Battery Technologies News

Nano Liquid Battery Could Reduce EV Charging Time to Seconds
http://www.futurecar.com/2590/Nano-Liquid-Battery-Could-Reduce-EV-Charging-Time-to-Seconds
by Michael Cheng - Aug 25, 2018

The design and mechanisms of the flow battery were formally documented in a study published in the Nature Chemistry journal, which was funded by the University of Glasgow, the European Research Council and the Engineering and Physical Sciences Research Council. The revolutionary battery uses a thick liquid consisting of nano molecules for efficient storage of either hydrogen gas or electric power.

Highly reduced and protonated aqueous solutions of [P2W18O62]6− for on-demand hydrogen generation and energy storage
https://www.nature.com/articles/s41557-018-0109-5

Abstract: As our reliance on renewable energy sources grows, so too does our need to store this energy to mitigate against troughs in supply. Energy storage in batteries or by conversion to chemical fuels are the two most flexible and scalable options, but are normally considered mutually exclusive. Energy storage solutions that can act as both batteries and fuel generation devices (depending on the requirements of the user) could therefore revolutionize the uptake and use of renewably generated energy. Here, we present a polyoxoanion, [P2W18O62]6−, that can be reversibly reduced and protonated by 18 electrons/H+ per anion in aqueous solution, and that can act either as a high-performance redox flow battery electrolyte (giving a practical discharged energy density of 225 Wh l−1 with a theoretical energy density of more than 1,000 Wh l−1), or as a mediator in an electrolytic cell for the on-demand generation of hydrogen.

This Battery Is Made of Paper and Powered by Bacteria
https://singularityhub.com/2018/09/06/this-battery-is-made-of-paper-and-powered-by-bacteria

A team of scientists at the State University of New York has developed a paper-based, single-use battery that uses bacteria as a power source—all you need to add is water or even just a bit of spit.

The team presented their latest advances in a paper in Advanced Sustainable Systems, describing how the paper battery technology works:

“Poly (amic) acid and poly (pyromellitic dianhydride‐p‐phenylenediamine) are processed and incorporated into a porous, hydrophilic network of intertwined cellulose fibers to revolutionize oxygen‐blocking, proton‐exchanging, and biodegrading properties of the paper‐based microbial biobatteries, which ultimately offer the transformative potential of “green” electronics.”

Roughly translated, the battery involves plastering freeze-dried exoelectrogenic bacteria onto pieces of paper with thin layers of metals and other materials printed onto the paper’s surface. Exoelectrogens can transfer electrons outside of their cells. When said electrons pass through their cell membrane and touch anodes on the paper’s surface, they generate electricity.

The bacteria need to be reanimated to activate the battery, and the research team found that both water and saliva can do the job. The State University scientists say that once it is drained of energy, nature takes over and decomposes the battery.

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