Chemistry of Materials,
Год журнала:
2023,
Номер
35(6), С. 2381 - 2393
Опубликована: Март 9, 2023
Although
lithium
metal
and
anode-free
rechargeable
batteries
(LMBs
AFBs)
are
phenomenal
energy
storage
systems,
the
formation
of
deposits
with
high
surfaces
during
repeated
plating–stripping
cycles
has
hindered
their
practical
applications.
Recently,
extensive
efforts
have
been
made
to
prevent
growth
high-surface
deposition,
e.g.,
electrolyte
modification,
artificial
coating
lithiophilic
current
collectors,
composite
electrodes,
etc.
In
most
these
approaches,
Coulombic
efficiency
(CE)
used
as
a
quantifiable
indicator
for
reversibility
LMBs
AFBs.
The
interpretation
validation
research
results,
however,
challenging
since
measurement
CE
is
affected
by
several
parameters
related
battery
assembly
testing.
This
study
aims
unveil
interplay
potentially
overlooked
regulating
CE,
such
stripping
cutoff
voltage,
quantity,
precycling
form
solid
electrode
interphase
(SEI),
surface
applying
two
alternative
electrochemical
methods.
hidden
aspects
nucleation
overpotential
revealed
studying
parameters,
well
influence
on
composition
stability
SEI,
discussed.
Overall,
this
work
provides
an
insightful
understanding
methods
assessing
performance
Advanced Energy Materials,
Год журнала:
2023,
Номер
13(14)
Опубликована: Фев. 24, 2023
Abstract
The
high
energy
density
required
for
the
next
generation
of
lithium
batteries
will
likely
be
enabled
by
a
shift
toward
metal
anode
from
conventional
intercalation‐based
such
as
graphite.
However,
several
critical
challenges
Li
originate
its
highly
reactive
nature
and
hostless
reaction
deposition
stripping
impede
practical
use
an
anode.
role
solid
electrolyte
interphase
(SEI)
is
very
important
where
SEI
must
protect
dynamically
changing
surface
metal.
Since
SEI‐generating
mechanisms
two
different
systems,
liquid
solid,
are
considerably
different,
layers
formed
between
electrolytes
in
systems
have
substantially
properties,
causing
interfacial
issues.
Inhibition
problems
requires
strategies
to
reinforce
layer
each
systems.
differences
not
been
clearly
compared
prior
literature.
In
this
report,
issues
modification
provided
overcome
Advanced Energy Materials,
Год журнала:
2023,
Номер
13(43)
Опубликована: Окт. 9, 2023
Abstract
Solid‐state
batteries
are
considered
as
a
reasonable
further
development
of
lithium‐ion
with
liquid
electrolytes.
While
expectations
high,
there
still
open
questions
concerning
the
choice
materials,
and
resulting
concepts
for
components
full
cells.
On
basis
an
analysis
all
materials
concept
options,
roadmap
solid‐state
is
presented,
relying
on
both
literature
survey
experts'
opinions.
Diverse
cell
different
solid
electrolytes
may
be
developed
up
to
commercial
level,
yet
major
uncertainties
production
routes,
safety
well
cost.
As
one
key
developments,
it
appears
that
hybrid
material
particularly
successful
way
commercialization.
eTransportation,
Год журнала:
2023,
Номер
18, С. 100272 - 100272
Опубликована: Авг. 21, 2023
All-solid-state
batteries
(ASSBs)
are
regarded
as
the
most
promising
next-generation
for
electric
vehicles
in
virtue
of
their
potential
advantages
enhanced
safety,
high
energy
density
and
power
capability.
Among
ASSBs
based
on
various
solid
electrolytes
(SEs),
sulfide-based
have
attracted
increasing
attention
due
to
ionic
conductivity
sulfide
SEs
which
is
comparable
that
liquid
electrolytes.
Extensive
efforts
from
academia
industry
been
made
develop
ASSBs,
several
significant
progress
has
achieved
recent
years.
However,
successful
fabrication
high-performance
rarely
reported,
practical
application
still
faces
a
variety
challenges.
Herein,
following
bottom-up
approach,
we
present
comprehensive
review
critical
issues
material,
interface,
composite
electrode
cell
levels.
The
existing
challenges,
advances,
future
research
directions
at
multiple
levels
discussed.
Finally,
processes
scaling
up
pilot/mass
production
schedules
leading
companies
also
introduced.
Facing
challenges
opportunities,
highly
encourage
joint
cooperation
across
battery
community
promote
ASSBs.
Advanced Energy Materials,
Год журнала:
2023,
Номер
13(12)
Опубликована: Фев. 2, 2023
Abstract
Metallic
lithium
is
a
fascinating
anode
for
the
next‐generation
energy‐dense
rechargeable
batteries
owing
to
highest
theoretical
specific
capacity
and
lowest
electrochemical
potential.
Nevertheless,
sluggish
desolvation
kinetics
notorious
dendritic
growth
hinder
its
performance
safe
operation.
Herein,
an
interlamellar
Li
+
conductor
of
Ag‐montmorillonite
(AMMT)
proposed
as
interfacial
ion‐transport‐rectifying
pump
induce
rapid
reversible
plating/stripping
metal.
Joint
experimental
computational
analyses
reveal
that
AMMT
with
negative
charge
layers
inherent
channels
can
lower
energy
boost
transport.
The
resultant
endowed
low
nucleation
barrier
(22.2
mV)
dendrite‐free
features,
leading
high
density
(8
mA
cm
‐2
)
long
lifespan
(2500
h).
Moreover,
corresponding
Li||LiFePO
4
achieve
steady
circulation
(500
cycles@82%,
1
C)
N/P
ratio.
This
strategy
offers
fresh
insight
into
constructing
robust
multifunctional
electrolyte/Li
interface
metal
batteries.
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(25)
Опубликована: Март 14, 2023
Abstract
Trace
N,
N‐dimethylformamide(DMF)
containing
composite
polymer
electrolytes
(CPEs)
has
attracted
much
attention
owing
to
the
dramatically
increased
Li
+
‐conductivity.
But
amount
of
DMF
is
critical
and
needs
be
clarified
for
interfacial
stability,
since
easily
reduced
by
Li‐metal.
Herein,
influences
in
poly(ethylene
oxide)
(PEO)
poly(vinylidene
fluoride)
(PVDF)
based
CPEs
are
studied
on
‐conductivity
stability.
In
PEO‐based
CPEs,
a
stronger
interaction
lithium
bis(trifluoromethanesulfon)imide
(LiTFSI)
with
PEO
than
DMF,
can
not
confined
evaporated
off.
Only
≈0.25wt.%
absorbed
ceramic
electrolyte
fillers,
giving
two
times
compared
DMF‐free
counterparts
generating
stable
interface
Li‐metal;
but
over
(≥2.2
wt.%)
leads
serious
reactions
While
PVDF‐based
≈8wt.%
LiTFSI
PVDF.
Short‐term
Li‐metal
obtained,
longer‐term
cycling
or
higher
current
density
gradually
aggravated
Thanks
high‐voltage
stability
PVDF
better
performance
obtained
when
they
used
as
catholytes
match
cathodes.
