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Researchers use carbon-based anodes with “bumpy” surfaces for Li-ion batteries that last longer in extreme cold

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The resulting 12-sided carbon nanospheres had “bumpy” surfaces that demonstrated excellent electrical charge transfer capabilities. The resulting 12-sided carbon nanospheres had bumpy surfaces that demonstrated excellent electrical charge transfer capabilities. capacity retention at 0.1 A g –1 as the temperature drops to ?20

Li-ion 418
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Carbon nanomembrane prevents dendrite formation in Li-metal batteries, doubles lifetime

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The energy density of traditional lithium-ion batteries is approaching a saturation point that cannot meet the demands of the future—in electric vehicles, for example. Lithium metal batteries can provide double the energy per unit weight when compared to lithium-ion batteries. Here, the use of an ultrathin (?1.2

Carbon 448
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Drexel team develops stable Li-S battery with carbonate electrolyte

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Researchers at Drexel University have stabilized a rare monoclinic ?-sulfur sulfur phase within carbon nanofibers that enables successful operation of Lithium-Sulfur (Li-S) batteries in carbonate electrolyte for 4000 cycles. sulfur and its application in Li-S batteries. —Pai et al. —Pai et al.

Carbon 285
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Evonik introduces silicon-carbon composite material for anodes: Siridion Black

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Evonik has introduced the silicon-carbon composite material Siridion Black as a new anode material for lithium-ion batteries. Siridon Black features an amorphous Si/C structure with a unique carbon concentration gradient for superior stability and a high specific capacity of more than 3,300 mAh/g. Source: Evonik.

Carbon 410
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Researchers convert spent asphalt to mesoporous carbon anode material for Li/Na/K-ion batteries

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Researchers at Changsha University of Science & Technology in China have used spent asphalt to produce a high-performance universal Li/Na/K-ion anode material. As an anode material for Li-ion batteries, the mesoporous carbon exhibits a reversible capability of 674.2 —Xie et al. 2021.230593. 2021.230593.

Li-ion 221
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Researchers design new 3D carbon monolith with 5-7 nanoribbons as anode material for sodium-ion batteries

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A research team led by a group from Peking University has designed a new 3D carbon monolith, Hex-C 57 , using 5–7 nanoribbons as the building block, for use asan anode material for sodium-ion batteries.A paper on their work appears in the Journal of Power Sources. —Sun et al. mAhg −1 ) and volumetric capacity (314.61

Sodium 150
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Sulfur-carbon nanofiber composite for solid-state Li-sulfur batteries

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Researchers at Toyohashi University of Technology in Japan have developed an active sulfur material and carbon nanofiber (S-CNF) composite material for all-solid-state Li-sulfur batteries using a low-cost and straightforward liquid phase process. Copyright Toyohashi University Of Technology. —Phuc et al.

Carbon 243