Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(40)
Published: Aug. 29, 2024
Abstract
Aqueous
Zn/V
2
O
5
batteries
are
featured
for
high
safety,
low
cost,
and
environmental
compatibility.
However,
complex
electrode
components
in
real
impede
the
fundamental
understanding
of
phase
transition
processes
intercalation
chemistry.
Here,
model
based
on
V
film
electrodes
which
show
similar
electrochemical
behaviors
as
ones
built.
Advanced
surface
science
characterizations
allow
to
identify
trajectories
Zn
2+
,
H
O,
+
during
processes.
Protons
serve
vanguard
intercalated
species,
facilitating
subsequent
O.
The
increase
capacity
activation
process
is
mainly
due
from
more
active
·nH
structure
caused
by
partial
irreversible
deintercalation
rather
than
sites
induced
grain
refinement
materials.
Eventually,
accumulation
species
within
oxide
results
formation
inactive
(Zn
3
(OH)
7
·2H
O)
structure.
established
chemistry
helps
design
high‐performance
Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(40)
Published: Aug. 29, 2024
Abstract
Aqueous
Zn/V
2
O
5
batteries
are
featured
for
high
safety,
low
cost,
and
environmental
compatibility.
However,
complex
electrode
components
in
real
impede
the
fundamental
understanding
of
phase
transition
processes
intercalation
chemistry.
Here,
model
based
on
V
film
electrodes
which
show
similar
electrochemical
behaviors
as
ones
built.
Advanced
surface
science
characterizations
allow
to
identify
trajectories
Zn
2+
,
H
O,
+
during
processes.
Protons
serve
vanguard
intercalated
species,
facilitating
subsequent
O.
The
increase
capacity
activation
process
is
mainly
due
from
more
active
·nH
structure
caused
by
partial
irreversible
deintercalation
rather
than
sites
induced
grain
refinement
materials.
Eventually,
accumulation
species
within
oxide
results
formation
inactive
(Zn
3
(OH)
7
·2H
O)
structure.
established
chemistry
helps
design
high‐performance