Chemical Communications,
Journal Year:
2024,
Volume and Issue:
60(38), P. 5070 - 5073
Published: Jan. 1, 2024
Solid-state
lithium-oxygen
batteries
offer
great
promise
in
meeting
the
practical
demand
for
high-energy-density
and
safe
energy
storage.
We
have
developed
fibrous
gel
polymer
electrolytes
(GPEs)
using
a
polyacrylonitrile
(PAN)
matrix
Nano Letters,
Journal Year:
2024,
Volume and Issue:
24(23), P. 7125 - 7133
Published: May 29, 2024
Wearable
sensors
are
experiencing
vibrant
growth
in
the
fields
of
health
monitoring
systems
and
human
motion
detection,
with
comfort
becoming
a
significant
research
direction
for
wearable
sensing
devices.
However,
weak
moisture-wicking
capability
sensor
materials
leads
to
liquid
retention,
severely
restricting
sensors.
This
study
employs
pattern-guided
alignment
strategy
construct
microhill
arrays,
endowing
triboelectric
directional
capability.
Within
2.25
s,
can
quickly
directionally
remove
droplets,
driven
by
Laplace
pressure
differences
wettability
gradient.
The
exhibit
excellent
performance,
enabling
rapid
response/recovery
(29.1/37.0
ms),
thereby
achieving
real-time
online
respiration
movement
states.
work
addresses
long-standing
challenge
insufficient
driving
force
flexible
electronic
materials,
holding
implications
enhancing
application
potential
skin
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(18)
Published: Jan. 25, 2024
Abstract
The
heterogeneity,
species
diversity,
and
poor
mechanical
stability
of
solid
electrolyte
interphases
(SEIs)
in
conventional
carbonate
electrolytes
result
the
irreversible
exhaustion
lithium
(Li)
during
cycling,
hindering
practical
applications
Li
metal
batteries
(LMBs).
Herein,
this
work
proposes
a
solvent‐phobic
dynamic
liquid
interphase
(DLEI)
on
(Li–PFbTHF
(perfluoro‐butyltetrahydrofuran))
surface
that
selectively
transports
salt
induces
salt‐derived
SEI
formation.
DLEI
with
C–F‐rich
groups
dramatically
reduces
side
reactions
between
Li,
solvents,
humid
air,
forming
LiF/Li
3
PO
4
‐rich
SEI.
In
situ
electrochemical
impedance
spectroscopy
Ab‐initio
molecular
dynamics
demonstrate
effectively
stabilizes
interface
electrolyte.
Specifically,
LiFePO
||Li–PFbTHF
cells
deliver
80.4%
capacity
retention
after
1000
cycles
at
1.0
C,
excellent
rate
(108.2
mAh
g
−1
5.0
C),
90.2%
550
C
full‐cells
(negative/positive
(N/P)
ratio
8)
high
loadings
(15.6
mg
cm
−2
)
addition,
0.55
Ah
pouch
cell
252.0
Wh
kg
delivers
stable
cycling.
Hence,
study
provides
an
effective
strategy
for
controlling
to
improve
cycling
performances
carbonate‐based
LMBs.
Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
53(6), P. 3134 - 3166
Published: Jan. 1, 2024
The
utilization
of
computational
approaches
at
various
scales,
including
first-principles
calculations,
MD
simulations,
multi-physics
modeling,
and
machine
learning
techniques,
has
been
instrumental
in
expediting
the
advancement
SSEs.
Polymer Chemistry,
Journal Year:
2024,
Volume and Issue:
15(6), P. 473 - 499
Published: Jan. 1, 2024
This
review
provides
a
comprehensive
overview
of
solid-state
polymer
electrolytes
performance
characteristics
various
chemical
structures
such
as
ethers,
esters,
nitrile
and
vinylidene
fluoride.
ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(21), P. 13662 - 13674
Published: May 16, 2024
Porous
copper
(Cu)
current
collectors
show
promise
in
stabilizing
Li
metal
anodes
(LMAs).
However,
insufficient
lithiophilicity
of
pure
Cu
and
limited
porosity
three-dimensional
(3D)
porous
structures
led
to
an
inefficient
Li–Cu
composite
preparation
poor
electrochemical
performance
anodes.
Herein,
we
propose
a
Cu-CuZn
(DG-CCZ)
host
for
tackle
these
issues.
This
architecture
features
pore
size
distribution
lithiophilic-lithiophobic
characteristics
designed
gradient
from
the
inside
outside
anode
structure.
dual-gradient
exhibits
exceptional
capillary
wettability
molten
provides
high
up
66.05%.
design
promotes
preferential
deposition
interior
structure
during
battery
operation,
effectively
inhibiting
dendrite
formation.
Consequently,
all
cell
systems
achieve
significantly
improved
cycling
stability,
including
half-cells,
Li–Li
symmetric
cells,
Li-LFP
full
cells.
When
paired
synergistically
with
double-coated
LiFePO4
cathode,
pouch
configured
multiple
electrodes
demonstrates
impressive
discharge
capacity
159.3
mAh
g–1
at
1C.
We
believe
this
study
can
inspire
future
3D
enhanced
utilization
efficiency
facilitate
development
high-energy
batteries.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 10, 2024
Abstract
The
preparation
of
high‐performance
and
fire‐safe
electrolytes
for
flexible
quasi‐solid‐state
supercapacitors
is
challenging.
In
this
work,
a
novel
multifunctional
deep
eutectic
solvent
gel
(DESG)
fabricated
using
acrylic
acid
urea
as
hydrogen
bond
donors
choline
chloride
acceptor.
DESG
shows
high
ionic
conductivity
(0.552
S
m
−1
),
good
electrochemical
performance
(specific
capacitance:
106.8
F
g
wide
operating
temperature
range
(−20–90
°C),
being
promising
candidate
solid‐state
supercapacitors.
Furthermore,
it
exhibits
thermoelectric
conversion
capability
(Seebeck
coefficient:
1.56
mV
K
ideal
capacitors
fire‐warning
sensors.
prepared
rapidly
self‐extinguishes
after
removal
from
fire,
reaching
limiting
oxygen
index
value
38.0%
demonstrating
its
excellent
flame
retardancy.
addition,
has
self‐healing
(healing
efficiency
84.3%).
work
provides
new
insights
into
the
application
fire‐safety
eutectogels