What's new with hybrid electric vehicles

This article has two main parts. The first part provides examples of recent advancements with advanced battery technologies: nickel metal hydride (NiMH), lithium ion (Li ion), lithium metal polymer (Li MP), sodium metal chloride (Zebra) and nickel zinc (NiZn). The next part addresses, in overview form, a selection of significant hybrid electric vehicle (HEV) designs, concepts, and prototypes from Japan, France, and the United States.