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MIT team develops data-driven safety envelope for lithium-ion batteries for EVs

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Researchers at MIT, with a colleague from Tsinghua University, have developed a safety envelope for Li-ion batteries in electric vehicles by using a high accuracy finite element model of a pouch cell to produce more than 2,500 simulations and subsequently analyzing the data with Machine Learning (ML) algorithms. —Li et al.

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Renesas Electronics introduces 4th-generation Li-ion battery management IC

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Renesas Electronics Corporation announced its fourth-generation lithium-ion (Li-ion) battery management IC that offers unmatched lifetime accuracy. Together, we designed and integrated a low-voltage Li-ion battery management system featuring ISL78714 ICs and RH850 microcontrollers in Mahindra Racing electric race cars.

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

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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. Na is comparable to graphite for standard lithium ion batteries. 100 to 150 mA h g ? —Sun et al.

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thyssenkrupp and partners launch collaborative project EffiForm to lower Li-ion battery cost through improved formation cycling

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The high cost of battery cells continues to be a major stumbling block to improving the cost-efficiency and popularity of e-mobility. Roughly a third of battery production costs are currently accounted for by the final step in the manufacturing process—formation cycling. —Wood et al.

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Researchers in Belgium develop new class of solid composite electrolytes for Li-ion batteries: Eutectogels

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Researchers at Hasselt University in Belgium are proposing a new class of solid composite electrolytes (SCEs) for Li-ion batteries: deep eutectic solvent (DES)–silica composites. The DES-based gel electrolytes—to which the team refers as eutectogels (ETGs)—are characterized by high ionic conductivity (1.46

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Stanford, CMU, MIT team reviews challenges to practical implementation of solid-state Li-ion batteries

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Solid-state lithium-ion batteries, with higher volumetric energy densities than currently available lithium-ion batteries, offer a number of conceptual advantages including improved packaging efficiency; improved safety; and long cycle life. —Kermana et al.

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