Lithium aluminum alloy anodes in Li-ion rechargeable batteries: Past developments, recent progress, and future prospects (original) (raw)

Progress in Energy

Abstract

Aluminum metal has long been known to function as an anode in lithium-ion batteries owing to its capacity, low potential, and effective suppression of dendrite growth. However, seemingly intrinsic degradation during cycling has made it less attractive throughout the years compared to graphitic carbon, silicon-blends, and more recently lithium metal itself. Nevertheless, with the recent unprecedented growth of the lithium-ion battery industry, this review aims to revisit aluminum as an anode material, particularly in light of important advancements in understanding the electrochemical lithium-aluminum system, as well as the growth of activity in solid-state batteries where cell designs may conveniently mitigate problems found in traditional liquid cells. Furthermore, this review culminates by highlighting several non-trivial points including: 1) Prelithiatied aluminum anodes, with β-LiAl serving as an intercalation host, can be effectively immortal, depending on formation and cycling...

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