Статья

A sustainable δ-MnO₂ derived from Amazon rainforest Mn-ore tailings for applications in lithium-ion batteries

Lorenzo AngelettiDepartment of Chemistry, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, ItalyMarco AgostiniDepartment of Chemistry and Drug Technologies, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, ItalyBruno Apolo Miranda FigueiraPost-graduate Program of Science and Engineering of Materials, Federal University of Pará, Conjunto Cidade Nova 4, Travessa WE Vinte e Seis, 2 - Bairro Coqueiro – CEP, 67130-660 Ananindeua, Pará, BrazilAnderson Oliveira LatiniDepartment of Chemistry, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, ItalyElaine Cristina ParisNanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, São Carlos 13560-970, BrazilFrancesca De GiorgioInstitute of Nanostructured Materials, Italian National Research Council (ISMN–CNR), Via Piero Gobetti, 101, 40141 Bologna, ItalyTor P. SchultzHelmholtz Zentrum Berlin, Hahn-Meitner-Platz 1, 14109 Berlin, GermanyCorrado Di ConzoDepartment of Applied Science and Technology (DISAT), Polytechnic of Turin, Corso Castelfidardo 39, Turin, ItalyFrancesco MuraDepartment of Basic and Applied Science for Engineering, Sapienza University of Rome, Via Scarpa 14, 00161 Rome, ItalyMarco RossiDepartment of Basic and Applied Science for Engineering, Sapienza University of Rome, Via Scarpa 14, 00161 Rome, ItalyNeelam YadavDepartment of Chemistry, Humboldt University, 2.304, Brook-Taylor-Str. 2, Adlershof, 12489 Berlin, GermanyPhilipp AdelhelmDepartment of Chemistry, Humboldt University, 2.304, Brook-Taylor-Str. 2, Adlershof, 12489 Berlin, GermanyFranco MazzeiDepartment of Chemistry and Drug Technologies, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, ItalySergio BruttiDepartment of Chemistry, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, ItalySimone QuarantaInstitute for the Study of Nanostructured Materials, Italian National Research Council (ISMN–CNR), Strada Provinciale 35d 9, 00010 Rome, Italy

Sustainable materials and technologiesjournal2025en

ABI

Аннотация

The transition to net-zero emissions by 2050 necessitates the development of sustainable and efficient energy storage systems to complement the rise in renewable energy generation. Lithium-ion batteries (LiBs) are pivotal in this energy transformation, yet challenges remain in developing sustainable, high-performance materials. Manganese oxides (MnOₓ) are promising candidates for LiBs anodes due to their abundance and high theoretical capacity. However, the commercial synthesis of MnOₓ materials is resource-intensive, and the mining processes generate large amounts of environmentally hazardous tailings. In this study, we propose a novel method to recover manganese from mining tailings in the Brazilian Amazon and synthesize δ-MnO₂ as a high-capacity conversion anode material for LIBs. Using a green recovery method involving KOH and H₂O₂, we extracted potassium manganate (K₂MnO₄) from the tailings with a recovery efficiency of 90.3 %,and synthesized δ-MnO₂. The prepared material showed promising electrochemical properties, demonstrating its potential as a sustainable alternative to commercially available manganese oxides. This process not only offers a way to mitigate the environmental risks posed by manganese mining tailings but also provides an economically viable solution for producing high-performance battery materials. The developed methodology can be applied to other manganese-bearing residues and low-grade ores, contributing to the growing demand for battery-grade manganese in a sustainable and circular manner.

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Темы

Advancements in Battery Materials Extraction and Separation Processes Advanced Battery Technologies Research

Идентификаторы

DOI: 10.1016/j.susmat.2025.e01347

Цитирования и источники

Цитирований: 1 Использованных источников: 66

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