Journal of the American Chemical Society,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 28, 2025
The
broad
temperature
adaptability
associated
with
the
desolvation
process
remains
a
formidable
challenge
for
organic
electrolytes
in
rechargeable
metal
batteries,
especially
under
low-temperature
(LT)
conditions.
Although
traditional
approach
involves
utilizing
high
degree
of
anion
participation
solvation
structure,
known
as
weakly
(WSEs),
structure
these
is
highly
susceptible
to
fluctuations,
potentially
undermining
their
LT
performance.
To
address
this
limitation,
we
have
devised
an
innovative
electrolyte
that
harnesses
interplay
between
solvent
molecules,
effectively
blending
strong
and
weak
solvents
while
incorporating
mostly
unchanged
by
variations.
Remarkably,
competitive
coordination
two
molecules
introduces
local
disorder,
which
not
only
boosts
ionic
conductivity
but
also
prevents
salt
precipitation
solidification.
Therefore,
has
3.12
mS
cm-1
at
-40
°C.
Na3V2(PO4)3||Na
cells
demonstrated
reversible
capacity
95.9
mAh
g-1
°C,
87.6%
room
temperature,
well
stable
cycling
3400
cycles
retention
98.2%
-20
°C
5
C
600
96.1%
1
C.
This
study
provides
new
perspective
on
designing
regulating
temperature-robust
structures.
Advanced Energy Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 20, 2025
Abstract
Sodium‐metal
batteries
are
the
most
promising
low‐cost
and
high‐energy‐density
new
energy
storage
technology.
However,
sodium‐metal
anode
has
poor
reversibility,
which
can
be
optimized
by
constructing
robust
solid
electrolyte
interphase
(SEI).
Here,
a
concept
of
dual‐weak‐interaction
(DWIE)
is
demonstrated,
its
double‐layer
solvation
structure
composed
weakly
solvated
tetrahydrofuran
as
inner
layer,
dipole
interaction
introduced
in
outer
layer
dibutyl
ether.
This
dominated
contact
ion
pairs
aggregates
promote
to
deriving
inorganic‐rich
SEI
film,
resulting
smooth
dendrite‐free
deposition.
By
adjusting
molecular
configuration
ether
diisobutyl
ether,
further
enhanced,
stronger
solvating
effect.
Thus,
Na||Cu
cells
using
DWIE
achieved
high
Coulombic
efficiency
99.22%,
surpassing
design
strategies.
Meanwhile,
at
5C,
Na
3
V
2
(PO
4
)
(NVP)||Na
cell
achieves
stable
cycling
exceeding
3000
cycles.
Even
under
rigorous
conditions
≈8.8
mg
cm
−2
NVP
loading
50
µm
thickness
Na,
full
achieve
long
lifespan
217
The
pioneering
paves
way
for
crafting
readily
achievable,
cost‐effective,
eco‐friendly
electrolytes
tailored
SMBs,
offers
potential
applications
other
battery
systems.
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(43)
Опубликована: Июнь 24, 2023
Abstract
Despite
the
potential
to
become
next‐generation
energy
storage
technology,
practical
lithium–sulfur
(Li–S)
batteries
are
still
plagued
by
poor
cyclability
of
lithium‐metal
anode
and
sluggish
conversion
kinetics
S
species.
In
this
study,
lithium
tritelluride
(LiTe
3
),
synthesized
with
a
simple
one‐step
process,
is
introduced
as
novel
electrolyte
additive
for
Li–S
batteries.
LiTe
quickly
reacts
polysulfides
functions
redox
mediator
greatly
improve
cathode
utilization
active
materials
in
cathode.
Moreover,
formation
Li
2
TeS
/Li
Te‐enriched
interphase
layer
on
surface
enhances
ionic
transport
stabilizes
deposition.
By
regulating
chemistry
both
sides,
enables
stable
operation
anode‐free
only
0.1
m
concentration
conventional
ether‐based
electrolytes.
The
cell
retains
71%
initial
capacity
after
100
cycles,
while
control
23%.
More
importantly,
high
Te,
significantly
better
pouch
full‐cells
under
lean
conditions.
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Июнь 5, 2024
Abstract
The
exploration
of
post-Lithium
(Li)
metals,
such
as
Sodium
(Na),
Potassium
(K),
Magnesium
(Mg),
Calcium
(Ca),
Aluminum
(Al),
and
Zinc
(Zn),
for
electrochemical
energy
storage
has
been
driven
by
the
limited
availability
Li
higher
theoretical
specific
energies
compared
to
state-of-the-art
Li-ion
batteries.
Post-Li
metal||S
batteries
have
emerged
a
promising
system
practical
applications.
Yet,
insufficient
understanding
quantitative
cell
parameters
mechanisms
sulfur
electrocatalytic
conversion
hinder
advancement
these
battery
technologies.
This
perspective
offers
comprehensive
analysis
electrode
parameters,
including
S
mass
loading,
content,
electrolyte/S
ratio,
negative/positive
capacity
in
establishing
(Wh
kg
−1
)
post-Li
Additionally,
we
critically
evaluate
progress
investigating
via
homogeneous
heterogeneous
approaches
both
non-aqueous
Na/K/Mg/Ca/Al||S
aqueous
Zn||S
Lastly,
provide
critical
outlook
on
potential
research
directions
designing
Advanced Materials,
Год журнала:
2024,
Номер
36(35)
Опубликована: Июнь 28, 2024
Sulfurized
polyacrylonitrile
(SPAN)
recently
emerges
as
a
promising
cathode
for
high-energy
lithium
(Li)
metal
batteries
owing
to
its
high
capacity,
extended
cycle
life,
and
liberty
from
costly
transition
metals.
As
the
capacities
of
both
Li
SPAN
lead
relatively
small
electrode
weights,
weight
specific
energy
density
Li/SPAN
are
particularly
sensitive
electrolyte
weight,
highlighting
importance
minimizing
density.
Besides,
large
volume
changes
anode
require
inorganic-rich
interphases
that
can
guarantee
intactness
protectivity
throughout
long
cycles.
This
work
addresses
these
crucial
aspects
with
an
design
where
lightweight
dibutyl
ether
(DBE)
is
used
diluent
concentrated
bis(fluorosulfonyl)imide
(LiFSI)-triethyl
phosphate
(TEP)
solution.
The
designed
(d
=
1.04
g
mL
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Окт. 14, 2024
Rechargeable
batteries
with
high
durability
over
wide
temperature
is
needed
in
aerospace
and
submarine
fields.
Unfortunately,
Current
battery
technologies
suffer
from
limited
operating
temperatures
due
to
the
rapid
performance
decay
at
extreme
temperatures.
A
major
challenge
for
wide-temperature
electrolyte
design
lies
restricting
parasitic
reactions
elevated
while
improving
reaction
kinetics
low
Here,
we
demonstrate
a
temperature-adaptive
by
regulating
dipole-dipole
interactions
various
simultaneously
address
issues
both
subzero
This
approach
prevents
degradation
endowing
it
ability
undergo
adaptive
changes
as
varies.
Such
favors
form
solvation
structure
thermal
stability
rising
transits
one
that
salt
precipitation
lower
ensures
stably
within
range
of
‒60
−55
°C.
opens
an
avenue
design,
highlighting
significance
structures.
High
instability
sluggishness
electrolytes
pose
significant
barriers
towards
sodium-ion
batteries.
authors
report
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(9), С. 11585 - 11594
Опубликована: Фев. 26, 2024
The
ether-based
electrolytes
show
excellent
performance
on
anodes
in
sodium-ion
batteries
(SIBs),
but
they
still
poor
compatibility
with
the
cathodes.
Here,
ether
NaBF
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(44)
Опубликована: Июнь 24, 2024
Abstract
Room‐temperature
sodium–sulfur
(Na–S)
batteries
are
recognized
as
promising
candidates
for
next‐generation
scalable
energy
storage
systems
due
to
their
high
density
and
cost‐effectiveness.
However,
several
challenges
persist,
including
the
shuttle
effect
of
polysulfide
compatibility
sodium
metal
with
electrolytes.
Herein,
study
presents
a
novel
type
localized
high‐concentration
electrolyte
(LHCE),
utilizing
cost‐effective,
low‐density
nonfluorinated
diluent,
toluene,
in
contrast
conventional
fluorinated
diluents.
Based
on
functional
theory
calculations
stripping/plating
behavior,
toluene
demonstrates
better
reduction
stability
than
other
aromatic
solvents
different
substitutions.
Also,
compared
1,2,2‐tetrafluoroethyl‐2,2,3,3‐tetrafluoropropyl‐ether
(TTE)
exhibits
enhanced
metal.
Furthermore,
it
modifies
solvation
structure
by
favoring
anion‐dominated
species,
which
contributes
formation
robust
inorganic‐rich
solid‐electrolyte
interphase
(SEI)
Na‐ion
transport.
Consequently,
Na–S
cells
featuring
sulfurized
polyacrylonitrile
(SPAN)
cathode
developed
LHCE
exhibit
good
cycling
capacity.
The
work
strategy
developing
low‐cost
practical
batteries.
