Chinese scientists developed a water battery capable of surviving 120,000 charging cycles reliablyNeutral electrolytes prevented corrosion that usually destroys aqueous batteries over timeThe battery reportedly lasts centuries under normal grid storage operating conditionsScientists from the City University of Hong Kong and Southern University of Science and Technology have developed a new type of water-based battery that could last for hundreds of years without losing its capacity over time.Published in Nature Communications, the device uses synthesized covalent organic polymers as an anode for magnesium and calcium ions instead of traditional battery materials.The researchers found a specific compound that combines high-density carbonyl…