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Li-Air battery

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Technology Description

In this concept the oxygen in the air would act as the cathode and lithium as the anode. This combination of materials offers a theoretical energy density of the same order of magnitude as liquid fuels. However, there are several significant technical barriers that prevent any design from reaching such a high density. While this technology is very promising in theory, its practical feasibility and viable performance are still to be demonstrated. Battery reuse (e.g. second-life applications, for instance for energy storage) and/or recycling technologies and policies will be essential to ensure that batteries contribute to sustainability goals.

Relevance for Net Zero

Beyond lithium-ion, technologies that have higher energy density and lower material costs are needed to electrify vehicles that operate in energy- and power-intensive and long-distance operations, including aircrafts, ships and heavy-duty (e.g. drayage, regional and long-haul) trucks.

Key Countries

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