Chemical Sciences, Earth, Atmosphere & Environment Sciences
Title: | Recovery of Lithium, Nickel, Cobalt, Manganese, and Graphite from Spent/Used/Discarded Lithium-ion Batteries of Mixed Chemistries |
Area: | Chemical Sciences, Earth, Atmosphere & Environment Sciences |
Focus Area: | Recovery of Elements |
Social Benefits: | Technology can extract critical elements like Lithium, Cobalt, and Nickel apart from manganese as salts in the most desired marketable form, with holistic recycling to result in reusable graphite |
Developing Agency: | CSIR-National Metallurgical Laboratory (NML), Jharkhand |
Technology Readiness Index: | Technology Development |
Email: | director@nmlindia.org |
| Website Link : | http://www.nmlindia.org |
| Source (more info) : | https://t.ly/l_sb |
Brief Description
Description : | With acid leaching using 20-30% solids, 94-96% Li, Co, Ni, and Mn, was extracted. The leach liquor was subjected to selective sequential multi-stage solvent extraction and precipitation route to extract >96-99.9% multiple variant pure salts of lithium, nickel, cobalt, and manganese. High pure graphite is a derivative product of the process. The process enables the recovery of acid and reagents.
Complete separation among Li, Ni, Co, and Mn
. Chemistry of Batteries Tested: LCO, LCA, LMO, NMC, NCA
96-99.9% pure multiple variant salts as products
. No impurity of Fe, Al, and Cu in any critical metal product Aluminum, Copper: 99% recovery
. Total recycling of reagents with 85% recovery of acid
. Residual carbon is converted to High Pure Graphite
. Easily replicable on a large scale
. Easily replicable on a large scale |
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