Angewandte Chemie International Edition,
Journal Year:
2023,
Volume and Issue:
62(15)
Published: Feb. 15, 2023
High-voltage
lithium
metal
batteries
(LMBs)
pose
severe
challenges
for
the
matching
of
electrolytes
with
aggressive
electrodes,
especially
at
low
temperatures.
Here,
we
report
a
rational
modification
Li+
solvation
structure
to
extend
voltage
and
temperature
operating
ranges
conventional
electrolytes.
Ion-ion
ion-dipole
interactions
as
well
electrochemical
window
solvents
were
tailored
improve
oxidation
stability
de-solvation
kinetics
electrolyte.
Meanwhile,
robust
elastic
B
F-rich
interphases
are
formed
on
both
electrodes.
Such
optimization
enables
Li||LiNi0.5
Mn1.5
O4
cells
(90.2
%
retention
after
400
cycles)
Li||LiNi0.6
Co0.2
Mn0.2
O2
(NCM622)
(74.0
200
cycle
stably
an
ultra-high
4.9
V.
Moreover,
NCM622
deliver
considerable
capacity
143.5
mAh
g-1
-20
°C,
showing
great
potential
practical
uses.
The
proposed
strategy
sheds
light
further
high-voltage
LMBs.
Advanced Materials,
Journal Year:
2022,
Volume and Issue:
34(30)
Published: March 3, 2022
Abstract
Although
lithium–sulfur
(Li–S)
batteries
are
promising
next‐generation
energy‐storage
systems,
their
practical
applications
limited
by
the
growth
of
Li
dendrites
and
lithium
polysulfide
shuttling.
These
problems
can
be
mitigated
through
use
single‐atom
catalysts
(SACs),
which
exhibit
advantages
maximal
atom
utilization
efficiency
(≈100%)
unique
catalytic
properties,
thus
effectively
enhancing
performance
electrode
materials
in
devices.
This
review
systematically
summarizes
recent
progress
SACs
intended
for
Li‐metal
anodes,
S
cathodes,
separators,
briefly
introducing
operating
principles
Li–S
batteries,
action
mechanisms
corresponding
SACs,
fundamentals
activity,
then
comprehensively
describes
main
strategies
synthesis.
Subsequently,
operation
reinforced
as
well
other
metal–S
individually
illustrated,
major
challenges
usage
future
development
directions
presented.
ACS Catalysis,
Journal Year:
2023,
Volume and Issue:
13(4), P. 2313 - 2325
Published: Jan. 30, 2023
Single-atom
introduced
carbon
nanomaterials
show
favorable
oxygen-reduction
reaction
(ORR)
and
oxygen-evolution
(OER)
performance
for
renewable
energy
applications.
Nevertheless,
the
electronic-structure
regulation
by
decorating
heterogeneous
single-metal-atoms
engineering
of
a
single-atom
active-sites'
microenvironment
need
to
be
optimized
simultaneously,
which
is
challenging.
Herein,
we
develop
an
atomic-interfacial-regulation
approach
fabricate
dual
single
Fe/Co
atoms
synchronized
with
both
nitrogen/sulfur
on
defective/graphitic/porous
nanosheets
(Fe,Co/DSA-NSC).
The
unsymmetrically
organized
N
S
coordinated
bridged
atomic-sites
[Fe-(N2S)/Co-(N2S)
moiety]
are
established
prompt
charge-transfer,
lowering
barrier
oxygenated
reaction-intermediates
leading
boost
reaction-kinetics.
As
estimated,
Fe,Co/DSA-NSC
exhibits
improved
ORR/OER
activity
higher
half-wave
potential
lower
overpotential
(E1/2
=
879
mV
η10
210
mV,
respectively)
also
good
cycling
stability
toward
zinc-air
batteries.
This
discovery
hence
provides
widespread
scheme
synergistic-principles
dual-single-atom
catalysts
controlled
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.
Journal of the American Chemical Society,
Journal Year:
2022,
Volume and Issue:
144(7), P. 3106 - 3116
Published: Feb. 11, 2022
Two-dimensional
transition
metal
dichalcogenides
(TMDCs)
show
great
potential
as
efficient
catalysts
for
Li-CO2
batteries.
However,
the
basal
plane
engineering
on
TMDCs
toward
bifunctional
batteries
is
still
poorly
understood.
In
this
work,
density
functional
theory
calculations
reveal
that
nucleophilic
N
dopants
and
electrophilic
S
vacancies
in
ReS2
tailor
interactions
with
Li
atoms
C/O
intermediates,
respectively.
The
dual
centers
suitable
adsorption
all
intermediates
during
discharge
charge,
resulting
a
small
energy
barrier
rate-determining
step.
Thus,
an
catalyst
produced
As
result,
optimal
achieves
ultrasmall
voltage
gap
of
0.66
V
ultrahigh
efficiency
81.1%
at
20
μA
cm-2,
which
superior
to
those
previous
under
similar
conditions.
introduction
provides
new
avenues
designing
excellent
ACS Nano,
Journal Year:
2023,
Volume and Issue:
17(3), P. 1764 - 1802
Published: Jan. 30, 2023
The
advent
of
5G
and
the
Internet
Things
has
spawned
a
demand
for
wearable
electronic
devices.
However,
lack
suitable
flexible
energy
storage
system
become
"Achilles'
Heel"
Additional
problems
during
transformation
battery
structure
from
conventional
to
also
present
severe
challenge
design.
Flexible
Zn-based
batteries,
including
Zn-ion
batteries
Zn–air
have
long
been
considered
promising
candidates
due
their
high
safety,
eco-efficiency,
substantial
reserve,
low
cost.
In
past
decade,
researchers
come
up
with
elaborate
designs
each
portion
improve
ionic
conductivities,
mechanical
properties,
environment
adaptabilities,
scalable
productions.
It
would
be
helpful
summarize
reported
strategies
compare
pros
cons
facilitate
further
research
toward
commercialization
batteries.
this
review,
current
progress
in
developing
is
comprehensively
reviewed,
electrolytes,
cathodes,
anodes,
discussed
terms
synthesis,
characterization,
performance
validation.
By
clarifying
challenges
design,
we
methodology
previous
investigations
propose
future
development.
end,
paradigm
summarized
fit
burgeoning
requirement
devices
an
iterative
process,
which
will
benefit
development
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
35(13)
Published: Jan. 30, 2023
Flexible
Zn-air
batteries
(FZABs)
have
significant
potentials
as
efficient
energy
storage
devices
for
wearable
electronics
because
of
their
safeties
and
high
energy-to-cost
ratios.
However,
application
is
limited
by
short
cycle
lives,
low
discharge
capacities
per
cycle,
charge/discharge
polarizations.
Accordingly,
herein,
a
poly(sodium
acrylate)-polyvinyl
alcohol
(PANa-PVA)-ionic
liquid
(IL)
hydrogel
(PANa-PVA-IL)
prepared
using
hygroscopic
IL,
1-ethyl-3-methylimidazolium
chloride,
an
additive
twin-chain
PANa-PVA.
PANa-PVA-IL
exhibits
conductivity
306.9
mS
cm-1
water
uptake
2515
wt%
at
room
temperature.
Moreover,
low-cost
bifunctional
catalyst,
namely,
Co9
S8
nanoparticles
anchored
on
N-
S-co-doped
activated
carbon
black
pearls
2000
(Co9
-NSABP),
synthesized,
which
demonstrates
O2
reversibility
potential
gap
0.629
V.
FZABs
based
-NSABP
demonstrate
1.67
mAh
cm-2
long
lives
330
h.
Large-scale
flexible
rechargeable
pouch
cells
exhibit
total
1.03
Ah
densities
246
Wh
kgcell-1
.
This
study
provides
new
information
about
hydrogels
with
ionic
conductivities
uptakes
should
facilitate
the
in
electronics.
Advanced Energy Materials,
Journal Year:
2022,
Volume and Issue:
12(29)
Published: June 7, 2022
Abstract
Electrocatalyst
design
has
stimulated
considerable
attention
and
strenuous
effort
to
tackle
a
multitude
of
detrimental
issues
in
lithium–sulfur
(Li–S)
systems,
mainly
pertaining
the
severe
polysulfide
shuttle
effect
sluggish
sulfur
redox
kinetics.
In
this
context
related
advances
expediting
bidirectional
reactions
have
lately
surged.
Nonetheless,
structure–activity
correlation
electrocatalytic
mechanism
remain
rather
elusive,
as
result
elusory
active
sites,
complicated
aprotic
environments,
multistep
conversion
pathways.
This
review
summarizes
burgeoning
strategies
modulation
heterogeneous
homogeneous
electrocatalysts,
wherein
advanced
electrokinetic
measurements,
operando
instrumental
probing,
theoretical
simulations
are
elucidated
with
an
emphasis
on
deciphering
electrochemistry.
Notably,
“3s”
electrocatalysis
model
is
proposed
deepen
mechanistic
understanding
realm.
Finally,
development
roadmap
sketched
future
research
layouts
discussed,
aiming
essence,
realize
favorable
kinetics
ultimately
bridge
gap
between
reality
ideal
systems
working
Li–S
batteries.