08.09.14 PolyPlus, a startup based on technologies developed at Berkeley Lab, continues to make progress on rechargeable lithium-sulfur and lithium-air battery solutions despite resisting funding offers from venture capital sources. The 27-employee company, awarded $4.5M from ARPA-E in 2013, has outlasted notable competitors and forged relationships with key industry players such as automakers and the U. S. military. For the complete update on PolyPlus technologies, go here.