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Chalmers team develops graphite-like anode for Na-ion batteries; Janus graphene

Green Car Congress

Researchers at Chalmers University of Technology, Sweden, have developed a nanometric graphite-like anode for sodium ion (Na + storage), formed by stacked graphene sheets functionalized only on one side, termed Janus graphene. The estimated sodium storage up to C 6.9 100 to 150 mA h g ? 100 to 150 mA h g ?1 —Sun et al.

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OSU smart membrane could enable new category of high-energy, high-power energy storage for EVs

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A team at the Ohio State University has developed a membrane that regulates bi-directional ion transport across it as a function of its redox state and that could be used as a programmable smart membrane separator in future supercapacitors and redox flow batteries. plugin EVs to Tesla’s 85 kWh battery pack).

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Fire risks associated with li-ion batteries & safety

Electric Vehicles India

Fire risks associated with li-ion batteries & safety. The demand for lithium-ion battery-powered road vehicles continues to increase around the world day by day. As the technological advances in energy storage systems, specifically those that are part of the lithium-ion family.

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24M emerges from stealth mode with new semi-solid Li-ion cell; <$100/kWh by 2020

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Stealth-mode battery start-up 24M has introduced its new semi-solid lithium-ion cell. Together, our inventions achieve what lithium-ion has yet to do—meet the ultra-low cost targets of the grid and transportation industries. The lithium-ion battery is a brilliant, enabling technology, but its economics are flawed.

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Ener1 To Supply Li-ion Packs to Hyundai Heavy for Electric Buses; Complete Turnkey Solutions Agreement with Toro

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Ener1 has signed up two new customers for its Li-ion batteries: Hyundai Heavy Industries (HHI) and Toro. Hyundai Heavy Industries in Korea will receive Li-ion battery packs for electric buses; the packs are similar configurations as packs currently in operation in California with AC Transit. Grid Energy Storage.

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Paul Scherrer Institute and Toyota RD team finds tiny memory effect in Li-ion batteries; implications for vehicle battery management systems

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Up until now, Li-ion batteries have been considered to exhibit no “memory effect”—a deviation in the voltage of the battery resulting from repeated charging after being only partially discharged that can limit the usability of the stored energy as well as the ability to determine the state of charge of the battery reliably.

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Li-Ion Battery Researchers Work To Improve Precision Measurements of Charging, Estimations of Cycle Life; Highlight Need For Further Order of Magnitude Improvement In Accuracy

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Researchers at Dalhousie University in Halifax, Nova Scotia have called for new tools that can more accurately measure an electrochemical cell’s Coulombic efficiency (CE) when evaluating cycle life of lithium-ion cells as well as other battery chemistries.

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