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Scientists discover salt that makes batteries last 10x longer

A team at KAUST has revealed that the short lifespan of aqueous batteries is primarily due to "free water" molecules triggering harmful chemical reactions at the anode. By adding affordable sulfate salts like zinc sulfate, they significantly reduced this issue—boosting battery life over tenfold. The sulfate acts as a “water glue,” stabilizing the water structure and halting the energy-wasting reactions. Not only is this solution simple and cost-effective, but early results suggest it may be a universal fix for various types of metal-anode aqueous batteries.

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