Ali Firouzi1
Cuberg1
Cuberg designs and manufactures high energy density, liquid electrolyte-based, lithium metal battery systems for an array of electric aviation and high performance automotive applications. The challenges and phenomena associated with reversibly cycling a lithium metal anode are numerous: the consumption electrolyte in side-reactions, the formation of thick and resistive solid-electrolyte interphases, and the formation of mossy, high surface area lithium deposits. The emergence of these phenomena and their role in limiting cycle life performance are also well-established in literature, but mostly limited to simple constant current charge and discharge profiles. However, when evaluating the cycle life performance of lithium metal pouch cells during realistic aviation flight missions or high-performance automotive drive profiles, these degradation phenomena can be considerably more subtle and complex. In this talk, we will discuss some of the challenges we observe, considerations we have, and design approaches we take when constructing lithium metal batteries for these realistic and high-performance applications.