Li
metal
has
been
considered
as
a
promising
anode
for
next-generation
high-energy-density
batteries.
However,
the
uncontrollable
dendrite
growth,
infinite
volume
change,
and
unstable
solid
electrolyte
interphase
(SEI)
layer
cause
serious
safety
issues
poor
cycling
performances,
inhibiting
its
practical
application.
Herein,
N-doped
CoS2
needle-like
nanoarrays
are
decorated
on
carbon
cloth.
The
with
lithiophilic
nature
can
decrease
nucleation
barriers
induce
uniform
deposition.
Furthermore,
during
prelithiation
process,
in
situ
reaction
between
formed
stable
Li2S
Li3N
dual-component
protective
layers,
which
efficiently
suppresses
growth
stabilizes
electrolyte-electrode
interface.
As
result,
N-CoS2@CC
electrode
shows
an
excellent
rate
performance
long
lifespan
of
800
h
under
5
mA
cm–2/1
cm–2
low
overpotential
(12
mV).
When
paired
LiFePO4
(LFP)
cathode,
obtained
N-CoS2@CC@Li||LFP
cell
exhibits
outstanding
electrochemical
performances
at
high
temperature
60
°C
well
mass
loading
10
mg
cm–2.
This
work
provides
rational
approach
to
constructing
3D
host
SEI
layers
toward
Energy Advances,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
Graphite,
with
a
modest
specific
capacity
of
372
mAh
g-1,
is
stable
material
for
lithium-ion
battery
anodes.
However,
its
inadequate
to
meet
the
growing
power
demands
because...
The
irregular
dendrite
growth
and
unfavorable
adverse
reactions
on
the
Zn
anode
has
emerged
as
a
non-negligible
obstacle
for
broad
deployment
of
aqueous
zinc-ion
batteries
(AZIBs).
Herein,
thin
robust
separator
(LFP1:1)
composed
lyocell
fibrillated
fibers
polyethylene
terephthalate
(PET)
that
features
light
weight,
cost
effectiveness,
being
mass-producible
is
developed
by
paper-making
method
to
inhibit
undesirable
achieve
an
exceptional
stable
anode.
LFP1:1
offers
abundant
polar
functional
groups,
small
uniform
pore
structure,
high
mechanical
strength,
which
beneficial
constructing
specific
migration
channels
Zn2+
suppressing
reactions,
promoting
deposition,
resisting
penetration.
As
verified
experimental
results,
Zn//Zn
symmetric
cell
furnished
with
displays
prolonged
lifespan
up
1452
h
in
3
M
Zn(CF3SO3)2
electrolyte
at
1
mA·cm–2
without
or
byproducts,
superior
than
GF
separator.
Moreover,
assembled
Zn//V2O5
full
also
demonstrates
outstanding
cycling
stability
77.8%
capacity
retention
A·g–1
after
1000
cycles.
This
work
sheds
promising
large-scale
producible
development
advanced
materials
performance
AZIBs.
Nano Letters,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 3, 2025
Alluaudite-type
iron-based
sulfate
structure
(Na2+2xFe2-x(SO4)3)
has
attracted
wide
attention
due
to
its
high
working
voltage
and
low
cost.
However,
their
practical
application
is
hindered
by
challenges
such
as
limited
reversible
capacity
sluggish
transfer
kinetics.
Herein,
we
proposed
an
anion
substitution
strategy
optimize
cathode
materials.
The
electrochemical
characterization
theoretical
calculations
confirmed
a
reduction
in
the
migration
barrier
of
Na+
ions
various
pathways.
Besides,
fluorine
weakened
electron
density
crystal
plane,
thereby
impeding
continuous
side
reaction
electrolyte.
As
expected,
NFSF
can
exhibit
121.5
mAh
g-1
at
12
mA
keep
retention
78.8%
after
1000
cycles
600
g-1.
In
addition,
NFSF-based
hard
carbon
(HC)-based
anode
were
assembled
into
laboratory-scale
pouch
cell
demonstrate
performance
applications.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 17, 2025
Abstract
Fluoride
ion
batteries
(FIBs)
have
garnered
significant
attention
due
to
their
ultrahigh
theoretical
energy
density,
dendrite‐free
safety,
and
resource
abundance.
Although
some
anion
acceptors
been
proposed
address
the
insolubility
of
inorganic
fluoride
salts,
difficulty
in
dissociating
ions
from
results
short
lifespan
extremely
low
specific
capacity
FIBs.
Here,
a
battery
is
demonstrated
with
unprecedented
long
life
through
design
an
acceptor‐multi‐F
state
electrolyte.
The
high
Lewis
acidity
triphenylantimony
chloride
(TSbCl)
as
novel
acceptor
electrolyte
facilitates
complete
dissociation
CsF,
resulting
TSbCl‐F
complex
can
further
interact
form
states.
This
strategy
combines
capability
for
salts
minimal
thermodynamic
barriers
releasing
at
electrode‐electrolyte
interface.
endows
FIBs
durable
reversible
fluorination/defluorination
reaction
(3700
cycles
coulombic
efficiency
99.5%
small
voltage
polarization
30
mV)
(580
mAh
g
−1
after
40
100
mA
).
high‐output
CuF
2
//Li
configuration
(with
discharge
plateau
2.9
V)
larger‐sized
pouch‐type
//Sn+SnF
530
)
are
demonstrated.
