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Graphene-sulfur composite as stable high energy capacity cathodes for Li-ion batteries

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In a paper published in the ACS journal Nano Letters , they suggest that this material represents a promising cathode material for rechargeable Li-ion batteries with high energy density. Sulfur also possesses other advantages such as low cost and environmental benignity. Earlier post.) Nevertheless, Wang et al.

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Bio-inspired graphene hierarchical structures as high-performance anode materials for Li-ion batteries

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A team from Nanyang Technological University (China) has developed a scalable self-assembly strategy to create bio-inspired honeycomb-like hierarchical structures composed of functionalized graphene sheets to work as anodes in lithium-ion batteries. Credit: ACS, Yin et al. Click to enlarge.

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24M emerges from stealth mode with new semi-solid Li-ion cell; <$100/kWh by 2020

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Stealth-mode battery start-up 24M has introduced its new semi-solid lithium-ion cell. Together, our inventions achieve what lithium-ion has yet to do—meet the ultra-low cost targets of the grid and transportation industries. By 2020 our battery costs will be less than $100 a kilowatt-hour (kWh).

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New Lithium rechargeable semi-solid flow cell offers energy densities an order of magnitude greater than previous flow batteries; possible applications in transportation and grid-scale storage

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Scheme of the semi-solid flow cell (SSFC) system using flowing lithium-ion cathode and anode suspensions. Even the highest energy density lithium ion cells currently available, e.g., 2.8–2.9 However, they currently use low energy density chemistries limited by electrolysis to ≈1.5 Source: Duduta et al. –2.9

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California Energy Commission awards almost $1.6M for energy research projects; $600K to Seeo for solid-state Li-ion grid-storage battery system

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Conventional Li-ion cell (left) compared to Seeo cell (right). The California Energy Commission has awarded $1,585,490 to spur research on projects including a solid-state Li-ion battery system for grid-scale energy storage. This technology would increase efficiency and lower production costs. Click to enlarge.

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Faradion demonstrates proof-of-concept sodium-ion electric bike

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E-bike powered by Faradion prototype Na-ion battery pack. For the proof-of-concept, the cells were manufactured to be larger than necessary to avoid unnecessary costs and lengthy manufacturing processes at this early stage. Sodium-ion intercalation batteries—i.e., Click to enlarge. Earlier post.). Click to enlarge.

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Graphene oxide-sulfur (GO-S) nanocomposite cathodes for high-capacity, stable cycling lithium sulfur batteries

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This approach enabled them to obtain a uniform and thin (around tens of nanometers) sulfur coating on graphene oxide sheets and address some of the challenges retarding the commercialization of Li/S batteries. However, there are a number of challenges in Li/S batteries, Ji et al. Earlier post.). —Ji et al.