Tag Archives: Yuan Yang

MNA Technology Desk: Researchers have developed a new method to increase the energy density of lithium (Li-ion) batteries used in smartphones, tablets and other portable electronics—a discovery that can improve their performance by 10-30 per cent. Yuan Yang, assistant professor of materials science and engineering at Columbia Engineering, built a tri-layer structure that is stable even in ambient air, which makes the battery both long lasting and cheaper to manufacture. When lithium batteries are charged for the first time, they lose anywhere from 5-20 per cent energy in that first cycle. “Through our design, we’ve been able to gain back ...

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