ION's solid-state battery uses a ceramic electrolyte separator, a critical component that sets it apart from traditional lithium-ion batteries, which rely on a liquid electrolyte. Unlike many existing solid-state batteries that require compression to maintain stability, ION’s battery cycles without the need for such systems. This development eliminates the necessity for bulky and complex components like cooling systems and fire barriers, which are typically required to manage the risks associated with conventional lithium-ion batteries.
Dr. Nicholas Hudak, Director of Cell R&D at ION, highlighted the significance of this achievement, stating, "The stable cycling that we've repeatedly observed in our R&D cells is the culmination of key innovations by ION's ceramic scientists and battery scientists over the past several years. The combination of our next-generation ceramic electrolyte and unique cell architecture has enabled the only known anodeless, compressionless, lithium-metal battery that can cycle with this level of stability at 25°C."
Importance of the 800-Cycle Benchmark
Achieving 800 cycles is a notable benchmark for ION, particularly as it positions their technology for broader applications. Robert Whittelsey, Principal Technical Program Manager at ION, emphasized that reaching this milestone is crucial for the company’s ambitions in the electric vehicle and grid storage sectors. "This accomplishment opens the door to applications that require high cycle life, such as electric vehicles and large-scale energy storage, which are critical for the future of energy," Whittelsey explained.
Support and Future Plans
ION’s progress has attracted significant attention, including a $20 million award from the U.S. Department of Energy’s ARPA-E Scale-Up program. This funding is intended to accelerate the development of larger format cells suitable for grid storage applications. Neil Ovadia, Vice President of Supply Chain at ION, discussed the company’s future plans, noting that they are focused on scaling up production and reducing costs through strategic partnerships with manufacturers and research institutions.
Safety and Sustainability Benefits
One of the standout features of ION’s solid-state battery is its inherent safety. Traditional lithium-ion batteries, which use liquid electrolytes, are prone to fire risks, especially under extreme conditions. In contrast, ION's solid-state technology mitigates these risks, making it an attractive option for large-scale energy storage and other applications where safety is paramount.
ION’s batteries also offer sustainability advantages. Unlike traditional batteries that rely on less sustainable materials like graphite, ION’s solid-state design uses a 3D ceramic structure, which is both more recyclable and environmentally friendly. This design not only reduces the environmental impact of battery production but also enhances the overall efficiency and lifespan of the battery.
Next Steps
As ION Storage Systems continues to advance its technology, the company is gearing up for the commercialization of its solid-state batteries. Dr. Greg Hitz, ION’s Chief Technology Officer, expressed enthusiasm about the company’s trajectory, saying, "ION has now produced a cell with performance that's compelling to replace a huge portion of the lithium-ion market. Next up is building it into commercial format, multilayer cells off our pilot line and doing so with high repeatability to put in customers' hands."
The company’s progress reflects the growing interest and investment in solid-state batteries, which are increasingly seen as a key component in the future of energy storage, electric vehicles, and other high-demand applications. With its recent achievements, ION Storage Systems is well-positioned to play a significant role in this evolving landscape.