Automakers and recycling companies are exploring the repurposing of old electric vehicle (EV) batteries for grid-scale energy storage. This move aims to support the expansion of renewable energy and address the issue of electronic waste. As wind and solar plants increasingly rely on lithium-ion batteries to store excess power, the same type of batteries used in EVs can be repurposed for grid storage. With the number of EVs expected to reach 300 million by 2030, there will be a valuable market for retired batteries, estimated to be around 1.7 million, with a combined value of $5.1 billion. These batteries can be resold for small-scale applications or used in larger-scale projects such as powering energy-storage systems. Automakers like Nissan and Renault are stepping up efforts to repurpose old batteries, and global investment in grid-scale batteries reached $6.8 billion in 2021. However, batteries’ availability and potential as a large-scale grid solution are still uncertain.

https://www.wsj.com/articles/old-electric-vehicle-batteries-are-getting-a-second-life-11655114401