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Five Cool Tech Demos From the ARPA-E Summit

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Gas Li-ion batteries thwart extreme cold South 8 Technologies demonstrates the cold tolerance of its Li-ion battery by burying it in ice at the 2024 ARPA-E Energy Innovation Summit. That’s a big improvement on conventional Li-ion batteries, which start to degrade when temps reach 0 °C and shut down at about –20 °C.

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Volkswagen unveils mid-size SUV plug-in diesel-electric hybrid concept at Detroit Show

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Powertrain of the CrossBlue SUV PHEV concept. Volkswagen unveiled the CrossBlue SUV concept at the North American International Auto Show. The CrossBlue concept. kWh Li-ion battery mounted in the center tunnel. A DC/DC converter supplies the vehicle’s electrical system with the 12V power it needs.

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New PNNL zinc-polyiodide redox flow battery offers 2x energy density of next-best system; potential for mobile applications

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Researchers at Pacific Northwest National Laboratory (PNNL) have developed a new zinc-polyiodide redox flow battery offering more than two times the energy density of the next-best flow battery used to store renewable energy and support the power grid. Source: Li et al. Click to enlarge. Flow batteries.

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ARPA-E awarding $39M to 16 projects to grow the domestic critical minerals supply chain

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The University of Texas at Arlington will develop acoustic stimulation and electrolytic proton production to produce lithium (Li) and nickel (Ni) from CO 2 -reactive minerals and rocks that contain calcium (Ca) and magnesium (Mg), while sequestering CO 2 in the form of carbonate solids. Colorado School of Mines. An estimated 2.2

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OSU hybrid “solar battery” uses photo-assisted charging to improve performance of Li-air batteries; “negative overpotential”

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Researchers at The Ohio State University have developed a novel strategy to improve the efficiency and performance of non-aqueous lithium-oxygen (Li-air) batteries. O 2 systems require an open system to obtain oxygen from the air; Li metal must also be used as the metal electrode to provide the lithium source. Earlier post.).

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Quick drive of the Passat HyMotion hydrogen fuel cell hybrid

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The concept car has high-voltage 1.1 kWh lithium-ion battery pack (from the Jetta Hybrid), which stores the kinetic energy recovered from regenerative braking; assists in the starting phase of the fuel cell; and adds a dynamic boost to the maximum acceleration of the Golf SportWagen. Top: Drivetrain. Click to enlarge.

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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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An international team from MIT, Argonne National Laboratory and Peking University has demonstrated a lab-scale proof-of-concept of a new type of cathode for Li-air batteries that could overcome the current drawbacks to the technology, including a high potential gap (>1.2 V) V versus Li/Li +. Courtesy of the researchers.

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