Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 10, 2024
Abstract
2D
layered
materials,
combined
with
ion
intercalation
and
diffusion
storage
mechanisms,
are
among
the
most
promising
materials
for
high‐performance
rechargeable
batteries
(especially
NH
4
+
systems).
However,
slow
interlayer
dynamics
hinder
their
development.
Most
of
research
focuses
on
mechanism
hydrogen
bonds,
ignoring
special
structure
function
interlayer.
In
this
study,
Mg(H
2
O)
6
2+
strategy
MoS
is
proposed
weak
constraint
sulfur
vacancy
co‐constructed.
It
found
that
ions
increased
spacing,
effectively
space,
reduced
;
Meanwhile,
reduces
activity
number
coordination
sites.
This
promotes
kinetics
.
aspect
concern
has
been
almost
ignored
in
previous
studies.
work
advances
to
provide
insights
a
fundamental
understanding
behavior
structural
features,
paving
way
development
sustainable
energy
systems.
Chemical Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
A
Co-MOF
with
(O
4
–Co–N
2
)
sites
was
integrated
Ti
3
C
T
x
MXene
carbonized
nanofibers,
achieving
980
F
g
−1
at
1
and
91.1%
retention
after
16
000
cycles.
Further,
the
device
delivered
41.5
mW
h
kg
energy
density.
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 3, 2024
Doping
sodium
ions
in
NH
4
V
O
10
interlayer
reduces
the
deammoniation.
The
NaNVO@CC
has
ultra-high
specific
capacity
and
excellent
cycling
stability.
Systematic
ex
situ
characterization
experiments
confirm
reversible
+
(de)intercalation.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 11, 2024
Abstract
High‐safety
potassium‐ion
batteries
(HPIBs)
are
highly
intriguing
owing
to
their
green
energy,
low
cost,
high
voltage,
noncombustible,
and
simple
assembly.
However,
most
high‐voltage
HPIBs
use
water‐in‐salt
electrolytes
(WISE),
which
lead
several
problems,
such
as
a
viscosity,
significantly
reduces
the
performance
increases
cost
of
HPIBs,
thus
impeding
development.
Unfortunately,
studies
regarding
HPIB
remain
limited,
further
limiting
development
HPIBs.
Herein,
co‐solvent
engineering
electrolyte
(4.0
m
KOTf
in
mixture
propylene
carbonate
(PC)
H
2
O
with
volume
ratio
5.0:1.0)
featuring
low‐cost
(1/4
WISE)
high‐performance
(45.43
mS
cm
−1
)
characteristics
is
proposed,
not
only
achieves
wide
electrochemical
stability
window
by
reducing
activity
O,
but
also
adjusts
solvation
structure
K
+
.
Consequently,
assembled
via
demonstrated
energy
density
88.05
Wh
kg
,
sufficiently
operated
at
rates
0.50–10.0
A
g
over
temperature
range
(−25–50
°C).
This
study
provides
promising
means
for
developing
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 12, 2024
Abstract
A
critical
challenge
for
pseudocapacitors
applications
is
the
rapid
capacitance
fading
under
extreme
environments,
which
originates
from
sluggish
diffusion
kinetics
of
inorganic
materials
and
tortuous
ionic
channels
in
conventional
bulk
electrodes.
Herein,
a
novel
3D‐printed
all‐organic
proton
pseudocapacitor
(composed
2,6‐diaminoanthraquinone
(DQ)‐based
anode
polyaniline‐based
cathode)
with
chemical
structural
stability
developed,
exhibits
an
extraordinary
rate
performance
cycle
ultralow
temperature.
The
DQ
molecules
are
anchored
on
reduced
graphene
oxide,
enhances
electronic
conductivity
stability.
Theoretical
calculation
spectroscopic
characterization
reveal
that
two‐electron
transfer
process
involves
quinone/hydroquinone
transition.
Exploiting
synergy
fast
reaction
organic
efficient
ion
paths
3D
architecture,
achieves
impressive
areal
10.14
F
cm
−2
at
high
mass
loading
(28.73
mg
).
shows
stable
cycling
−80
°C
releases
energy
density
0.76
mWh
−60
°C.
This
work
instructive
development
competitive
ultra‐low
temperature
storage
devices
via
integrating
architectural
electrode
designs.
National Science Review,
Journal Year:
2024,
Volume and Issue:
12(2)
Published: Nov. 28, 2024
ABSTRACT
Aqueous
ammonium
ion
batteries
(AAIBs)
have
attracted
considerable
attention
due
to
their
high
safety
and
rapid
diffusion
kinetics.
Unlike
spherical
metal
ions,
NH4+
forms
hydrogen
bonds
with
host
materials,
leading
a
unique
storage
mechanism.
A
variety
of
electrode
materials
been
proposed
for
AAIBs,
but
performance
often
falls
short
in
terms
future
energy
needs.
Hence,
there
is
critical
need
design
develop
advanced
AAIBs.
2D
tunable
interlayer
spacing,
remarkable
interfacial
chemistry
abundant
surface
functional
groups,
are
an
ideal
choice
storage.
This
review
highlights
the
latest
research
on
providing
insights
into
working
principles,
mechanisms
control
strategies
designing
high-performance
Furthermore,
summary
perspectives
development
AAIBs
provided,
aiming
promote
advancement
