Weaving of Zn2V2O7 and VO2(B) nanoribbons by carbon nanotubes for aqueous zinc-ion batteries at room and high temperatures
Journal of Power Sources,
Journal Year:
2025,
Volume and Issue:
635, P. 236504 - 236504
Published: Feb. 16, 2025
Language: Английский
Capturing Failure Mechanisms in Vanadium Oxide Cathodes for Aqueous Zinc Batteries
Research Square (Research Square),
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 26, 2025
Abstract
Aqueous
zinc
ion
batteries
(ZIBs)
attract
increasing
attention
as
alternative
energy
storage
technologies
due
to
their
merits
of
safety
and
low
cost.
However,
the
continuous
dissolution
active
materials
in
vanadium
oxide-based
ZIBs
has
posed
an
unavoidable
challenge.
Here,
we
systematically
analyzed
mechanism
using
both
ex-situ
in-situ
methods.
Experimental
theoretical
analyses
revealed
excessive
reduction
valence
following
H
+
insertion
at
potentials
above
1.0
V
(
vs.
Zn
2+/Zn),
primarily
contributing
rather
than
Zn
2+
insertion.
Protons
preferentially
form
monodentate
coordination
with
oxygen,
local
electron
density
around
atoms
facilitating
more
transitions
from
1
s
higher-energy
3
d
states.
This
leads
a
pronounced
V-valence
V-O
bond
breakage.
Specifically,
interlayer-inserted
exhibits
highest
its
significant
binding
compared
surface-inserted
H
+.
As
proof
concept,
without
additives
or
cathode
modifications,
electrochemical
improvements
Zn/NH
4V
4O
10
Zn/V
2O
5
were
achieved
by
reducing
cut-off
voltage
current
high
directly
inhibit
promote
favorable
surface-dominant
We
contend
that
understanding
chemistry
electrochemistry-related
failure
mechanisms
are
crucial
for
designing
Adv.
Mater.
applications.
Language: Английский
Regulatory engineering of cathode for advanced quasi-solid-state zinc-ion battery
Zekun Zhang,
No information about this author
Yutong Xing,
No information about this author
Haotian Zhao
No information about this author
et al.
Journal of Alloys and Compounds,
Journal Year:
2025,
Volume and Issue:
unknown, P. 180283 - 180283
Published: April 1, 2025
Language: Английский
VO2/MoS2 heterostructure synergized oxygen vacancies as a cathode material for high-performance hybrid Mg/Li-ion batteries over a wide temperature range
Wen Wang,
No information about this author
Chuyuan Lin,
No information about this author
Fenqiang Luo
No information about this author
et al.
Journal of Alloys and Compounds,
Journal Year:
2024,
Volume and Issue:
unknown, P. 178281 - 178281
Published: Dec. 1, 2024
Language: Английский