In the energy storage industry, “degradation” has long been the elephant in the room. For years, project developers and system integrators have had to factor in costly battery replacements every 7 to 10 years, accepting a 3,000 to 5,000-cycle limit as the “industry standard.”
At Aurora-Cell, we just moved the goalposts.
We recently hit a massive milestone in our long-term aging tests, and the data suggests we aren’t just building a better battery—we are building a generational asset.
The “Torture Test”: 3C/3C at 100% DoD
Longevity is easy to achieve if you baby the battery. It’s a different story when you push it to the limit. We put our latest cells through a high-stress “torture test” designed to simulate the most demanding heavy-duty applications.
- Charge Rate: 3C (Constant high-current charging)
- Discharge Rate: 3C (Constant high-power output)
- Depth of Discharge (DoD): 100% (Full cycle, every time)
The Results at 5,000 Cycles
After crossing the 5,000-cycle mark under these aggressive conditions, the performance exceeded even our own internal projections:
- Upper Performance Tier: 98.13% Capacity Retention
- Conservative Tier: 95.37% Capacity Retention
- Efficiency: Coulombic efficiency remained stable near 100%, indicating virtually zero parasitic side-reactions.
Extrapolating the Future: The 20,000-Cycle Projection
When we apply linear degradation modeling to this data, the trajectory is clear. Based on current wear-rates, these cells are projected to maintain over 80% State of Health (SoH) for more than 20,000 full cycles.
What does 20,000 cycles actually mean? If your application requires one full cycle every single day, an Aurora-Cell would provide over 54 years of service life before reaching its retirement threshold.
Why This Changes the Economics of Energy (LCOE)
The most critical metric in energy storage is the Levelized Cost of Storage (LCOS). By quadrupling the cycle life compared to standard cells, Aurora-Cell technology effectively:
- Eliminates Replacement Cycles: No more mid-project “re-coring” of containerized BESS.
- Reduces Electronic Waste: One battery for the life of the project means a 75% reduction in material waste.
- Maximizes ROI: The cost-per-delivered-kWh drops to levels previously thought impossible for high-power applications.
Ready for Deployment: Available in Europe Now
We know that in the current market, “spec-sheet performance” is only half the battle—availability is the other half.
To support the European energy transition, we have established a robust logistics hub within the continent. Aurora-Cells are currently in stock in Europe, with a <7-day delivery time to every EU country. Whether you are building the next generation of heavy-duty electric transit, high-frequency grid regulation, or long-duration industrial storage, you don’t have to wait months for high-performance cells.
