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Researchers show feasibility of lithium-metal-free anode for Li-air battery; addressing one of three main barriers to Li-air battery development

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The elimination of the lithium metal anode addresses one of the major issues affecting the development of the lithium-air battery: the safety hazard of the anode. “ The third issue has not even been considered since, to our knowledge, all of the Li-air works so far reported refer to batteries based on lithium metal as the anode.

Li-ion 306
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New nanolithia cathodes may address technical drawbacks of Li-air batteries; scalable, cheap and safer Li-air battery system

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Conventional lithium-air batteries draw in oxygen from the outside air to drive a chemical reaction with the battery’s lithium during the discharging cycle, and this oxygen is then released again to the atmosphere during the reverse reaction in the charging cycle. The researchers refer to these particles as nanolithia.

Cheap 150
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Jülich, ORNL researchers advance high energy density iron-air batteries

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When it comes to volumetric energy density, iron–air batteries could perform even better with 9,700 Wh/l—almost five times higher than today’s lithium-ion batteries (2,000 Wh/l).

Energy 170
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Team at Naval Research Laboratory suggests design direction for structural batteries

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Cell-level specific-energy values versus corresponding elastic moduli of reported structural batteries, numbered by their references. The researchers’ analysis also suggests that further found that ext-generation structural batteries should look to energy-dense aluminum-air and zinc-air batteries. Hopkins et al.

Zinc Air 243
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Technical review outlines challenges for both batteries and fuel cells as basis for electric vehicles

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Some of their main points, backed up by references to the literature, with respect to major technology options include: Despite the enormous amount of research and development efforts put into Li-ion batteries, specific energies significantly larger than 0.25 kWh name-plate /kg battery-system are not yet on the horizon.