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Argonne researchers identify another reason why fast-charging degrades the performance of Li-ion batteries

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A new study by researchers from Argonne National Laboratory and the University of Illinois Urbana-Champaign seeking to identify the reasons that cause the performance of fast-charged lithium-ion batteries to degrade in EVs has found interesting chemical behavior of the anode as the battery is charged and discharged.

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European team discovers new top-performing solid-state fast ionic conductor for Li-ion batteries

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Solid-state materials with high ionic conduction are necessary for many technologies, including all-solid-state lithium (Li)-ion batteries. The move to solid state batteries offers a number of advantages, including safety, but lithium ions in solids are less mobile than in liquids. . … —Di Stefano et al. 2019.07.001.

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Amprius Technologies awarded US Army contract to develop 100% silicon anode Li-ion batteries for UAS applications

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Amprius Technologies, a producer of 100% silicon anodes for Li-ion batteries ( earlier post ), announced a contract award with the US Army’s Rapid Capabilities and Critical Technologies Office (RCCTO). Amprius is the only company to offer a 100% silicon anode Li-Ion battery commercially.

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KIT coordinating EPIC project; accelerated drying of electrodes for Li-ion batteries

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The new EPIC project coordinated by Karlsruhe Institute of Technology (KIT) is aimed at accelerating the drying of high-quality electrodes for lithium-ion batteries, increasing the energy efficiency of this process and, hence, reducing the cost of production. EPIC is funded by the Federal Ministry of Research with €3 million.

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Researchers in China, US develop binder-free high-silicon-content flexible anode for Li-ion batteries

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A team from Zhejiang A&F University, Huazhong University of Science and Technology (HUST), and Stanford University have developed a binder-free, flexible, and free-standing electrode comprising an unprecedented 92% silicon content for Li-ion batteries. 1 (Li 15 Si 4 ). —Wang et al.

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US Army, Brown Univ. partner to study SEI on silicon anodes to extend Li-ion battery life

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The Army is working to replace all alkaline and nickel metal hydride field batteries with Li-ion batteries. “ The Army is developing hybrid vehicles for use on the battlefield, and that means they will also use Li-ion batteries. We want to push the voltage of Li-ion batteries higher. ”.

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New high-voltage electrolyte additive supports high energy density and stability in LMNC Li-ion battery; 2x energy density over LiCoO2

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A team led by researchers at Chungnam National University (S. Korea) has developed a novel high-voltage electrolyte additive, di-(2,2,2 trifluoroethyl)carbonate (DFDEC), for use with the promising lithium-rich layered composite oxide high-energy cathode material xLi 2 MnO 3 ·(1-x)LiMO 2 (M = Mn, Ni, Co). O 2 (Li 1.2 O 2 (Li 1.2

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