Improving upon rechargeable battery technologies: On the role of high-entropy effects
Energy & Environmental Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
An
overview
of
high-entropy
strategies
for
batteries
is
provided,
emphasizing
their
unique
structural/compositional
attributes
and
positive
effects
on
stability
performance,
alongside
a
discussion
key
challenges
future
research
directions.
Language: Английский
Activating Reversible V4+/V5+ Redox Couple in NASICON‐Type Phosphate Cathodes by High Entropy Substitution for Sodium‐Ion Batteries
Siya Wang,
No information about this author
Jin Bai,
No information about this author
Peiyao Wang
No information about this author
et al.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 28, 2025
Abstract
Vanadium‐based
Na
superionic
conductor
(NASICON)
type
materials
(Na
x
VM(PO
4
)
3
,
M
=
transition
metals)
have
attracted
extensive
attention
when
used
as
sodium‐ion
batteries
(SIBs)
cathodes
due
to
their
stable
structures
and
large
+
diffusion
channels.
However,
the
poor
electrical
conductivity
mediocre
energy
density,
which
hinder
practical
applications.
Activating
V
4+
/V
5+
redox
couple
(V
≈4.1
vs
/Na)
is
an
effective
way
elevate
density
of
SIBs,
whereas
irreversible
phase
severe
structural
distortion
will
inevitably
result
in
fast
capacity
fading
unsatisfactory
rate
capability.
Herein,
a
high
entropy
regulation
strategy
proposed
optimize
detailed
crystal
structure
improve
reversibility
crystalline
transformation
material.
With
activated
reversible
couple,
structure,
electrochemical
kinetics,
material
3.2
1.5
Fe
0.1
Al
Cr
Mn
Cu
(PO
(NVMP‐HE)
exhibits
outstanding
performance
with
highly
specific
120.1
mAh
g
−1
at
C
excellent
cycling
stability
(92.4%
retention
after
1000
cycles
20
C).
Besides,
situ
X‐ray
diffraction
(XRD)
measurement
reveals
that
smooth
three‐phase
reaction
involved
this
high‐entropy
cathode
existence
mesophase
facilitates
transition.
Language: Английский
Recent Advances in Vanadium‐Based Cathode Materials for Aqueous Zinc‐Ion Batteries: from Fundamentals to Practical Applications
Wei Zheng,
No information about this author
Zhonghui Sun,
No information about this author
Zhen‐Yi Gu
No information about this author
et al.
Advanced Materials Technologies,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 1, 2025
Abstract
In
recent
years,
aqueous
zinc‐ion
batteries
(AZIBs)
have
become
an
ideal
candidate
technology
for
large‐scale
energy
storage
systems
due
to
their
high
safety,
low
cost,
and
environmentally
friendly
characteristics.
However,
problems
such
as
the
dissolution
of
cathode
materials
conductivity
hindered
practical
application
AZIBs.
Vanadium‐based
exhibit
significant
advantages
in
AZIBs
by
multivalent
redox
activity
(V
2+
/V
5+
),
tunable
layered/tunneled
crystal
structure,
theoretical
capacity
(589
mAh
g
−1
).
this
paper,
mechanism
vanadium‐based
materials,
material
classification,
modification
strategies,
including
pre‐intercalation,
defect
engineering,
ion
doping,
nanostructure
design,
composite
construction
are
systematically
reviewed.
Through
these
in‐depth
analyses
summaries,
it
is
expected
provide
guidance
reference
design
development
cathodes
high‐performance
future.
Language: Английский
Engineering Lattice Distortion and grain size in α-V2O5 for Enhanced Zinc Storage: Correlating Structural Evolution with Three-Stage Electrochemical Behavior in Zinc-Ion Batteries
Yanzi Lei,
No information about this author
Bin Zhang,
No information about this author
Luyao Luo
No information about this author
et al.
Journal of Alloys and Compounds,
Journal Year:
2024,
Volume and Issue:
unknown, P. 178385 - 178385
Published: Dec. 1, 2024
Language: Английский