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Rechargeable battery to power homes from rooftop solar panels

Mon, Sep 28, 2015, 12:49 PM
Washington, Sep 28: A team of Harvard University scientists and engineers has demonstrated a safe and affordable battery capable of storing energy from intermittent sources -- like rooftop solar panels -- that is suitable for the home.

The rechargeable battery can make storage of electricity from intermittent energy sources like solar and wind safe and cost-effective for both residential and commercial use.

In the operation of the battery, electrons are picked up and released by compounds composed of inexpensive, earth-abundant elements (carbon, oxygen, nitrogen, hydrogen, iron and potassium) dissolved in water.

The compounds are non-toxic, non-flammable, and widely available, making them safer and cheaper than other battery systems.

"That is huge when you're storing large amounts of electrical energy anywhere near people," explained Michael J. Aziz from Harvard Paulson School of Engineering and Applied Sciences (SEAS).

This new battery chemistry was discovered by post-doctoral fellow Michael Marshak and graduate student Kaixiang Lin working together with co-lead author Roy Gordon, Thomas Dudley Cabot Professor of Chemistry and professor of materials science at Harvard.

The research appeared in a paper published in the journal Science.
Agency: IANS

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