solar cells

MIT researchers have proposed a new system that uses recycled car battery materials to make low-cost photovoltaic solar cells. Lead from old car batteries is currently being recycled for new batteries, but the production of new lead-acid batteries will likely decline due to new battery technologies, leaving a surplus of lead.

University of Sheffield scientists developed a way to produce perovskite solar cells using a spray-paint process. This process could lead to a reduction in the cost of solar electricity.