Reports say Sony will begin by negotiating lithium-ion battery contracts with automakers and is expected to initially manufacture all cells at an undisclosed facility located somewhere in Japan. Word is that Sony may consider producing li-ion batteries overseas at some later date.
Supposedly, Sony' first batch of prototype automotive lithium-ion batteries boast long life and the ability to be repeatedly charged without losing a significant amount of energy. For now, that's all we know of Sony's automotive li-ion efforts.
[Source: Gas 2.0]