Chemical Science,
Год журнала:
2024,
Номер
15(12), С. 4238 - 4274
Опубликована: Янв. 1, 2024
In
response
to
societal
developments
and
the
growing
demand
for
high-energy-density
battery
systems,
alkali
metal
batteries
(AMBs)
have
emerged
as
promising
candidates
next-generation
energy
storage.
Despite
their
high
theoretical
specific
capacity
output
voltage,
AMBs
face
critical
challenges
related
reactivity
with
electrolytes
unstable
interphases.
This
review,
from
perspective
of
electrolytes,
analyzes
AMB
failure
mechanisms,
including
interfacial
side
reactions,
active
materials
loss,
dendrite
growth.
It
then
reviews
recent
advances
in
innovative
electrolyte
molecular
designs,
such
ether,
ester,
sulfone,
sulfonamide,
phosphate,
salt,
aimed
at
overcoming
above-mentioned
challenges.
Finally,
we
propose
current
design
principles
future
directions
that
can
help
precise
design.
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(22), С. 28537 - 28549
Опубликована: Май 23, 2024
The
structural
and
interfacial
instability
of
Ni-rich
layered
cathodes
LiNi0.9Co0.05Mn0.05O2
(NCM9055)
severely
hinders
their
commercial
application.
In
this
work,
straightforward
high-temperature
solid-state
methods
are
utilized
to
successfully
synthesize
Nb-doped
Li3PO4-coated
by
combining
two
niobium
sources,
NbOPO4·3H2O
Nb2O5,
for
the
first
time.
Studies
indicate
that
Nb
doping
enhanced
integrity
structure,
Li3PO4
coating
reduced
water
absorption
on
surface
considerably
boosted
durability
interface.
dual-modified
cathode
Li(Ni0.9Co0.05Mn0.05)0.985Nb0.015O2@Li3PO4
(NCM-2)
exhibits
remarkable
cycling
rate
performance.
initial
discharge
specific
capacity
NCM-2
is
203.33
mAh
g-1
at
0.1
C
196.04
1
C,
while
retention
after
200
cycles
91.38%
which
much
higher
than
pristine
NCM9055
(49.96%).
addition,
it
also
provides
a
superior
about
175.63
even
5
C.
This
study
emphasizes
feasible
approach
enhancing
stability
interfaces
bulk
structures.
The
ongoing
advancements
in
lithium-ion
battery
technology
are
pivotal
propelling
the
performance
of
modern
electronic
devices
and
electric
vehicles.
Amongst
various
components,
cathode
material
significantly
influences
performance,
such
as
specific
capacity,
capacity
retention
rate
performance.
Ternary
materials,
composed
nickel,
manganese,
cobalt
(NCM),
offer
a
balanced
combination
these
traits.
Recent
developments
focus
on
elemental
doping,
which
involves
substituting
fraction
NCM
constituent
ions
with
alternative
cations
aluminum,
titanium,
or
magnesium.
This
strategic
substitution
aims
to
enhance
structural
stability,
increase
retention,
improve
resistance
thermal
runaway.
Doped
ternary
materials
have
shown
promising
results,
improvements
cycle
life
operational
safety.
However,
quest
for
optimal
doping
elements
concentrations
persists
maximize
while
minimizing
cost
environmental
impact,
ensuring
progression
towards
high-energy-density,
durable,
safe
technologies.
ACS Nano,
Год журнала:
2023,
Номер
17(22), С. 22167 - 22182
Опубликована: Ноя. 8, 2023
The
advancement
of
electrode
materials
plays
a
pivotal
role
in
enhancing
the
performance
energy
storage
devices,
thereby
meeting
escalating
need
for
and
aligning
with
imperative
sustainable
development.
Atomic
manufacturing
enables
precise
manipulation
crystal
structure
at
atomic
level,
facilitating
development
customized
physicochemical
properties
their
performance.
In
this
Perspective,
we
elaborate
on
how
enhances
important
materials.
Finally,
anticipate
prospect
fabrication
methods
future.
This
Perspective
provides
comprehensive
understanding
Chemical Science,
Год журнала:
2024,
Номер
15(12), С. 4238 - 4274
Опубликована: Янв. 1, 2024
In
response
to
societal
developments
and
the
growing
demand
for
high-energy-density
battery
systems,
alkali
metal
batteries
(AMBs)
have
emerged
as
promising
candidates
next-generation
energy
storage.
Despite
their
high
theoretical
specific
capacity
output
voltage,
AMBs
face
critical
challenges
related
reactivity
with
electrolytes
unstable
interphases.
This
review,
from
perspective
of
electrolytes,
analyzes
AMB
failure
mechanisms,
including
interfacial
side
reactions,
active
materials
loss,
dendrite
growth.
It
then
reviews
recent
advances
in
innovative
electrolyte
molecular
designs,
such
ether,
ester,
sulfone,
sulfonamide,
phosphate,
salt,
aimed
at
overcoming
above-mentioned
challenges.
Finally,
we
propose
current
design
principles
future
directions
that
can
help
precise
design.
