Australian breakthrough extends smartphone battery life threefold

If the predictions of researchers from Australia come to fruition, it is possible that in the future, smartphone replacements may become less frequent. Many users are familiar with the problem where, after about two or three years, the phone's battery loses its efficiency, and the device quickly discharges. The new batteries that scientists are developing are not only intended to last longer but also to be more recycling-friendly.

In their research, specialists highlight that only 10% of used phones in Australia are recycled. A similar situation exists in other parts of the world because processing devices with lithium-ion batteries is complicated and not cost-effective. To change this, scientists from RMIT in Melbourne used MXene—a compound comparable to graphene with high electrical conductivity—instead of lithium.

Although MXene corrodes over time, engineers from RMIT have found a way to solve this problem. Tests have shown that exposing the battery to sound waves at a frequency of 10 Hz for a minute effectively removes corrosion, allowing the battery to be reused.

This process can be repeated twice, meaning that with the standard battery life in smartphones being about three years, new MXene batteries could last up to nine years.

Of course, this assumes that other smartphone components function flawlessly. Even if the new batteries do not lead to less frequent phone replacements, introducing such a solution is a step towards more efficient battery recycling. Ultimately, this could help reduce the amount of electronic waste. Researchers are already seeking business partners interested in bringing this technology to the market.