When a LiFePO4 nanoparticle is held at 50% state of charge, coherency strain leads to the formation of {101} phase boundaries. Phase-field simulation of a 500x500nm particle.
Battery Modeling Group
At small currents, ordered stripes appear in a 100x100nm particle due to coherency strain.
At moderate current (I/I0=.01), phase separation is observed but with less ordering than at slow current.
Phase separation is suppressed as discharge rate is increased (I/I0=.03) and the critical current is approached. There is not enough time for complete phase-separation, and a quasi-solid solution forms.
When a LiFePO4 nanoparticle is held at 50% state of charge and cracks and dislocations cause a loss coherency in the [001] direction, a {100} stripe morphology is formed. Phase-field simulation of a 500x500nm particle.
The MIT Glass Lab is administratively co-sponsored by the Materials Processing Center and the Department of Materials Science and Engineering.
Learning the difference between kinetic and static friction.
Jesper Juul offered this lecture on Nov. 28, 2006. Juul is a video game theorist and assistant professor in video game theory and design at the Centre for Computer Game Research Copenhagen, where he also earned his PhD.
In a visit to the MIT campus on May 14, 2013, British Prime Minister David Cameron met with President L. Rafael Reif and Media Lab director Joichi Ito, faculty members and students, and a group of young MIT entrepreneurs.
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