E-stone Batteries is developing a long-life, low-cost, non-toxic battery that is made from abundant and widely available minerals
The abundance, direct availability and global utilization of iron makes it ideally suited as the affordable clean-energy storage material, enabling energy storage for everyone, everywhere.
E-Stone’s product combines an easy innovative fabrication method and uses a patented electrode formulation, making it possible to utilize the tremendous potential of iron. There is still nickel in their first nickel-iron batteries. But in terms of cost not more than there is lead in a lead-acid battery. The cycle life is already proven to be several times longer than lead-acid batteries and the energy density is 2-3 times greater. In future, E-Stone aims to replace the nickel for much cheaper variants (e.g. air electrodes).
|Participation since||May 2015|
|Founders||Thomas van Dijk
|Linked faculty||Faculty of Applied Sciences|
|Company history and milestones|
|April 2014||Received STW Valorisation Grant phase 1|
|June 2014||Received STW Valorisation Grant phase 2|
|April 2015||Incorporation of E-Stone Batteries|
|April 2015||Received TUD Proof of Concept loan|
|February 2017||Closed first funding round|