Chemical Sciences, Earth, Atmosphere & Environment Sciences


Recycling of Spent/Used/Discarded Lithium Iron Phosphate (LFP) Batteries for Recovery of Lithium, Iron, and Phosphorus


Chemical Sciences, Earth, Atmosphere & Environment Sciences

Focus Area:

Recycling of Batteries

Social Benefits:

Technology can recover lithium in the most desired marketable form, apart from iron phosphate. The derived values can be used for multiple applications apart from new battery manufacturing.

Developing Agency:

CSIR-National Metallurgical Laboratory (NML), Jharkhand

Technology Readiness Index:

Technology Development

Website Link :
Source (more info) :

Brief Description

Description :

With acid leaching using 10-20% solids, 98-100% Li, Fe and P could be extracted. The leach liquor was subjected to a selective sequential precipitation route to extract 90-95% pure lithium as lithium carbonate/lithium hydroxide and 98% pure iron phosphate. Purified graphite was a derivative in the process. Low-cost acid leaching and low-temperature process . High pure (>90-95%) lithium product(s) . High pure 98% iron phosphate . 85% pure graphite is a by-product . Easily replicable on a large scale . Closed-loop recycling of reagents . Low Incubation time and high returns

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