New, low-cost batteries designed to last for a million miles of use in electric vehicles? Tesla Chief Executive Elon Musk says the public can expect just that from the Model 3 sedan, expected to debut in China late this year or early next. 

According to Reuters, the new “million mile” battery—which relies on low-cobalt and cobalt-free battery chemistries, among others—was jointly developed with China’s Contemporary Amperex Technology Ltd (CATL). Reuter’s sources say CATL plan on supplying Tesla with an improved long-life nickel-manganese-cobalt (NMC) battery whose cathode is 50% nickel and only 20% cobalt sometime next year. (more…)

Jeff Dahn

More efficient, longer-lasting batteries are needed to ensure the future of the electric vehicle market. Thanks to Jeff R. Dahn and his Dalhousie University research team, a “million-mile battery” may soon be a reality. Dahn is Tesla’s battery research partner. In “A Wide Range of Testing Results on an Excellent Lithium-Ion Cell Chemistry to be used as Benchmarks for New Battery Technologies,” Dahn describes a new Li-ion battery cell with a single crystal NMC cathode and an advanced electrolyte. The new battery should power an electric vehicle for one million miles and last at least 20 years in grid energy storage—making Tesla’s electric-powered semi-autonomous driving cars and trucks viable.

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ECS Student Chapter Munich hosted its first-ever symposium on February 15, 2016, featuring invited talks by Professor Jeff Dahn and Professor Thomas J. Schmidt, a poster session, and numerous opportunities for discussion and networking.

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The electric car industry is on the rise, but battery performance for these vehicles is still not where it needs to be to implement wide-scale usage. To address this issue, researchers from Dalhousie University have produced a ternary blend of electrolyte additives to improve the performance of the li-ion cell.

An open access paper recently published in the Journal of The Electrochemical Society (JES) details a novel development in electrolyte additives that, once applied to the li-ion cell, demonstrate a very high charge-discharge capacity.

The team began their study by investigating the performance of NMC pouch cells and electrolytes with various sulfur or phosphorus electrolyte additives.

They concluded that the new additive will improve the life cycle performance of the li-ion battery, as well as improve upon its safety.

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