Abstract
Li-ion batteries have improved significantly in terms of performance and cost since their introduction in the early 1990’s. Even so, the search for lighter and more compact batteries has continue unabated with a recent focus on lithium metal based chemistries and solid-state batteries. PolyPlus introduced the protected lithium electrode (PLE) in 2004 enabling the development of aqueous Li metal batteries including Li-Water, Li-Air, and Li-(aqueous sulfur). Li-water batteries are in the process of being commercialized now with energy densities of 1600 Wh/kg and 1100 Wh/l. PLEs are enabling for use with highly concentrated aqueous polysulfides for rechargeable Li/S batteries. PolyPlus is also pursuing the use of highly conductive sulfide glass electrolytes to build fully solid-state lithium metal batteries; in this case sulfide glass is drawn down to ultra-thin ribbons (≤ 20 µm) before incorporation into solid-state cells. Battery performance and the complexity (and cost) to manufacture are both critical to the ultimate success of any new battery technology under consideration. These topics will be covered in the presentation. Figure 1
Published Version
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