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.
Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
62(49)
Опубликована: Окт. 17, 2023
Ether-based
electrolytes
are
promising
for
secondary
batteries
due
to
their
good
compatibility
with
alkali
metal
anodes
and
high
ionic
conductivity.
However,
they
suffer
from
poor
oxidative
stability
toxicity,
leading
severe
electrolyte
decomposition
at
voltage
biosafety/environmental
concerns
when
leakage
occurs.
Here,
we
report
a
green
ether
solvent
through
rational
design
of
carbon-chain
regulation
elicit
steric
hindrance,
such
structure
significantly
reducing
the
solvent's
biotoxicity
tuning
solvation
electrolytes.
Notably,
our
is
versatile,
an
anion-dominated
favored,
facilitating
stable
interphase
formation
on
both
anode
cathode
in
potassium-ion
batteries.
Remarkably,
ether-based
demonstrates
excellent
K
graphite
4.2
V
high-voltage
(200
cycles
average
Coulombic
efficiency
99.64
%).
This
work
points
path
toward
molecular
practical
other
rechargeable
Journal of the American Chemical Society,
Год журнала:
2023,
Номер
145(44), С. 24260 - 24271
Опубликована: Окт. 27, 2023
Lithium
metal
batteries
(LMBs)
coupled
with
a
high-voltage
Ni-rich
cathode
are
promising
for
meeting
the
increasing
demand
high
energy
density.
However,
aggressive
electrode
chemistry
imposes
ultimate
requirements
on
electrolytes
used.
Among
various
optimized
investigated,
localized
high-concentration
(LHCEs)
have
excellent
reversibility
against
lithium
anode.
because
they
consist
of
thermally
and
electrochemically
unstable
solvents,
inferior
stability
at
elevated
temperatures
cutoff
voltages.
Here
we
report
semisolvated
sole-solvent
electrolyte
to
construct
typical
LHCE
solvation
structure
but
significantly
improved
using
one
bifunctional
solvent.
The
designed
exhibits
exceptional
both
electrodes
suppressed
dendrite
growth,
phase
transition,
microcracking,
transition
dissolution.
A
Li||Ni0.8Co0.1Mn0.1O2
cell
this
operates
stably
over
wide
temperature
range
from
-20
60
°C
has
capacity
retention
95.6%
after
100th
cycle
4.7
V,
∼80%
initial
is
retained
even
180
cycles.
This
new
indicates
path
toward
future
engineering
safe
LMBs.
Chemical Reviews,
Год журнала:
2024,
Номер
124(8), С. 4935 - 5118
Опубликована: Апрель 10, 2024
Rechargeable
metal-sulfur
batteries
are
considered
promising
candidates
for
energy
storage
due
to
their
high
density
along
with
natural
abundance
and
low
cost
of
raw
materials.
However,
they
could
not
yet
be
practically
implemented
several
key
challenges:
(i)
poor
conductivity
sulfur
the
discharge
product
metal
sulfide,
causing
sluggish
redox
kinetics,
(ii)
polysulfide
shuttling,
(iii)
parasitic
side
reactions
between
electrolyte
anode.
To
overcome
these
obstacles,
numerous
strategies
have
been
explored,
including
modifications
cathode,
anode,
electrolyte,
binder.
In
this
review,
fundamental
principles
challenges
first
discussed.
Second,
latest
research
on
is
presented
discussed,
covering
material
design,
synthesis
methods,
electrochemical
performances.
Third,
emerging
advanced
characterization
techniques
that
reveal
working
mechanisms
highlighted.
Finally,
possible
future
directions
practical
applications
This
comprehensive
review
aims
provide
experimental
theoretical
guidance
designing
understanding
intricacies
batteries;
thus,
it
can
illuminate
pathways
progressing
high-energy-density
battery
systems.
Advanced Materials,
Год журнала:
2024,
Номер
36(17)
Опубликована: Янв. 9, 2024
The
reversible
and
durable
operation
of
sodium
metal
batteries
at
low
temperatures
(LT)
is
essential
for
cold-climate
applications
but
plagued
by
dendritic
Na
plating
unstable
solid-electrolyte
interphase
(SEI).
Current
Coulombic
efficiencies
plating/stripping
LT
fall
far
below
99.9%,
representing
a
significant
performance
gap
yet
to
be
filled.
Here,
the
solvation
structure
conventional
1
m
NaPF
Energy & Environmental Science,
Год журнала:
2023,
Номер
17(1), С. 227 - 237
Опубликована: Ноя. 14, 2023
Correlations
between
the
temperature-responsive
solvation
structure,
interfacial
chemistry
and
performance
of
graphite
anodes
are
revealed
to
understand
structure–property
relationships,
providing
insights
into
designing
temperature-adaptative
batteries.
Advanced Materials,
Год журнала:
2024,
Номер
36(25)
Опубликована: Март 8, 2024
Abstract
Room‐temperature
sodium‐sulfur
(RT‐Na/S)
batteries
are
promising
alternatives
for
next‐generation
energy
storage
systems
with
high
density
and
power
density.
However,
some
notorious
issues
hampering
the
practical
application
of
RT‐Na/S
batteries.
Besides,
working
mechanism
under
conditions
such
as
sulfur
loading,
lean
electrolyte,
low
capacity
ratio
between
negative
positive
electrode
(N/P
ratio),
is
essential
importance
applications,
yet
significance
these
parameters
has
long
been
disregarded.
Herein,
it
comprehensively
reviewed
recent
advances
on
Na
metal
anode,
S
cathode,
separator
engineering
The
discrepancies
laboratory
research
elaborately
discussed,
endeavors
toward
applications
highlighted,
suggestions
values
crucial
rationally
proposed.
Furthermore,
an
empirical
equation
to
estimate
actual
pouch
cells
proposed
first
time,
making
possible
evaluate
gravimetric
conditions.
This
review
aims
reemphasize
vital
bridge
gaps
applications.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(34)
Опубликована: Март 13, 2024
Abstract
The
practical
application
of
room‐temperature
sodium‐sulfur
(RT
Na–S)
batteries
is
blocked
by
the
notorious
shuttle
effect
sodium
polysulfides
(NaPSs)
and
sluggish
refox
reaction
kinetics.
Single‐atom
catalysts
(SACs)
have
been
widely
studied
for
boosting
energy
storage
performance
RT
Na‐S
batteries.
Nevertheless,
catalytic
centers
SACs
reported
so
far
focused
mainly
on
symmetrical
metal–N
4
structures,
which
offer
weak
bonding
affinity
toward
polar
NaPSs,
leading
to
detrimental
sulfur
conversion
Herein,
a
novel
asymmetrical
Mn–N
2
structure
implanted
into
nitrogen‐doped
carbon
nanofibers
(Mn‐N
/CNs)
through
thermal
NH
3
etching
O
structure.
promotes
NaPSs
due
strengthened
d‐p
orbital‐hybridization
between
d
orbital
Mn
in
p
S
NaPSs.
Consequently,
Mn‐N
/CNs@S
achieves
high
capacity
458
mAh
g
−1
at
3.0
C
with
decay
0.23%
over
2300
cycles.
This
work
offers
promising
pathway
regulating
coordination
number
high‐performance
Na–S
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(21)
Опубликована: Март 16, 2024
Diluents
have
been
extensively
employed
to
overcome
the
disadvantages
of
high
viscosity
and
sluggish
kinetics
high-concentration
electrolytes,
but
generally
do
not
change
pristine
solvation
structure.
Herein,
a
weakly
coordinating
diluent,
hexafluoroisopropyl
methyl
ether
(HFME),
is
applied
regulate
coordination
Na
Advanced Materials,
Год журнала:
2024,
Номер
36(41)
Опубликована: Авг. 17, 2024
Abstract
Interfacial
Na
+
behaviors
of
sodium
(Na)
anode
severely
threaten
the
stability
sodium‐metal
batteries
(SMBs).
This
review
systematically
and
in‐depth
discusses
current
fundamental
understanding
interfacial
in
SMBs
including
migration,
desolvation,
diffusion,
nucleation,
deposition.
The
key
influencing
factors
optimization
strategies
these
are
further
summarized
discussed.
More
importantly,
high‐energy‐density
anode‐free
metal
(AFSMBs)
highlighted
by
addressing
issues
areas
limited
sources
irreversible
loss.
Simultaneously,
recent
advanced
characterization
techniques
for
deeper
insights
into
deposition
behavior
composition
information
SEI
film
spotlighted
to
provide
guidance
advancement
AFSMBs.
Finally,
prominent
perspectives
presented
guide
promote
development
