Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 12, 2025
Abstract
Redox‐active
polymer
(RAP)‐based
organic
electrodes
offer
versatile
energy
storage
solutions
across
various
battery
systems.
However,
effective
dispersion
of
active
materials
with
conductive
additives
remains
challenging,
limiting
site
accessibility
and
material
utilization.
This
study
introduces
camphene
(CAMP),
a
bio‐derived
solvent,
to
fabricate
porous
through
templated
freeze
casting.
Compared
conventional
N‐methyl‐2‐pyrrolidone
(NMP)‐cast
electrodes,
CAMP‐cast
exhibit
superior
ion
diffusion,
lower
charge
transfer
resistance,
enhanced
reaction
kinetics
three
different
RAPs.
results
in
excellent
rate
capabilities
significant
capacity
retention
even
at
20
A
g
−1
current
density.
At
higher
mass
loadings
(>1.0
mg
cm
−
2
),
achieve
areal
capacities
≈0.15
mAh
0.5
over
1000
cycles
maintain
more
than
80%
after
500
.
These
findings
demonstrate
CAMP's
potential
as
an
eco‐friendly
alternative
NMP
for
producing
high‐performance
offering
sustainable
approach
advanced
solutions.
Chemical Reviews,
Год журнала:
2023,
Номер
123(19), С. 11392 - 11487
Опубликована: Сен. 20, 2023
From
scientific
and
technological
points
of
view,
poly(vinylidene
fluoride),
PVDF,
is
one
the
most
exciting
polymers
due
to
its
overall
physicochemical
characteristics.
This
polymer
can
crystalize
into
five
crystalline
phases
be
processed
in
form
films,
fibers,
membranes,
specific
microstructures,
being
physical
properties
controllable
over
a
wide
range
through
appropriate
chemical
modifications.
Moreover,
PVDF-based
materials
are
characterized
by
excellent
chemical,
mechanical,
thermal,
radiation
resistance,
for
their
outstanding
electroactive
properties,
including
high
dielectric,
piezoelectric,
pyroelectric,
ferroelectric
response,
best
among
systems
thus
noteworthy
an
increasing
number
technologies.
review
summarizes
critically
discusses
latest
advances
PVDF
copolymers,
composites,
blends,
main
characteristics
processability,
together
with
tailorability
implementation
areas
sensors,
actuators,
energy
harvesting
storage
devices,
environmental
microfluidic,
tissue
engineering,
antimicrobial
applications.
The
conclusions,
challenges
future
trends
concerning
application
also
presented.
eScience,
Год журнала:
2023,
Номер
3(4), С. 100152 - 100152
Опубликована: Май 27, 2023
The
lithium-ion
battery
(LIB)
has
enabled
portable
energy
storage,
yet
increasing
societal
demands
have
motivated
a
new
generation
of
more
advanced
LIBs.
Although
the
discovery
and
optimization
active
materials
been
subject
extensive
study
since
1980s,
most
disruptive
advancements
commercial
LIBs
in
past
decade
stem
instead
from
overall
cell
design
engineering.
In
pursuit
higher
density
fast-charging
capability,
strategies
focused
on
tuning
properties
composite
electrode
architectures
(e.g.,
porosity,
conductivity,
tortuosity,
spatial
heterogeneity)
by
restructuring
inactive
component
matrix
LIB
films
recently
garnered
attention.
This
perspective
explores
recent
advances
through
an
applied
lens,
emphasizing
synthetic
platforms
future
research
directions
that
are
scalable,
commercially
feasible,
applicable
to
wide
range
materials.
We
introduce
critically
assess
proposed
for
structuring
architectures,
including
gradients
local
composition
microstructure;
metal-foil
current
collector
alternatives;
templating
techniques,
evaluating
both
achievements
performance
applicability.
Coupled
with
improved
materials,
hold
promise
unlock
next
Advanced Energy Materials,
Год журнала:
2023,
Номер
13(40)
Опубликована: Май 26, 2023
Abstract
As
the
demand
for
lithium‐ion
batteries
(LIBs)
continuously
grows,
necessity
to
improve
their
efficiency/performance
also
grows.
For
this
reason,
optimization
of
individual
production
steps
is
critical.
Calendering
a
crucial
step
whereby
electrode
coatings
are
compacted
targeted
densities.
This
process
affects
porosity,
adhesion,
thickness,
wettability,
and
charge
transport
properties
electrodes,
as
well
homogeneity
coatings.
Optimal
calendered
electrodes
volumetric
energy
density,
cyclic
stability,
rate
capability
cells
enhance
structural
stability
active
material,
which
safety
polarization.
article
outlines
fundamental
processes
mechanisms,
how
modeling,
simulation,
tomography
can
be
used
optimize
these
processes.
Additionally,
influence
calendering
on
wide
range
anode
cathode
materials
discussed.
review
serves
give
deeper
understanding
into
process‐structure‐performance
relationships,
they
optimized
performance
LIBs.
Batteries,
Год журнала:
2024,
Номер
10(1), С. 39 - 39
Опубликована: Янв. 22, 2024
The
pursuit
of
industrializing
lithium-ion
batteries
(LIBs)
with
exceptional
energy
density
and
top-tier
safety
features
presents
a
substantial
growth
opportunity.
demand
for
storage
is
steadily
rising,
driven
primarily
by
the
in
electric
vehicles
need
stationary
systems.
However,
manufacturing
process
LIBs,
which
crucial
these
applications,
still
faces
significant
challenges
terms
both
financial
environmental
impacts.
Our
review
paper
comprehensively
examines
dry
battery
electrode
technology
used
implies
use
no
solvents
to
produce
electrodes
or
coatings.
In
contrast,
conventional
wet
technique
includes
processes
solvent
recovery/drying
mixing
like
N-methyl
pyrrolidine
(NMP).
Methods
that
films
bypass
blending
evaporation
processes.
advantages
include
shorter
production
time,
reduced
consumption,
lower
equipment
investment.
This
because
drying
required,
making
much
faster
and,
thus,
decreasing
price.
explores
three
solvent-free
film
techniques,
such
as
extrusion,
binder
fibrillation,
spraying
deposition,
applied
LIB
Emphasizing
cost-effective
large-scale
production,
critical
methods
identified
are
hot
melting,
fibrillation.
provides
comprehensive
examination
dry-film-making
methods,
detailing
underlying
principles,
procedures,
relevant
parameters.
Green Chemistry,
Год журнала:
2024,
Номер
26(13), С. 7508 - 7531
Опубликована: Янв. 1, 2024
Greener
batteries
are
an
emerging
approach
for
sustainable
environments
and
a
promising
technology
future
batteries.
In
this
review,
we
discuss
the
main
issues
to
fully
achieve
potential
of
with
greener
approaches.
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(7), С. 8930 - 8938
Опубликована: Фев. 7, 2024
Polytetrafluoroethylene
(PTFE)-based
dry
process
for
lithium-ion
batteries
is
gaining
attention
as
a
battery
manufacturing
scheme
can
be
simplified
with
drastically
reducing
environmental
damage.
However,
the
electrochemical
instability
of
PTFE
in
environment
has
hampered
realization
high-performance
dry-processed
anode.
In
this
study,
we
present
non-electroconductive
and
highly
ionic-conductive
polymer
coating
on
graphite
to
mitigate
degradation
binder
minimize
resistance.
Poly(ethylene
oxide)
(PEO)
poly(vinylidene
fluoride–trifluoroethylene–chlorofluoroethylene)
(P(VDF–TrFE–CFE))
coatings
anode
material
effectively
inhibit
electron
transfer
from
PTFE,
thereby
alleviating
breakdown.
The
improved
initial
Coulombic
efficiencies
full
cells
67.2%
(bare)
79.1%
77.8%
increased
discharge
capacity
157.7
mAh
g(NCM)–1
185.1
182.5
cells.
These
outcomes
demonstrate
that
surmounted
by
adjusting
PTFE.
ACS Energy Letters,
Год журнала:
2023,
Номер
8(8), С. 3460 - 3466
Опубликована: Июль 19, 2023
The
solvent-free
manufacturing
process
for
battery
electrodes
has
gathered
increased
scientific
interest
due
to
its
cost
reduction,
eco-friendliness,
and
ability
enhance
electrode
density.
Carbon
nanotubes
(CNTs)
are
anticipated
improve
performance,
owing
their
exceptional
electrical
conductivity
unique
one-dimensional
morphology.
In
this
study,
we
demonstrate
that
the
integration
of
ozone
treatment
CNTs
can
further
electrochemical
performance
high-loading
(30
mg/cm2
or
higher)
dry-processed
cathodes
employing
high-nickel
active
materials
(NCM811).
By
comparing
these
with
using
carbon
black,
a
conventional
conductive
agent,
elucidate
enhanced
single-walled
(SW)
CNT-based
originates
from
formation
cathode-electrolyte
interphase
favorable
protective
abilities
capacity
suppress
microcrack
within
NCM811
particles.
current
study
presents
promising
strategy
incorporating
SWCNTs
tuned
surface
functionalities
development
cost-effective,
environmentally
friendly
dry
manufacturing.
