Solid-state
lithium
metal
batteries
(SSLMBs)
are
promising
next-generation
energy
storage
due
to
their
high
safety
and
density,
but
dendrite
growth
in
solid
electrolytes
hinders
application.
We
propose
an
situ
grain
boundary
(GB)
modification
strategy
using
LiTaO3
(LTO)
reacting
with
Ta-doped
garnet
electrolyte
form
a
pseudocrystal
Li3TaO4/Zr3O
(LZT)
phase
at
GBs.
The
LZT
reduces
electronic
conductivity,
inhibits
abnormal
growth,
strengthens
GBs
bonding,
enhances
fracture
toughness,
effectively
suppressing
formation.
modified
(2LTaO)
achieves
ultralow
conductivity
of
8.58
×
10-9
S
cm-1.
Symmetrical
Li
|
2LTaO
cells
demonstrate
critical
current
density
2.2
mA
cm-2
stable
cycling
for
12,000
h
0.3
cm-2.
Full
exhibit
excellent
stability
rate
performance.
This
provides
approach
the
development
high-performance
SSLMBs.
Chemical Society Reviews,
Год журнала:
2023,
Номер
52(23), С. 8194 - 8244
Опубликована: Янв. 1, 2023
Unlike
conventional
recycling
methods
that
focus
on
'extraction',
direct
aims
for
'repair',
which
necessitates
selecting
and
designing
a
strategy
based
the
failure
mechanisms
of
spent
lithium
ion
battery
materials.
Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
62(24)
Опубликована: Апрель 12, 2023
The
non-metal
NH4+
carrier
has
attracted
tremendous
interests
for
aqueous
energy
storage
owing
to
its
light
molar
mass
and
fast
diffusion
in
electrolytes.
Previous
study
inferred
that
ion
layered
VOPO4
⋅2
H2
O
is
impossible
due
the
removal
of
from
NH4
leads
a
phase
change
inevitably.
Herein,
we
update
this
cognition
demonstrated
highly
reversible
intercalation/de-intercalation
behavior
host.
Satisfactory
specific
capacity
154.6
mAh
g-1
at
0.1
A
very
stable
discharge
potential
plateau
0.4
V
based
on
reference
electrode
was
achieved
O.
rocking-chair
ammonium-ion
full
cell
with
O//2.0
M
OTf//PTCDI
configuration
exhibited
55
,
an
average
operating
voltage
about
1.0
excellent
long-term
cycling
stability
over
500
cycles
coulombic
efficiency
≈99
%.
Theoretical
DFT
calculations
suggest
unique
crystal
water
substitution
process
by
ammonium
during
intercalation
process.
Our
results
provide
new
insight
into
ions
hydrated
phosphates
through
enhancement
effect.
Advanced Functional Materials,
Год журнала:
2023,
Номер
34(5)
Опубликована: Май 17, 2023
Abstract
Sodium‐ion
batteries
(SIBs)
with
wide
operating
temperature
are
regarded
as
promising
candidates
for
large‐scale
energy
storage
systems.
However,
SIBs
under
elevated
aggravate
the
electrolyte
decomposition
unstable
cathode‐electrolyte
interphase
(CEI),
causing
a
rapid
capacity
degradation.
Herein,
anion
receptor
tris(pentafluorophenyl)borane
(TPFPB)
is
selected
additive
to
construct
robust
NaF‐rich
CEI.
The
strong
interactions
between
and
TPFPB
via
electron‐deficient
boron
atoms
weaken
ClO
4
−
solvation
promote
coordination
capability
solvents
Na
+
cations,
demonstrating
greatly
improved
oxidative
stability.
3
V
2
(PO
)
cathode
in
TPFPB‐containing
delivers
long‐term
stability
retention
of
86.9%
after
100
cycles
at
high
cut‐off
voltage
4.2
(vs.
/Na)
60
°C.
Besides,
also
works
well
enhanced
performance
over
range
from
−30
This
study
proposes
prospective
method
by
manipulating
chemistry
constructing
high‐temperature
rechargeable
SIBs.
Prussian
blue
analogs
(PBAs)
have
attracted
wide
interest
as
a
class
of
ideal
cathodes
for
rechargeable
sodium-ion
batteries
due
to
their
low
cost,
high
theoretical
capacity,
and
facile
synthesis.
Herein,
series
highly
crystalline
Fe-based
PBAs
(FeHCF)
cubes,
where
HCF
stands
the
hexacyanoferrate,
is
synthesized
via
one-step
pyrophosphate-assisted
co-precipitation
method.
By
applying
this
proposed
crystallization-controlled
method
slow
down
crystallization
process
suppress
defect
content
crystal
framework
PBAs,
as-prepared
materials
demonstrate
sodium-rich
induced
rhombohedral
phase.
As
result,
prepared
FeHCF
can
deliver
specific
capacity
up
152.0
mA
h
g-1
(achieving
≈90%
its
value)
an
excellent
rate
capability
with
high-capacity
retention
ratio
88%
at
10
C,
which
makes
it
one
most
competitive
candidates
among
reported
regarding
both
performance.
A
reversible
three-phase-transition
storage
mechanism
has
been
revealed
multiple
in
situ
techniques.
Furthermore,
full
cells
fabricated
cathode
commercial
hard
carbon
anode
exhibit
compatibility
shows
great
prospects
application
large-scale
energy
systems.
Physica Scripta,
Год журнала:
2023,
Номер
98(12), С. 125977 - 125977
Опубликована: Ноя. 16, 2023
Abstract
Hard
carbon
(HC),
as
a
promising
anode
material
for
sodium
ion
batteries,
its
sluggish
diffusion
performance
hinders
further
improvement
of
electrochemical
performance.
In
the
preparation
process
HC
materials,
screening
and
treatment
precursors
can
optimize
structure
morphology
products,
affecting
Here,
we
use
peptone
precursor
prepare
flaky
N-doped
(PFNC)
through
one-step
annealing
method.
Benefitting
from
this
structure,
prepared
PNFC
delivers
specific
capacity
315.5
mAh
g
−1
at
current
density
20
mA
with
excellent
rate
cyclic
stability.
This
work
proves
that
is
valuable
precursor,
opening
new
avenue
application
development
HC.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(23)
Опубликована: Фев. 12, 2024
Abstract
Vanadium
based
NASICON‐type
cathodes
are
faced
with
the
exorbitant
cost
and
underdeveloped
multi‐electrons
reaction
of
V
species.
In
this
work,
a
strategy
increased
covalency
NASICON
framework
combined
reversible
activation
4+
/V
5+
couple
is
proposed
to
improve
electrochemical
performance
together
energy
density
V‐based
cathodes.
Making
full
use
2+
3+
Ti
/Ti
redox
couples,
Na
2.5
VTi
0.5
Al
(PO
4
)
3
exhibits
admirable
performance,
including
high
specific
capacity
160.9
mAh
g
−1
at
0.1
C
favorable
cycling
stability
(a
retention
88.3%
20
after
1000
cycles).
Moreover,
cathode
displays
outstanding
low
temperature
0
°C
89%
1200
cycles
5
C.
situ
XRD
EIS
analysis
conducted
reveal
+
storage
mechanism.
The
reveals
lattice
volume
variation
2.16%
upon
cycling,
which
responsible
for
structural
during
extraction
intercalation
process
.
Applying
as
both
anode
electrode,
symmetric
cell
assembled
exceptional
59.8
research
provides
an
effective
routine
stimulate
potential
electrode
materials.
ACS Sustainable Chemistry & Engineering,
Год журнала:
2024,
Номер
12(7), С. 2511 - 2530
Опубликована: Фев. 5, 2024
Since
1990,
lithium-ion
batteries
(LIBs)
have
been
booming
in
the
last
decades.
Because
they
are
ecofriendly
and
rechargeable,
LIBs
widely
used
portable
devices,
electric
vehicles,
even
satellites
aerospace.
However,
limited
lifespan
intensive
growth
of
spent
result
serious
accumulation
depletion
to
hazardous
waste.
This
review
critically
summarizes
state-of-the-art
scrapped
on
recycling
benefits
national
policies.
Also
advantages
disadvantages
various
technologies
efficiency,
electrochemical
performance
restored
materials,
economic
environmental
issues
compared
discussed.
A
green,
feasible,
sustainable
strategy
with
high
efficiency
for
(including
cathodes,
anodes,
electrolytes,
other
metallic
materials)
is
explored
discussed
detail.
Finally,
mode,
challenges,
developing
tendency
battery
production,
design,
management
system
put
forward
speculated.
