2014-Sustainable Industrial Processing Summit
SIPS 2014 Volume 4: Recycling & Secondary Battery
| Editors: | Kongoli F |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2014 |
| Pages: | 498 pages |
| ISBN: | 978-1-987820-06-5 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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RECYCLED LEAD ACID PASTE AS AN ANODE MATERIALS FOR Li-Ion BATTERIES
M. Seref Sonmez1; Bora Derin1; Ozgul Keles1; Sebahattin Gurmen1;1ISTANBUL TECHNICAL UNIVERSITY, Istanbul, Turkey;
Type of Paper: Invited
Id Paper: 185
Topic: 12
Abstract:
In this study, lead acid battery paste was recycled to be used as anode for lithium ion batteries (LIB). First, lead-acid battery paste was leached with citrus acids to transform into lead citrate following calcination-combustion reaction. Then, the product was used as an electrode material for lithium ion batteries. Used lead acid battery pastes contain typically 55-60 % PbSO4, 20-25 % PbO and 1-5 % PbO2. The reaction among PbO and C6H8O7.H2O, PbO2, the mixture of C6H8O7.H2O and H2O2, PbSO4 and the mixture of C6H5Na3O7.H2O and C6H8O7.H2O caused lead citrate to form. Reaction time, temperature and concentration were important parameters. In leaching step, the effects of poly-hydroxyl alcohol addition as grain refiner was investigated to synthesize lead based powder having submicron particles after the combustion-calcination process. Chemical and morphological characterization of battery paste and products were made. Galvanostatic half-cell electrochemical measurements conducted between 0.2-1.2V using lithium counter electrode was conducted to understand the electrochemical behavior of the anodes produced.