Scientists identify another reason why batteries can’t charge in minutesHaste makes waste,

Scientists identify another reason why batteries can’t charge in minutesHaste makes waste, as the saying goes. Such a maxim may be especially true of batteries, thanks to a new study that seeks to identify the reasons that cause the performance of fast charged lithium-ion batteries to degrade in electric vehicles.In new research from the U.S. Department of Energy’s (DOE) Argonne National Laboratory, scientists have found interesting chemical behavior of one of the battery’s two terminals as the battery is charged and discharged.Lithium-ion batteries contain both a positively charged cathode and a negatively charged anode, which are separated by a material called an electrolyte that moves lithium ions between them. The anode in these batteries is typically made out of graphite—the same material found in many pencils. In lithium-ion batteries, however, the graphite is assembled out of small particles. Inside these particles, the lithium ions can insert themselves in a process called intercalation. When intercalation happens properly, the battery can successfully charge and discharge.Read more. -- source link

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