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Rechargeable membrane-less hydrogen bromine flow battery shows high power density

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MIT researchers have engineered a new rechargeable, membrane-less hydrogen bromine laminar flow battery with high power density. In such a device, two liquids are pumped through a channel, undergoing electrochemical reactions between two electrodes to store or release energy. Credit: Braff et al. Click to enlarge.

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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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During discharge, Li ions meet with reduced oxygen on the surface of the Li x V 2 O 5 electrode forming Li 2 O 2 , which is decomposed upon recharge. The rechargeable Li?air This is in contrast to Li 2 O 2 particles having sizes in the range of 100 to 1000 nm formed in Li-O 2 batteries with aprotic electrolytes.

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Contour Energy Systems Licenses MIT Carbon Nanotube Technology for Li-ion Battery Electrodes

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Contour Energy Systems, Inc. has acquired a carbon nanotube technology that can significantly improve the power capability of lithium-ion batteries, through an exclusive technology licensing agreement with Massachusetts Institute of Technology (MIT). Simon Jones, director of research and development at Contour Energy Systems.

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A123 Venture Technologies to collaborate with SolidEnergy on safer, high-energy battery chemistry; potentially up to ~800 Wh/kg

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A123 Venture Technologies, a Massachusetts-based technology incubator, will collaborate with MIT startup SolidEnergy. This strategic partnership leverages SolidEnergy’s solid electrolyte technology which enables the safe and practical use of lithium metal anodes for high energy density batteries in a wide range of applications.

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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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The SSFC could enable new models such as transportation ‘fuels’ tuned for power versus range, or cold versus warm climates, with flexible refueling and recycling options. Even the highest energy density lithium ion cells currently available, e.g., 2.8–2.9 2011), Semi-Solid Lithium Rechargeable Flow Battery. Earlier post.).

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New machine learning method from Stanford, with Toyota researchers, could accelerate battery development for EVs

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Here we develop and demonstrate a machine learning methodology to efficiently optimize a parameter space specifying the current and voltage profiles of six-step, ten-minute fast-charging protocols for maximizing battery cycle life, which can alleviate range anxiety for electric-vehicle users. Attia et al.

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Stretchable Batteries Make Flexible Electronics More So

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The stretchable battery is gaining momentum in the electronics industry, where it might one day serve as an energy storage medium in fitness trackers, wearable electronics, and even smart clothing. The battery is not rechargeable, and its applications include medical patches and hearing aids.