Are there any existing procedures for the recycling of electric vehicle car batteries, and if so what are they? In particular I'm interested in those used in the Volkswagen E-Golf, though general information is appreciated too.
Li-Ion batteries are worth recycling just for the lithium in them. This material can be re-refined, and made into new batteries. In this use they should show similar cost savings to recycled vs new aluminum.
There is also the prospect of repurposing a worn battery for stationary use. E.g. It stores 30 kWh in your car for 3 years, then stores 10 kWh in your house for the next 3-10 years. One source I read proposed that the used battery market would help older EV's hold value.