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IIT, Argonne team designs Li2O-based Li-air battery with solid electrolyte; four-electron reaction for higher energy density

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Researchers at the Illinois Institute of Technology (IIT) and US Department of Energy’s (DOE) Argonne National Laboratory have developed a lithium-air battery with a solid electrolyte. The four-electron reaction is enabled by a mixed ion–electron-conducting discharge product and its interface with air.

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MIT team synthesizes all carbon nanofiber electrodes for high-energy rechargeable Li-air batteries

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Gravimetric Ragone plot comparing energy and power characteristics of CNF electrodes based on the pristine and discharged electrode weight with that of LiCoO 2. This translates to an energy enhancement ~4 times greater than the state-of-the-art lithium intercalation compounds such as LiCoO 2 (~600 W h kg electrode -1 , the researchers said.

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AIST team developing Li-air capacitor-battery targeted for EVs

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A team from Japan’s AIST (National Institute of Advanced Industrial Science and Technology) reports on the development of a “lithiumair capacitor–battery based on a hybrid electrolyte” in a paper in the RSC journal Energy & Environmental Science. Energy Environ. Earlier post.). Earlier post.).

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Argonne-led team demonstrates Li-air battery based on lithium superoxide; up to 5x Li-ion energy density

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Researchers from Argonne National Laboratory, with colleagues in the US and Korea, have demonstrated a lithium-oxygen battery based on lithium superoxide (LiO 2 ). Open systems require the consistent intake of extra oxygen from the environment, while closed systems do not—making them safer and more efficient.

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PNNL team uncovers reaction mechanisms of Li-air batteries; how batteries blow bubbles

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Lithium-air batteries are looked to by many as a very high-energy density next-generation energy storage solution for electric vehicles. However, the technology has several holdups, including losing energy as it stores and releases its charge.The reaction mechanisms are, in general, not well understood. 2017.27.

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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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Drawing a Li-air cathode with a pencil

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Scientists at the National Institute of Advanced Industrial Science and Technology in Japan have made an electrode for a lithium-air battery using a pencil. Haoshen Zhou and Yonggang Wang designed a battery in which the lithium is encapsulated by an organic electrolyte topped with a ceramic protection layer. Energy Environ.

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