Battery Hub
The ability to store and deliver energy efficiently is the key bottleneck for many emerging technologies, from electric vehicles to renewable energy systems.
Last updated: 28th May 2025
Battery Energy Density Trends
Source: Ziegler, Micah S.; Trancik, Jessika E., 2021, "Data series for lithium-ion battery technologies"
Data insights
The EV industry has spurred further investment in increasing energy density, with the latest Tesla 4680 cells hitting 330Wh/kg at the cell level. When new battery chemistries hit the market, we can expect to see commercially viable electric trucks and eVTOL aircraft start to emerge.