Zinc
ion
batteries
(ZIBs)
have
become
the
most
competitive
candidates
for
next-generation
energy
storage
systems
due
to
its
low-price,
good
safety
and
high
theoretical
capacity.
However,
uncontrollable
dendrite
growth
parasitic
side
reactions
still
hinder
practical
application
of
zinc
batteries.
Herein,
a
hybrid
carbon
quantum
dots
(CQDs)/ZnSO4
electrolyte
is
in-situ
synthesized
via
simple
one-pot
hydrothermal
method
with
glucose
as
precursor.
The
created
CQDs
possess
abundant
anionic
groups
like
hydroxyl,
carboxyl
sulfonic
acid
groups,
those
can
strongly
absorb
Zn2+
ions
then
CQDs,
water
molecules
together
generate
special
solvation
structure
solvated
dot
clusters
[CQDsZnx(H2O)y]2x+.
help
induce
uniform
Zn
deposition
through
co-plating
atoms
functionalized
CQDs.
Additionally,
this
unique
promotes
easier
dissociation
molecules,
thus
decreasing
de-solvation
energy.
lower
barrier
restrain
decomposition
related
by-products.
Benefiting
from
construction
clusters,
functional
endows
better
performance
both
Zn||Zn
symmetric
cells
full
ZIBs.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(30)
Опубликована: Март 25, 2024
Abstract
Aqueous
zinc
ion
batteries
hold
promise
as
alternative
systems
to
lithium‐based
batteries.
However,
practical
development
faces
critical
challenges
due
parasitic
side
reactions
and
dendrite
growth
in
anodes.
While
introducing
electrolyte
additives
is
promising,
monofunctional
offer
limited
protection
the
anode
from
a
single
aspect.
Herein,
disodium
succinate
additive
presented
establish
hydrophobic
zincophilic
dual
electric
layer
structure
on
Zn
surface,
regulate
solvation
of
2+
,
act
pH
buffer
during
cycling.
As
result,
symmetrical
cell
with
an
containing
0.2
m
SADS
shows
durable
life
over
2200
h,
Zn||MnO
2
full
still
maintains
80%
capacity
retention
after
1000
cycles.
In
addition,
both
show
wide
applicability
match
NVO
I
cathode.
This
work
provides
low‐cost
multifunctional
additive,
facilitating
high‐performance
aqueous
Advanced Energy Materials,
Год журнала:
2024,
Номер
14(31)
Опубликована: Май 19, 2024
Abstract
Despite
promising
performance
at
ambient
temperature,
the
development
of
aqueous
zinc
batteries
is
jeopardized
by
freeze
electrolytes
and
deteriorative
electrode‐electrolyte
interphase
low
temperatures.
Herein,
inspired
cryoprotective
mechanism
extracellular
polysaccharides
in
biological
organisms,
a
quaternized
galactomannan
polysaccharide
(q‐GPA)
proposed
as
additive
for
improving
low‐temperature
batteries.
Mechanistic
studies
revealed
that
multi‐hydroxyl
backbone
can
substantially
attenuate
activity
water
molecules
through
reconfiguration
hydrogen
bond
network,
which
inhibits
ice
crystal
formation
subzero
temperatures
thus
depress
freezing
point
electrolyte.
Meanwhile,
quaternary
ammonium
groups
tethered
on
q‐GPA
skeleton
are
intended
to
neutralize
interfacial
electric
field
electrostatic
repulsion,
thereby
accelerating
Zn
2+
deposition
kinetics
prohibiting
dendrite
growth.
Impressively,
q‐GPA–modified
electrolyte
enables
an
extended
lifespan
over
1700
h
Zn||Zn
symmetric
battery
high
current
density
3
mA
cm
−2
ultralong
cycle
life
5000
cycles
with
capacity
retention
99.2%
Zn||Na
2
V
6
O
16
·1.5H
(NVO)
full
−30
°C.
This
work
provides
unprecedented
possibilities
optimizing
formulation
Chemical Science,
Год журнала:
2024,
Номер
15(20), С. 7441 - 7473
Опубликована: Янв. 1, 2024
Manganese-based
materials
are
considered
as
one
of
the
most
promising
cathodes
in
zinc-ion
batteries
(ZIBs)
for
large-scale
energy
storage
applications
owing
to
their
cost-effectiveness,
natural
availability,
low
toxicity,
multivalent
states,
high
operation
voltage,
and
satisfactory
capacity.
However,
intricate
mechanisms
coupled
with
unsatisfactory
cycling
stability
hinder
commercial
applications.
Previous
reviews
have
primarily
focused
on
optimization
strategies
achieving
capacity
fast
reaction
kinetics,
while
overlooking
fluctuation
lacking
a
systematic
discussion
enhance
these
materials.
Thus,
this
review,
manganese-based
ZIBs
different
structures
systematically
elucidated
summarized.
Next,
ZIBs,
including
activation,
degradation,
dynamic
evolution
whole
cycle
calendar
comprehensively
analyzed.
Finally,
constructive
based
chemistry
one-electron
two-electron
transfers
durable
performance
proposed.
ACS Energy Letters,
Год журнала:
2024,
Номер
9(7), С. 3380 - 3390
Опубликована: Июнь 14, 2024
The
chaotropic
salt
electrolyte
(CSE)
has
become
an
effective
strategy
to
activate
low-temperature
aqueous
zinc-ion
batteries.
However,
the
Zn
battery
performance
been
largely
compromised
due
side
reaction
of
active
water
molecules
in
CSE.
Herein
we
design
a
Zn(BF4)2
propylene
carbonate–water
cosolvent
that
facilitates
zinc
plating/stripping
wide
temperature
range
(−40
60
°C).
Theoretical
and
experimental
results
demonstrate
dual
effect
carbonate
on
regulating
hydrogen
bond
network
reshaping
Zn2+
solvation
structure,
bringing
antifreezing
property
smooth
plating/stripping.
Consequently,
at
−20
°C,
Cu//Zn
asymmetric
cell
can
achieve
stable
cycling
for
over
4000
h
0.5
mAh
cm–2.
At
−40
Zn//tetrachlorobenzoquinone
full
deliver
reversible
specific
capacity
77.9
g–1
after
700
cycles.
This
work
presents
development
high-performance
ZIBs
range.
Advanced Functional Materials,
Год журнала:
2023,
Номер
34(12)
Опубликована: Дек. 10, 2023
Abstract
A
key
challenge
to
apply
aqueous
zinc‐metal
batteries
(AZMBs)
as
next‐generation
energy
storage
devices
is
eliminate
the
adverse
reactions
of
hydrogen
evolution,
especially
in
low
current.
Here,
superhydrophobic
and
ionophilic
artificial
solid
electrolyte
interface
(HI‐SEI)
on
zinc
anode
proposed
constructed
by
enhancing
roughness
etching
ion
channels
universal
polysiloxane
polymer
backbones.
The
HI‐SEI
exhibits
superhydrophobicity
with
high
contact
angle
151.5°
ionophilicity
activation
23.97
kJ
mol
−1
.
Thus,
isolates
Zn
metal
solvent
water
promotes
desolvation
kinetics
2+
Besides,
alters
double
electric
layer
structure
form
a
compact
hardly
any
adsorbed
water,
achieving
small
nucleation
overpotential
5
mV
self‐corrosion
current
density
0.95
µA
cm
−2
Moreover,
symmetric
cell
HI‐SEI@Zn
has
cycle
life
>1330
h
at
0.1
mA
And
full
NaV
3
O
8
‐1.5H
2
cathode
provides
long
capacity
degradation
(180
mAh
g
after
1100
cycles).
Hopefully,
SEI
designs
based
such
strategy
will
be
able
improve
low‐current
cycling
performance
AZMBs.
Abstract
Aqueous
zinc‐ion
batteries
(AZIBs)
directly
using
zinc
metal
anodes
are
promising
candidates
for
grid‐scale
energy
storage
systems
due
to
their
intrinsic
high
theoretical
capacity,
safety,
and
environmental
friendliness.
However,
the
uncontrolled
dendrite
growth
water‐triggered
side
reactions
seriously
plague
its
practical
application.
Herein,
a
cost‐effective
green
additive,
maltodextrin
(MD)
is
presented,
simultaneously
guide
smooth
Zn
deposition
inhibit
occurrence
of
water‐related
reactions.
Combing
experimental
characterizations
calculations
shows
that
MD
molecules
could
reconstruct
Helmholtz
plane,
induces
preferential
along
(002)
optimized
regulation
2+
diffusion
path
location
also
results
in
formation
fine‐grained
layers,
thereby
inhibiting
growth.
In
addition,
readily
adsorb
anode
surface,
which
isolates
water
from
direct
contact
with
metal,
reducing
hydrogen
precipitation
by‐products.
Consequently,
Zn||Zn
symmetric
cell
achieves
ultra‐long
stable
cycles
up
5430
h
at
1
mA
cm
−2
,
Cu||Zn
asymmetric
can
cycle
1000
an
average
coulomb
efficiency
99.78%.
