Automotive Engineering - May 2024 - 26
COVER STORY
A rendering of Aqua Metals' future Sierra ARC campus. The phased
development strategy will let Aqua Metals " rapidly expand our
commercial lithium battery recycling capacity while maintaining a higher
level of flexibility and resilience, " the company said.
The interior of Aqua Metals' Lithium AquaRefining Pilot facility.
material, and they want to get it back into circulation. "
In March 2024, Aqua Metals and 6K Energy announced
they would jointly develop a sustainable lithium battery circular
supply chain in North America. Regan said 6K's process
uses nitrates instead of sulfates as a feedstock. 6K doesn't
produce any sodium sulfate waste stream as part of its process,
whereas traditional cathode active material (CAM) manufacturing
produces around 26 tons of sodium sulfate for every
ton of CAM, Regan said. Traditional hydro-recycling also
produces about one-and-a-half to two tonnes of sodium sulfate
for every ton of black mass, he said.
" Traditional processes are extremely dirty when it comes to
waste streams, and also have a high carbon impact, " Regan
said. " We don't produce any sodium sulfate. Using renewable
electricity, we have an extremely low carbon footprint compared
to other technologies. If we're producing two tons of
sodium sulfate for every ton of black mass recycled, that has
to go into landfill or go into the ocean. When we're recycling
millions of lithium-ion batteries, EV batteries, millions of tons
eventually over the decades, that amount of waste stream is
just not viable. "
26 May 2024
AUTOMOTIVE ENGINEERING
BOTH IMAGES: AQUA METALS
http://info.hotims.com/86273-711
Automotive Engineering - May 2024
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