Angewandte Chemie,
Год журнала:
2024,
Номер
136(42)
Опубликована: Июль 20, 2024
Abstract
Fast‐charging
capability
and
calendar
life
are
critical
metrics
in
rechargeable
batteries,
especially
silicon‐based
batteries
that
susceptible
to
sluggish
Li
+
desolvation
kinetics
HF‐induced
corrosion.
No
existing
electrolyte
simultaneously
tackles
both
these
pivotal
challenges.
Here
we
report
a
microscopically
heterogeneous
covalent
organic
nanosheet
(CON)
colloid
for
extremely
fast‐charging
long‐calendar‐life
Si‐based
lithium‐ion
batteries.
Theoretical
calculations
operando
Raman
spectroscopy
reveal
the
fundamental
mechanism
of
multiscale
noncovalent
interaction,
which
involves
mesoscopic
CON
attenuating
microscopic
‐solvent
coordination,
thereby
expediting
kinetics.
This
design
enables
capabilities
full
cell,
at
8
C
(83.1
%
state
charge)
10
(81.3
charge).
Remarkably,
demonstrates
record‐breaking
cycling
performance
(capacity
retention
92.39
after
400
cycles).
Moreover,
benefiting
from
robust
adsorption
mesoporous
towards
HF
water,
notable
improvement
is
observed
cell.
study
highlights
role
electrolytes
enhancing
Li‐ion
Our
work
offers
fresh
perspectives
on
with
interactions,
providing
insightful
guidance
development
alkali‐ion/metal
operating
under
harsh
environments.
RSC Advances,
Год журнала:
2025,
Номер
15(10), С. 7995 - 8018
Опубликована: Янв. 1, 2025
This
review
examines
the
limitations
of
LIBs
at
low
temperatures,
discusses
advancements
in
electrolyte
components
and
novel
formulations,
proposes
future
strategies
to
improve
performance
under
extreme
conditions.
Nano-Micro Letters,
Год журнала:
2025,
Номер
17(1)
Опубликована: Фев. 17, 2025
Abstract
Electrolytes
are
crucial
components
in
electrochemical
energy
storage
devices,
sparking
considerable
research
interest.
However,
the
significance
of
anions
electrolytes
is
often
underestimated.
In
fact,
have
significant
impacts
on
performance
and
stability
lithium
batteries.
Therefore,
comprehensively
understanding
anion
chemistry
importance.
Herein,
in-depth
comprehension
its
positive
effects
interface,
solvation
structure
Li-ions,
as
well
batteries
been
emphasized
summarized.
This
review
aims
to
present
a
full
scope
furnish
systematic
cognition
for
rational
design
advanced
better
with
high
density,
lifespan,
safety.
Furthermore,
insightful
analysis
perspectives
based
current
proposed.
We
hope
that
this
sheds
light
new
electrolytes.
Journal of the American Chemical Society,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 27, 2025
Current
lithium
batteries
experience
significant
performance
degradation
under
extreme
temperature
conditions,
both
high
and
low.
Traditional
wide-temperature
electrolyte
designs
typically
addressed
these
challenges
by
manipulating
the
solvation
sheath
selecting
solvents
with
melting/boiling
points.
However,
solvent-mediated
solutions,
while
effective
at
one
extreme,
invariably
fail
opposite
end
due
to
inherent
difficulties
in
maintaining
solvent
stability
across
wide
temperatures.
Herein,
we
report
use
of
main
salt
simultaneously
address
interfacial
extremely
low
This
approach
is
different
from
conventional
strategies.
As
a
proof
concept,
utilized
nitrate
(LiNO3)
establish
an
anion-controlled
structure
electric
double
layer.
The
formulated
electrolytes
exhibited
remarkable
extremes,
retaining
56.1%
capacity
-60
°C
sustaining
400
stable
cycles
80
°C.
In
contrast,
based
on
current
strategies
failed
operate
could
not
exceed
50
By
shifting
focus
rather
than
solvent,
our
work
offers
possibility
addressing
enduring
broad
range.
Advanced Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 20, 2024
Abstract
With
the
growing
demand
for
high‐voltage
and
wide‐temperature
range
applications
of
lithium‐ion
batteries
(LIBs),
requirements
electrolytes
have
become
increasingly
stringent.
While
fluorination
engineering
has
enhanced
performance
traditional
solvent
systems,
it
also
raised
concerns
regarding
cost,
environmental
hazards,
low
reduction
stability.
Through
strategic
molecular
bond
design,
a
novel
class
low‐temperature
(LT)
solvents—siloxanes—is
identified,
meeting
demands
LT
in
LIBs.
The
d‐p
conjugation
Si─O
enhances
voltage
resistance
weakens
Li
+
‐solvent
interactions.
By
modulating
number
conjugated
bonds,
type
anion
clusters
solvation
structure
can
be
controlled,
ultimately
leading
to
formation
LiF
Si─O‐rich
interfacial
layer
facilitating
rapid
conduction.
Consequently,
graphite||NCM811
pouch
cell
(2.3
Ah,
4.45
V)
with
siloxane‐based
electrolyte
retains
75.1%
room
temperature
capacity
(RTC)
at
−50
°C.
interface
kinetics
allow
superior
reversible
charging
retention
67.6%
−40
°C,
good
cycle
stability
−20
This
study
provides
new
insights
into
design
fortify
LIB
harsh
conditions.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(49)
Опубликована: Авг. 20, 2024
Abstract
Polyester‐based
electrolytes
formed
via
in
situ
polymerization,
have
been
regarded
as
one
of
the
most
promising
solid
electrolyte
systems.
Nevertheless,
it
is
still
a
great
challenge
to
address
issue
their
high
reactivity
with
metallic
lithium
anode
by
optimizing
components
and
properties
interphase
(SEI).
Herein,
new
class
N‐containing
additive,
isopropyl
nitrate
(ISPN)
that
can
be
miscible
ester
solvents
demonstrated,
chemically
stable
ion‐conductive
LiF‐Li
3
N
composite
SEI
constructed.
In
addition,
ISPN
induce
formation
anion‐enriched
solvation
structures
reduces
desolvation
barrier
Li
+
,
resulting
fast
transport
.
With
addition
ISPN,
ionic
conductivity
has
nearly
doubled,
reaching
5.3
×
10
−4
S
cm
−1
What's
more,
LiFePO
4
(LFP)|ISPN‐PTA|Li
cell
exhibits
exceptional
cycle
stability
charging
capabilities,
maintaining
cycling
for
850
cycles
at
C
rate.
Even
when
paired
high‐voltage
cathode,
LiNi
0.6
Co
0.2
Mn
O
2
(NCM622)|ISPN‐PTA|Li
achieves
an
impressive
capacity
retention
97.59%
after
165
5
C.
This
study
offers
novel
approach
ester‐based
polymer
electrolytes,
paving
way
toward
development
high‐energy
metal
battery
technologies.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 22, 2024
Abstract
The
development
of
rechargeable
lithium
batteries
(RLBs)
has
made
a
great
contribution
in
solving
the
problems
current
era,
such
as
energy
shortage
and
climate
change.
With
expanding
application
field
RLBs
from
portable
device
to
large‐scale
electric
equipment,
it
is
an
urgent
demand
for
operate
wide
range
temperature.
More
more
attention
been
paid
design
wide‐temperature
RLBs.
Therefore,
timely
critical
overview
latest
operating
at
temperatures
needed.
In
this
review,
in‐depth
understanding
on
how
temperature
affects
thermodynamics
lithium‐ion
transport
electrodes,
electrolytes,
electrode/electrolyte
interfaces
emphasized.
Recent
progress
probing
effects
electrochemical
performance
fading
comprehensively
discussed.
Different
strategies
widen
working
RLBs,
including
regulating
electrode
degradation,
interface
evolution,
electrolyte
solvation
chemistry
are
also
reviewed.
Finally,
outlook
potential
future
research
directions
proposed,
which
sheds
light
novel
electrodes
electrolytes
next‐generation
temperatures.
Chemical Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
Solvation
structures
significantly
affect
electrolyte
kinetics,
with
notable
enhancements
from
CIPs
to
SSIPs
AGGs.
Electrolytes
such
as
DOL
Ele.,
abundant
AGGs,
facilitate
ion
transport
and
desolvation
through
a
hopping-assisted
mechanism.
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 9, 2025
Abstract
Lithium
batteries,
favored
for
their
high
energy
density
and
long
lifespan,
are
staples
in
electric
vehicles,
portable
electronics,
aerospace.
A
key
component,
Li
salts,
aids
lithium
ion
migration
electrode
protection,
significantly
impacting
battery
performance.
Developing
an
ideal
salt,
balancing
stability,
solubility,
dissociation,
solvation,
eco‐friendliness,
remains
challenging.
Given
the
scarcity
of
relevant
reviews,
it
is
endeavored
here
to
present
a
novel
perspective
on
salt
chemistry,
offering
concise
roadmap
future
designs
innovations.
It
delved
into
trends,
opportunities,
design
principles,
evaluation
methodologies
related
with
particular
emphasis
organic
anionic
compositions.
Furthermore,
latest
most
representative
salts
from
intrinsic
structure
coordination
highlighting
unique
features
contributions
organized
presented.
Finally,
visionary
outlook
articulated
this
field,
exploring
avenues,
such
as
customizing
specific
applications,
synthesizing
demand,
discussing
potential
F‐free
alongside
electrochemical
window
challenges.
Here
served
strategic
compass,
addressing
shortcomings
existing
reviews
guiding
functionalized
salts.
