Dr. Yi Cui, a winner of the 2004 MIT Technology Review World Top 100 Young Innovator Award (among other notable awards), and Assistant Professor in the Department of Materials Science and Engineering at Stanford University, was a distinguished presenter at the CAFE Foundation’s Third Annual Electric Aircraft Symposium last April. He talked about the structure and manufacturing of lithium-ion cells, and the material limitations placed on the performance of those cells. His breakthrough in using nanowires in the cathode promises an 80-percent gain in the cell’s charge-holding ability, equivalent to ten years of the normal cell improvement of eight percent per year. The good news was somewhat of a letdown for many, who were hoping to hear of a total 10X performance improvement for the entire battery. Dr. Cui advised attendees that the introduction of similar improvements in battery anodes would be required before that quantum leap in performance could be achieved. In the meantime, as reported in our entry, …
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