lithium-free batteries from algae

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Maria Stromme, professor of nanotechnology , an engineering physicist, has found a way to extract cellulose from green algae bloom — a poison that is polluting coastlines and killing fish — and convert it into lithium-free batteries.Each fibre is covered with conducting polymer. The sheets so created have a large surface area that is coated with salt water for ion exchange. The sheets are flexible; they can be rolled up or cut into smaller sheets and stacked.

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