Journal of the American Chemical Society,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 17, 2025
Currently,
ether-
and
carbonate-based
electrolytes
have
been
extensively
studied
for
applications
in
harsh
conditions;
however,
it
is
difficult
to
develop
a
suitable
electrolyte
system
that
compatible
with
both
high
low
temperatures.
Herein,
the
first
time,
cyclic
sulfite-based
formulated
successfully
achieve
wide-temperature
operation
of
sodium-ion
batteries
(SIBs)
from
-60
60
°C.
By
precisely
modulating
ion-dipole
interactions,
dominant
ion
coordination
states
are
screened
directionally
accelerate
desolvation
process
simultaneously
maintain
sufficient
electrostatic
constraints,
laying
foundation
high-
low-temperature
compatibility.
And
coordinated
anions
additives
synergistically
decompose
enable
inorganic-rich
interphases
robustness
favorable
diffusion,
extending
voltage
window
temperature
range.
As
result,
Na3V2(PO4)2O2F
demonstrates
58
mA
h
g-1
at
-50
°C
while
stably
cycling
300
cycles
80%
capacity
retention.
Additionally,
Na3V2(PO4)3
NaFe1/3Ni1/3Mn1/3O2
cathodes
also
exhibit
discharge
specific
capacities
50
65
Eventually,
Ah-class
pouch
cell
displays
0.64
A
56%
retention
-40
In
short,
introduced
formulation
enhances
wide
SIBs,
shedding
light
on
development
all-weather
systems.
Advanced Functional Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 16, 2025
Abstract
Sodium‐ion
batteries
(SIBs)
have
been
considered
as
promising
candidates
for
large‐scale
energy
storage
systems
and
low‐speed
electric
vehicles
due
to
abundant
sodium
resources
low
cost.
Phosphate‐based
cathodes
stand
out
their
high
voltages,
structural
stability,
superior
safety,
etc.
However,
large
molecular
weight
limits
the
overall
capacity,
compromising
density
practical
applications.
Recent
advancements
in
multi‐electron
reactions
based
on
transition
metal
(TM)
ions
provide
a
pathway
achieve
both
stability.
This
review
discusses
fundamental
principles
behind
of
phosphate‐based
from
perspectives
electrochemistry
materials
science.
The
key
factors,
such
conservation
matter
charge,
thermodynamic,
kinetic
feasibility,
are
addressed
activating
regulating
reactions,
aiming
capacity
exceeding
170
mAh
g
−1
.
current
progress
NASICON‐type
phosphate
is
summarized,
challenges
associated
with
pyrophosphate
mixed
analyzed
reactions.
Finally,
future
development
high‐energy
provided.
Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 25, 2025
Abstract
Highly
flammable
carbonate
electrolytes
induce
significant
safety
risk
for
lithium‐ion
batteries
(LIBs),
raising
concerns
about
their
suitability
large‐scale
applications.
In
contrast,
non‐flammable
phosphate
offer
a
potential
solution,
yet
the
untamed
strong
interaction
of
Li
+
‐phosphates
and
inefficient
diffusion
result
in
sluggish
reaction
kinetics,
which
restricts
operation
Ah‐level
LIBs
to
rates
below
0.2C.
Herein,
chelating
solvent‐mediated
ion‐solvent
coordinated
structure
is
designed
modulate
interaction.
This
innovative
approach
enables
high‐efficiency
pseduo‐structrural
diffusion,
similar
that
observed
high
concentration
electrolytes,
while
maintaining
standard
1
mol
L
−1
achieving
Li⁺
conductivity.
The
operating
rate
graphite|LiFePO
4
cells
increased
from
0.2C
2C,
with
Ah
25
retaining
73.9%
71.0%
capacity
after
1000
600
cycles,
respectively.
Additionally,
maximum
temperature
during
nail
penetration
significantly
reduced
338.9
200
°C.
strategy
provides
promising
tuition
developing
advanced
electrolytes.
Abstract
Lithium‐ion
batteries
(LIBs)
and
sodium‐ion
(SIBs)
have
recently
received
considerable
attention
in
electrical
energy
storage
(EES)
systems
due
to
their
sustainability,
high
density,
superior
conversion
efficiency.
However,
with
the
expansion
of
application
scenarios,
ability
operate
under
extreme
conditions,
especially
low
temperatures,
is
becoming
increasingly
important.
Therefore,
extending
operating
temperature
electrochemically
stable
safe
LIBs
SIBs
has
become
a
critical
research
topic.
In
this
review,
failure
mechanism
conditions
at
same
time
problems
faced
by
electrolyte
electrode
materials
are
discussed,
various
targeted
optimization
strategies
proposed.
Additionally,
performance
such
environments
compared,
drawing
an
instructive
understanding.
Finally,
summary
perspective
presented
for
improving
battery
electrochemical
respectively.
Overall,
review
aims
provide
design
guidelines
future
conditions.
Chemical Communications,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
The
properties
of
different
NaPF
6
electrolyte
concentrations
have
been
studied,
finding
1
M
in
EC:DEC
gives
the
highest
bulk
conductivity.
However,
sodium-ion
cells,
lower
gave
similar
cycling
performance.
