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 First stretchy and washable battery        

   

             The scientists in UBC have produces what could be the first battery that is flexible and also washable. It is new research that help in electrical work very easily. It also works even when twisted or stretched to twice its normal length, or after being tossed in the laundry.

                   Dr. Ngoc Tan Nguyen (the postdoctoral fellow at UBC's faculty of applied science) said that- “Wearable electronics are a big market and stretchable batteries are essential to their development. However, up until now, stretchable batteries have not been washable. This is an essential and new addition if they are to withstand the scope of each day use.”

                 The strechy and washable battery created by Dr. Nguyen and his colleagues offers a number of engineering advances. In normal batteries, the internal layers are hard materials encased in a rigid exterior. The UBC resercher group made the key compounds in this case, zinc and manganese dioxide stretchable by grinding them into tiny pieces and then importing them in a rubbery plastic, or polymer. The battery contains different ultra-thin layers of these polymers rounded inside a casing of the same polymer. This building produces an airtight, waterproof seal that check the quality of the battery ththroug again and again use. It was group member Bahar Iranpour, who are the PhD student, who proposed throwing the battery in the wash to trial its seal.

             Until now, the battery has withstood 39 wash cycles and the team expects to further improve its durability as they continue to develop the technology. The Iranpour said that - “We put our prototypes through an actual laundry cycle in both home and commercial-grade washing machines. They came out not damaged and functional and that’s how we know this battery is truly strong". The choice or option of zinc and manganese dioxide chemistry also consult another important application.

               Nguyen also said that - “We went with zinc-manganese because for devices worn next to the skin, it’s a safer chemistry than lithium-ion batteries, which may created dangerous compounds when they separated".

An affordable option

            Detailed work is in motion to enhance the battery’s stability output and cycle life, but already ththxhange has approaches commercial interest. The scientists believe that when the new discovered battery is start Or ready for purchaser, it could cost the equal as an usual rechargeable battery.

               Electrical and computer engineering, professor Dr. John Madden (Director of UBC's Advanced Materials and Process Engineering Lab who supervised the work) says that - “The compounds used are incredibly cheap, so if this is builded in big numbers, it will be low in cost”. In incorporation to observes and plotted for determining very important signs, the battery might also be coordinated with clothing that may asassiduousl transformation colour or temperature.

                  The reserchers says that- “Wearable objects required power. By producing a cell that is mushy,  stretchable and washable. We are creating wearable power comfortable and convenient”. The battery is described in a new paper published newly in Advanced Energy Materials.