The Importance of Nanotechnology in Developing Better Energy Storage Materials for Automotive Transport
- The Importance of Nanotechnology in Developing Better Energy Storage Materials for Automotive Transport
- Nazar, L. F.; 오시형
- battery; nano; automotive; transport
- Issue Date
- SAE Technical Paper
- VOL 2008-01-0689, 1-9
- Traditional electrode materials for lithium-ion
storage cells are typically crystalline layered structures
such as metal oxides, and graphitic carbons. These
materials power billions of portable electronic devices in
today’s society. The needs of high-capacity storage
devices capable of powering hybrid electric vehicles
(HEV”s) or their plug-in versions (PHEV’s) are more
demanding, however, with respect to safety, cost, and
power requirements. Recently, nanostructured solid
state materials, which are comprised of two more
compositional or structural phases, are considered very
promising in filling this role. These are exploited in
negative electrode design, where the intimate mix of
components at the nanoscale enhances reversibility,
and capacity. It is particularly critical for new cathode
materials that function on the basis of intergrowth
structures; and poorly conductive materials where
limitations to electron or ion transport must be overcome
by judicious design of nanostructured composites.
Moreover, by definition, the interphase between the
electrode and electrolyte forms a complex nanostructure
that must be tailored to optimize transport properties.
The research trends and future prospects in these areas
are reviewed and discussed.
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