Energy

Porsche explores EV battery recycling tech to power its new cars

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Porsche is keen to try its hand at recycling electric vehicle batteries to power new EVs
Porsche AG
Porsche is keen to try its hand at recycling electric vehicle batteries to power new EVs
Porsche AG
Aluminum, copper, and 'black mass' extracted from EV batteries
Jann Höfer / cylib / Porsche AG
The mixture retrieved from shredding used EV batteries
Jann Höfer / cylib / Porsche AG
The recycling process for high voltage batteries underway at Porsche's facility
Jann Höfer / cylib / Porsche AG
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It isn't easy to recycle high-voltage batteries from electric cars, but Porsche wants to take a stab at it. The plan: extract raw materials from old EV batteries to make fresh ones for its own electric models.

The company announced last week that it's embarked on a pilot project to figure out a recycling process that's suitable to scale up.

"With the help of innovative recycling processes, we strive to increase our independence from volatile and geopolitically unstable raw material markets," explained Porsche board member Barbara Frenkel.

The recycling process for high voltage batteries underway at Porsche's facility
Jann Höfer / cylib / Porsche AG

In the first of three phases, used electric vehicle (EV) batteries are shredded by powerful machines and processed into a granulate mixture called 'black mass.' This contains valuable materials including lithium, nickel, cobalt, and manganese.

The mixture retrieved from shredding used EV batteries
Jann Höfer / cylib / Porsche AG

Next, the black mass is separated into individual raw materials needed to produce new batteries. Finally, a set proportion of these materials that are of the right quality and purity will be used to make batteries that will go in new electric Porsches.

The German automaker says it's produced 65 tons of black mass thus far, and if it cracks this process end-to-end, this effort could advance its circular economy strategy. It will also help the company comply with European Union regulations which require car manufacturers to recover battery materials through recycling programs; in the case of lithium, there's a stipulated recovery target of 80% by 2031.

Aluminum, copper, and 'black mass' extracted from EV batteries
Jann Höfer / cylib / Porsche AG

Hopefully Porsche will be able to figure this out, and show the way for other brands to follow. It's said that while 95% of the materials in a lithium-ion battery can be retrieved, only 5% of EV batteries are being recycled in the first place. That sounds like an awful lot of money left on the table, and plenty of potential to reduce our need to mine for these valuable metals.

Source: Porsche

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3 comments
martinwinlow
What is this ridiculous obsession some people have with recycling EV batteries when anyone with any real and/or practical understanding of the technology knows that they have 100 times the value when re-purposed for stationary storage than when pulverised into ‘black-mass?!!
It really is bafflingly silly!
John_D
@martinwinlow you propose the reuse step in the circulair system. Thats a good option. But reused batteries will also reach end of usable life. Then the next step could be recycle and then this technology comes in.
michael_dowling
I was under the impression that all EV makers were planning to recycle Li-ion batteries already,but the number of used batteries with no further use even as stationary batteries was still quite small.