When 3:30 PM - 5:00 PM Feb 22, 2008
Where 1670 CSE
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Yet-Ming Chiang, MIT


Impact of Materials Innovations on Rechargeable Battery Technology for the Coming Electric Vehicle Revolution

Rechargeable lithium batteries are now widely considered to be a critical and enabling technology for the widespread implementation of electrified vehicles ranging from hybrid electric (HEVs) to plug-in hybrid electric (PHEVs) to all-electric vehicles (EVs). Materials advances driven by clear technological and societal needs are responsible for the rapid evolution from batteries for portable electronics to those with the power, safety, life, and cost to satisfy large systems. This talk will give a status report on real-world applications, and then focus on the underlying materials science. In our work on lithium transition metal olivine compounds which underpin much of the new battery technology, the understanding of phase stability and phase transformations under large electrochemical driving forces, and the associated mechanical as well as electrochemical response, has been key to understanding materials behavior and improving performance.

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