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Trapping Li polysulfides in a polymer matrix to improve Li-S battery performance

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To overcome the challenge of soluble polysulfides as charge/discharge intermediates in Li-S batteries, researchers at the University of Texas at Austin, with colleagues at Murray State University, have designed highly crosslinked polymer-electrolyte coating layers with electron-donating groups to bind the polysulfides. De La Hoz, Kevin M.

Polymer 150
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BMW i Ventures invests in Natural Fiber Welding; plant-based leathers, yarns and foams

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MIRUM is made with natural, biodegradable polymers. Synthetic polyurethane-based leathers require around 5 kg carbon dioxide equivalent per kg of synthetic polymer produced. MIRUM requires no tanning and is made from natural polymers and materials (e.g., NFW was founded in 2015 and is based in Peoria, Illinois.

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Grafoid introduces ion-selective graphene polymer membrane for Li-ion battery electrode protection

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a Canadian graphene R&D, investment and technology licensing company ( earlier post ) introduced its GPURE Graphene Polymer nano-porous membrane intended for next generation Li-Ion battery applications. Grafoid Inc., GPURE (F)- May be applied as a graphene varnish for wood surfaces to protect against moisture, UV light and high temperatures.

Li-ion 150
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Li-ion sulfur polymer battery shows high energy density as well as safety

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A team from the University of Rome Sapienza has developed a rechargeable lithium-ion polymer battery based on the combination of a high capacity sulfur-carbon cathode, nanostructured Li x Sn-C anode and polysulfide-added PEO-based gel membrane. —Agostini & Hassoun (2015). mAh g S -1 , depending on the cycling rate.

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Toyota researchers develop truffle-inspired cathode material for Li-S battery with layer-by-layer self-assembled polymer membrane

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A three-dimensional view of the concept depicting the carbon-infused sulfur core, the hollow carbon nanoparticles and multilayer selective polymer membrane decorated with functionalized carbon. However, the use of polymers as interface modifiers, composites, or coatings have improved the cyclability of sulfur cathodes.

Polymer 150
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New multifunctional polymer binder achieves theoretical capacity of LiFePO4 Li-ion batteries without additives

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Researchers led by a team from Griffith University in Australia have developed a multifunctional polymer binder that not only maintains the outstanding binding capabilities of sodium alginate but also enhances the mechanical integrity and lithium-ion diffusion coefficient in a LiFePO 4 (LFP) electrode during the operation of the batteries.

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EPoSil: electroactive polymers for generating electricity from wave power

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A German consortium involving four companies and and two universities is developing dielectric elastomers (electroactive polymers) for the conversion of mechanical energy—in this case wave power—into electrical power. This is an essential part of the electroactive polymer that converts mechanical energy into electrical power.

Polymer 207