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Li-S battery company OXIS Energy reports 300 Wh/kg and 25 Ah cell, predicting 33 Ah by mid-2015, 500 Wh/kg by end of 2018

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UK-based Lithium-sulfur battery company OXIS Energy ( earlier post ) reported developing a Lithium-sulfur cell achieving in excess of 300 Wh/kg. OXIS is collaborating with leading European companies and universities to harness the new material developments to enhance energy density and cyclability.

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BioSolar begins development of high-energy anode technology

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BioSolar’s cathode technology, which has been the primary focus of its university-led research and development efforts, is a novel conductive polymer material that leverages fast redox-reaction properties rather than conventional lithium-ion intercalation chemistry to enable rapid charge and discharge. Earlier post.).

Energy 150
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Tsinghua team develops high-efficiency and high-stability Li metal anodes for Li-sulfur batteries

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Researchers from Tsinghua University have developed what they call a “promising strategy” to tackle the intrinsic problems of lithium metal anodes for Lithium sulfur batteries—dendritic and mossy metal depositing on the anode during repeated cycles leading to serious safety concerns and low Coulombic efficiency.

Li-ion 150
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Stanford team develops method enabling use of lithium sulfide as cathode material for high specific energy batteries; a simpler approach rivaling lithium sulfur

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Numbers in parentheses are the specific energy of a battery made of the cathode and a silicon anode with a specific capacity of 2000 mAh/g and potential of 0.45 V vs Li/Li+. (B) B) Schematic diagram showing the effect of applying a high cutoff to activate Li 2 S. Credit: ACS, Yang et al. Click to enlarge.