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Electrochemical Characterization of Recovered Lead from Lead-Acid Battery Recycling Using Wet/Melt Quenching Method
Delia Niculina Piscoiu1, Simona Rada1,2, Tudor Panfil Toader1,3
1Faculty of Materials and Environmental Engineering, Technical University of Cluj-Napoca, 400641 Cluj-Napoca, Romania.
Researchers electrochemically analyzed recycled lead materials to assess quality. Samples P2 and P3N showed superior electrochemical performance, indicating suitability for lead-acid battery applications due to efficient redox reactions.
Area of Science:
- Materials Science
- Electrochemistry
- Recycling Technology
Background:
- Assessing recycled lead material quality is crucial for sustainable battery production.
- Alternative recycling and evaluation methods are gaining importance.
- Electrochemical techniques offer insights into material performance.
Purpose of the Study:
- To electrochemically compare recycled lead material samples.
- To identify samples with optimal electrochemical parameters for lead-acid batteries.
- To evaluate the influence of dopants on electrochemical behavior.
Main Methods:
- X-ray diffraction analysis.
- Cyclic voltammetry (CV).
- Linear sweep voltammetry (LSV).
- Electrochemical impedance spectroscopy (EIS).
Main Results:
- Significant differences in electrochemical parameters were observed among samples.
- Samples P2 (CuO and Sb2O3 doped) and P3N (CaO/Fe2O3/Fe doped) demonstrated the most favorable electrochemical behavior.
- These samples exhibited high current response and minimal peak separation, indicative of efficient redox processes.
Conclusions:
- Recycled lead samples P2 and P3N are highly suitable for lead-acid battery applications.
- Electrochemical characterization effectively differentiates material performance.
- Doping with specific oxides and iron enhances electrochemical activity in recycled lead.
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