What is lithium iron phosphate battery recycling?

Lithium iron phosphate battery recycling is enhanced by an eco-friendly N 2 H 4 ·H 2 O method, restoring Li + ions and reducing defects. Regenerated LiFePO 4 matches commercial quality, a cost-effective and eco-friendly solution. 1. Introduction

Is lithium iron phosphate a good cathode material?

You have full access to this open access article Lithium iron phosphate (LiFePO 4, LFP) has long been a key player in the lithium battery industry for its exceptional stability, safety, and cost-effectiveness as a cathode material.

What is the capacity of lithium iron phosphate pouch cells?

The present experiment employed lithium iron phosphate pouch cells featuring a nominal capacity of 30 Ah, procured from a recycling facility situated in Hefei City (electrochemical assessments disclosed an effective capacity amounting to only 70 % of the initial capacity).

How does lithium FEPO 4 regenerate?

The persistence of the olivine structure and the subsequent capacity reduction are attributable to the loss of active lithium and the migration of Fe 2+ ions towards vacant lithium sites (Sławiński et al., 2019). Hence, the regeneration of LiFePO 4 crucially hinges upon the reinstatement of active lithium and the rectification of anti-site defects.

Can pyroprocessing be used to recycle spent lithium iron phosphate (LFP) materials?

However, existing recovery methods for spent LIBs still suffer from complex processes and low processing efficiency. Herein, an effective pyroprocessing-based strategy was proposed to recycle spent lithium iron phosphate (LFP) materials, featuring full element regeneration and conversion of high-value products.

How to repurpose lithium and FEPO 4 from spent LFP cathode materials?

We demonstrated an electrolysis method for repurposing lithium and FePO 4 from spent LFP cathode materials in 0.5 M Na 2 CO 3 solution. Instead of using chemical agents, clean electrons are used as oxidizing agents to enable de-lithiation of LFP.