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Contact: David Ruth
Rice University


Caption: Purpurin, left, extracted from madder root, center, is chemically lithiated, right, for use as an organic cathode in batteries. The material was developed as a less expensive, easier-to-recycle alternative to cobalt oxide cathodes now used in lithium-ion batteries.

Credit: Ajayan Lab/Rice University

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Related news release: Rice cultivates green batteries from plant

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