batteries

New tech can be used in wearable devices like wireless earphones, hearing aids, smartwatches, environmental sensors

In a next-generation European battery alliance project to research, develop and build solid-state battery

They are seen as a fire risk and there are concerns that if a fire were to start it could not easily be extinguished

Smartphones that charge in five minutes 'can be available next year'

Grid-scale batteries could drive the growth of renewable energy across Australia and Asia

The batteries can only be packed in carry-on baggage or carried by the passenger