E-Stone
"The rock-solid battery technology"
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).
| Company Profile | |
| Incorporation | April 2015 |
| Participation since | May 2015 |
| Founders | Thomas van Dijk |
| Employees | 8 |
| Linked faculty | Faculty of Applied Sciences |
| Website | e-stonebatteries.com |
| 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 |
