Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
33(15)
Published: Jan. 15, 2023
Abstract
The
theoretically
high‐energy‐density
lithium–sulfur
batteries
(LSBs)
are
seriously
limited
by
the
disadvantages
including
shuttle
effect
of
soluble
lithium
polysulfides
(LiPSs)
and
sluggish
sulfur
redox
kinetics,
especially
for
most
difficult
solid–solid
conversion
Li
2
S
to
S.
Herein,
a
multifunctional
catalytic
interlayer
improve
performance
LSBs
is
tried
introduce,
in
which
Fe
1–
x
S/Fe
3
C
nanoparticles
embedded
N/S
dual‐doped
carbon
network
(NSC)
composed
nanosheets
nanotubes
(the
final
product
named
as
FeSC@NSC).
well‐designed
3D
NSC
endows
with
satisfactory
LiPSs
capture‐catalytic
ability,
thus
ensuring
fast
reaction
kinetics
suppressing
shuttling.
density
functional
theory
calculations
disclose
mechanisms
that
FeSC@NSC
greatly
improves
liquid–solid
(LiPSs
)
unexpectedly
(Li
S)
one.
As
result,
based
on
can
achieve
high
specific
capacity
1118
mAh
g
−1
at
current
0.2
C,
relatively
stable
415
large
2.0
after
700
cycles
well
superior
rate
performance.
Advanced Materials,
Journal Year:
2020,
Volume and Issue:
32(34)
Published: July 12, 2020
Abstract
The
application
of
solid
polymer
electrolytes
(SPEs)
is
still
inherently
limited
by
the
unstable
lithium
(Li)/electrolyte
interface,
despite
advantages
security,
flexibility,
and
workability
SPEs.
Herein,
Li/electrolyte
interface
modified
introducing
Li
2
S
additive
to
harvest
stable
all‐solid‐state
metal
batteries
(LMBs).
Cryo‐transmission
electron
microscopy
(cryo‐TEM)
results
demonstrate
a
mosaic
between
poly(ethylene
oxide)
(PEO)
anodes,
in
which
abundant
crystalline
grains
Li,
O,
LiOH,
CO
3
are
randomly
distributed.
Besides,
cryo‐TEM
visualization,
combined
with
molecular
dynamics
simulations,
reveals
that
introduction
accelerates
decomposition
N(CF
SO
)
−
consequently
promotes
formation
LiF
nanocrystals
Li/PEO
interface.
generated
further
verified
inhibit
breakage
CO
bonds
chains
prevents
continuous
reaction
PEO.
Therefore,
LMBs
LiF‐enriched
exhibit
improved
cycling
capability
stability
cell
configuration
an
ultralong
lifespan
over
1800
h.
This
work
believed
open
up
new
avenue
for
rational
design
high‐performance
LMBs.
Advanced Materials,
Journal Year:
2021,
Volume and Issue:
33(50)
Published: April 2, 2021
Abstract
Lithium–sulfur
(Li‐S)
batteries
have
a
high
specific
energy
capacity
and
density
of
1675
mAh
g
−1
2670
Wh
kg
,
respectively,
rendering
them
among
the
most
promising
successors
for
lithium‐ion
batteries.
However,
there
are
myriads
obstacles
in
practical
application
commercialization
Li‐S
batteries,
including
low
conductivity
sulfur
its
discharge
products
(Li
2
S/Li
S
),
volume
expansion
electrode,
polysulfide
shuttle
effect.
Hence,
immense
attention
has
been
devoted
to
rectifying
these
issues,
which
metal‐based
compounds
(i.e.,
transition
metal,
metal
phosphides,
sulfides,
oxides,
carbides,
nitrides,
phosphosulfides,
MXenes,
hydroxides,
metal‐organic
frameworks)
as
hosts
is
profiled
fascinating
strategy
hinder
effect
stemming
from
polar–polar
interactions
between
polysulfides.
This
review
encompasses
fundamental
electrochemical
principles
insights
into
polysulfides,
with
emphasis
on
intimate
structure–activity
relationship
corroborated
theoretical
calculations.
Additionally,
integration
conductive
carbon‐based
materials
ameliorate
existing
adsorptive
abilities
compound
systematically
discussed.
Lastly,
challenges
prospects
toward
smart
design
catalysts
future
development
presented.
Energy Material Advances,
Journal Year:
2021,
Volume and Issue:
2021
Published: Jan. 1, 2021
Lithium-
(Li-)
ion
batteries
have
revolutionized
our
daily
life
towards
wireless
and
clean
style,
the
demand
for
with
higher
energy
density
better
safety
is
highly
required.
The
next-generation
innovatory
chemistry,
material,
engineering
breakthroughs
are
in
strong
pursuit
currently.
Herein,
key
historical
developments
of
practical
electrode
materials
Li-ion
summarized
as
cornerstone
innovation
batteries.
In
addition,
emerging
discussed
revolving
challenges
potential
strategies.
Finally,
future
scenario
high-energy-density
rechargeable
presented.
combination
theory
experiment
under
multiscale
highlighted
to
promote
development
materials.
ACS Nano,
Journal Year:
2020,
Volume and Issue:
14(9), P. 11929 - 11938
Published: Aug. 12, 2020
Electrocatalysts
remain
vitally
important
for
the
rational
management
of
intermediate
polysulfides
(LiPSs)
in
realm
Li-S
batteries.
In
terms
transition-metal-based
candidates,
situ
evolution
electrocatalysts
course
an
electrochemical
process
has
been
acknowledged;
nevertheless,
consensus
not
yet
reached
on
their
real
functional
states
as
well
catalytic
mechanisms.
Herein,
we
report
all-chemical
vapor
deposition
design
defective
vanadium
diselenide
(VSe2)-vertical
graphene
(VG)
heterostructure
carbon
cloth
(CC)
targeting
a
high-performance
sulfur
host.
The
electrochemistry
induces
sulfurization
VSe2
to
VS2
at
Se
vacancy
sites,
which
propels
adsorption
and
conversion
LiPSs.
Accordingly,
VSe2-VG@CC/S
electrode
harvests
excellent
cycling
stability
5.0
C
with
capacity
decay
only
0.039%
per
cycle
over
800
cycles,
accompanied
by
high
areal
4.9
mAh
cm-2
under
elevated
loading
9.6
mg
cm-2.
Theoretical
simulation
combined
operando
characterizations
reveals
key
role
played
respect
electrocatalyst
LiPS
regulation.
This
work
offers
insight
into
hosts
throughout
defect
engineering.
Angewandte Chemie International Edition,
Journal Year:
2021,
Volume and Issue:
60(28), P. 15503 - 15509
Published: April 29, 2021
Abstract
The
lithium–sulfur
(Li–S)
battery
is
regarded
as
a
promising
secondary
battery.
However,
constant
parasitic
reactions
between
the
Li
anode
and
soluble
polysulfide
(PS)
intermediates
significantly
deteriorate
working
anode.
rational
design
to
inhibit
plagued
by
inability
understand
regulate
electrolyte
structure
of
PSs.
Herein,
PSs
with
anti‐reductive
solvent
shells
was
unveiled
molecular
dynamics
simulations
nuclear
magnetic
resonance.
reduction
resistance
shell
proven
be
key
reason
for
decreased
reactivity
towards
Li.
With
isopropyl
ether
(DIPE)
cosolvent,
DIPE
molecules
tend
distribute
in
outer
due
poor
solvating
power.
Furthermore,
more
stable
than
conventional
solvents
against
metal.
suppressed
encapsulating
into
shells.
Consequently,
cycling
performance
Li–S
batteries
improved
pouch
cell
300
Wh
kg
−1
demonstrated.
fundamental
understanding
this
work
provides
an
unprecedented
ground
batteries.
Advanced Functional Materials,
Journal Year:
2021,
Volume and Issue:
31(34)
Published: June 19, 2021
Abstract
Lithium‐ion
batteries
(LIBs)
have
been
occupying
the
dominant
position
in
energy
storage
devices.
Over
past
30
years,
silicon
(Si)‐based
materials
are
most
promising
alternatives
for
graphite
as
LIB
anodes
due
to
their
high
theoretical
capacities
and
low
operating
voltages.
Nevertheless,
extensive
volume
changes
battery
operation
causes
structural
collapse
of
Si‐based
electrodes,
well
severe
side
reactions.
In
this
review,
preparation
methods
structure
optimizations
highlighted,
applications
half
full
cells.
Meanwhile,
developments
electrolytes,
binders
separators
that
match
electrodes
cells
made
great
progress.
Pre‐lithiation
technology
has
introduced
compensate
irreversible
Li
+
consumption
during
operation,
thereby
improving
densities
lifetime
More
importantly,
almost
all
related
mechanisms
summarized
detail.
It
is
expected
provide
a
comprehensive
insight
on
how
develop
high‐performance
The
work
can
help
us
understand
what
happens
lithiation
process,
primary
failure,
strategies
overcome
these
challenges.
