Complex sentence: Valence Technology, Inc. sells various types of phosphate-based lithium-ion rechargeable batteries, including N-Charge and U-Charge, and has recently introduced a new type called Epoch.
Split into simpler sentences: Valence Technology, Inc. engages in the commercialization of phosphate-based lithium-ion rechargeable battery technology. The company offers various technology-based power systems, including N-Charge and U-Charge, and has recently introduced a new power system called Epoch.