ACS Applied Materials & Interfaces,
Journal Year:
2022,
Volume and Issue:
14(16), P. 18625 - 18633
Published: April 13, 2022
Silicon
oxide
(SiOx)
has
outstanding
capacity
and
stable
lithium-ion
uptake/removal
electrochemistry
as
a
anode
material;
however,
its
practical
massive
commercialization
is
encumbered
by
unavoidable
challenges,
such
dynamic
volume
changes
during
cycling
inherently
inferior
ionic
conductivities.
Recent
literature
offered
consensus
that
binders
play
critical
role
in
affecting
the
electrochemical
performance
of
Si-based
electrodes.
Herein,
we
report
an
aqueous
binder,
γ-polyglutamic
acid
cross-linked
epichlorohydrin
(PGA–ECH),
guarantees
enhanced
properties
for
SiOx
anodes
to
implement
long-term
stability.
The
abundant
amide,
carboxyl,
hydroxyl
groups
binder
structure
form
strong
interactions
with
surface,
which
contribute
interfacial
adhesion.
robust
covalent
supramolecular
ensure
mechanical
strength
elasticity.
Additionally,
between
lithium
ions
oxygen
(nitrogen)
atoms
carboxylate
(peptide)
bonds,
serve
Lewis
base,
facilitate
diffusion
ions.
A
using
this
PGA–ECH
exhibits
impressive
initial
discharge
1962
mA
h
g–1
maintains
high
900
after
500
cycles
at
g–1.
Meanwhile,
assembled
SiOx||LiNi0.6Co0.2MnO0.2
full
cell
shows
reversible
155
displays
73%
retention
100
cycles.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
33(46)
Published: July 4, 2023
Abstract
Rechargeable
sodium‐ion
batteries
(SIBs)
are
emerging
as
a
viable
alternative
to
lithium‐ion
battery
(LIB)
technology,
their
raw
materials
economical,
geographically
abundant
(unlike
lithium),
and
less
toxic.
The
matured
LIB
technology
contributes
significantly
digital
civilization,
from
mobile
electronic
devices
zero
electric‐vehicle
emissions.
However,
with
the
increasing
reliance
on
renewable
energy
sources
anticipated
integration
of
high‐energy‐density
into
grid,
concerns
have
arisen
regarding
sustainability
lithium
due
its
limited
availability
consequent
price
escalations.
In
this
context,
SIBs
gained
attention
potential
storage
alternative,
benefiting
abundance
sodium
sharing
electrochemical
characteristics
similar
LIBs.
Furthermore,
high‐entropy
chemistry
has
emerged
new
paradigm,
promising
enhance
density
accelerate
advancements
in
meet
growing
demands.
This
review
uncovers
fundamentals,
current
progress,
views
future
SIB
technologies,
discussion
focused
design
novel
materials.
crucial
factors,
such
morphology,
crystal
defects,
doping,
that
can
tune
electrochemistry,
which
should
inspire
young
researchers
identify
work
challenging
research
problems,
also
reviewed.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
33(13)
Published: Jan. 17, 2023
Abstract
Sodium
(Na)
ion
batteries
(SIBs)
are
promising
in
stationary
energy
storage
applications.
Research
is
also
afoot
to
seek
suitable
electroactive
materials
for
use
SIBs.
Recently,
phosphides
be
used
the
anode
Na
particularly
appealing
due
their
high
specific
capacities
and
low
working
potentials.
The
following
matters
deal
with
inherent
drawbacks
of
large
volume
variation
inferior
interfacial
stability
upon
insertion/extraction,
which
believed
largely
responsible
capacity
cycling
decay.
Despite
striking
progress
addressing
above
drawbacks,
current
studies
on
remain
preliminary.
In
this
review,
an
in‐depth
understanding
regarding
mechanism,
assessment,
phase
change,
reaction
types
provided.
effective
strategies
sound
designs
discussed.
Their
correlations
between
electrochemical
behavior
chemical/structural
characteristics
analyzed,
a
bid
sort
out
basic
ideas
design
high‐performance
that
enable
high‐energy
durable
Doubtless,
experience
knowledge
gained
from
research
shared,
expected
extend
scope
beyond
phosphides.
Small,
Journal Year:
2023,
Volume and Issue:
19(19)
Published: Feb. 8, 2023
Sodium
(Na)
metal
is
able
to
directly
use
as
a
battery
anode
but
have
highly
reductive
ability
of
unavoidably
occurring
side
reactions
with
organic
electrolytes,
resulting
in
interfacial
instability
primary
factor
performance
decay.
Therefore,
building
stable
Na
utmost
significance
for
both
identifying
the
electrochemical
laboratory
half-cells
employed
quantifying
samples
and
securing
success
room-temperature
batteries.
In
this
work,
we
propose
an
NaF-rich
interface
rapidly
prepared
by
pressure
diglyme-induced
defluorination
reaction
anode.
Once
electrolyte
dropped
into
coin-type
cells
followed
slight
squeeze,
surface
immediately
forms
protective
layer
consisting
amorphous
carbon
NaF,
effectively
inhibiting
dendrite
growth
dead
Na.
The
resultant
exhibits
long-term
cycling
lifespan
over
1800
h
even
under
area
capacity
3.0
mAh
cm-2
.
Furthermore,
such
universal
facile
method
readily
applied
daily
assembly
regarding
Advanced Materials,
Journal Year:
2021,
Volume and Issue:
34(23)
Published: Dec. 6, 2021
Superior
high-rate
performance
and
ultralong
cycling
life
have
been
constantly
pursued
for
rechargeable
sodium-ion
batteries
(SIBs).
In
this
work,
a
facile
strategy
is
employed
to
successfully
synthesize
porous
Cox
P
hierarchical
nanostructures
supported
on
flexible
carbon
fiber
cloth
(Cox
P@CFC),
constructing
robust
architecture
of
ordered
nanoarrays.
Via
such
unique
design,
bare
structures
can
thoroughly
expose
the
electroactive
surfaces
electrolyte,
which
favorable
ultrafast
storage.
addition,
CFC
provides
an
interconnected
3D
conductive
network
ensure
firm
electrical
connection
electrode
materials.
Besides
inherent
flexibility
CFC,
integration
with
as
well
strong
synergistic
effect
between
them,
effectively
help
buffer
mechanical
stress
caused
by
repeated
sodiation/desodiation,
thereby
guaranteeing
structural
integrity
overall
electrode.
Consequently,
P@CFC
anode
shows
record-high
capacity
279
mAh
g-1
at
5.0
A
almost
no
attenuation
after
9000
cycles.
