Energizer have released some great news about thier AA & AAA Ulitmate Lithium Batteries:

"Energizer® Application Support is proud to announce Energizer® Ultimate Lithium™ AA and AAA batteries are now certified as a component in intrinsic safety apparatus  according to Directive 94/9/EC ATEX.

This means that the world’s longest lasting AA and AAA battery in high tech devices can readily be used in  these applications"

Click to read the official release

 Click to view the Energizer products