“By finding a second life for used EV batteries, manufacturers can reduce waste, create new revenue streams, and avoid the costs associated with chemical and toxic waste mitigation,” she said.
Chavez explained that EV batteries usually have an 8-10-year warranty. After that, the batteries are retired from EV use but can often still be suitable for other energy storage applications because they retain around 70%-80% of their original capacity.
According to the article, storage systems using second life batteries can range from EV fast charging battery support, which might need only one used EV battery, to a system for large-scale frequency regulation, which would likely require multiple EV battery systems.
“Second life batteries still have barriers to overcome in the market, such as efficiently identifying supplier to project integrator pipelines and reaching economies of scale,” Chavez said. “However, this technology is uniquely positioned to bridge many of these issues. Accelerating the growth of these kinds of technologies encourages the market to provide equitable access to clean energy for those who need it most with solutions that have economic benefits across the value chain.”