Carnegie Mellon University
This presentation will cover the scaling implementation of large-scale energy storage electrochemical batteries. The core devices use an asymmetric/hybrid configuration wherein the anode consists of carbon and the cathode is an MnO2 – based alkali intercalation compound (either Na4Mn9O18 or cubic spinel -MnO). Data will be presented showing that large scale industrially packaged individual batteries with over 30 Wh in capacity have be produced and qualified. Further data will show that packs of these batteries in the kWh range have been effectively implemented in field-testing. This will include support for both smaller off-grid applications with bus voltages in the in the 20 to 100 V range, as well as, grid compatible systems with bus voltages in excess of 1000 V.
Key topics to be addressed include: (1) a description of our path to scaled production of these devices, (2) lifetime performance of this system in temperatures ranging from minus 10˚C through 60˚C, (3) data from third party field tests in relevant applications showing the performance of our batteries under application specific load profiles, and (3) our vision for future implementation of this technology on a massive scale.