Improved Mn4+/Mn2+ Contribution in High‐Voltage Zn–MnO2 Batteries Enabled by an Al3+‐Ion Electrolyte
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(48)
Published: Aug. 27, 2024
Abstract
Rechargeable
aqueous
Zn–MnO
2
batteries
are
attracting
attention
as
a
cost‐effective
and
safe
energy
storage
solution,
but
their
commercialization
faces
challenges
due
to
limited
stability,
output
voltage,
density.
Herein,
hybrid‐ion
system
with
enhanced
Mn
4+
/Mn
2+
electrochemical
contribution
is
introduced
using
an
Al
3+
‐based
electrolyte.
Compared
conventional
Zn
electrolytes,
the
hybrid
/Zn
cell
offers
higher
voltage
of
1.75
V,
capacities
up
469
mAh
g
−1
,
outstanding
densities
≈730
Wh
kg
at
0.3
A
.
Besides,
‐enabled
battery
shows
100%
capacity
density
retention
after
10,000
cycles
Even
high
mass–loading
6.2
mg
cm
−2
≈200
maintained
for
over
100
cycles.
This
performance
related
different
intercalation
reaction
mechanisms,
proved
by
combination
analysis
ex‐situ
x
‐ray
diffraction
characterization
cells
discharge
stages.
ions,
Lewis
strong
acid,
contribute
in
two
significant
ways:
through
highly
reversible
intercalation/de‐intercalation
that
substantially
boosts
capacitance
low
current
rates,
promoting
aided
H
+
dominates
rates.
Overall,
this
work
demonstrates
practical
potential
low‐cost
stationary
habilitated
multiple
ion
co‐intercalation.
Language: Английский
Advanced Aqueous Electrolytes for Aluminum-Ion Batteries: Challenges and Opportunities
Energy storage materials,
Journal Year:
2025,
Volume and Issue:
unknown, P. 104211 - 104211
Published: March 1, 2025
Language: Английский
Recent Advances in In Situ Characterization of the Electrochemical Processes at the Alloy Anode-Electrolyte Interfaces
Ruizhi Liu,
No information about this author
Rui Wen
No information about this author
Langmuir,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 6, 2025
Lithium-metal
batteries
(LMBs)
have
garnered
widespread
attention
due
to
their
high
energy
density.
Alloy
anodes
are
particularly
notable
for
exceptional
specific
capacity
used
in
LMBs.
However,
alloy
encounter
significant
challenges
interfacial
issues,
which
include
sluggish
reaction
kinetics
and
mechanical
failures
induced
by
force-electric
coupling
at
the
interface.
In
situ
characterization
of
interface
evolution
is
crucial
gain
a
deeper
understanding
fundamental
origins
these
issues.
This
review
systematically
examines
associated
with
highlights
role
techniques
elucidating
kinetics,
mechanisms,
dendrite
formation
anode-electrolyte
The
future
development
this
field
proposed
outlook.
Language: Английский
Beyond Lithium: Future Battery Technologies for Sustainable Energy Storage
Energies,
Journal Year:
2024,
Volume and Issue:
17(22), P. 5768 - 5768
Published: Nov. 18, 2024
Known
for
their
high
energy
density,
lithium-ion
batteries
have
become
ubiquitous
in
today’s
technology
landscape.
However,
they
face
critical
challenges
terms
of
safety,
availability,
and
sustainability.
With
the
increasing
global
demand
energy,
there
is
a
growing
need
alternative,
efficient,
sustainable
storage
solutions.
This
driving
research
into
non-lithium
battery
systems.
paper
presents
comprehensive
literature
review
on
recent
advancements
technologies,
specifically
sodium-ion,
potassium-ion,
magnesium-ion,
aluminium-ion,
zinc-ion,
calcium-ion
batteries.
By
consulting
peer-reviewed
articles
reviews,
we
examine
key
electrochemical
properties
underlying
chemistry
each
system.
Additionally,
evaluate
safety
considerations,
environmental
sustainability,
recyclability.
The
reviewed
highlights
promising
potential
to
address
limitations
batteries,
likely
facilitate
scalable
solutions
across
diverse
applications.
Language: Английский
Study on the Performance of Aqueous Aluminum‐Ion Battery with Al[TFSI]3 Electrolyte
Energy Technology,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 18, 2024
Aqueous
aluminum‐ion
batteries
have
higher
energy
density
and
lower
cost
than
traditional
rechargeable
batteries.
Electrolytes
play
a
vital
role
in
aqueous
battery
are
directly
related
to
performance.
However,
ionic
liquid
electrolytes
suitable
for
aluminum
expensive
potential
environmental
problems.
To
improve
the
reduce
impact,
this
study
innovatively
proposes
new
electrolyte.
In
article,
preparation
performance
testing
bench
is
built
prepare
battery.
A
novel
proposed
using
α‐MnO
2
as
positive
electrode,
eutectic
mixture‐coated
anode
(UTAl)
negative
bistrifluoromethanesulfonate
(Al[TFSI]
3
)
solution
The
electrochemical
of
prepared
studied
under
multiple
working
conditions.
results
show
that
assembled
UTAl/Al[TFSI]
/α‐MnO
exhibits
an
ultrahigh
first‐cycle
specific
up
420
mAh
g
−1
at
room
temperature
current
50
mA
5
mol
L
Al[TFSI]
.
newly
developed
can
achieve
capacity
retention
rate
63.4%,
Coulombic
efficiency
over
94%,
stable
charge
discharge
voltage
platform
1.65
1.4
V.
Language: Английский