International Journal of Energy Research,
Journal Year:
2024,
Volume and Issue:
2024(1)
Published: Jan. 1, 2024
Given
the
growing
demand
for
high‐performance,
stable,
eco‐friendly,
and
cheap
lithium‐ion
batteries
(LIBs),
development
of
affordable
environmentally
friendly
high‐performance
anode
materials
LIBs
has
garnered
considerable
attention.
Herein,
to
address
this
need,
NiS
(known
its
high
theoretical
capacity)
was
grown
on
a
porous
biocarbon
(BC)
matrix
afford
highly
conductive
LIB
material
capable
accommodating
charge/discharge‐induced
volume
changes
thus
ensuring
cycle
stability.
The
cycling
performance
(NiS–BC)
further
enhanced
by
doping
with
Fe.
best‐performing
(Ni
0.8
Fe
0.2
S–BC)
demonstrated
an
initial
discharge
capacity
1,374.4
mAh
g
−1
at
0.5
A
,
which
increased
1,796.4
after
100
cycles,
origins
were
probed
instrumental
analysis.
results
contribute
next‐generation
applications
requiring
capacity,
output,
long‐term
stability,
such
as
electronic
devices,
electric
vehicles,
energy
storage
systems.
Moreover,
use
BC
aligns
prominent
trend
in
modern
battery
research,
namely,
secondary
simultaneously
exhibiting
sustainability.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(40)
Published: May 20, 2024
Abstract
Hard
carbon
(HC)
materials
with
rich
closed
pore
structures
and
nano‐scaled
soft
coating
layer
have
emerged
as
promising
anode
in
sodium‐ion
batteries
(SIBs).
However,
it
still
remains
a
tremendous
challenge
to
precisely
regulate
thicknesses
for
achieving
excellent
electrochemical
performance
SIBs
at
low‐voltage
platforms.
Herein,
PCHC‐10
abundant
suitable‐sized
size
(0.45
nm)
has
been
accurately
designed
by
chemical
crosslink
reaction
between
the
pre‐oxidized
phenolic
resin
small
addition
of
pitch
form
ester‐based
bond.
As
anode,
delivered
large
reversible
capacity
359.8
mAh
g
−1
within
0.001–2.5
V,
high
242.8
low
voltage
platforms
(≤0.15
V).
Besides,
exhibits
91.4%
retention
100
cycles,
Na
3
V
2
(PO
4
)
//PCHC‐10
full
cell
superior
rate
energy
density
231.2
Wh
kg
.
Furthermore,
detailed
storage
behaviors
theoretical
calculations
revealed
that
HC
owning
pore‐size
0.45
nm
strongest
+
abilities
This
work
presents
novel
insight
constructing
boost
capability
Small,
Journal Year:
2024,
Volume and Issue:
20(30)
Published: Feb. 22, 2024
Abstract
With
the
increasing
attention
to
energy
and
environmental
issues,
high
value‐added
utilization
of
biomass
pitch
functional
carbon
materials
has
become
an
important
topic
in
science
technology.
In
this
work,
soft‐hard
heterostructure
porous
(NRP‐HPC)
is
prepared
by
bio‐template
method,
which
are
used
as
hard
soft
precursors,
respectively.
The
NRP‐HPC‐4
shows
specific
surface
area
(2293
m
2
g
−1
),
suitable
pore
size
distribution,
good
conductivity
(0.25
Ω
cm
strong
wettability.
synergistic
effect
ensures
composite
material
exhibiting
excellent
electrochemical
performance
for
mass
loading
(12.0
mg
−2
)
aqueous
supercapacitor,
i.e.,
capacitance
(304.69
F
at
0.1
A
(3.67
volumetric
(202.74
−3
low
open‐circuit
voltage
attenuation
rate
(21.04
mV
h
retention
(79.12%),
cyclic
stability
(92.04%
100%
coulombic
efficiency
after
20
000
cycles).
technology
not
only
electrode
with
enhanced
performance,
but
also
realizes
coupling
pitch.
ACS Applied Energy Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: May 20, 2024
Lithium-ion
capacitors
(LICs)
consist
of
a
capacitor-type
cathode
and
lithium-ion
battery-type
anode,
incorporating
the
merits
both
components.
Well-known
for
their
high
energy
density,
superior
power
prolonged
cycle
life,
commendable
safety
attributes,
LICs
have
attracted
enormous
interest
in
recent
years.
However,
construction
high-performance
LIC
devices
faces
significant
constraints
due
to
inherent
kinetic
imbalances
between
electrode
materials
trade-off
stability.
Hence,
many
efforts
been
made
develop
LICs.
This
review
mainly
focuses
on
progresses
LICs,
particularly
containing
anode
active
materials,
prelithiation
technologies,
conductive
additives,
nonaqueous
electrolytes.
Finally,
summary
outlook
are
presented
highlight
some
future
challenges
hybrid
ACS Sustainable Chemistry & Engineering,
Journal Year:
2024,
Volume and Issue:
12(19), P. 7616 - 7628
Published: April 26, 2024
Constructing
high-loading
(>10
mg/cm2)
carbon-based
electrode
materials
is
an
effective
way
to
simultaneously
boost
the
gravimetric/volumetric
energy
density
and
power
of
capacitors.
However,
porous
carbon
usually
have
high
defect
structures,
low
compaction
density,
graphitization
degree,
which
severely
hinder
their
electron/ion
transport
rates
at
mass
loading,
thereby
deteriorating
electrochemical
performance.
Thus,
we
first
propose
construct
short-range
ordered
with
enhance
detailed
performance
without
affecting
rates.
Herein,
S,
N
codoped
(3SN-NAC-800)
a
large
specific
surface
area,
abundant
structures
was
prepared
by
confined-region
activation
method,
in
needle
coke
used
as
precursor,
thiourea
dopant,
KOH
activator
under
10
MPa
pressure.
The
3SN-NAC-800
4
mg/cm2
exhibits
capacities
267.2
229.7
F/g
2
50
A/g,
respectively,
92.9%
capacitance
retention
for
20,000
cycles.
When
loading
increased
8,
12,
14
mg/cm2,
it
still
exhibited
260.4,
257.5,
250.4
respectively.
Besides,
12
shows
gravimetric
areal
values
197.3
2367.12
mF/cm2
40
well
90.98%
capacity
cycles,
showing
excellent
rate
capability
cycling
stability.
Furthermore,
maximum
0.11
mWh/cm2
2.97
mW/cm2,
87.6
mW/cm2
0.044
mWh/cm2.
This
work
demonstrates
efficient
strategy
prepare
high-mass-loading
Materials Reports Energy,
Journal Year:
2024,
Volume and Issue:
4(3), P. 100279 - 100279
Published: June 1, 2024
Due
to
its
low
cost,
environmental
friendliness
and
high
energy
density,
the
lithium-sulfur
battery
(LSB)
has
been
regarded
as
a
promising
alternative
for
next
generation
of
rechargeable
systems.
However,
practical
application
LSB
is
seriously
hampered
by
short
cycle
life
self-charge
owing
apparent
shuttle
effect
soluble
lithium
polysulfides.
Using
MgSO4@MgO
composite
both
template
dopant,
template-guided
S-doped
mesoporous
graphene
(SMG)
prepared
via
fluidized-bed
chemical
vapor
deposition
method.
As
polypropylene
(PP)
modifier,
SMG
with
specific
surface
area,
abundant
structures
moderate
S
doping
content
offers
wealth
physical
adsorptive
sites
reduced
interfacial
contact
resistance,
thereby
restraining
serious
effects
Consequently,
configured
(MG)
host
material
separator
modifier
exhibits
an
enhanced
electrochemical
performance
average
capacity
955.64
mA
h
g-1
at
1C
small
decay
rate
0.109%
per
cycle.
Additionally,
density
functional
theory
(DFT)
calculation
models
have
rationally
constructed
demonstrated
that
doped
atoms
in
possess
higher
binding
polysulfides
than
MG,
indicating
SMG/PP
can
effectively
capture
forces.
This
work
would
provide
valuable
insight
into
developing
versatile
carbon-based
LSB.
