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Researchers directly visualize formation and disappearance of Li-O2 reaction products; insights to support development of rechargeable lithium-air batteries

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air (Li-O 2 ) battery represents a conceptually attractive energy storage device for electric vehicle applications due to its high theoretical energy storage capacity ( earlier post ); however, among the obstacles to commercialization is a lack of fundamental understanding of the reactions involved. Click to enlarge.

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OSU team demonstrates concept of potassium-air battery as alternative to lithium-air systems

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V), which renders the system with a low round-trip energy efficiency around 60%. O 2 battery can can provide an exceptional round-trip energy efficiency of >95%.As ar, Anna Katharina Dürr, Arnd Garsuch, Jürgen Janek & Philipp Adelhelm (2012) A rechargeable room-temperature sodium superoxide (NaO 2 ) battery. oxygen batteries.

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Research team demonstrates Li-air battery capable of long cycle life

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A team from Hanyang University (Korea) and University of Rome Sapienza (Italy) have demonstrated a lithiumair battery capable of operating over many cycles with capacity and rate values as high as 5,000 mAh g carbon ?1 1 and 3 A g carbon ?1 1 , respectively. Nature Chemistry doi: 10.1038/nchem.1376 1376 10.1038/nchem.1376.

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3 winners of DOE’s “America’s Next Top Energy Innovator” Challenge: hydrogen-assisted lean-burn engines, graphene for Li-air and -sulfur batteries, and titanium process

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US Energy Secretary Steven Chu announced three winning startup companies—based on a public vote and an expert review—out of the 14 participating in the US Department of Energy (DOE) “ America’s Next Top Energy Innovator ” challenge. Earlier post.).

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DOE announces $60M to accelerate advanced vehicle technologies research

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The US Department of Energy (DOE) Vehicle Technologies Office (VTO) announced up to $60 million in new and innovative advanced vehicle technologies research. ( DOE is working to lower the cost of the power electronics and motors in an EV to $7/kW by 2022 from $30/kW in 2012. Lithium-sulfur and lithium-air battery cell development.

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BMW and Toyota expand collaboration with work on fuel cell system, sports vehicle, light-weight technology and Li-air battery

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These agreements follow a memorandum of understanding signed in June 2012. The companies also today signed a binding agreement to commence collaborative research on lithium-air batteries. This agreement marks the second phase of collaborative research into next-generation lithium-ion battery cells that commenced in March 2012.

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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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Although the resulting battery has lower voltage and capacity than a conventional Li-air battery, it offers enhanced safety and an energy density higher than Li-ion batteries. V, the theoretical energy density of the complete (anode and cathode) Li x Si?O Earlier post.) —Hassoun et al.

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