IET Energy Systems Integration,
Год журнала:
2024,
Номер
unknown
Опубликована: Авг. 27, 2024
Abstract
Due
to
the
availability
of
zinc
resources,
and
reduced
security
risks,
aqueous
zinc‐ion
batteries
(AZIBs)
are
potential
contenders
for
next‐generation
energy
storage
systems.
With
multi‐scene
application
AZIBs,
temperature
adaptation
electrolytes
poses
a
great
challenge.
However,
electrolyte
is
prone
freezing
in
sub‐zero
environments,
which
leads
undesirable
problems
such
as
ion
transfer
poor
electrode/electrolyte
interface,
resulting
sharp
deterioration
electrochemical
properties
AZIBs
cold
conditions
limited
practical
use
AZIBs.
Antifreeze
modification
strategies
have
gained
popularity
effective
ways
optimise
low‐temperature
behaviour
AZIB.
The
results
recent
studies
systematically
summarised
focusing
on
methods,
principles,
effects
achieved.
Firstly,
authors
describe
mechanism
failure
at
low
temperatures.
Subsequently,
antifreeze
summarised,
including
utilisation
high
salt
content,
design
organic
electrolytes,
adoption
additives,
building
hydrogel
electrolytes.
Finally,
issues
faced
by
temperatures
further
indicated
suggestions
provided
their
future
development.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(32)
Опубликована: Май 23, 2024
Abstract
Aqueous
Zn‐ion
batteries
are
an
attractive
electrochemical
energy
storage
solution
for
their
budget
and
safe
properties.
However,
dendrites
uncontrolled
side
reactions
in
anodes
detract
the
cycle
life
density
of
batteries.
Grain
boundaries
metals
generally
considered
as
source
above
problems
but
we
present
a
diverse
result.
This
study
introduces
ultra‐high
proportion
grain
on
zinc
electrodes
through
femtosecond
laser
bombardment
to
enhance
stability
metal/electrolyte
interface.
The
promotes
homogenization
growth
potential,
achieve
uniform
nucleation
growth,
thereby
suppressing
dendrite
formation.
Additionally,
abundant
active
sites
mitigate
during
process.
Consequently,
15
μm
Fs−Zn||MnO
2
pouch
cell
achieves
249.4
Wh
kg
−1
operates
over
60
cycles
at
depth‐of‐discharge
23
%.
recognition
favorable
influence
exerted
by
UP‐GBs
paves
new
way
other
metal
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Июнь 27, 2024
Abstract
Lithium‐ion
batteries
(LIBs)
suffer
from
energy
loss
and
safety
hazards
under
high‐rate
conditions,
because
of
the
sluggish
electrochemical
kinetics
unstable
interfacial
passivation.
Herein,
a
PC‐based
electrolyte
using
weakly
solvated
solvent
ethyl
trifluoroacetate
is
developed
to
improve
stability
in
LIBs.
A
microsolvating
competition
revealed
bulk
electrolyte,
forming
loose
Li
+
coordination
configuration
with
benign
affinity
high
ionic
conductivity.
Furthermore,
an
inorganic‐rich
interphase
constructed
on
graphite
anode,
affording
smooth
desolvation
reliable
Consequently,
NCM622/graphite
cell
shows
improved
cycling
(82.2%
after
200
cycles)
rate
capability
(83%
at
4C
compared
0.1C)
high‐voltage
4.5
V,
much
better
than
those
EC‐based
(76.2%
cycles
74%
4C).
Additionally,
affords
reversible
operation
–40
°C
while
fails
°C.
This
work
highlights
potential
solvation
structure
engineering
for
low‐energy‐barrier
electrolyte.
Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 24, 2025
Abstract
Achieving
durable
lithium
(Li)
metal
anodes
in
liquid
electrolytes
remains
challenging,
primarily
due
to
the
instability
of
formed
solid‐electrolyte
interphases
(SEIs).
Modulating
Li‐ion
solvation
structures
is
pivotal
forming
a
stable
SEI
for
stabilizing
Li
anodes.
Here
strategy
developed
fine‐tune
through
enhanced
dipole–dipole
interactions
between
Li‐ion‐coordinated
solvent
and
non‐Li‐ion‐coordinating
diluent,
creating
binary
salt
electrolyte.
The
weaken
coordination
Li‐ions
solvents
while
strengthening
interaction
dual
anions,
thereby
facilitating
transport
robust
anion‐derived
with
distinct
bilayer
structure.
Consequently,
electrolyte
exhibited
exceptional
electrochemical
performance
high
energy‐density
Li||LiNi
0.8
Mn
0.1
Co
O
2
(NMC811)
cells,
long
calendar
life,
cyclability
at
1
C,
reliable
operation
25
−20
°C,
it
also
demonstrat
remarkable
cycling
stability
Li||NMC811
pouch
cell
projected
energy
density
402
Wh
kg
−1
,
maintaining
80%
capacity
retention
over
606
cycles
under
practical
conditions.
Chemical Communications,
Год журнала:
2024,
Номер
60(74), С. 10046 - 10063
Опубликована: Янв. 1, 2024
This
review
focuses
on
the
role
of
different
COFs
as
solid-state
electrolytes,
aiming
to
guide
development
electrolyte
materials
and
battery
technology.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(48)
Опубликована: Июль 16, 2024
Abstract
Achieving
fast‐charging
capabilities
in
Li‐ion
batteries
(LIBs)—charging
80%
of
the
battery
capacity
within
15
minutes—while
maintaining
an
acceptable
cycle
life
remains
challenging
due
to
various
polarizations
occurring
at
elevated
charge
rates.
Such
a
goal
is
more
tough
subzero,
as
temperature
reduction
slows
kinetics
process
including
electrolyte
mass
transport
and
electrode
transfer,
substantially
increasing
risk
lithium
plating.
Herein,
it
found
that
adding
LiFSI
LiPF
6
carbonate‐based
alters
Li
+
solvation
structure,
endowing
dual‐salt
with
higher
diffusion
coefficient
lower
desolvation
energy.
Benefit
from
smaller
structural
change
formation
robust,
conductive
solid
interphase,
12Ah‐pouch
cells
based
on
LiNi
0.52
Co
0.2
Mn
0.28
O
2
cathodes
graphite
anodes
demonstrate
stable
cycling
performance
across
wide
range
−20
50
℃:
charging
89%
93%
pouch
cell
4
minutes
25
℃
82%
℃,
retention
94%
after
2000
cycles
8C
0
350
4C.
This
work
might
offer
new
insights
into
enhancing
LIBs
under
extreme
conditions.
Angewandte Chemie,
Год журнала:
2024,
Номер
136(32)
Опубликована: Май 23, 2024
Abstract
Aqueous
Zn‐ion
batteries
are
an
attractive
electrochemical
energy
storage
solution
for
their
budget
and
safe
properties.
However,
dendrites
uncontrolled
side
reactions
in
anodes
detract
the
cycle
life
density
of
batteries.
Grain
boundaries
metals
generally
considered
as
source
above
problems
but
we
present
a
diverse
result.
This
study
introduces
ultra‐high
proportion
grain
on
zinc
electrodes
through
femtosecond
laser
bombardment
to
enhance
stability
metal/electrolyte
interface.
The
promotes
homogenization
growth
potential,
achieve
uniform
nucleation
growth,
thereby
suppressing
dendrite
formation.
Additionally,
abundant
active
sites
mitigate
during
process.
Consequently,
15
μm
Fs−Zn||MnO
2
pouch
cell
achieves
249.4
Wh
kg
−1
operates
over
60
cycles
at
depth‐of‐discharge
23
%.
recognition
favorable
influence
exerted
by
UP‐GBs
paves
new
way
other
metal
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.
