Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 5, 2025
Abstract
While
graphite
anodes
hold
promise
for
potassium‐ion
batteries
(PIBs),
their
practical
implementation
faces
critical
challenges
stemming
from
mechanical
degradation
and
interfacial
compatibility
in
carbonate
ester
electrolytes.
Herein,
a
hierarchical
porous
carbon
architecture
derived
renewable
biomass
precursors
with
stress‐resilient
characteristics
are
developed
to
enhance
structural
integrity
cyclability
PIBs.
The
synergistic
combination
of
homogeneous
shell
frameworks
enables
the
anode
form
an
integrated
solid
electrolyte
interphase
uniform
stress
distribution
ester‐based
electrolyte.
optimized
delivers
high
reversible
capacity
170.3
mAh
g
−1
at
200
mA
,
retention
84.0%
after
600
cycles.
Remarkably,
full
cells
integrating
Mn‐based
layered
oxides
Prussian
blue
analogue
cathodes
demonstrate
70.1%
70.8%
This
work
establishes
biomass‐to‐device
engineering
paradigm
sustainable
energy
storage
systems,
offering
fundamental
insights
into
interface‐structure‐property
relationships
alkali‐metal
ion
batteries.
Advanced Energy Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 20, 2025
Abstract
Sodium‐metal
batteries
are
the
most
promising
low‐cost
and
high‐energy‐density
new
energy
storage
technology.
However,
sodium‐metal
anode
has
poor
reversibility,
which
can
be
optimized
by
constructing
robust
solid
electrolyte
interphase
(SEI).
Here,
a
concept
of
dual‐weak‐interaction
(DWIE)
is
demonstrated,
its
double‐layer
solvation
structure
composed
weakly
solvated
tetrahydrofuran
as
inner
layer,
dipole
interaction
introduced
in
outer
layer
dibutyl
ether.
This
dominated
contact
ion
pairs
aggregates
promote
to
deriving
inorganic‐rich
SEI
film,
resulting
smooth
dendrite‐free
deposition.
By
adjusting
molecular
configuration
ether
diisobutyl
ether,
further
enhanced,
stronger
solvating
effect.
Thus,
Na||Cu
cells
using
DWIE
achieved
high
Coulombic
efficiency
99.22%,
surpassing
design
strategies.
Meanwhile,
at
5C,
Na
3
V
2
(PO
4
)
(NVP)||Na
cell
achieves
stable
cycling
exceeding
3000
cycles.
Even
under
rigorous
conditions
≈8.8
mg
cm
−2
NVP
loading
50
µm
thickness
Na,
full
achieve
long
lifespan
217
The
pioneering
paves
way
for
crafting
readily
achievable,
cost‐effective,
eco‐friendly
electrolytes
tailored
SMBs,
offers
potential
applications
other
battery
systems.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 5, 2024
Lithium
(Li)
metal
batteries
with
remarkable
energy
densities
are
restrained
by
short
lifetime
and
low
Coulombic
efficiency
(CE),
resulting
from
the
accumulative
Li
dendrites
dead
during
cycling.
Here,
we
prepared
a
new
three-dimensional
(3D)
covalent
organic
framework
(COF)
dense
lithiophilic
sites
(heteoatom
weight
contents
of
32.32
wt
%)
as
an
anodic
protective
layer
batteries.
The
3D
COF
was
synthesized
using
[6+4]
synthesis
strategy
inducing
flexible
6-connected
cyclotriphosphazene
derivative
aldehyde
4-connected
porphyrin-based
tetraphenylamines.
Both
phosphazene
porphyrin
rings
in
served
electron-rich
sites,
enhancing
homogeneous
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 28, 2025
Abstract
Reducing
excess
electrolytes
offers
a
promising
approach
to
improve
the
specific
energy
of
electrochemical
storage
devices.
However,
using
lean
presents
significant
challenge
for
porous
electrode
materials
due
heterogeneous
wetting.
The
spontaneous
wetting
nano‐
or
meso‐pores
within
particles,
though
seldom
discussed,
adversely
affects
under
electrolyte
conditions.
Herein,
this
undesired
behavior
is
mitigated
by
enlarging
pore‐throat
ratio,
enabling
Li‐rich
layered
oxide
function
effectively
at
very
low
electrolyte/capacity
(E/C)
ratio
1.4
g
Ah
−1
.
resulting
pouch
cell
achieves
606
Wh
kg
and
retains
80%
capacity
(75%
energy)
after
70
cycles.
Through
imaging
techniques
molecular
dynamics
simulations,
it
demonstrated
that
determines
permeability
particles.
By
elucidating
pore‐relating
mechanisms,
work
unveils
potential
manipulating
pore
structures
in
materials,
an
can
be
applied
other
devices
including
semi‐solid‐state
lithium
batteries.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 5, 2025
Abstract
Traditional
aqueous
electrolytes
have
a
limited
electrochemical
stability
window
due
to
the
decomposition
voltage
of
water
(≈1.23
V).
“Water‐in‐Salt”
(WIS)
are
developed,
which
expand
from
1.23
3
V
and
sparked
global
surge
research
in
batteries.
This
breakthrough
revealed
novel
aspects
solvation
structure,
ion
transport
mechanisms,
interfacial
properties
WIS
electrolytes,
marking
start
new
era
solution
chemistry
that
extends
beyond
traditional
dilute
has
implications
across
electrolyte
research.
In
this
review,
current
mechanistic
understanding
their
derivative
designs,
focusing
on
construction
structures
is
presented.
The
insights
gained
limitations
encountered
bulk
structure
engineering
further
discussed.
Finally,
future
directions
for
advancing
design
proposed.
Advanced Energy Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 21, 2025
Abstract
One
focal
area
of
contemporary
organic
mixed
ionic‐electronic
conductor
(OMIEC)
research
relates
to
utilization
dual‐conductive
properties
enhance
the
ion/electron
transfer
kinetics
for
energy
storage
applications.
Insight
regarding
OMIEC
response
toward
electrolyte
anion
and
solvent
used
in
lithium‐ion
batteries
(LIBs),
however,
is
limited.
Here,
first
time,
solvent‐phobic
ionophilic
(SP‐IP)
OMIEC,
poly[3‐(potassium‐4‐butanoate)thiophene‐2,5‐diyl]
(P3KBT),
are
revealed
through
comprehensive
evaluation
characterization.
The
characteristics
arise
from
cooperation
dispersive
interaction,
polar
hydrogen‐bonding
between
P3KBT
solvent.
nature
driven
by
electrostatic
interactions
side
chain
carboxylate
groups
LiPF
6
,
reversible
electrochemical
doping/de‐doping
polythiophene
backbone
with
PF
⁻
.
SP‐IP
induce
formation
a
LiF‐
rich
Li
2
CO
3
‐
limited
cathode
interphase
(CEI)
layer
when
coating
applied
active
material
surface,
significantly
improving
half‐cell
life
over
1500
cycles
at
2C.
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 8, 2025
Abstract
The
high‐energy‐density
Li
metal
batteries
require
high‐voltage
cathode,
low
negative/positive
capacity
(N/P)
ratio
and
lean
electrolyte.
Despite
the
all‐fluorinated
electrolytes
with
severe
corrosion,
development
of
ester
is
stagnant
due
to
incompatibility
solvent
anode.
Hence,
various
electrolyte
additives
have
been
developed.
Among
them,
LiNO
3
considered
as
most
effective
additive
for
improving
reversibility
deposition.
Unfortunately,
their
solubility
into
extremely
low.
This
investigation
suggests
that
strong
ionic
bonds
in
solvation
energy
are
main
triggers
insolubility
a
new
organic
nitrate
salt
(N‐propyl‐N‐methylpyrrolidinium
(Py
13
NO
))
large
cations
liner
(dipropyleneglycol
methyl
ether
acetate
(DPGMEA))
designed,
which
integrates
ethereal
molecular
backbones
solvent.
Consequently,
containing
1.2
m
lithium
bis(fluorosulfonyl)imide
(LiFSI),
0.3
Py
0.1
disfluorophosphate
(LiPO
2
F
)
fluoroethylene
carbonate
(FEC):DPGMEA
(2:8)
showcases
excellent
electrochemical
performance
batteries.
Eventually,
“1
Ah
level”
Li||LiNi
0.8
Co
Mn
O
(NCM811)
pouch
cell
(N/P
≈1.2;
electrolyte/capacity
(E/C)
≈2.5
g
−1
exhibits
cycle
life
over
150
times
designed
