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Scientists Revitalize Rusted Stainless Steel By Turning It Into Batteries

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Waste management is a problem in many places around the world, including large countries, like China. The presence of overcrowded landfills and even "off record," unregulated landfills were among the issues which led to the country's release of new waste management guidelines as part of their larger five-year environmental reform plan, back in 2015. This plan included sections on renewable energy, preventing air pollution, and managing waste. Preventing more waste from piling up, as well as reusing and recycling as much waste as possible, were key goals in the plan. 

Now, scientists in China have developed a way to reduce waste and improve the function of certain batteries at the same time. According to research recently published in the Angewandte Chemie journal, researchers have begun turning rusty stainless steel mesh into electrodes in potassium ion batteries. 

Lithium batteries are the most widely used batteries in the world, in spite of the fact that they are expensive to produce and tend to degrade fairly quickly, especially when exposed to heat. Under certain conditions, lithium batteries can even explode. The cost, short lifespan, and potential danger of these batteries has led researchers to look for alternatives.