ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
17(2), С. 3467 - 3477
Опубликована: Дек. 31, 2024
This
work
develops
1,1′-oxalyldiimidazole
(ODI)
as
a
functional
electrolyte
additive.
film-forming
additive
improves
the
wide
range
of
temperature
and
rate
performances
LiNi0.8Co0.1Mn0.1O2/graphite
(NCM811)
batteries.
After
1200
cycles
at
room
(25
°C),
discharge
capacity
retention
is
51.95%
for
battery
with
blank
electrolyte,
it
93.18%
that
an
ODI-containing
electrolyte.
With
0.1%
ODI,
increases
from
0
to
75.89%
after
500
45
°C
48.51
95.54%
300
−10
°C.
In
addition,
performance
also
enhanced
by
introduction
ODI.
spectroscopic
characterization,
improvement
electrochemical
ODI
supported.
It
demonstrated
tends
preferentially
decompose
on
electrodes
then
participates
in
construction
stable
interfacial
film
low
impedance,
resulting
performance.
Not
only
does
this
develop
imidazole-based
but
inspires
innovative
approaches
creating
additives
can
enhance
Advanced Energy Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 30, 2024
Abstract
Silicon/carbon
(Si/C)
composites
present
great
potential
as
anode
materials
for
rechargeable
batteries
since
the
integrate
high
specific
capacity
and
preferable
cycling
stability
from
Si
C
components,
respectively.
Functional
Si/C
based
on
lignocellulose
have
attracted
wide
attention
due
to
advantages
lignocellulose,
including
sustainability
property,
flexible
structural
tunability,
diverse
physicochemical
functionality.
Although
flourishing
development
of
boosts
studies
lignocellulose‐derived
with
electrochemical
performance,
publications
that
comprehensively
clarify
design
functionalization
these
high‐profile
are
still
scarce.
Accordingly,
this
review
first
systematically
summarizes
recent
advances
in
after
a
brief
clarification
about
selection
sources
self
extraneous
sources.
Afterward,
strategies,
nanosizing,
porosification,
magnesiothermic
reduction
material
well
heteroatom
modification
material,
specifically
highlighted.
Besides,
applications
Si/C‐based
elaborated.
Finally,
discusses
challenges
prospects
application
energy
storage
provides
nuanced
viewpoint
regarding
topic.
Abstract
With
the
expanding
adoption
of
large‐scale
energy
storage
systems
and
electrical
devices,
batteries
supercapacitors
are
encountering
growing
demands
challenges
related
to
their
capability.
Amorphous/crystalline
heterostructured
nanomaterials
(AC‐HNMs)
have
emerged
as
promising
electrode
materials
address
these
needs.
AC‐HNMs
leverage
synergistic
interactions
between
amorphous
crystalline
phases,
along
with
abundant
interface
effects,
which
enhance
capacity
output
accelerate
mass
charge
transfer
dynamics
in
electrochemical
(EES)
devices.
Motivated
by
elements,
this
review
provides
a
comprehensive
overview
synthesis
strategies
advanced
EES
applications
explored
current
research
on
AC‐HNMs.
It
begins
summary
various
Diverse
devices
AC‐HNMs,
such
metal‐ion
batteries,
metal–air
lithium–sulfur
supercapacitors,
thoroughly
elucidated,
particular
focus
underlying
structure–activity
relationship
among
amorphous/crystalline
heterostructure,
performance,
mechanism.
Finally,
perspectives
for
proposed
offer
insights
that
may
guide
continued
development
optimization.
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 2, 2025
Abstract
The
high‐capacity
silicon
(Si)
anode
usually
suffers
from
rapid
capacity
decay
and
low
Coulombic
efficiency
in
carbonate
electrolytes
resulting
large
volume
expansion
unstable
solid
electrolyte
interphase
(SEI).
In
addition,
the
sluggish
electrode
kinetics
routine
at
subzero
temperatures
severely
hampers
operational
capabilities
of
Si‐based
batteries.
Herein,
a
rational
design
strategy
is
reported
to
tune
solvation
chemistry
interfacial
behavior
for
high‐performance
Si
anode.
stability
electrochemical
reaction
can
be
enhanced
simultaneously
both
room
temperature
ultralow
by
combining
two
kinds
ether‐based
solvents
(cyclopentylmethyl
ether
tetrahydrofuran),
which
enables
high
cation
conductivity,
Li‐ion
desolvation
barrier,
formation
robust
LiF‐elastic
polymer
SEI.
Consequently,
optimized
extends
cyclability
anode,
maintaining
more
than
80%
retention
over
200
cycles
−20
−35
°C.
Even
−40
°C,
still
delivers
reversible
2157.0
mAh
g
−1
,
showing
highest
68.5%
up
date
relative
its
room‐temperature
capacity.
Moreover,
assembled
full
cells
Si||LiFePO
4
Si||LiNi
0.8
Co
0.1
Mn
O
2
demonstrate
excellent
performance
with
no
degradation
180
120
cycles,
respectively,
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 12, 2025
Abstract
Lithium‐ion
batteries
are
of
great
significance
in
improving
people's
lives
by
offering
reliable,
long‐lasting,
and
high‐capacity
power
solutions.
However,
safety
concerns,
particularly
those
related
to
electrolyte
leakage
under
harsh
conditions,
pose
significant
obstacles
their
practical
applications.
In
this
context,
a
biocompatible
deep
eutectic
(DEE)
is
presented
formulated
blending
2,6‐dimethylpyrazine
(DMPY)—a
natural
ingredient
approved
the
World
Health
Organization
(WHO)
due
its
origin—with
lithium
bis(trifluoromethanesulfonyl)imide
(LiTFSI)
specific
molar
ratios.
Benefitting
from
abundant
N
atoms,
DMPY
molecule
effectively
drives
Li─N
coordination
with
Li
+
cations,
forms
hydrogen
bonds
TFSI
−
anions,
consequently
enhances
dissociation
LiTFSI—all
which
trigger
formation
DEE.
This
DEE
solution
demonstrates
remarkable
performance
characteristics,
including
high
transference
number
(0.67),
substantial
ion
conductivity
(0.57
mS
cm
−1
at
30
°C),
moderate
oxidation
voltage
(4.10
V
vs
Li/Li
).
These
attributes
complemented
interface
stability
long‐term
cycling
across
broad
range
rates,
notably
rate
10
C,
ascribed
generation
robust
organic–inorganic
gradient
solid‐electrolyte
interphase.
work
opens
intriguing
perspectives
design
novel
electrolytes
for
demanded
lithium‐ion
while
ensuring
good
biocompatibility.
Advanced Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 17, 2025
Abstract
The
development
of
high‐energy‐density
and
high‐safety
lithium‐ion
batteries
requires
advancements
in
electrolytes.
This
study
proposes
a
high‐entropy
ionic
liquid/ether
composite
electrolyte,
which
is
composed
N
‐propyl‐
‐methylpyrrolidinium
bis(trifluoromethanesulfonyl)imide
(PMP–TFSI)
liquid,
dimethoxymethane
(DME),
lithium
difluoro(oxalato)borate
(LiDFOB),
fluoroethylene
carbonate
(FEC),
1,1,2,2‐tetrafluoroethyl‐2,2,3,3‐tetrafluoropropyl
ether
(TTE).
In
this
unique
coordination
structure
forms,
where
Li
+
surrounded
by
highly
complex
environment
consisting
DME,
FEC,
TTE,
TFSI
−
,
DFOB
PMP
.
effects
solution
on
the
solid‐electrolyte
interphase
chemistry
desolvation
kinetics
are
examined.
proposed
electrolyte
has
low
flammability,
high
thermal
stability,
negligible
corrosivity
toward
an
Al
current
collector,
ability
to
withstand
potential
up
5
V.
Importantly,
compatible
with
graphite
SiO
x
anodes,
as
well
high‐nickel
LiNi
0.8
Co
0.1
Mn
O
2
cathode.
Operando
X‐ray
diffraction
data
confirm
that
co‐intercalation
DME
into
lattice,
long‐standing
challenge,
eliminated
electrolyte.
A
4.5‐V
//graphite
full
cell
shown
have
superior
specific
capacity,
rate
capability,
cycling
demonstrating
great
for
practical
applications.
