Lithium
(Li)
metal
batteries
have
been
extensively
studied
for
their
high
energy
density,
but
uncontrolled
Li
dendrites
and
severe
volume
fluctuation
significantly
limit
commercial
applications.
To
address
this
issue
in
anodes,
a
flexible
self-supporting
film
was
developed
by
integrating
Cu2O/Cu
heterojunction
with
gradient
distribution
three-dimensional
(3D)
single-walled
carbon
nanotube
(SWCNT)
network.
The
top-down
can
serve
as
nucleation
sites
combined
the
porous
structure
of
3D
scaffold,
achieving
massive
deposition
film.
Moreover,
Mott-Schottky
junction
between
Cu2O
Cu
trigger
built-in
electric
field
(BIEF)
at
heterointerfaces,
thereby
accelerating
electron
transfer
Li+
migration.
Benefiting
from
physicochemical
bidirectional
regulation,
Cu2O/Cu@SWCNT/Li
realizes
an
ultralow
voltage
polarization
13
mV
prolonged
cycling
stability
over
1800
h
symmetric
cell
(1
mA
cm-2
1
mAh
cm-2).
Additionally,
shows
excellent
cycle
Cu2O/Cu@SWCNT-Li//LiFePO4
full
cell,
providing
practical
ideas
subsequent
design
lithium
anodes.
ChemPhysChem,
Journal Year:
2024,
Volume and Issue:
25(8)
Published: Feb. 7, 2024
Comparing
with
the
commercial
Li-ion
batteries,
Li
metal
secondary
batteries
(LMB)
exhibit
unparalleled
energy
density.
However,
many
issues
have
hindered
practical
application.
As
an
element
in
lithium
and
anode-free
role
of
current
collector
is
critical.
cathode
collector,
more
requirements
been
imposed
on
anode
as
side
usually
starting
point
thermal
runaway
other
risks,
additionally,
battery
very
likely
determines
cycling
life
full
cell.
In
review,
we
first
give
a
systematic
introduction
copper
related
challenges,
then
summarize
main
approaches
that
mentioned
research,
including
Cu
3D
architecture,
lithophilic
modification
artificial
SEI
layer
construction
carbon
or
polymer
decoration
collector.
Finally,
prospective
comment
future
development
this
field.
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(42), P. 57603 - 57613
Published: Oct. 12, 2024
Composite
copper
foil
is
considered
to
be
the
future-proof
anode
current
collector
solution
for
lithium-ion
batteries
(LIBs)
with
high
energy
density,
its
light
weight
and
low
cost.
Polypropylene
(PP)
film
widely
used
as
support
layer
of
composite
collectors
(CCs)
due
excellent
mechanical
properties
chemical
stability.
However,
interface
adhesion
between
PP
weak,
significant
difference
in
surface
energy.
In
this
study,
we
prepared
a
hydrophilic
by
air
plasma
treatment.
After
magnetron
sputtering
electroplating,
(PP@Cu-1)
strong
was
then
successfully
prepared.
T-peel
test,
PP@Cu-1,
pull
required
separate
from
approximately
7
times
that
PP@Cu-0.
The
PP@Cu-1
exhibits
electrochemical
when
applied
LIBs.
As
an
CC
material,
it
could
favorable
competitor
conventional
commercial
Bare
Cu
holds
broad
prospects
application
high-energy-density
