Sound waves and a 2D material may be the key to longer-lasting batteries.
The big challenge with using MXene is that it rusts easily, thereby inhibiting electrical conductivity and rendering it unusable. To overcome this issue, the RMIT group looked into sound waves and discovered that at a certain frequency, they remove rust from MXene, restoring it to close to its original state.
Alijani and his colleagues believe that their work to remove rust from Mxene opens the door for the nanomaterial to be used in a wide range of applications in energy storage, sensors, wireless transmission and environmental remediation. The ability to quickly restore oxidized materials to an almost pristine state also represents a game-changer in terms of the circular economy.
“Materials used in electronics, including batteries, generally suffer deterioration after two or three years of use due to rust forming,” Amgad Rezk, senior author of the paper, said. “With our method, we can potentially extend the lifetime of battery components by up to three times.” While the innovation is promising, the team needs to work with industry to integrate its acoustics device into existing manufacturing systems and processes. They are also exploring the use of their invention to remove oxide layers from other materials for applications in sensing and renewable energy.
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