Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Июль 31, 2024
The
inner
Helmholtz
plane
and
thus
derived
solid-electrolyte
interphase
(SEI)
are
crucial
interfacial
structure
to
determine
the
electrochemical
stability
of
Zn-ion
battery
(ZIB).
In
this
work,
we
demonstrate
that
introducing
β-cyclodextrins
(CD)
as
anion-receptors
into
Zn(OTf)2
aqueous
electrolyte
could
significantly
optimize
Zn
anode
SEI
for
achieving
stable
ZIB.
Specifically,
β-CD
with
macrocyclic
holds
appropriate
cavity
size
charge
distribution
encase
OTf-
anions
at
metal
surface
form
β-CD@OTf-
dominated
structure.
Meanwhile,
electrochemically
triggered
decomposition
in
situ
convert
organic-inorganic
hybrid
(ZnF2/ZnCO3/ZnS‒(C-O-C/*CF/*CF3)),
which
efficiently
hinder
dendrite
growth
maintain
proper
mechanical
strength
guarantee
long-term
stability.
thus-derived
|
|Zn
pouch
cell
(21
cm2
size)
β-CD-containing
exhibits
a
cumulative
capacity
6450
mAh−2
cm−2
conditions
10
mAh
high
areal
capacity.
This
work
gives
insights
reaching
ZIB
via
additive
regulation.
Here,
authors
report
βcyclodextrins
Advanced Materials,
Год журнала:
2023,
Номер
35(31)
Опубликована: Май 20, 2023
High-energy
electrolytic
Zn//MnO2
batteries
show
potential
for
grid-scale
energy
storage,
but
the
severe
hydrogen
evolution
corrosion
(HEC)
caused
by
acidic
electrolytes
results
in
subdued
durability.
Here,
an
all-around
protection
strategy
is
reported
achieving
stable
Zn
metal
anodes.
First,
a
proton-resistant
Pb-containing
(Pb
and
Pb(OH)2
)
interface
constructed
on
anode
(denoted
as
Zn@Pb),
which
situ
forms
PbSO4
during
H2
SO4
protects
substrate
from
HEC.
Second,
to
improve
plating/stripping
reversibility
of
Zn@Pb,
Pb(CH3
COO)2
additive
Zn@Pb-Ad)
introduced,
triggers
precipitation
releases
trace
Pb2+
that
can
dynamically
deposit
Pb
layer
plating
suppress
The
superior
HEC
resistance
stems
low
affinity
H+
,
well
strong
bonding
between
Pb-Zn
or
Pb-Pb,
increase
reaction
overpotential
barrier.
Consequently,
Zn@Pb-Ad//MnO2
battery
runs
stably
630
795
h
0.2
0.1
m
electrolytes,
respectively,
are
>40
times
better
than
bare
Zn.
as-prepared
A
h-level
achieves
one-month
calendar
life,
opening
door
next
generation
high-durable
batteries.
Nano-Micro Letters,
Год журнала:
2024,
Номер
16(1)
Опубликована: Янв. 4, 2024
Aqueous
zinc
metal
batteries
(AZMBs)
are
promising
candidates
for
next-generation
energy
storage
due
to
the
excellent
safety,
environmental
friendliness,
natural
abundance,
high
theoretical
specific
capacity,
and
low
redox
potential
of
(Zn)
metal.
However,
several
issues
such
as
dendrite
formation,
hydrogen
evolution,
corrosion,
passivation
Zn
anodes
cause
irreversible
loss
active
materials.
To
solve
these
issues,
researchers
often
use
large
amounts
excess
ensure
a
continuous
supply
materials
anodes.
This
leads
ultralow
utilization
squanders
density
AZMBs.
Herein,
design
strategies
AZMBs
with
discussed
in
depth,
from
utilizing
thinner
foils
constructing
anode-free
structures
100%,
which
provides
comprehensive
guidelines
further
research.
Representative
methods
calculating
depth
discharge
different
first
summarized.
The
reasonable
modification
foil
anodes,
current
collectors
pre-deposited
Zn,
aqueous
(AF-AZMBs)
improve
then
detailed.
In
particular,
working
mechanism
AF-AZMBs
is
systematically
introduced.
Finally,
challenges
perspectives
high-utilization
presented.
Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
62(31)
Опубликована: Июнь 19, 2023
Aqueous
zinc
(Zn)
ion
batteries
are
attractive
for
next
generation
with
high
safety,
yet
their
applications
still
hindered
by
the
uncontrollable
dendrite
formation
and
side
reactions
on
Zn
anode.
Here,
a
polyzwitterion
protective
layer
(PZIL)
was
engineered
polymerizing
2-methacryloyloxyethyl
phosphorylcholine
(MPC)
in
carboxymethyl
chitosan
(CMCS),
which
renders
following
merits:
choline
groups
of
MPC
can
preferentially
adsorb
onto
metal
to
avoid
reactions;
charged
phosphate
chelate
Zn2+
regulate
solvation
structure,
further
improving
reaction
inhibition;
Hofmeister
effect
between
ZnSO4
CMCS
enhance
interfacial
contact
during
electrochemical
characterization.
Consequently,
symmetrical
battery
PZIL
keep
stable
more
than
1000
hours
under
ultra-high
current
density
40
mA
cm-2
.
The
confers
Zn/MnO2
full
Zn/active
carbon
(AC)
capacitor
cycling
performance
density.
Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
62(38)
Опубликована: Июль 31, 2023
Stable
Zn
anodes
with
a
high
utilization
efficiency
pose
challenge
due
to
notorious
dendrite
growth
and
severe
side
reactions.
Therefore,
electrolyte
additives
are
developed
address
these
issues.
However,
the
always
consumed
by
electrochemical
reactions
over
cycling,
affecting
cycling
stability.
Here,
hexamethylphosphoric
triamide
(HMPA)
is
reported
as
an
additive
for
achieving
stable
of
anodes.
HMPA
reshapes
solvation
structures
promotes
anion
decomposition,
leading
in
situ
formation
inorganic-rich
solid-electrolyte-interphase.
More
interestingly,
this
decomposition
does
not
involve
HMPA,
preserving
its
long-term
impact
on
electrolyte.
Thus,
symmetric
cells
survive
≈500
h
at
10
mA
cm-2
mAh
or
≈200
40
rate
85.6
%.
The
full
Zn||V2
O5
exhibit
record-high
cumulative
capacity
even
under
lean
condition
(E/C
ratio=12
μL
mAh-1
),
limited
supply
(N/P
ratio=1.8)
areal
(6.6
).
Advanced Materials,
Год журнала:
2023,
Номер
35(49)
Опубликована: Авг. 2, 2023
Abstract
Aqueous
zinc
batteries
have
emerged
as
promising
energy
storage
devices;
however,
severe
parasitic
reactions
lead
to
the
exacerbated
production
of
Zn
dendrites
that
decrease
utilization
rate
anodes.
Decreasing
electrolyte
content
and
regulating
water
activity
are
efficient
means
address
these
issues.
Herein,
this
work
shows
limiting
aqueous
bonding
bacterial
cellulose
(BC)
can
suppress
side
regulate
stable
plating/stripping.
This
approach
makes
it
possible
use
less
limited
foil.
A
symmetric
cell
assembles
with
hydrogel
(electrolyte‐to‐capacity
ratio
E/C
=
1.0
g
(Ah)
−1
)
cycled
stably
at
a
current
density
6.5
mA
cm
−2
achieved
capacity
h
depth
discharge
85%.
Full
cells
BC
delivers
212
retention
83%
after
1000
cycles
5
.
offers
new
fundamental
insights
into
effect
restricting
reshape
plating/stripping
process
provides
route
for
designing
novel
electrolytes
better
stabilize
efficiently
utilize
Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
62(34)
Опубликована: Июль 4, 2023
Zn
metal
as
one
of
the
promising
anodes
aqueous
batteries
possesses
notable
advantages,
but
it
faces
severe
challenges
from
side
reactions
and
notorious
dendrite
growth.
Here,
ultrathin
nanosheets
α-zirconium
phosphate
(ZrP)
are
explored
an
electrolyte
additive.
The
not
only
create
a
dynamic
reversible
interphase
on
also
promote
Zn2+
transportation
in
electrolyte,
especially
outer
Helmholtz
plane
near
ZrP.
Benefited
enhanced
kinetics
interphase,
pouch
cells
Zn||LiMn2
O4
using
this
remarkably
improve
electrochemical
performance
under
harsh
conditions,
i.e.
powders
anode,
high
mass
loading,
wide
temperatures.
results
expand
materials
available
for
provide
insightful
understanding
charge
transfer
realize
combination
all-climate
performance.
Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
62(47)
Опубликована: Авг. 19, 2023
Abstract
Problems
of
zinc
anode
including
dendrite
and
hydrogen
evolution
seriously
degrade
the
performance
batteries.
Solid
electrolyte
interphase
(SEI),
which
plays
a
key
role
in
achieving
high
reversibility
lithium
aprotic
organic
solvent,
is
also
beneficial
to
improvement
aqueous
electrolyte.
However,
various
studies
about
for
electrode
quite
fragmented,
lack
deep
understanding
on
root
causes
or
general
design
rules
SEI
construction.
And
water
molecules
with
reactivity
brings
serious
challenge
effective
Here,
we
reviewed
brief
development
history
batteries
firstly,
then
summarized
approaches
construct
Furthermore,
formation
mechanisms
behind
are
systematically
analyzed,
together
discussion
components
evaluation
electrochemical
types
SEI.
Meanwhile,
between
lab
industrialization
discussed.
Advanced Energy Materials,
Год журнала:
2023,
Номер
13(20)
Опубликована: Апрель 7, 2023
Abstract
Anode‐free
batteriesgreatly
promote
overall
energy
density,
but
they
require
an
extremely
high
Coulombic
efficiency
(CE,
>99.7%)
to
function
normally.
It
becomes
very
challenging
in
aqueous
batteries,
because
of
water‐related
parasitic
reactions
and
dendrite
growth
on
Zn
anodes.
Herein,
aluminum
hydroxide
fluoride
coated
Cu
foils
(Cu@AOF)
is
used
realize
the
anode‐free
batteries.
AOF
exhibits
a
adsorption
affinity
H
2
O
low
diffusion
barrier
for
adatoms,
promoting
desolvation
process
surface
migration.
Meanwhile,
strong
interaction
between
2+
enables
it
regulate
flux
benefit
lateral
growth.
Then,
full
cells
Cu@AOF||Zn
0.5
VO
exhibit
record‐high
cycle
life
2000
cycles
at
1
A
g
−1
with
ultra‐high
average
CE
99.95%.
More
impressively,
cell
shows
long
400
99.94%
−20
°C.
This
work
provides
sheds
light
rational
engineering
electrode
interfaces
obtain
excellent
performance
temperatures.
Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
62(40)
Опубликована: Авг. 11, 2023
Abstract
Metallic
zinc
(Zn)
is
considered
as
one
of
the
most
attractive
anode
materials
for
post‐lithium
metal
battery
systems
owing
to
high
theoretical
capacity,
low
cost,
and
intrinsic
safety.
However,
Zn
dendrites
parasitic
side
reaction
impede
its
application.
Herein,
we
propose
a
new
principle
regulating
p
‐band
center
oxide
protective
coating
balance
adsorption
energy
migration
barrier
effective
deposition
stripping.
Experimental
results
calculations
indicate
that
benefiting
from
uniform
zincophilic
nucleation
sites
fast
transport
on
indium
tin
(ITO),
highly
stable
reversible
can
be
achieved.
As
result,
I−Zn
symmetrical
cell
achieves
deposition/stripping
with
an
extremely
overpotential
9
mV
superior
lifespan
over
4000
h.
The
Cu/I−Zn
asymmetrical
exhibits
long
lifetime
cycles
average
coulombic
efficiency
99.9
%.
Furthermore,
assembled
I−Zn/AC
full
excellent
70000
nearly
100
%
capacity
retention.
This
work
provides
general
strategy
insight
construction
efficient
protection
layer.
Advanced Energy Materials,
Год журнала:
2024,
Номер
14(20)
Опубликована: Фев. 14, 2024
Abstract
Machine
learning
(ML)
exhibits
substantial
potential
for
predicting
the
properties
of
solid‐state
electrolytes
(SSEs).
By
integrating
experimental
or/and
simulation
data
within
ML
frameworks,
discovery
and
development
advanced
SSEs
can
be
accelerated,
ultimately
facilitating
their
application
in
high‐end
energy
storage
systems.
This
review
commences
with
an
introduction
to
background
SSEs,
including
explicit
definition,
comprehensive
classification,
intrinsic
physical/chemical
properties,
underlying
mechanisms
governing
conductivity,
challenges,
future
developments.
An
in‐depth
explanation
methodology
is
also
elucidated.
Subsequently,
key
factors
that
influence
performance
are
summarized,
thermal
expansion,
modulus,
diffusivity,
ionic
reaction
energy,
migration
barrier,
band
gap,
activation
energy.
Finally,
it
offered
perspectives
on
design
prerequisites
upcoming
generations
focusing
real‐time
property
prediction,
multi‐property
optimization,
multiscale
modeling,
transfer
learning,
automation
high‐throughput
experimentation,
synergistic
optimization
full
battery,
all
which
crucial
accelerating
progress
SSEs.
aims
guide
novel
SSE
materials
practical
realization
efficient
reliable
technologies.