Battery storageProject Testing the Performance of Lithium Ion Batteries
This report details findings of the Lithium Ion Battery Test Centre program, which involves performance testing of conventional and emerging battery technologies.
ITP Renewables (ITP) are testing the performance of small-scale residential/commercial battery packs in a purpose built, climate-controlled enclosure at the Canberra Institute of Technology. Round-trip efficiency and capacity fade as a function of cycles completed are reported, alongside various qualitative observations regarding procurement, installation, integration, and reliability.
This report describes the replacement of the Redflow ZCell and SimpliPhi PHI 3.4 packs, ongoing challenges controlling the Tesla Powerwall 2, the insolvency of Aquion and Ampetus, and some operational issues with the CALB, LG Chem, EcoUlt and GNB lead-acid battery packs.
Despite these issues, capacity fade trends are well-established for both Phase 1 and Phase 2 battery packs, and significant variation in performance between packs is apparent. DC round-trip efficiency varies less between packs, with average values of 85-95% apparent.
The Battery Test Centre website continues to provide an effective means of knowledge sharing with total page views of 103,500, global reach, and good interaction with the content.