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Stanford study finds charging Li-ion cells at different rates boosts the lifetimes of EV battery packs

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Stanford University researchers have devised a new way to make lithium-ion battery packs last longer and suffer less deterioration from fast charging. Related research has centered on single lithium-ion cells, which generally don’t lose charge capacity as quickly as full battery packs do. —Simona Onori. Resources.

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Ultrathin transition metal silicate nanosheet cathode material for Li-ion batteries supports reversible two-lithium-ion capacity

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Charge and discharge profile of first and second cycles of Li 2 MnSiO 4 samples measured at 45 °C at 0.02C rate. Researchers from Tohoku University, Japan, have developed novel ultrathin Li 2 MnSiO 4 nanosheets for use as a cathode material in lithium-ion batteries. Credit: ACS, Rangappa et al. Click to enlarge.

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ARPA-E awards $175M to 68 novel clean energy OPEN 2021 projects

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The selected projects—spanning 22 states and coordinated at universities, national laboratories, and private companies—will advance technologies for a wide range of areas, including electric vehicles, offshore wind, storage and nuclear recycling. Cornell University. Stanford University.

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Hawaii study finds vehicle-to-grid discharge detrimental to EV batteries

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Results of a study by a team at the Hawaii Natural Energy Institute, SOEST, University of Hawaii at Manoa, suggest that the additional cycling to discharge vehicle batteries to the power grid in a vehicle-to-grid (V2G) scenario, even at constant power, is detrimental to EV battery cell performance. 2017.05.015.

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Toshiba to supply Li-ion battery energy storage system for frequency regulation project in US

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Toshiba Corporation has received an order to supply a large-scale battery energy storage system (BESS) for a power frequency regulation project in Hamilton, Ohio. Toshiba’s BESS, integrating an array of 6MW-2MWh SCiB lithium-ion batteries, will be delivered in November, and the system is scheduled to start operation in December.

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Vattenfall contracts with BMW for up to 1,000 new 33 kWh Li-ion batteries this year for storage projects in wind farms

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Vattenfall and the BMW Group have signed a contract for the delivery of up to 1,000 lithium-ion batteries this year. Energy storage solutions are an important part of Vattenfall’s strive to power climate smarter living. Energy storage and grid stability are the major topics of the new energy world. Earlier post.).

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Researchers developing DC micro smart grid for charging EV fleets; Li-ion, redox flow batteries and renewables

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A team from Fraunhofer Institute for Industrial Engineering IAO, together with Daimler AG and the Institute for Human Factors and Technology Management at the University of Stuttgart, is developing both the charging infrastructure and the energy management systems required to manage large fleets of EVs in a project called charge@work.

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