Lithium Iron Phosphate (LiFePO4) Start up Batteries
According to battery makers at the 2009 Automotive Research Seminar, Lithium will be the material of choice for the next two decades because you can't go any higher on the atomic table except for hydrogen. If Lithium is going to stay around for awhile, battery developers must find ways to pack more power into each cell.
The traditional lead-acid batteries are a characteristic hazardous waste because of the lead and acid content. The corrosively and heavy metal content (lead) of lead-acid batteries may endanger human health and the environment. Acid spillage from such batteries has caused many disposal sites to be contaminated with lead. Spent lead-acid batteries have been banned from municipal solid waste landfills and incinerators in Most of developed countries such as USA, Canada, EU, Australia, Japan and New Zealand since late 20th century.