Macromolecular Rapid Communications,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 10, 2025
Abstract
Lithium–sulfur
batteries
(LSBs)
are
considered
as
one
of
the
most
promising
next‐generation
energy‐storage
devices
because
their
high
energy
density.
However,
long‐term
use
LSBs
is
mainly
limited
by
polysulfide
shuttling
and
cathode
structural
degradation
caused
volume
changes
during
charging
discharging.
To
address
these
issues,
a
multifunctional,
high‐performance
aqueous
binder
developed
modifying
natural
polysaccharide
with
multi‐walled
carbon
nanotubes
(MWCNTs).
Specifically,
catechol‐conjugated
chitosan
(CCS)
acts
binder,
showing
strong
adsorption,
while
MWCNTs
covalently
bonded
to
CCS
enhance
mechanical
toughness
electronic
conductivity.
The
resulting
CCS‐MWCNTs
composite
exhibits
tensile
strength
40
MPa
strain
at
break
300%,
which
higher
than
those
CCS.
As
for
sulfur
cathodes,
demonstrates
superior
cyclic
stability
rate
capability.
At
loading
2.0
mg
cm⁻
2
,
it
delivers
an
initial
capacity
1016
mAh
g⁻¹
0.2
C
retains
690
after
100
cycles,
significantly
outperforming
commercial
polyvinylidene
difluoride
(PVDF),
sodium
carboxymethylcellulose/styrene
butadiene
rubber
(CMC/SBR),
binders.
This
study
potential
applications
binders
in
metal‐sulfur
innovatively
incorporating
into
biopolymer
providing
alternative
environmentally
friendly
storage.
Processes,
Год журнала:
2025,
Номер
13(3), С. 756 - 756
Опубликована: Март 5, 2025
Lithium-ion
batteries
are
one
of
the
critical
components
in
electric
vehicles
(EVs)
and
play
an
important
role
green
energy
transportation.
In
this
paper,
lithium-ion
reviewed
from
perspective
battery
materials,
characteristics
with
different
cathode
anode
mediums,
their
commercial
values
field
vehicles.
Representative
products,
including
blade
Tesla
4680
cells,
inspected.
Moreover,
results
application
summarized.
Furthermore,
cutting-edge
technologies
discussed,
electrolyte
technology,
high-energy-density
situ
polymerization
pouch
batteries.
Finally,
latest
EV
technology
development
is
looked
over,
challenges
future
directions.
Chemical Communications,
Год журнала:
2024,
Номер
60(79), С. 11017 - 11033
Опубликована: Янв. 1, 2024
Since
1990,
commercial
lithium-ion
batteries
have
made
significant
strides,
approaching
their
theoretical
performance
limits,
albeit
with
escalating
costs.
To
address
these
challenges,
attention
has
shifted
toward
lithium-sulfur
batteries,
which
offer
higher
energy
densities
and
cost-effectiveness.
However,
cells
face
challenges
such
as
active-material
loss,
excessive
electrolyte
usage,
rapid
degradation
of
lithium-metal
anodes.
overcome
issues,
research
focused
on
optimizing
cell
configurations
fabrication
parameters
while
exploring
novel
electrolytes
electrode
materials.
This
feature
article
delves
into
the
intrinsic
material
extrinsic
engineering
issues
in
current
explores
development
advanced
crucial
progress
high-loading
sulfur
cathodes,
lean-electrolyte
cells,
solid-state
electrolytes.
Moreover,
it
outlines
fundamental
principles,
structures,
performances,
developmental
trajectories
indicated
articles
published
after
2020,
highlighting
future
directions
aimed
at
resolving
key
for
practical
application
cells.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 9, 2024
Abstract
Lithium–sulfur
(Li–S)
batteries
are
gaining
tremendous
attention
as
promising
energy
storage
solutions
due
to
their
impressive
density
and
the
affordability
of
sulfur.
However,
practical
use
Li–S
encounter
major
obstacles
such
polysulfide
shuttle
effect,
which
leads
capacity
loss
decreased
cycling
stability.
Herein,
a
polyethylene
imidazole/polyacrylonitrile
(PVIMPAN)
nanofibers‐modified
Celgard
separator
is
constructed
via
facile
electrospinning
strategy
used
polysulfides
barrier
for
batteries.
The
electron‐deficient
imidazole
groups
introduced
on
surface
PVIMPAN
separators
create
that
prevents
shuttling
extends
cycle
life.
Additionally,
developed
exhibits
significantly
enhanced
Li
+
transfer
number
0.60,
compared
commercial
(0.20).
This
enhancement
can
be
attributed
strong
binding
between
bis(trifluoromethanesulphonyl)imide
anion,
leading
improved
plating
stripping
performance.
Consequently,
incorporating
into
enable
achievement
discharge
786.0
mAh
g
−1
with
close
100%
Coulombic
efficiency
after
500
cycles
at
1C
(25
°C).
It
believed
this
work
provide
valuable
insights
designing
suitable
robust
metal–sulfur
