Precipitating salt shrinks ionic battery

A miniaturized solid salt reverse electrodialysis battery: a durable and fully ionic power source

Source: © Royal Society of Chemistry

Salt precipitation method dispenses with the need for a mechanical pump, leading to smaller, cheaper aqueous ionic batteries

A new flexible aqueous ionic battery is the first of its kind to operate without an electrolyte-driving pump. This makes the battery much smaller than its predecessors – about the size of a USB drive – and simple and cheap to manufacture with no metal components.