Many egg producers are also moving away from conventional battery cages to meet the increasing demand for cage - free. (humanesociety.org)
Conventional battery materials are solid, while a flow battery's chemicals — often expensive because they're from rare metals — are liquid. (discovermagazine.com)
A promising option is to create a higher capacity battery by replacing the negative electrode in conventional batteries with one made of lithium metal. (pnnl.gov)