An anode-free zinc battery that could someday store
renewable energy

Renewable energy sources, such as wind and solar
power, could help decrease the world’s reliance on fossil fuels.
But first, power companies need a safe, cost-effective way to store
the energy for later use. Massive lithium-ion batteries can do the
job, but they suffer from safety issues and limited lithium
availability. Now, researchers reporting in ACS’ Nano Letters have
made a prototype of an anode-free, zinc-based battery that uses
low-cost, naturally abundant materials.