On July 30th, 2013, Professor Jeff Dahn of Dalhousie University delivered a lecture entitled "Why do Li-ion batteries die and can they be immortal?".


Li-ion batteries for tablets and phones last several years. Li-ion batteries for electrified vehicles and grid energy storage need to last decades. I will explain why Li-ion batteries die and, using examples from our recent research, how changes to their chemistry can greatly improve their lifetime. It is my opinion that Li-ion batteries can eventually be made to last for 20, 30 or even 50 years.

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