Naslov (eng)

Development of a new technology for obtaining ferric-phosphate for application in the production of lithium batteries

Naslov (srp)

Razvoj nove tehnologije dobijanja feri-fosfata za primenu u proizvodnji litijumskih baterija

Autor

Božić, Dragana
Conić, Vesna
Avramović, Ljiljana
Stevanović, Zoran
Marković, Radmila
Trifunović, Vanja
Janošević, Miloš

Opis (eng)

Abstract: A lithium-iron-phosphate battery, LiFePO4 battery or LFP battery, is a type of lithium-ion battery in which lithium-iron-phosphate is the cathode material. LiFePO4 has many advantages over other Li-ion battery designs and older lead-acid, LA batteries. These batteries are lighter in weight, safer to use, have better charge and discharge characteristics, and have a much longer lifespan. The paper presents the results of the hydrometallurgical process of obtaining ferric phosphate from the Jarosite waste sediment, previously leached with water. The solid residue was then treated with HCl under defined conditions in order to convert Fe into a soluble form. After precipitation of Fe(OH)3 and separation of the solid from the liquid phase, Fe(OH)3 was dissolved with H2SO4 to obtain a ferric sulfate solution. By reacting a ferric sulfate solution with phosphoric acid, and after pH correction with NH4OH, a ferric phosphate product was obtained whose quality meets the requirements of the standard for obtaining lithium batteries in relation to the content of Fe, P, Mg, Na, K, Cu, Mn, Co and Cr.

Opis (srp)

Sažetak: Litijum-gvožđe-fosfatna baterija, LiFePO4 baterija ili LFP baterija, je vrsta litijum-jonske baterije kod koje litijum-gvožđe-fosfat predstavlja katodni materijal. LiFePO4 ima mnogo prednosti u odnosu na druge dizajne litijumjonskih baterija i starije olovne, LA baterije. Ove baterije su manje težine, sigurne su za upotrebu, imaju bolje karakteristike punjenja i pražnjenja i imaju mnogo duži vek trajanja. U radu su prikazani rezultati hidrometalurškog procesa dobijanja feri fosfata iz otpadnog taloga jarosita, predhodno luženog vodom. Čvrsti ostatak je nakon toga tretiran sa HCl pri definisanim uslovima u cilju prevođena Fe u rastvornu formu. Nakon taloženja Fe(OH)3 i razdvajanja čvrste od tečne faze, Fe(OH)3 je rastvoren sa H2SO4 kako bi se dobio rastvor feri sulfata. Reakcijom rastvora feri sulfata sa fosfornom kiselinom, a nakon korekcije pH sa NH4OH, dobijen je proizvod ferifosfata čiji kvalitet zadovoljava zahteve standarda za dobijanje litijumskih baterija u odnosu na sadržaj Fe, P, Mg, Na, K, Cu, Mn, Co i Cr.

Jezik

srpski

Datum

2023

Licenca

© All rights reserved

Predmet

Ključne reči: hidrometalurgija, inovacija, ferifosfat, sinteza, litijumske baterije, jarozit.

Keywords: hydrometallurgy, innovation, ferric phosphate, synthesis, lithium batteries, jarosite.

Deo kolekcije (1)

o:179

Institut za rudarstvo i metalurgiju Bor