20191223(月)

The thin layer electrodes are each fixed on a substrate


In order for a complicated object like a battery to be made self-healing, all of its individual components must also be self-healing. The capacity and charging/discharging properties of a battery "armband" placed around a doll's elbow were maintained, even after repeated break/self-healing cycles.jpeg Scientists have built a thin, flexible, lithium ion battery with self-healing properties that can be safely used in wearable electronics.Scientists have developed a thin,flexible, lithium ion battery with self-healing properties that can be safely used in wearable electronics.



The thin layer electrodes are each fixed on a substrate of self-healing polymer. Between the layers, the scientists embedded the necessary lithium compounds in nanoparticle form. This gel electrolyte also serves as a separation layer between the electrodes. The parallel arrangement of the nanotubes allows them to come together much better than layers of disordered carbon nanotubes.Between the electrodes is a novel, solvent-free electrolyte made from a cellulose-based gel with an aqueous lithium sulfate solution embedded in it.In contrast to conventional lithium ion batteries, the lithium compounds cannot leak out of the electrodes, either while in use or after a break.Scientists have built a thin, flexible, lithium ion battery with self-healing properties that can be safely used in wearable electronics. AA Phone battery.



This damage not only causes the battery to fail, it can also cause a safety problem: Flammable, toxic, or corrosive gases or liquids may leak out.Existing lithium ion batteries for wearable electronics can be bent and rolled up without any problems, but can break when they are twisted too far or accidentally stepped on - which can happen often when being worn. The electrolyte also poses no problems.Researchers from Fudan University in China, the Samsung Advanced Institute of Technology in South Korea, and the Samsung R&D Institute in China have now developed a new family of lithium ion batteries that can overcome such accidents thanks to their amazing self-healing powers.



After a break, it is only necessary to press the broken ends together for a few seconds for them to grow back together.Both the self-healing polymer and the carbon nanotubes "stick" back together perfectly.Whereas conventional electrolytes decompose immediately upon exposure to air, the new gel is stable. Free of organic solvents, it is neither flammable nor toxic, making it safe for this application.. The research was published in the journal Angewandte Chemie.The electrodes in these batteries consist of layers of parallel carbon nanotubes. However, power sources remain a problem.Even after completely breaking apart, the battery can grow back together without heavy hex nuts Suppliers significant impact on its electrochemical properties, researchers said. Electronics that can be embedded in clothing are a growing trend






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