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MIT: hybrid cathodes could boost energy capacity of lithium-sulfur batteries

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The relationship between cathode porosity and predicted cathode-specific volumetric energy density e v (a) and gravimetric energy density e g (b) of the hybrid Mo 6 S 8 /S 8 cathode with all carbon included (HMSC) and C/S 8 cathode with different C/S 8 and Mo 6 S 8 /S 8 ratios. The net effect of using the new material is substantial.

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HZB team devises new Ti4O7 cathode material for Lithium-sulfur batteries

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Researchers at the Helmholtz-Zentrum Berlin für Materialien und Energie (HZB), with colleagues from Humboldt-Universität zu Berlin and University of Potsdam, have fabricated a nanomaterial made from nanoparticles of a titanium oxide compound (Ti 4 O 7 ) for use as a cathode material in lithium-sulfur batteries. Credit: HZB.

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China team develops new high-performance cathode for Li-sulfur batteries

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Jian Liu and Prof.Zhongshuai Wu from the Dalian Institute of Chemical Physics (DICP) of the Chinese Academy of Sciences have developed Fe 1-x S-decorated mesoporous carbon spheres as a cathode material for lithium-sulfur batteries. This further causes low capacity and stability of lithium-sulfur batteries.

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Silica-based cathode enables long-life Li-S batteries

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Scientists from the Daegu Gyeongbuk Institute of Science and Technology, Korea, have developed a novel silica-based cathode for lithiumsulfur batteries, thereby enabling the realization of batteries that can last for more than 2,000 charge/discharge cycles. Second, sulfur is non-conducting. —Prof Yu.

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Drexel team develops stable Li-S battery with carbonate electrolyte

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-sulfur phase within carbon nanofibers that enables successful operation of Lithium-Sulfur (Li-S) batteries in carbonate electrolyte for 4000 cycles. Carbonates are known to adversely react with the intermediate polysulfides and shut down Li-S batteries in first discharge. —Pai et al.

Carbon 285
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Progress with Lithium-sulfur battery technology

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Researchers from Hanyang University in Korea and the University of Rome Sapienza (Italy) have developed a lithium-sulfur battery employing a high-performance mesoporous hard carbon spherules-sulfur cathode and a stable, highly conducting electrolyte. 1 (S) at 0 °C for more than 170 charge-discharge cycles.

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Stanford team develops new approach to overcoming capacity fading in Lithium-sulfur batteries

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Electrochemical performance of the modified hollow carbon nanofiber cathode. (a) a) Specific capacities of the PVP modified sulfur cathode at C/5, C/2 and 1C cycling rates. (b) Lithium sulfur batteries are of great interest due to their high specific energy and relatively low cost (e.g., Credit: ACS, Zheng et al.