Advanced Energy Materials,
Год журнала:
2023,
Номер
13(32)
Опубликована: Июль 4, 2023
Abstract
The
electrification
of
transportation
in
the
past
few
decades
has
sparked
retirement
lithium‐ion
batteries
(LIBs)
which
hinders
sustainability
derived
from
environmental
impact
and
valuable
elements
loss
through
improper
disposal.
challenges
recycling
spent
LIB
are
contamination,
complicated
processes,
massive
chemical/energy
consumption,
secondary
pollution.
Here,
a
material
energy
dual
circulations
method
is
proposed
for
closed‐loop
sustainably
components
LIBs.
In
circulation,
cathode,
anode,
accessories,
like
castings,
aluminum‐plastic
films,
binders,
recycled
by
electrochemical
dual‐electrode
technology
to
regenerate
LIBs
fabricate
triboelectric
nanogenerator
(TENG).
fabricated
TENG
converts
ambient
wind
into
electricity
continuously
power
circulation
forming
self‐powered
system.
This
system
shows
high
element
selectivity
(Li,
99.7%;
Ni,
96.1%;
Co,
97.3%;
Mn,
97.2%),
self‐powering,
simplified
treating
procedure,
profit,
makes
it
feasible
commercial
application.
iScience,
Год журнала:
2023,
Номер
26(9), С. 107674 - 107674
Опубликована: Авг. 18, 2023
Wind
energy
is
crucial
for
meeting
climate
and
sustainability
targets.
Small
wind
turbines
(SWTs)
have
gained
significant
attention
due
to
their
size
adaptability.
These
potential
Internet
of
Things
(IoT)
applications,
particularly
in
powering
large
areas
low-power
devices.
This
review
examines
SWTs
IoT
providing
an
extensive
overview
development,
including
rectifiers,
power
generation
mechanisms,
applications.
The
paper
summarizes
compares
different
types
explores
recent
advancements
representative
work,
discusses
applicable
generator
systems
such
as
electromagnetic,
piezoelectric,
triboelectric
nanogenerators.
In
addition,
it
thoroughly
reviews
the
latest
research
on
application
scenarios,
transportation,
urban
environments,
intelligent
agriculture,
self-powered
sensing.
Lastly,
identifies
future
directions
emphasizes
interdisciplinary
technologies
driving
SWT
development.
Advanced Materials Technologies,
Год журнала:
2023,
Номер
8(15)
Опубликована: Май 23, 2023
Abstract
Modern
ship
is
an
important
transportation
and
even
military
equipment
on
the
ocean,
which
has
ubiquitous
ocean
wind
energy
with
high‐speed
stable
direction.
However,
much
higher‐speed
during
movement
of
often
abandoned.
Triboelectric
nanogenerator
(TENG)
that
can
generate
electrical
by
scavenging
ambient
mechanical
one
emerging
harvesting
technologies.
By
coupling
TENG
electromagnetic
generators
(EMG),
a
high‐performance
rotary‐structured
triboelectric‐electromagnetic
hybrid
(RS‐HG)
designed
in
this
study.
introducing
matched
inductor
paired
management
circuit
(EMC),
charging
efficiency
RS‐TENG
be
effectively
enhanced
15
times
compared
to
without
EMC.
At
simulated
speed
m
s
−1
,
peak
power
lateral
(L‐TENG),
top
(T‐TENG)
EMG
are
7.54,
7.85,
22.5
mW,
respectively.
The
demonstrated
RS‐HG
comprising
two
RS‐TENGs
readily
charge
1
mF
capacitor
8
V
within
under
continuously
electronic
devices.
Moreover,
also
successfully
smartphone
through
step‐down
voltage
stabilization
module
further
expand
its
application
scenarios.
applications
powering
portable
electronics
reveal
huge
prospects
nanogenerators
self‐powered
environmental
monitoring
navigation.
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(42)
Опубликована: Июнь 6, 2023
Abstract
Low‐speed
flow
energy,
such
as
breezes
and
rivers,
which
are
abundant
in
smart
agriculture
cities,
faces
significant
challenges
efficient
harvesting
an
untapped
sustainable
energy
source.
This
study
proposes
alternating
magnetic
field‐enhanced
triboelectric
nanogenerator
(AMF‐TENG)
for
low‐speed
harvesting,
demonstrates
its
feasibility
through
experimental
results.
AMF‐TENG's
minimum
cut‐in
speed
is
1
m
s
−1
,
thereby
greatly
expanding
wind
range.
When
the
1–5
open‐circuit
voltage
(
V
OC
)
20.9–179.3
V.
The
peak
power
0.68
mW
at
5
.
In
a
durability
test
of
100
K
cycles,
decreases
from
188.4
to
174.2
but
remain
92.5%
initial
value.
furthermore,
AMF‐TENG
can
harvest
natural
environment
temperature
humidity
sensors
wireless
light
intensity
sensor
agriculture.
provides
promising
method
distributed
applications.
ACS Nano,
Год журнала:
2024,
Номер
18(18), С. 11964 - 11977
Опубликована: Апрель 24, 2024
In
view
of
the
depletion
natural
energy
resources,
harvesting
from
waste
is
a
revolution
to
simultaneously
capture,
unite,
and
recycle
various
types
energies
in
flexible
devices.
Thus,
this
work,
spin-charge-regulated
pyro-magneto-electric
nanogenerator
devised
at
well-known
ferroelectric
P(VDF-TrFE)
copolymer.
It
promptly
stores
thermal-magnetic
"capacitor"
that
generates
electricity
room
temperature.
The
domains
are
regulated
slip
interfaces
(also
twins)
duly
promoting
polarization
other
properties.
An
excellent
pyroelectric
coefficient
p
∼
615
nC·m–2·K–1
obtained,
with
enhanced
stimuli
thermal
sensitivity
∼1.05
V·K–1,
magnetoelectric
αme
∼8.8
mV·cm–1·Oe–1
180
Hz
(resonance
frequency),
magnetosensitivity
∼473
V/T.
noteworthy
strategy
further
improving
(up
41.2
μC·m–2·K–1)
23.6
mV·cm–1·Oe–1)
realized
electrically
poled
dipoles.
model
hybrid
structure,
spins
lead
switch
up
electric
dipoles
parallel
polymer
chains
cohesive
charged
layer.
an
innovative
approach
for
efficiently
scavenging
vehicles,
homes,
industries,
where
abundant
magnetic
accessible.
This
sustainable
could
be
useful
next-generation
self-powered
electronics.
Traffic
lights
play
vital
roles
in
urban
traffic
management
systems,
providing
clear
directional
guidance
for
vehicles
and
pedestrians
while
ensuring
safety.
However,
the
vast
quantity
of
widely
distributed
transportation
system
aggravates
energy
consumption.
Here,
a
self-powered
light
is
proposed
through
wind
harvesting
based
on
high-performance
fur-brush
dish
triboelectric
nanogenerator
(FD-TENG).
The
FD-TENG
harvests
to
power
continuously
without
needing
an
external
supply.
Natural
rabbit
furs
are
applied
structures,
due
their
outstanding
characteristics
shallow
wear,
high
performance,
resistance
humidity.
Also,
grid
pattern
structure
significantly
impacts
TENG
outputs.
Additionally,
internal
electric
field
influences
mechanical
structural
parameters
outputs
analyzed
by
finite
element
simulations.
After
optimization,
can
achieve
peak
density
3.275
W
m
Purpose
The
imperative
for
sustainable
energy
systems
is
increasingly
pressing
as
the
world
transitions
toward
renewable
sources.
Among
these,
triboelectric
nanogenerators
(TENGs)
have
emerged
a
viable
option
wind
harvesting.
However,
they
face
significant
challenges,
including
material
durability
under
varying
conditions;
intricacy
of
selection
and
performance;
trade-off
between
wear
resistance
efficiency.
This
study
aims
to
address
above
issues.
Design/methodology/approach
Herein,
mode-switch
TENG
(MS-TENG)
was
designed
overcome
these
limitations
serve
self-powered
solution
Internet
Things
(IoT)
sensor
networks.
MS-TENG
incorporates
multi-stage
functional
layer
an
automatic
mode-switching
mechanism
contact
non-contact
operation,
thereby
enhancing
both
efficiency
durability.
Findings
It
demonstrated
that
achieves
maximum
instantaneous
output
power
0.069
mW
with
minimal
mechanical
wear,
effectively
capturing
energy.
Its
capability
charge
capacitors
range
electronic
devices,
such
temperature
humidity
sensors,
watches
water
immersion
guards,
underscores
its
practical
utility
across
diverse
settings.
Originality/value
research
situates
pioneering
technology
in
smart
applications
future
energy-harvesting
endeavors,
optimizing
acquisition
fluctuating
conditions
reinforcing
sustainability
IoT
Advanced Materials,
Год журнала:
2023,
Номер
36(6)
Опубликована: Окт. 16, 2023
Abstract
Fluid‐based
triboelectric
nanogenerators
(FB‐TENGs)
are
at
the
forefront
of
promising
energy
technologies,
demonstrating
ability
to
generate
electricity
through
dynamic
interaction
between
two
dissimilar
materials,
wherein
least
one
is
a
fluidic
medium
(such
as
gas
or
liquid).
By
capitalizing
on
and
continuous
properties
fluids
their
interface
interactions,
FB‐TENGs
exhibit
larger
effective
contact
area
longer‐lasting
effect
in
comparison
solid‐based
counterparts,
thereby
affording
longer‐term
harvesting
higher‐precision
self‐powered
sensors
harsh
conditions.
In
this
review,
various
fluid‐based
mechanical
harvesters,
including
liquid‐solid,
gas‐solid,
liquid‐liquid,
gas‐liquid
TENGs,
have
been
systematically
summarized.
Their
working
mechanism,
optimization
strategies,
respective
advantages
applications,
theoretical
simulation
analysis,
well
existing
challenges,
also
comprehensively
discussed,
which
provide
prospective
directions
for
device
design
mechanism
understanding
FB‐TENGs.
