Angewandte Chemie International Edition,
Journal Year:
2021,
Volume and Issue:
61(7)
Published: Dec. 10, 2021
The
practical
application
of
lithium-sulfur
batteries
is
still
limited
by
the
lithium
polysulfides
(LiPSs)
shuttling
effect
on
S
cathode
and
uncontrollable
Li-dendrite
growth
Li
anode.
Herein,
elaborately
designed
WSe2
flakelets
immobilized
N-doped
graphene
(WSe2
/NG)
with
abundant
active
sites
are
employed
to
be
a
dual-functional
host
for
satisfying
both
anode
synchronously.
On
cathode,
/NG
strong
interaction
towards
LiPSs
can
act
as
redox
accelerator
promote
bidirectional
conversion
LiPSs.
anode,
excellent
lithiophilic
features
regulate
uniform
plating/stripping
mitigate
dendrite.
Taking
advantage
these
merits,
assembled
Li-S
full
exhibit
remarkable
rate
performance
stable
cycling
stability
even
at
higher
sulfur
loading
10.5
mg
cm-2
negative
positive
electrode
capacity
(N/P)
ratio
1.4
:
1.
Advanced Energy Materials,
Journal Year:
2023,
Volume and Issue:
13(26)
Published: May 26, 2023
Abstract
The
growth
of
disordered
lithium
dendrite
and
the
notorious
reaction
between
Li
electrolyte
hamper
practical
application
metal
batteries
(LMBs).
Herein,
an
artificial
solid
interphase
(ASEI)
constructed
by
a
nitro‐functionalized
covalent
organic
framework
(NO
2
‐COF)
is
designed
to
regulate
+
deposition
stable
anodes.
Strong
electron‐withdrawing
nitro
groups
can
gather
surrounding
electrons
connected
monomer
donor‐acceptor
(D‐A)
effect,
thus
regulating
electron
structure
(COF)
constructing
specific
cation‐oriented
channel.
uniform
inhibition
dendrites
are
achieved
under
such
high‐selective
transportation
channel
regulated
surface
electric
charge.
In
addition,
also
be
reduced
NO
−
further
react
with
produce
high
ionic‐conductivity
3
N
LiN
x
O
y
during
charging/discharging,
which
contributes
migration
.
As
result,
‐COF‐modified
symmetrical
realize
ultra‐long
cycling
life
more
than
6000
h
current
density
5
mA
cm
−2
compared
bare
TpBD‐COF/Li
(without
nitro).
full
cells
coupled
LiFePO
4
stably
cycle
1000
times
capacity
retention
91%.
Hence,
effectively
optimizing
effect
provides
better
platform
elevate
performance
LMB.
Advanced Science,
Journal Year:
2023,
Volume and Issue:
11(3)
Published: Nov. 8, 2023
Abstract
Since
the
initial
discovery
of
Ti
3
C
2
a
decade
ago,
there
has
been
significant
surge
interest
in
2D
MXenes
and
MXene‐based
composites.
This
can
be
attributed
to
remarkable
intrinsic
properties
exhibited
by
MXenes,
including
metallic
conductivity,
abundant
functional
groups,
unique
layered
microstructure,
ability
control
interlayer
spacing.
These
contribute
exceptional
electrical
mechanical
performance
rendering
them
highly
suitable
for
implementation
as
candidate
materials
flexible
wearable
energy
storage
devices.
Recently,
substantial
number
novel
research
dedicated
exploring
with
diverse
functionalities
specifically
designed
structures,
aiming
enhance
efficiency
systems.
In
this
review,
comprehensive
overview
synthesis
fabrication
strategies
employed
development
these
is
provided.
Furthermore,
an
in‐depth
analysis
applications
innovative
materials,
encompassing
supercapacitors,
Li‐ion
batteries,
Li–S
other
potential
avenues,
conducted.
addition
presenting
current
state
field,
challenges
encountered
are
also
highlighted
insights
provided
into
future
directions
prospects.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
36(2)
Published: Aug. 24, 2023
Abstract
As
an
indispensable
component
of
rechargeable
batteries,
the
current
collector
plays
a
crucial
role
in
supporting
electrode
materials
and
collecting
accumulated
electrical
energy.
However,
some
key
issues,
like
uneven
resources,
high
weight
percentage,
electrolytic
corrosion,
high‐voltage
instability,
cannot
meet
growing
need
for
batteries.
In
recent
years,
MXene‐based
collectors
have
achieved
considerable
achievements
due
to
its
unique
structure,
large
surface
area,
conductivity.
The
related
research
has
increased
significantly.
Nonetheless,
comprehensive
review
this
area
is
seldom.
Herein
applications
progress
MXene
are
systematically
summarized
discussed.
Meanwhile,
challenges
future
directions
presented.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(28)
Published: May 7, 2024
Alkali
metals
(e.g.
Li,
Na,
and
K)
multivalent
Zn,
Mg,
Ca,
Al)
have
become
star
anodes
for
developing
high-energy-density
rechargeable
batteries
due
to
their
high
theoretical
capacity
excellent
conductivity.
However,
the
inevitable
dendrites
unstable
interfaces
of
metal
pose
challenges
safety
stability
batteries.
To
address
these
issues,
covalent
organic
frameworks
(COFs),
as
emerging
materials,
been
widely
investigated
regular
porous
structure,
flexible
molecular
design,
specific
surface
area.
In
this
minireview,
we
summarize
research
progress
COFs
in
stabilizing
anodes.
First,
present
origins
delve
into
advantages
based
on
physical/chemical
properties
alkali
metals.
Then,
special
attention
has
paid
application
host
design
anodes,
artificial
solid
electrolyte
interfaces,
additives,
solid-state
electrolytes,
separator
modifications.
Finally,
a
new
perspective
is
provided
from
pore
modulation,
synthesis
COFs.
Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
16(1)
Published: June 14, 2024
Abstract
MXene
has
garnered
widespread
recognition
in
the
scientific
community
due
to
its
remarkable
properties,
including
excellent
thermal
stability,
high
conductivity,
good
hydrophilicity
and
dispersibility,
easy
processability,
tunable
surface
admirable
flexibility.
MXenes
have
been
categorized
into
different
families
based
on
number
of
M
X
layers
n+1
n
,
such
as
2
X,
3
4
and,
recently,
5
.
Among
these
families,
particularly
Ti
C
greatly
explored
while
limited
studies
given
synthesis.
Meanwhile,
family
developed
hence,
demanding
a
compilation
evaluated
studies.
Herein,
this
review
provides
systematic
overview
latest
advancements
MXenes,
focusing
their
properties
applications
energy
storage
devices.
The
objective
is
provide
guidance
researchers
fostering
MXene-based
nanomaterials,
not
only
for
devices
but
also
broader
applications.
