ACS Nano,
Год журнала:
2024,
Номер
18(42), С. 29189 - 29202
Опубликована: Окт. 8, 2024
To
meet
the
demand
for
longer
driving
ranges
and
shorter
charging
times
of
power
equipment
in
electric
vehicles,
engineering
fast-charging
batteries
with
exceptional
capacity
extended
lifespan
is
highly
desired.
In
this
work,
we
have
developed
a
stable
ultrafast-charging
high-energy-density
all-nanofibrous
covalent
organic
framework
(COF)
battery
(ANCB)
by
designing
series
imine-based
nanofibrous
COFs
cathode,
separator,
anode
Schiff-base
reactions.
Hierarchical
porous
structures
enabled
were
constructed
enhanced
kinetics.
Rational
chemical
been
designed
materials,
respectively.
A
COF
(AA-COF)
bipolarization
active
sites
wider
layer
spacing
has
using
triphenylamine
group
cathode
to
achieve
high
voltage
limits
fast
mass
transport.
For
anode,
(TT-COF)
abundant
polar
groups,
sites,
homogenized
Li+
flux
based
on
imine,
triazine,
benzene
synthesized
ensure
performance.
As
COF-based
electrospun
polyacrylonitrile
(PAN)
composite
separator
(BB-COF/PAN)
hierarchical
pores
high-temperature
stability
prepared
take
up
more
electrolyte,
promote
transport,
enable
as
operation
possible.
The
as-assembled
ANCB
delivers
energy
density
517
Wh
kg–1,
9771
W
kg–1
only
56
s
time,
operational
potential,
accompanied
0.56%
fading
rate
per
cycle
at
5
g–1
100
°C.
This
features
an
ultralong
distinguished
performance,
making
it
promising
candidate
powering
vehicles.
Abstract
Engineering
a
catalytic
membrane
capable
of
efficiently
removing
emerging
organic
microcontaminants
under
ultrahigh
flux
conditions
is
significance
for
water
purification.
Herein,
drawing
inspiration
from
the
functional
attributes
lymphatic
vessels
involved
in
immunosurveillance
and
fluid
transport
with
minimal
energy
consumption,
novel
hierarchical
porous
engineered.
This
membrane,
based
on
an
innovative
nitrogen‐rich
conjugated
microporous
polymer
(polytripheneamine,
PTPA),
synthesized
using
electrospinning
coupled
situ
polymerization
approach.
The
resulting
bioinspired
channels
comprises
thin
layer
(≈1.7
µm)
crosslinked
PTPA
nanoparticles
covering
interconnected
electrospun
nanofibers.
unique
design
creates
intrinsic
angstrom‐confined
system
activating
peroxymonosulfate
(PMS)
to
generate
98.7%
singlet
oxygen
(
1
O
2
),
enabling
durable
highly
efficient
degradation
microcontaminants.
Additionally,
presence
mesoporous
structure
between
macroporous
within
interwoven
nanofibers
enhances
mass
transfer
efficiency
facilitates
high
rates.
Notably,
prepared
demonstrates
enduring
high‐efficiency
performance
superior
permeance
(>95%
>2500
L
m
−2
h
−1
bar
)
sustained
over
100
h.
work
introduces
pathway
high‐performance
membranes
removal
Energy & Environmental Science,
Год журнала:
2024,
Номер
17(15), С. 5461 - 5467
Опубликована: Янв. 1, 2024
A
separator,
which
can
sustainably
release
Mg(NO
3
)
2
into
the
electrolyte
to
ensure
dendrite-free
and
long
cycling
of
lithium
metal
batteries,
is
reported.
This
method
simple
efficient.
Potassium
metal
batteries
(KMBs)
hold
promise
for
stationary
energy
storage
with
certain
cost
and
resource
merits.
Nevertheless,
their
practicability
is
greatly
handicapped
by
dendrite-related
anodes,
the
target
design
of
specialized
separators
to
boost
anode
safety
in
its
nascent
stage.
Here,
we
develop
a
thermally
robust
biopolymeric
separator
customized
via
solvent-exchange
amino-siloxane
decoration
strategy
render
durable
safe
KMBs.
Through
experimental
investigation
theoretical
computation,
reveal
that
optimized
porosity
surface
functionalization
could
manage
ion
transport
interfacial
chemistry,
thereby
enabling
efficient
K+
diffusion
favorable
solid
electrolyte
interphase
achieve
prolonged
cycling
stability
(over
3000
h).
The
thus-assembled
full
cell
retains
80%
initial
capacity
after
400
cycles
at
0.5
A
g–1.
heat-proof
property
designed
further
demonstrated.
Our
separator,
affording
multifunctional
features,
provides
an
appealing
solution
circumvent
instability
issues
associated
potassium
batteries.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 3, 2025
Abstract
As
the
global
energy
structure
transforms
and
renewable
rapidly
develops,
rechargeable
batteries
are
increasingly
focus
on
high
density,
rapid
charge/discharge
rates,
enhanced
safety
performance,
particularly
in
extreme
environments.
Lithium
metal
(LMBs)
have
emerged
as
a
significant
research
area
recent
years
owing
to
capacity
low
electrochemical
potential
of
lithium
(Li).
However,
challenges,
uncontrolled
Li
dendrite
growth,
unstable
solid
electrolyte
interface
separator
puncture/interface
incompatibility,
greatly
impact
battery
life
lead
failure,
thus
impeding
commercialization.
This
review
presents
thorough
analysis
key
challenges
facing
stable
LMBs
from
multiple
perspectives,
alongside
regulatory
strategies.
The
methods
include
anode,
interface,
solid/liquid
electrolytes,
separators,
pressure
artificial
intelligence.
An
in‐depth
discussion
operational
mechanism,
advantages/drawbacks
is
provided.
Additionally,
it
offers
succinct
overview
anticipated
future
trends
challenges.
A
comprehensive
numerous
documents
studies
has
been
conducted
summarize
number
published
papers
unique
characteristics
corresponding
provides
valuable
recommendations
for
practical
application
other
high‐energy‐density
(Sodium,
Potassium,
Magnesium,
Zinc),
thereby
contributing
effectively
implementation
national
strategic
planning
new
sector.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 29, 2024
Abstract
The
introduction
of
an
electrocatalyst
to
accelerate
the
kinetics
lithium
polysulfides
(LiPSs)
reduction/oxidation
is
beneficial
enhance
capacity
sulfur
cathode
and
inhibit
shuttling
effect
LiPSs.
However,
current
electrocatalysts
mainly
focus
on
metal‐based
active
sites
reduce
reaction
barriers,
there
remains
a
great
challenge
in
developing
light‐weighted
metal‐free
catalysts.
In
this
work,
1D
graphitic
carbon
nitride
nanorods
(g‐C
3
N
4
‐NRs)
with
carboxyl
(─COOH)
acylamide
(─CONH
2
)
functional
groups
are
designed
as
for
lithium‐sulfur
batteries
transport
Li
+
conversion
density
theory
(DFT)
calculations
prove
that
existence
─COOH
group
realizes
adsorption
LiPSs
accelerates
,
while
─CONH
energy
barrier
S
8
S.
addition,
situ
UV–vis
nucleation/dissociation
experiments
also
verify
g‐C
‐NRs
achieve
rapid
transformation
under
synergistic
action
groups.
Consequently,
based
‐NRs‐PP
separator
at
specific
700.3
mAh
g
−1
after
70
cycles
0.2
C,
0
°C.
This
work
provides
new
strategy
breaking
through
bottleneck
catalysts
high‐performance
batteries.
Macromolecular Rapid Communications,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 11, 2025
Covalent
organic
framework
(COF)-derived
carbon
materials
seamlessly
inherit
the
periodic
porous
architecture
and
high
specific
surface
area
of
their
precursors,
while
simultaneously
enabling
confinement
nanoparticles
in
designated
regions.
This
unique
feature
mitigates
agglomeration,
enhances
intrinsic
properties,
imparts
novel
functionalities
to
resulting
materials.
Consequently,
COF-derived
have
garnered
significant
attention
across
diverse
fields,
including
energy,
environmental
remediation,
biomedical
applications.
Despite
this
burgeoning
interest,
a
comprehensive
review
encompassing
synthesis,
classification,
multifaceted
applications
these
remains
scarce.
In
context,
state-of-the-art
advancements
are
reviewed
systematically
here.
It
categorizes
materials,
delineates
primary
synthesis
strategies,
highlights
versatile
catalysis,
electrochemical
energy
storage,
water
treatment,
sensing,
cancer
therapy.
Lastly,
fresh
insights
into
challenges
future
prospects
paving
way
for
expanded
exploration
utilization
offered
