Small Science,
Journal Year:
2021,
Volume and Issue:
1(11)
Published: Aug. 20, 2021
Lithium–sulfur
(Li–S)
batteries
are
highly
considered
for
next‐generation
energy
storage
due
to
their
ultrahigh
theoretical
density
of
2600
Wh
kg
−1
.
The
conversion
reactions
between
lithium
polysulfides
(LiPSs)
constitute
the
core
process
in
working
Li–S
batteries.
Electrochemical
impedance
spectroscopy
(EIS)
analysis
LiPS
symmetric
cells
is
an
effective
tool
provide
detailed
information
on
and
direct
further
kinetic
promotion.
However,
reasonable
interpretation
EIS
responses
so
far
insufficiently
addressed
without
a
well‐defined
equivalent
circuit.
Herein,
systematic
conducted
comprehensible
Interfacial
contact,
surface
reaction,
diffusion
decoupled
according
respective
characteristic
frequency
using
distribution
relaxation
time
method.
A
circuit
proposed
accurately
fit
experimental
responses,
unambiguously
interpret
key
parameters,
be
feasible
with
wide
range
conditions.
This
work
presents
methodology
understanding
inspires
analogous
vital
electrochemical
processes.
Energy & Environmental Science,
Journal Year:
2021,
Volume and Issue:
14(7), P. 4115 - 4124
Published: Jan. 1, 2021
The
present
work
theoretically
and
experimentally
provides
an
insight
into
the
internal
mechanism
of
Li+
transport
within
artificial
hybrid
SEI
layer
consisting
lithium-antimony
(Li3Sb)
alloy
lithium
fluoride
(LiF).
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.
ACS Nano,
Journal Year:
2022,
Volume and Issue:
16(10), P. 15734 - 15759
Published: Oct. 12, 2022
Because
of
their
high
energy
density,
low
cost,
and
environmental
friendliness,
lithium–sulfur
(Li–S)
batteries
are
one
the
potential
candidates
for
next-generation
energy-storage
devices.
However,
they
have
been
troubled
by
sluggish
reaction
kinetics
insoluble
Li2S
product
capacity
degradation
because
severe
shuttle
effect
polysulfides.
These
problems
overcome
introducing
transition
metal
compounds
(TMCs)
as
catalysts
into
interlayer
modified
separator
or
sulfur
host.
This
review
first
introduces
mechanism
redox
reactions.
The
methods
studying
TMC
in
Li–S
provided.
Then,
recent
advances
TMCs
(such
oxides,
sulfides,
selenides,
nitrides,
phosphides,
carbides,
borides,
heterostructures)
some
helpful
design
modulation
strategies
highlighted
summarized.
At
last,
future
opportunities
toward
presented.
ACS Nano,
Journal Year:
2022,
Volume and Issue:
16(12), P. 19959 - 19979
Published: Dec. 15, 2022
To
utilize
intermittent
renewable
energy
as
well
achieve
the
goals
of
peak
carbon
dioxide
emissions
and
neutrality,
various
electrocatalytic
devices
have
been
developed.
However,
reactions,
e.g.,
hydrogen
evolution
reaction/oxygen
reaction
in
overall
water
splitting,
polysulfide
conversion
lithium–sulfur
batteries,
formation/decomposition
lithium
peroxide
lithium–oxygen
nitrate
reduction
to
degrade
sewage,
suffer
from
sluggish
kinetics
caused
by
multielectron
transfer
processes.
Owing
merits
accelerated
charge
transport,
optimized
adsorption/desorption
intermediates,
raised
conductivity,
regulation
microenvironment,
ease
combine
with
geometric
characteristics,
built-in
electric
field
(BIEF)
is
expected
overcome
above
problems.
Here,
we
give
a
Review
about
very
recent
progress
BIEF
for
efficient
electrocatalysis.
First,
construction
strategies
characterization
methods
(qualitative
quantitative
analysis)
are
summarized.
Then,
up-to-date
overviews
engineering
electrocatalysis,
attention
on
electron
structure
optimization
microenvironment
modulation,
analyzed
discussed
detail.
In
end,
challenges
perspectives
proposed.
This
gives
deep
understanding
design
electrocatalysts
next-generation
storage
devices.
Nano Letters,
Journal Year:
2021,
Volume and Issue:
21(15), P. 6656 - 6663
Published: July 22, 2021
Lithium–sulfur
(Li–S)
batteries
suffer
from
sluggish
sulfur
redox
reactions
under
high-sulfur-loading
and
lean-electrolyte
conditions.
Herein,
a
typical
Co@NC
heterostructure
composed
of
Co
nanoparticles
semiconductive
N-doped
carbon
matrix
is
designed
as
model
Mott–Schottky
catalyst
to
exert
the
electrocatalytic
effect
on
electrochemistry.
Theoretical
experimental
results
reveal
redistribution
charge
built-in
electric
field
at
heterointerface,
which
are
critical
lowering
energy
barrier
polysulfide
reduction
Li2S
oxidation
in
discharge
process,
respectively.
With
catalysts,
Li–S
display
an
ultrahigh
capacity
retention
92.1%
system-level
gravimetric
density
307.8
Wh
kg–1
high
S
loading
(10.73
mg
cm–2)
lean
electrolyte
(E/S
=
5.9
μL
mgsulfur–1)
The
proposed
not
only
deepens
understanding
chemistry
but
also
inspires
rational
design
for
advanced
high-energy-density
batteries.
Chemical Society Reviews,
Journal Year:
2023,
Volume and Issue:
52(15), P. 5255 - 5316
Published: Jan. 1, 2023
Lithium-based
rechargeable
batteries
have
dominated
the
energy
storage
field
and
attracted
considerable
research
interest
due
to
their
excellent
electrochemical
performance.
As
indispensable
ubiquitous
components,
electrolytes
play
a
pivotal
role
in
not
only
transporting
lithium
ions,
but
also
expanding
stable
potential
window,
suppressing
side
reactions,
manipulating
redox
mechanism,
all
of
which
are
closely
associated
with
behavior
solvation
chemistry
electrolytes.
Thus,
comprehensively
understanding
is
significant
importance.
Here
we
critically
reviewed
development
various
lithium-based
including
lithium-metal
(LMBs),
nonaqueous
lithium-ion
(LIBs),
lithium-sulfur
(LSBs),
lithium-oxygen
(LOBs),
aqueous
(ALIBs),
emphasized
effects
interactions
between
cations,
anions,
solvents
on
chemistry,
functions
different
types
(strong
solvating
electrolytes,
moderate
weak
electrolytes)
performance
mechanism
abovementioned
batteries.
Specifically,
stability
electrode-electrolyte
interphases,
suppression
dendrites
LMBs,
inhibition
co-intercalation
LIBs,
improvement
anodic
at
high
cut-off
voltages
LIBs
ALIBs,
regulation
pathways
LSBs
LOBs,
hydrogen/oxygen
evolution
reactions
LOBs
thoroughly
summarized.
Finally,
review
concludes
prospective
outlook,
where
practical
issues
advanced
situ/operando
techniques
illustrate
theoretical
calculation
simulation
such
as
"material
knowledge
informed
machine
learning"
"artificial
intelligence
(AI)
+
big
data"
driven
strategies
for
high-performance
been
proposed.
Advanced Energy Materials,
Journal Year:
2022,
Volume and Issue:
12(42)
Published: Sept. 6, 2022
Abstract
The
deployment
of
rechargeable
batteries
is
crucial
for
the
operation
advanced
portable
electronics
and
electric
vehicles
under
harsh
environment.
However,
commercial
lithium‐ion
using
ethylene
carbonate
electrolytes
suffer
from
severe
loss
in
cell
energy
density
at
extremely
low
temperature.
Lithium
metal
(LMBs),
which
use
Li
as
anode
rather
than
graphite,
are
expected
to
push
baseline
low‐temperature
devices
level.
Albeit
promising,
kinetic
limitations
standard
chemistries
subzero
condition
inevitably
hamper
cyclability
LMBs,
resulting
a
decline
plating/stripping
reversibility
short‐circuit
hazards
due
dendritic
growth.
Such
performance
degradation
becomes
more
pronounced
with
decreasing
temperature,
ascribing
sluggish
ion
transport
kinetics
during
charging/discharging
processes
includes
+
solvation/desolvation,
through
bulk
electrolyte,
well
diffusion
within
solid
electrolyte
interphase
electrode
materials
In
this
review,
critical
limiting
factors
challenges
behaviors
systematically
reviewed
discussed.
strategies
enhance
electrolytes,
electrodes,
electrolyte/electrode
interface
comprehensively
summarized.
Finally,
perspective
on
future
research
direction
LMBs
toward
practical
applications
proposed.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
35(51)
Published: Sept. 6, 2023
The
safe
operation
of
rechargeable
batteries
is
crucial
because
numerous
instances
fire
and
explosion
mishaps.
However,
battery
chemistry
involving
metallic
lithium
(Li)
as
the
anode
prone
to
thermal
runaway
in
flammable
organic
electrolytes
under
abusive
conditions.
Herein,
an
situ
encapsulation
strategy
proposed
construct
nonflammable
quasi-solid
through
radical
polymerization
a
hexafluorobutyl
acrylate
(HFBA)
monomer
pentaerythritol
tetraacrylate
(PETEA)
crosslinker.
system
eliminates
inherent
flammability
ether
with
zero
self-extinguishing
time
owing
gas-phase
capturing
ability
HFBA.
Additionally,
graphitized
carbon
layer
generated
during
decomposition
PETEA
at
high
temperatures
obstructs
heat
oxygen
required
for
combustion.
When
coupled
Au-modified
reduced
graphene
oxide
anodic
current
collectors
sulfide
cathodes,
assembled
anode-free
Li-metal
cell
based
on
electrolyte
exhibits
no
signs
expansion
or
gas
generation
cycling,
eliminated
multiple
mechanical,
electrical,
abuse
scenarios
even
rigorous
strikes.
This
configuration
gas-
condensed-phase
flame-retardant
mechanisms
can
drive
technological
leap
pouch
cells
secure
practical
applications
necessary
power
this
society
manner.
