29 Jan '16, 2pm

Scientists make eco-friendly batteries out of leaves

“The natural shape of a leaf already matches a battery’s needs,” described Fei Shen, another author of the study. This includes a low surface area and intricately packed internal structures that can fit the sodium electrolytes used. The scientists heated up an oak leaf to 1,000 degrees Celsius to destroy the existing carbon structures and then introduced the electrolytes to the leaf’s natural pores for absorption. The crew will continue to experiment with other leaves of varying shapes and sizes to find the best structure for energy storage, yet other natural materials would also work, such as peat moss, banana peels, and melon skin. Perhaps one day we will all be charging our smartphones with cheap, environmentally-friendly leaf batteries.

Full article: http://inhabitat.com/scientists-make-eco-friendly-batteri...

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