolution,
and
low
adhesion
should
be
addressed
activate
these
electrodes.
To
overcome
problems,
multifunctional
F‐free
hydrophilic
crosslinked
(HPC)
binder
is
proposed.
Unlike
F‐containing
polyvinylidene
fluoride
non‐crosslinked
HPC
binders
showing
weak
respectively,
exhibits
hydrophilic,
physically
stable,
environmentally
friendly
natures.
Moreover,
due
presence
carboxylate
groups
strong
adsorption
eluted
ions,
migration
anode
side
largely
suppressed.
Benefiting
from
interesting
features,
cell
stable
operation
by
minimizing
accumulation
irreversible
Zn‐vernadite,
owing
maintaining
electrode
integrity
level
13.3
mg
cm
−2
.
This
study
highlights
importance
design,
enabling
use
step
toward
commercialization
Zn–MnO
batteries.
Angewandte Chemie,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 29, 2025
Abstract
Electrochemical
water
splitting
is
a
key
process
in
clean
energy
applications
and
usually
occurs
on
the
surface
of
catalytic
materials.
Here,
we
report
anomalous
partial
splitting,
namely,
deprotonation
behavior
within
lattice
hydrated
materials
modeled
by
Fe
1‐
x
Mg
(C
2
O
4
)
•
2H
(
≈
0.25–0.43),
which
triggers
otherwise
inactive
framework
into
an
excellent
cathode
material
for
potassium
ion
storage.
Density
functional
theory
suggests
that
redox‐active
sites
can
split
crystal
hydroxyls
hydrogens
initial
charge,
rendering
thereafter
reversible
K‐ion
chemistries,
whereas
are
but
stabilize
entire
framework.
Our
experiments
validated
as‐predicted
electrochemical
behavior,
isotopic
tracing
unambiguously
confirmed
hydrogen
evolution
from
water.
This
intriguing
“water
lattice”
phenomenon
may
open
new
path
design
electrolysis‐assisted
electrochemistry.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 28, 2025
Abstract
Lithium
(Li)
metal
batteries
have
garnered
significant
attention
due
to
their
high
energy
density.
However,
the
safety
concerns
associated
with
Li‐metal
need
be
addressed
for
commercial
viability.
Most
research
has
focused
on
of
separators
and
electrolytes,
yet
little
emphasis
is
placed
heat
lithium
metal.
In
an
out‐of‐control
scenario,
combustion
can
release
significantly
more
compared
other
components.
this
study,
a
highly
safe
composite
Li
anode
introduced
fabricated
by
repeatedly
rolling
copper
(Cu)
powder
Electrochemical
tests
show
that
Cu/Li
withstand
up
200
cycles,
far
surpassing
50‐cycle
lifespan
conventional
anodes.
Safety
test
results
indicate
Li/Cu
possesses
self‐extinguishing
properties,
mitigating
risks
batteries.
Thermal
runaway
1.0
Ah
pouch
cell
demonstrate
exhibits
excellent
characteristics,
effectively
inhibiting
thermal
phenomena.
The
proposed
straightforward,
high‐safety
enhance
profile
provide
crucial
technical
support
industrial
application.
Journal of Materials Chemistry A,
Год журнала:
2024,
Номер
12(33), С. 21895 - 21904
Опубликована: Янв. 1, 2024
A
nickel
doping
strategy
has
been
developed
to
prepare
Li
2
Ni
x
Mo
1−
O
4
as
an
anode
for
LIBs.
The
as-prepared
Ni-doped
0.05
0.95
shows
a
stable
lithium
storage
capacity
of
686.6
mA
h
g
−1
,
much
higher
than
365
MoO
anode.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 11, 2024
Abstract
In
pursuit
of
a
carbon‐neutral
society,
extensive
research
has
been
conducted
on
Zn‐MnO
2
batteries
for
their
application
in
energy
storage
systems.
Most
efforts
have
focused
enhancing
active
material
performance
at
the
lab
scale,
with
less
attention
high‐loaded
electrodes
incorporating
micro‐sized
MnO
practical
application.
Although
thick
are
required
to
improve
density
cells,
unwanted
issues
such
as
poor
wettability,
Mn
2+
dissolution,
and
low
adhesion
should
be
addressed
activate
these
electrodes.
To
overcome
problems,
multifunctional
F‐free
hydrophilic
crosslinked
(HPC)
binder
is
proposed.
Unlike
F‐containing
polyvinylidene
fluoride
non‐crosslinked
HPC
binders
showing
weak
respectively,
exhibits
hydrophilic,
physically
stable,
environmentally
friendly
natures.
Moreover,
due
presence
carboxylate
groups
strong
adsorption
eluted
ions,
migration
anode
side
largely
suppressed.
Benefiting
from
interesting
features,
cell
stable
operation
by
minimizing
accumulation
irreversible
Zn‐vernadite,
owing
maintaining
electrode
integrity
level
13.3
mg
cm
−2
.
This
study
highlights
importance
design,
enabling
use
step
toward
commercialization
Zn–MnO
batteries.
