The Coretec Group, Inc. is a technology-based solutions company. The company is headquartered in Ann Arbor, Michigan. The company went IPO on 2003-02-13. This program is called Endurion. Through its micron and nanoparticle approach, Endurion is engaged in loading silicon into the battery anode. The company uses silicon-based nanoparticles to mitigate the swelling and pulverization issues that are common in early iterations of silicon anodes. Additionally, Endurion nanoparticles are being engineered with an inherent SEI layer that allows better conduction of lithium-ions across the SEI layer, leading to better cycle life. Endurion is being designed to increase energy density in batteries and allow for endurance, enhanced performance, and larger capacity in burgeoning applications, such as electric vehicles, military technologies, mobile devices, and space exploration. The company is also exploring ways to use its intellectual property to develop optical plastics to advance development of its CSpace 3D imaging chamber.