The global rush to recycled batteries is excellent news for automakers, however, there isn’t nearly enough scrap to feed them all.

The wave of new factories poses a significant risk for the recycling industry itself, Bloomberg reported on Thursday.

“Nobody is really looking at each other, and they seem to think there will be a lot of scrap and end-of-life batteries,” Hans Eric Melin, the founder of a UK-based consultancy Circular Energy Storage(CES), told Bloomberg.