Sensors,
Journal Year:
2024,
Volume and Issue:
24(16), P. 5427 - 5427
Published: Aug. 22, 2024
In
this
paper,
we
present
a
cost-effective
system
for
monitoring
and
controlling
alkaline
electrolyzers,
intending
to
improve
hydrogen
gas
production
on
laboratory
scale.
Our
work
includes
two
main
innovations.
Firstly,
suggest
an
approach
calibrate
standard
air
flow
meter
accurately
measure
the
of
hydrogen-rich
from
improving
measurement
accuracy
while
keeping
costs
low.
Secondly,
introduce
unique
cascade
control
method
manage
in
electrolyzer,
ensuring
precise
over
rates.
By
combining
affordable,
energy-efficient
devices
with
PI
system,
achieve
efficient
through
electrolysis,
replacing
manual
approaches.
Experimental
results
confirm
effectiveness
our
method,
demonstrating
stable
operation
minimal
errors.
These
provide
foundation
further
research
into
strategies
enhance
performance
electrolytic
cells.
International Journal of Electrochemical Science,
Journal Year:
2024,
Volume and Issue:
19(5), P. 100557 - 100557
Published: March 20, 2024
Poor
safety
of
liquid
electrolytes
and
low
ionic
conductivity
solid
under
room
temperature
are
two
major
constraints
for
high
energy
density,
long-term
stability
lithium-ion
batteries
(LIBs).
In
order
to
remedy
the
deficiencies,
a
quasi-solid
electrolyte
(QSE)
is
developed
by
immobilizing
into
host
porous
2-Methylimidazole
zinc
salt
(ZIF-8),
then
mixing
them
with
polymer
solvent
polyoxyethylene
(PEO).
The
QSE
has
an
0.44
mS
cm-1
at
20
oC
2.27
50
oC.
assembled
LiFePO4/QSE/Li
exhibit
excellent
electrochemical
performance
in
wide
range.
A
reversible
capacity
129.7
mAh
g-1
0.5
C
retentation
94.7%
achieved
after
100
cycles.
Especially,
LiFePO4/QSE/graphite
pouch
full
cell
exhibits
retention
97.7%
25
These
results
indicate
that
suitable
candidate
enhancing
LIBs.
Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
136(41)
Published: July 22, 2024
Abstract
The
lack
of
stable
solid‐state
electrolytes
(SSEs)
with
high‐ionic
conductivity
and
the
rational
design
electrode/electrolyte
interfaces
remains
challenging
for
lithium
batteries.
Here,
first
time,
a
high‐performance
lithium‐oxygen
(Li−O
2
)
battery
is
developed
based
on
Li‐ion‐conducted
hydrogen‐bonded
organic
framework
(LHOF)
electrolyte
HOF‐DAT@CNT
composite
cathode.
Benefiting
from
abundant
dynamic
hydrogen
bonding
network
in
backbone
LHOF‐DAT
SSEs,
fast
Li
+
ion
transport
(2.2×10
−4
S
cm
−1
),
high
transference
number
(0.88),
wide
electrochemical
window
5.05
V
are
achieved.
Symmetric
batteries
constructed
SSEs
exhibit
stably
cycled
duration
over
1400
h
uniform
deposition,
which
mainly
stems
jumping
sites
that
promote
uniformly
rate
flux
hydrogen‐bonding
structure
can
relieve
structural
changes
during
transport.
SSEs‐based
Li−O
specific
capacity
(10335
mAh
g
cycling
life
up
to
150
cycles.
Moreover,
metal
endow
good
capability
(129.6
at
0.5
C),
long‐term
discharge/charge
stability
(210
cycles).
opens
an
avenue
development
novel
Sensors,
Journal Year:
2024,
Volume and Issue:
24(16), P. 5427 - 5427
Published: Aug. 22, 2024
In
this
paper,
we
present
a
cost-effective
system
for
monitoring
and
controlling
alkaline
electrolyzers,
intending
to
improve
hydrogen
gas
production
on
laboratory
scale.
Our
work
includes
two
main
innovations.
Firstly,
suggest
an
approach
calibrate
standard
air
flow
meter
accurately
measure
the
of
hydrogen-rich
from
improving
measurement
accuracy
while
keeping
costs
low.
Secondly,
introduce
unique
cascade
control
method
manage
in
electrolyzer,
ensuring
precise
over
rates.
By
combining
affordable,
energy-efficient
devices
with
PI
system,
achieve
efficient
through
electrolysis,
replacing
manual
approaches.
Experimental
results
confirm
effectiveness
our
method,
demonstrating
stable
operation
minimal
errors.
These
provide
foundation
further
research
into
strategies
enhance
performance
electrolytic
cells.
