The bio-battery invented by Daishi Zheng generates electricity from carbohydrates, using special enzymes as catalysts. In the process, the device generates oxygen and water. The designer claims his sugar-based bio-battery lasts up to four times longer than a fully charged lithium battery and is much easier to recharge: just pour some more sweet fuel. Lithium batteries are very expensive and harmful for the environment, so if Zheng’s Coke-powered cellphone turns out to be real, it would be a significant breakthrough.
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