A car battery that won't need replacement for a million miles or 20 years, whichever comes first, might be coming to Tesla.
Last year, a team from the Dalhousie University in Halifax, Canada, who do research for Tesla, said in a paper that they had tested lithium-ion battery cell chemistry expected to be able to power electric vehicles (EVs) for more than 1 million miles and last at least two decades in grid energy storage.
Jeff Dahn and his research team presented testing results of “excellent moderate-energy-density lithium-ion pouch cell chemistry” that should be able to power an electric vehicle for over 1.6 million kilometers (1 million miles) and last at least two decades in grid energy storage.
The researchers from Dalhousie University have an exclusive agreement with Tesla, and they reported that they had designed battery cells with higher energy density without using the solid-state electrolyte that many believe is a necessary condition for enhanced density.I don't drive much - for all the appropriate reasons - but it would take me a mildly unrealistic 285 years to log a million miles. A million miles over 20 years, that's 50,000 miles every year. That sounds only slightly more plausible.
Of course the automotive application is really about Musk's strategy to transform Tesla into an energy company.