Cyclooctatetrathiophene Based MOF-Derived Porous Materials as High- Performance Anode for Lithium-Ion Batteries
Abstract
Extensive
research
on
anodes
with
higher
capacity
than
carbon
materials
is
driven
by
the
demand
for
lithium-ion
batteries
energy
density.
But
cycling
stability
of
high-capacity
hindered
structural
collapse.
Metal-organic
frameworks
(MOFs)
are
an
emerging
class
crystalline
materials,
and
their
derivatives
expected
as
alternative
anodes,
resulting
from
merits
easy
functionalization
pore
engineering.
In
this
study,
a
novel
porous
Co-MOF-derived
composite
anode
was
prepared
pyrolysis
nonporous
Co-cyclooctatetrathiophene
tetrapyridine
(Co-COTTTP)
template.
The
based
demonstrated
high
specific
long
in
assembled
cells.
Co-COTTTP-500
delivered
reversible
1005.7
mAh
g−1
after
100
cycles
at
0.1
A
can
be
cycled
steady
800
1
g−1,
indicating
structure
during
cell
operation.
comprehensive
investigation
framework
composition
Co-COTTTP-derived
revealed
that
exposed
rich
redox
active
sites,
appropriate
degree
graphitization,
heteroatom
doping
composites
effectively
enhanced
electrochemical
performance
anodes.
summary,
study
provides
feasible
strategy
to
prepare
high-performance
MOF-derived
contributing
fabrication
high-energy-density
batteries.
Research Square (Research Square), Год журнала: 2024, Номер unknown
Опубликована: Сен. 23, 2024
Язык: Английский
