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UC Riverside team fabricates nanosilicon anodes for Li-ion batteries from waste glass bottles

23 April 2017

Researchers at the University of California, Riverside’s Bourns College of Engineering have used waste glass bottles and a low-cost chemical process to fabricate nanosilicon anodes for high-performance lithium-ion batteries.

Coin cell batteries made using the glass bottle-based silicon anodes greatly outperformed traditional batteries in laboratory tests. Carbon-coated glass derived-silicon (gSi@C) electrodes demonstrated excellent electrochemical performance with a capacity of ~1420 mAh g-1 at C/2 rate after 400 cycles. An open access paper describing the research was published in the Nature journal Scientific Reports.

Silicon anodes can store up to 10 times more energy than conventional graphite anodes, but expansion and shrinkage during charge and discharge make them unstable. Downsizing silicon to the nanoscale has been shown to reduce this problem, and by combining an abundant and relatively pure form of silicon dioxide and a low-cost chemical reaction, the researchers created lithium-ion half-cell batteries that store almost four times more energy than conventional graphite anodes.

Cengiz Ozkan, professor of mechanical engineering, and Mihri Ozkan, professor of electrical engineering, led the project.

To create the anodes, the team used a three-step process that involved:

  1. Crushing and grinding the glass bottles into a fine white power;

  2. A magnesiothermic reduction to transform the silicon dioxide into nanostructured silicon; and

  3. Coating the silicon nanoparticles with carbon to improve their stability and energy storage properties.

Changling Li, a graduate student in materials science and engineering and lead author on the paper, said one glass bottle provides enough nanosilicon for hundreds of coin cell batteries or three to five pouch cell batteries.

This research is the latest in a series of projects led by Mihri and Cengiz Ozkan to create lithium-ion battery anodes from environmentally friendly materials. Previous research has focused on developing and testing anodes from portabella mushrooms, sand, and diatomaceous (fossil-rich) earth.

In addition to Mihri and Cengiz Ozkan and Li, contributors include graduate students Chueh Liu, Wei Wang, Zafer Mutlu, Jeffrey Bell, Kazi Ahmed and Rachel Ye. Financial support for this work was provided by the UC-Riverside and UC Faculty Climate Champion initiative.

The UCR Office of Technology Commercialization has filed a patent application for the inventions above.

Resources

  • Changling Li, Chueh Liu, Wei Wang, Zafer Mutlu, Jeffrey Bell, Kazi Ahmed, Rachel Ye, Mihrimah Ozkan & Cengiz S. Ozkan (2017) “Silicon Derived from Glass Bottles as Anode Materials for Lithium Ion Full Cell Batteries” Scientific Reports 7, Article number: 917 doi: 10.1038/s41598-017-01086-8

April 23, 2017 in Batteries | Permalink | Comments (4)

Comments

We constantly read about a cheaper better battery since years, im sick and tire and i will buy for my bext car a nissan e-note instead that do more mpg than the prius for less money on top of that. Keep your dirty empty bottle for ev buyers that will probably switch for the e-note instead because it is already the best seller in japan right now and corrupted medias donÀ't say a word about this.

This is a lab exercise it is not production. It is an indication of what the science does to help others understand. This is the nature of research that we need.

Doy las gracias a Greencars congress por deleitarnos con estas noticias pero la cuestión es que llevamos muchos años con noticias prometedoras como esta de hoy, pero jamas llegan a ninguna celda comercializable ¿Por que?. Todavia en pleno 2017 no tenemos ninguna celda comercializada que llegue a los 300wh/kg.

They key point is the glass waste can be reformed into a better battery that won't explode from flooring it. fuel cells only scale higher then this anode chemistry.
Enjoy they few breakthroughs we get
Trump's chumps are trying send us back to flinstones, 6gal / mile chevy trucks
I can hear that smug Drill baby ,kill the dept of Enegy rant coming.

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