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MIT research team finds most efficient oxygen evolution reaction catalyst yet; potential for hydrogen production and rechargeable metal-air batteries

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John Goodenough from the University of Texas as Austin, has found one of the most effective catalysts yet discovered for the oxygen evolution reaction (OER) for use in water-splitting to produce hydrogen or in rechargeable metal-air batteries. rechargeable metal-air batteries (MxO 2 ? H 2 + ½O 2 , and. Mx + O 2 ).

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New Lithium rechargeable semi-solid flow cell offers energy densities an order of magnitude greater than previous flow batteries; possible applications in transportation and grid-scale storage

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Yet-Ming Chiang (co-founder of A123 Systems), report on their development of a new energy storage concept—a semi-solid flow cell (SSFC) combining the high energy density of rechargeable batteries with the flexible and scalable architecture of fuel cells and flow batteries—in a paper published in the journal Advanced Energy Materials.

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Graphene-sulfur composite as stable high energy capacity cathodes for Li-ion batteries

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In a paper published in the ACS journal Nano Letters , they suggest that this material represents a promising cathode material for rechargeable Li-ion batteries with high energy density. Sulfur also possesses other advantages such as low cost and environmental benignity. Earlier post.) Nevertheless, Wang et al.

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Graphene oxide-sulfur (GO-S) nanocomposite cathodes for high-capacity, stable cycling lithium sulfur batteries

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This approach enabled them to obtain a uniform and thin (around tens of nanometers) sulfur coating on graphene oxide sheets and address some of the challenges retarding the commercialization of Li/S batteries. However, there are a number of challenges in Li/S batteries, Ji et al. Earlier post.).

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PSA evaluating PowerGenix NiZn batteries for start-stop systems

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PowerGenix, the developer of high-performance, automotive Nickel-Zinc (NiZn) batteries, has entered into an innovation contract with PSA Peugeot Citroën Automobiles under which PSA will conduct a comprehensive evaluation of the use of PowerGenix’s NiZn batteries as a replacement for lead-acid in stop-start vehicles. Earlier post.).

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Bio-inspired graphene hierarchical structures as high-performance anode materials for Li-ion batteries

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A team from Nanyang Technological University (China) has developed a scalable self-assembly strategy to create bio-inspired honeycomb-like hierarchical structures composed of functionalized graphene sheets to work as anodes in lithium-ion batteries. —Yin et al. ACS Nano Article ASAP doi: 10.1021/nn2001728.

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Faradion demonstrates proof-of-concept sodium-ion electric bike

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E-bike powered by Faradion prototype Na-ion battery pack. For the proof-of-concept, the cells were manufactured to be larger than necessary to avoid unnecessary costs and lengthy manufacturing processes at this early stage. Sodium-ion intercalation batteries—i.e., Sodium-ion intercalation batteries—i.e.,

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