Advanced Energy Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 4, 2024
Abstract
The
high
irreversibility
to
FeS
2
‐based
anode
thwarts
its
applicability
in
sodium
ion
batteries
(SIBs),
originally
stem
from
the
sluggish
Na
+
insertion/extraction
kinetics,
confined
by
desolvation
barrier,
thick
electric
double
layer
(EDL)
and
long
transport
routine
inside
.
Herein,
covalent
polypeptide
oligomers
(Pcy)
based
on
cysteine
(Cy)
with
β‐sheet
configuration
grafted
binary
hollow
carbon
coupled
@Fe
O
3
heterostructure,
i.e.,
/Fe
@C@Pcy,
are
designed
achieve
low
contracted
EDL
via
weakened
coulombic
interaction
stems
zwitterionic
feature
enhanced
capacity
semi‐interpenetrating
possessing
a
weak
coordination
environment,
massively
accelerate
additionally,
orderly
dense
vertical
occupation
within
inner
Helmholtz
plane
(IHP)
also
enormously
reduces
thickness
of
EDL.
structure
complex
typical
looping
considerably
expedites
kinetics
anode.
Both
experimental
theoretical
trials
demonstrate
such
composite
manifests
reversibility
storage
virtue
exceptional
stability,
rapid
swift
reaction
kinetics.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 12, 2025
Abstract
Bacteria‐derived
carbon
anode
materials
have
shown
appealing
potential
for
advanced
energy
storage
applications
due
to
their
low
cost
and
good
sustainability.
However,
the
few
intrinsic
defects,
sluggish
transmission
dynamics,
capacity
become
main
bottleneck
further
development.
Herein,
study
designs
a
highly
B,
N
co‐doped
mesoporous
(BNMC)/staphylococcus
aureus‐derived
(SAC)
composite
via
facile
assembly
route,
followed
by
boron‐doping.
Enabled
heteroatom
doping
pore
construction,
resulting
BNMC/SAC
lithium‐ion
batteries
demonstrates
high
reversible
of
621.77
mAh
g
−1
at
200
mA
even
after
500
cycles,
an
excellent
rate
performance
405.14
2
A
.
Importantly,
in
situ/ex
situ
characterizations
theoretical
simulation
results
unveil
that
co‐doping
along
with
small
amount
P
can
significantly
increase
defects
BNMC/SAC,
thus
providing
more
active
sites
storage.
Furthermore,
these
structural
features
are
conducive
improving
interfacial
stability
whole
electrode,
achieving
thin
uniform
SEI
film.
The
multi‐component
strategy
engineering
presents
scalable
approach
enhancing
transfer
dynamics
carbon‐based
electrode
low‐cost
Abstract
Sodium‐ion
batteries
(SIBs)
are
emerging
as
a
potential
alternative
to
traditional
lithium‐ion
due
the
abundant
sodium
resources.
Carbon
anodes,
with
their
stable
structure,
wide
availability,
low
cost,
excellent
conductivity,
and
tunable
morphology
pore
exhibit
outstanding
performance
in
SIBs.
This
review
summarizes
research
progress
of
hard
carbon
anodes
SIBs,
emphasizing
innovative
paths
advanced
performances
achieved
through
multitrack
optimization,
including
dimensional
engineering,
heteroatom
doping,
microstructural
tailoring.
Each
dimension
material—0D,
1D,
2D,
3D—offers
unique
advantages:
0D
materials
ensure
uniform
dispersion,
1D
have
short
Na
+
diffusion
paths,
2D
possess
large
specific
surface
areas,
3D
provide
e
−
/Na
conductive
networks.
Heteroatom
doping
elements
such
N,
S,
P
can
tune
electronic
distribution,
expand
interlayer
spacing
carbon,
induce
Fermi
level
shifts,
thereby
enhancing
storage
capability.
In
addition,
defect
engineering
improves
electrochemical
by
modifying
graphitic
crystal
structure.
Furthermore,
suitable
structure
design,
particularly
closed
structures,
increase
capacity,
minimizes
side
reactions,
suppress
degradation.
future
studies,
optimizing
exploring
co‐doping,
developing
environmentally
friendly,
low‐cost
anode
methods
will
drive
application
high‐performance
long
cycle
life
Research Square (Research Square),
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 29, 2025
Abstract
It
is
known
that
there
existing
the
"energy
versus
power
dilemma"
in
electrochemical
energy
storage
devices.
Most
conventional
electrode
materials,
whether
based
on
ion
insertion-extraction
or
pseudo-capacitance,
inevitably
require
a
trade-off,
enhancing
one
performance
metric
at
cost
of
another.
For
high-theoretical-capacity
(2596
mA
h
g-1)
black
phosphorus
(BP)
sluggish
kinetics
multiphase
redox
reactions
(PRR)
fundamentally
constrain
fast-charging
and
high-power
BP-based
batteries.
Although
catalytic
strategies
can
accelerate
kinetics,
their
application
to
BP’s
complex
solid-state
transformations
remains
challenging.
Here
we
report
approach
through
engineered
P–N–P
bridge
bonds
within
BP/carbon
composite
which
first
designed
backbone
BP
lattice,
distinguishing
it
from
previous
studies
heteroatom-doped
carbon
materials.
The
formation
P-N-P
lattice
transform
semi-conductive
into
metallic
state
reduce
barriers
for
Li-ions
diffusion,
improving
PRR
dynamics,
structural
stability
environmental
stability.
resulting
nitrogen-doped
(N-BP/C)
anode
achieves
ultrafast
higher
capacity,
N-BP/C
shows
specific
capacity
1482
g-1
with
coulombic
efficiency
(CE)
exceeding
99.6%
after
200
cycles,
more
than
twice
687
BP/C
sample.
Furthermore,
an
assembled
LiFePO₄
‖
pouch
cell
delivers
282
Wh
kg⁻¹
density
80%
retention
10
minutes
high
current
A
g⁻¹—meeting
U.S.
Department
Energy’s
Extreme
Fast
Charging
(XFC)
targets.
This
also
exhibits
exceptional
cyclability
(>
3,400
cycles),
times
longer
phosphorus-based
LIBs.
work
establishes
paradigm
enhancement
storage,
advancing
design
new
batteries
both
density.
