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.
Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 21, 2025
Abstract
Lithium
iron
phosphate
(LiFePO
4
)
batteries
are
increasingly
adopted
in
grid‐scale
energy
storage
due
to
their
superior
performance
and
cost
metrics.
However,
as
the
desired
power
further
densified,
lifespan
of
LiFePO
is
significantly
limited,
mainly
because
lithium
plating
severely
occurs
on
graphite
anode.
Here,
first
characteristics
both
energy‐type
power‐type
electrodes
single‐layer
design
deciphered.
Based
these
findings,
a
suitable
two‐layer
with
top
layer
one
bottom
layer,
disclosed.
Such
configuration
effectively
inhibits
throughout
electrode,
drastically
increasing
an
energy‐
power‐densified
battery.
The
assembled
pouch
cell
density
161.5
Wh
kg
−1
,
delivers
capacity
retention
rate
90.8%
after
2000
cycles
at
2
C.
This
work
provides
valuable
insights
into
failure
mechanism
electrodes,
but
also
innovative
strategies
electrode
engineering
for
extending
batteries’
horizon.
Lithium‐ion
batteries
(LIBs),
widely
used
in
electric
vehicles
(EVs)
and
other
applications,
are
increasingly
expected
to
deliver
higher
energy
densities
stable
performance
over
a
wide
temperature
range,
posing
stringent
challenges
for
advanced
electrolyte
design.
However,
achieving
these
properties
remains
challenging
with
currently
commercialized
ethylene
carbonate
(EC)‐based
electrolytes.
Herein,
propylene
(PC)‐based
system
is
reported,
employing
hexafluorobenzene
(HFB)
fluoroethylene
(FEC)
as
synergistic
additives.
Specifically,
HFB
facilitates
compatibility
graphite
anodes
through
selective
interfacial
adsorption,
while
the
decomposition
of
FEC
stabilizes
solid
interphase
(SEI),
mitigating
formation
high‐impedance
interfaces.
This
tailored
exhibits
superior
ionic
conductivity,
excellent
oxidative
stability,
broad
tolerance.
When
validated
at
4.5
V,
high‐loading
NCM811/graphite
cells
achieve
nearly
full
capacity
100
cycles
low
temperatures
(−20
°C),
pouch
retaining
80%
their
after
470
cycles.
These
findings
underscore
effectiveness
strategic
additive
engineering
advancing
development
PC‐based
electrolytes
practical
LIBs.
Nanomaterials,
Год журнала:
2025,
Номер
15(11), С. 820 - 820
Опубликована: Май 29, 2025
The
performance
degradation
of
sodium-ion
batteries
(SIBs)
in
extremely
low-temperature
conditions
has
faced
significant
challenges
for
energy
storage
applications
extreme
environments.
This
review
systematically
establishes
failure
mechanisms
that
govern
the
SIBs,
including
significantly
increased
electrolyte
viscosity,
lattice
distortion
and
adverse
phase
transitions
electrodes,
sluggish
desolvation
kinetics
at
solid
interface.
Herein,
we
specifically
summarize
a
series
multi-scale
optimization
strategies
to
address
these
challenges:
(1)
optimizing
low-freezing-point
solvent
components
regulating
solvation
structures
increase
ionic
diffusion
conductivity;
(2)
enhancing
hierarchical
structure
electrodes
electron
distribution
density
improve
structural
stability
capacity
retention
low
temperatures;
(3)
constructing
an
inorganic-rich
interphase
induce
uniform
ion
deposition,
reduce
barrier,
inhibit
side
reactions.
provides
comprehensive
overview
SIB
coupled
with
advanced
characterization
first-principles
simulations.
Furthermore,
highlight
solvation-shell
dynamics,
charge
transfer
kinetics,
metastable-phase
evolution
atomic
scale,
along
critical
pathways
overcoming
limitations.
aims
establish
fundamental
principles
technological
guidelines
deploying
SIBs
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
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.
