Abstract
Since its birth nearly three decades ago, lithium-ion battery (LIB) has changed all aspects of our life, from portable electronics, electric vehicles (EVs) to large-scale energy storage systems and the emerging electric flight applications. Currently, the bottleneck of the energy density of LIB is set by the intercalation cathode materials, which has been a significant push to develop high energy density and low-cost cathodes in response to rapidly expanding market. In this talk, I will focus on the identification of key failure modes and development of mitigation strategies for facilitating the future application of battery technologies. I will present some insights into the failure mechanism of battery materials that differ from the existing paradigms. Further, I will discuss how we can utilize rational composition and structure design to improve energy density, battery life without compromising safety, speed up battery charging, and reduce the cost of batteries.
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