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World on cusp of EV tipping point, says Tesla CTO

SAN JOSE, Calif.—Slow, steady improvement in battery technology over the past several decades as brought the world to the cusp of a tipping point that will lead to greater adoption of electric vehicles (EV) that could help curb civilization’s reliance on fossil fuels, according to JB Straubel, chief technology and co-founder of Tesla Motors Inc.

Delivering a keynote address at the DESIGN West event here Wednesday (March 28), Straubel said that while critics often point out that there is no equivalent to Moore’s Law in terms of battery technology improvement, battery technology has slowly improved over many decades, resulting in an average of 7 to 8 percent per year improvement in energy density.

Straubel said battery technology has improved to the point that EVs can offer a driving range of 200 miles or more under normal driving conditions on a full charge. Batteries will continue to improve to offer higher ranges, better performance and potentially lower costs, he said. “Cost is still the most important challenge for batteries,” Straubel said.


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