A123 Systems competes in the Li-ion battery space with companies such as Advanced Battery Technologies ( ABAT), Altair Nanotechnologies ( ALTI), China Sun Group ( CSGH), Ener1 ( HEV), Hong Kong Highpower Technology ( HPJ), and Valence Technologies ( VLNC).
A123 Systems, with its lithium-ion technology, also competes with advanced lead-acid battery (lead carbon) producers like Axion Power International ( AXPW.OB), C&D Technologies ( CHP), Enersys ( ENS) and Exide Technologies ( XIDE). Let's not forget the NiMH (nickel metal hydride) battery. ECD Ovonics ( ENER) has licensed its battery technology to every major manufacturer of NiMH batteries, all 35 of them. It's a market projected to be $1.23 billion for HEVs in 2011 compared with a $320 million market for automotive Li-ion batteries.