For the promise of approaches like "E-flex" to be realized, though, America is going to have to have a reliable and large-scale source of lithium-ion batteries such vehicles require.
As part of their investigation, Japanese and U.S. experts want to determine if an internal battery failure, or defective lithium-ion cell, was the ignition source in either of the two incidents.
Evidence revealed thus far supports the fact that the ignition source was not the Lithium-ion battery pack, new technology components or unique exhaust routing.
For one, it's not clear how long the two-cell lithium ion battery will last, and pricing or availability are missing from the brochure (at the source link).