Nano Letters,
Год журнала:
2024,
Номер
24(29), С. 8872 - 8879
Опубликована: Июль 11, 2024
Parlous
structure
integrity
of
the
cathode
and
erratic
interfacial
microdynamics
under
high
potential
take
responsibility
for
degradation
solid-state
lithium
metal
batteries
(LMBs).
Here,
high-voltage
LMBs
have
been
operated
by
modulating
polymer
electrolyte
intrinsic
through
an
intermediate
dielectric
constant
solvent
further
inducing
gradient
interphase.
Benefiting
from
chemical
adsorption
between
trimethyl
phosphate
(TMP)
cathode,
interphase
rich
in
LiPFxOy
LiF
is
induced,
thereby
ensuring
structural
interface
compatibility
commercial
LiNi0.8Co0.1Mn0.1O2
(NCM811)
even
at
4.9
V
cutoff
voltage.
Eventually,
specific
capacity
NCM811|Li
full
cell
based
on
TMP-modulated
increased
27.7%
4.5
to
V.
Such
a
universal
screening
method
solvents
its
derived
electrode
manipulation
strategy
opens
fresh
avenues
quasi-solid-state
with
energy.
Advanced Energy Materials,
Год журнала:
2024,
Номер
14(17)
Опубликована: Янв. 17, 2024
Abstract
Understanding
and
modulating
the
unique
electronic
interaction
between
single‐metal
atoms
high
entropy
compounds
are
of
great
significance
to
enable
their
high‐efficiency
oxygen
electrocatalysis
for
aprotic
lithium‐oxygen
(Li‐O
2
)
batteries.
Herein,
a
novel
bi‐functional
electrocatalyst
is
first
time
created
by
immobilizing
single‐atom
ruthenium
(Ru)
on
lanthanum‐based
perovskite
oxide
La(Mn
0.2
Co
Fe
Ni
Cr
)O
3
(Ru@HEPO),
which
demonstrates
activity
stability
in
Li‐O
The
heteronuclear
coordination
Ru
HEPO
facilitates
fast
electron
transfer
from
establishing
Ru‐O‐M
(M
stands
Mn,
Co,
Fe,
Ni)
bridges,
well
redistributes
electrons
within
Ru@HEPO
hence
significantly
improving
its
interfacial
charge
kinetics
electrocatalytic
activity.
Additionally,
strong
coupling
Mn
enhances
hybridization
3d
O
2p
orbitals,
promotes
inherent
affinity
toward
LiO
intermediate,
thereby
reducing
reaction
energy
barrier
electrode.
As
result,
Ru@HEPO‐based
batteries
deliver
remarkable
electrochemical
performances,
such
as
efficiency
(87.3%
at
100
mA
g
−1
),
excellent
rate
capability
(low
overpotential
0.52
V
durable
cyclability
(345
cycles
300
).
This
work
opens
up
promising
avenue
development
entropy‐based
electrocatalysts
precisely
tailoring
distributions
an
atomic
scale.
Journal of the American Chemical Society,
Год журнала:
2024,
Номер
146(27), С. 18281 - 18291
Опубликована: Май 30, 2024
Lithium
metal
batteries
face
problems
from
sluggish
charge
transfer
at
interfaces,
as
well
parasitic
reactions
between
lithium
anodes
and
electrolytes,
due
to
the
strong
electronegativity
of
oxygen
donor
solvents.
These
factors
constrain
reversibility
kinetics
low
temperatures.
Here,
a
nonsolvating
cosolvent
is
applied
weaken
in
ether
solvents,
enabling
participation
anionic
donors
solvation
structure
Li+.
This
strategy
significantly
accelerates
desolvation
process
Li+
reduces
side
effects
solvents
on
interfacial
transport
stability.
The
designed
anion-aggregated
electrolyte
has
unique
temperature-insensitive
enables
achieve
high
average
Coulombic
efficiency
room
temperature
−20
°C.
A
high-loading
LiFePO4||Li
cell
exhibited
with
100%
capacity
retention
after
150
cycles
temperature,
−20,
−40
practical
1
Ah-level
pouch-cell
delivered
81%
61%
when
charged
discharged
°C,
respectively.
constructing
by
regulation
offers
novel
approach
for
developing
electrolytes
low-temperature
batteries.
Energy & Environmental Science,
Год журнала:
2024,
Номер
17(11), С. 3797 - 3806
Опубликована: Янв. 1, 2024
We
elucidate
the
dissociation
mechanism
of
LiFSI
induced
by
ferroelectric
fillers
BaTiO
3
and
enhanced
spontaneous
polarization
oxygen
vacancy
defects.
Advanced Materials,
Год журнала:
2024,
Номер
36(33)
Опубликована: Июнь 20, 2024
Developing
hydrophobic
interface
has
proven
effective
in
addressing
dendrite
growth
and
side
reactions
during
zinc
(Zn)
plating
aqueous
Zn
batteries.
However,
this
solution
inadvertently
impedes
the
solvation
of
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(25)
Опубликована: Апрель 16, 2024
Lithium
(Li)
metal
batteries
(LMBs)
with
nickel
(Ni)-rich
layered
oxide
cathodes
exhibit
twice
the
energy
density
of
conventional
Li-ion
batteries.
However,
their
lifespan
is
limited
by
severe
side
reactions
caused
high
electrode
reactivity.
Fluorinated
solvent-based
electrolytes
can
address
this
challenge,
but
they
pose
environmental
and
biological
hazards.
This
work
reports
on
molecular
engineering
fluorine
(F)-free
ethers
to
mitigate
surface
reactivity
in
high-voltage
Ni-rich
LMBs.
By
merely
extending
alkyl
chains
traditional
ethers,
we
effectively
reduce
catalytic
cathode
towards
electrolyte
at
voltages,
which
suppresses
oxidation
decomposition
electrolyte,
microstructural
defects
rock-salt
phase
formation
cathode,
gas
release
issues.
The
NCM811-Li
battery
delivers
capacity
retention
80
%
after
250
cycles
a
Coulombic
efficiency
99.85
%,
even
superior
that
carbonate
electrolytes.
Additionally,
strategy
facilitates
passivation
Li
anode
forming
robust
solid-electrolyte
interphase,
boosting
reversibility
99.11
cycling
life
350
cycles,
outperforms
F-free
ether
Consequently,
practical
LMBs
has
been
prolonged
over
100
500
compared
those
carbonate-
ether-based
electrolytes,
respectively.
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
Chemistry - A European Journal,
Год журнала:
2024,
Номер
30(36)
Опубликована: Апрель 24, 2024
Today,
rechargeable
batteries
are
omnipresent
and
essential
for
our
existence.
In
order
to
improve
the
electrochemical
performance
of
electric
fields,
introduction
electrolytes
with
fluorine
(F)-based
inorganic
elemental
compositions
is
a
direction
exploration.
However,
most
fluorocarbons
have
high
global
warming
potential
ozone
depletion
potential,
which
do
not
meet
sustainability
requirements
battery
industry.
Therefore,
developing
sustainable
viable
option
future
development.
Although
researchers
made
much
progress
in
electrolyte
optimization,
little
attention
has
been
paid
low-toxic
safe
electrolytes.
This
review
aims
elucidate
design
principles
recent
advances
this
solvents
salts.
It
concludes
summary
outlook
on
research
directions
molecular
green
practical
high-voltage
batteries.
Advanced Energy Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Июль 14, 2024
Abstract
Lithium‐ion
batteries
(LIBs)
have
emerged
as
vital
elements
of
energy
storage
systems
permeating
every
facet
modern
living,
particularly
in
portable
electronic
devices
and
electric
vehicles.
However,
with
the
sustained
economic
social
development,
new‐generation
LIBs
high
density,
wide
operating
temperature
range,
fast
charge,
safety
are
eagerly
expected,
while
conventional
ethylene
carbonate
(EC)‐based
electrolytes
fail
to
satisfy
corresponding
requirements.
Comparatively,
ether‐based
electrolyte
fascinating
properties
recently
been
revived
fields,
many
advanced
exciting
performances
under
developed.
This
review
provides
an
extensive
overview
latest
breakthroughs
concerning
applied
intercalation
cathodes.
To
systematically
outline
progression
electrolytes,
this
is
categorized
from
perspective
anodes
follows:
i)
graphite
anode‐based
LIBs;
ii)
silicon
iii)
lithium
metal
LIBs.
