A novel recovery process of metal values from the cathode active materials of the lithium-ion secondary batteries

Wang, Rong‐Chi; Lin, Yu‐Chuan; Wu, She‐Huang

doi:10.1016/j.hydromet.2009.08.005

Cited by 383 publications

(152 citation statements)

References 19 publications

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“…e l s e v i e r . c o m / l o c a t e / w a s m a n et al., 2008;Sun and Qiu, 2011) and the separation of Co and Li (Joulié et al, 2014;Provazi et al, 2011;Wang et al, 2009). Among these studies, leaching of Co and Li from LiCoO 2 powder using hydrometallurgical techniques had attracted wide attention, besides inorganic acids Jha et al, 2013), organic oxalate (Sun and Qiu, 2012), organic citric acid (Li et al, 2010a), succinic acid , oxalic acid (Zeng et al, 2015), tartaric acid and ascorbic acid (Nayaka et al, 2016) were used as leaching agents with satisfactory achievements.…”

Section: Contents Lists Available At Sciencedirectmentioning

confidence: 99%

An environmental benign process for cobalt and lithium recovery from spent lithium-ion batteries by mechanochemical approach

2016

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a b s t r a c tIn the current study, an environmental benign process namely mechanochemical approach was developed for cobalt and lithium recovery from spent lithium-ion batteries (LIBs). The main merit of the process was that neither corrosive acid nor strong oxidant was applied. In the proposed process, lithium cobalt oxide (obtained from spent LIBs) was firstly co-grinded with various additives in a hermetic ball milling system, then Co and Li could be easily recovered by a water leaching procedure. It was found that EDTA was the most suitable co-grinding reagent, and 98% of Co and 99% of Li were respectively recovered under optimum conditions: LiCoO 2 to EDTA mass ratio 1:4, milling time 4 h, rotary speed 600 r/min and ball-to-powder mass ratio 80:1, respectively. Mechanisms study implied that lone pair electrons provided by two nitrogen atoms and four hydroxyl oxygen atoms of EDTA could enter the empty orbit of Co and Li by solid-solid reaction, thus forming stable and water-soluble metal chelates Li-EDTA and Co-EDTA. Moreover, the separation of Co and Li could be achieved through a chemical precipitation approach. This study provides a high efficiency and environmentally friendly process for Co and Li recovery from spent LIBs.

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Section: Contents Lists Available At Sciencedirectmentioning

confidence: 99%

An environmental benign process for cobalt and lithium recovery from spent lithium-ion batteries by mechanochemical approach

2016

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“…The re-synthesis of electrode active materials or the synthesis of other reactive materials from the spent lithium-ion batteries has been also studied through many investigations. [5][6][7][8] Although there has been a great deal of research achievements developed for the recycling technologies of lithium-ion batteries, most of them are still based on hydrometallurgical chemistry and have been developed with industrial process in mind.…”

Section: Introductionmentioning

confidence: 99%

Re-synthesis and Electrochemical Characteristics of LiFePO₄Cathode Materials Recycled from Scrap Electrodes

Kim¹,

Shin²

2013

Bulletin of the Korean Chemical Society

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This paper describes an environmentally friendly process for the recovery of LiFePO 4 cathode materials from scrap electrodes by a simple thermal treatment method. The active materials were easily separated from the aluminum substrate foil and polymeric binders were also decomposed at different temperatures (400 o C, 500 o C, 600 o C) for 30 min under nitrogen gas flow. The samples were characterized by X-ray diffraction (XRD), scanning electronic microscopy (SEM), Raman spectroscopy, Thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC). The electrochemical properties of the recycled LiFePO 4 cathode were evaluated by galvanostatic charge and discharge modes. The specific charge/discharge capacities of the recycled LiFePO 4 cathode were similar to those of the original LiFePO 4 cathode. The LiFePO 4 cathode material recovered at 500 o C exhibits a somewhat higher capacity than those of other recovered materials at high current rates. The recycled LiFePO 4 cathode also showed a good cycling performance.

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“…Most commonly, separator are made of polytetrafluoroethylene (PTFE) and other inert polymer membranes with defined porosity and ionic conductivity. Commonly used electrolyte for LIBs include propylene carbonate and mixtures of these solvents [9][10][11]. Battery charging and discharging occur through the migration of lithium ions between the cathodes and anodes and the exchange of electrons through doping and dedoping.…”

Section: Methodsmentioning

confidence: 99%

Recovery Of Electrodic Powder From Spent Lithium Ion Batteries (LIBs)

Shin¹,

Jung²,

Lee³

et al. 2015

Archives of Metallurgy and Materials

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ODZYSK PROSZKU ELEKTRODOWEGO Z ZUŻYTYCH AKUMULATORÓW LITOWO-JONOWYCHThis study was focused on recycling process newly proposed to recover electrodic powder enriched in cobalt (Co) and lithium (Li) from spent lithium ion battery. In addition, this new process was designed to prevent explosion of batteries during thermal treatment under inert atmosphere. Spent lithium ion batteries (LIBs) were heated over the range of 300 • C to 600 • C for 2 hours and each component was completely separated inside reactor after experiment. Electrodic powder was successfully recovered from bulk components containing several pieces of metals through sieving operation. The electrodic powder obtained was examined by X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS), and atomic absorption spectroscopy (AA) and furthermore image of the powder was taken by scanning electron microscopy (SEM). It was finally found that cobalt and lithium were mainly recovered to about 49 wt.% and 4 wt.% in electrodic powder, respectively.

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A novel recovery process of metal values from the cathode active materials of the lithium-ion secondary batteries

Cited by 383 publications

References 19 publications

An environmental benign process for cobalt and lithium recovery from spent lithium-ion batteries by mechanochemical approach

An environmental benign process for cobalt and lithium recovery from spent lithium-ion batteries by mechanochemical approach

Re-synthesis and Electrochemical Characteristics of LiFePO₄Cathode Materials Recycled from Scrap Electrodes

Recovery Of Electrodic Powder From Spent Lithium Ion Batteries (LIBs)

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A novel recovery process of metal values from the cathode active materials of the lithium-ion secondary batteries

Cited by 383 publications

References 19 publications

An environmental benign process for cobalt and lithium recovery from spent lithium-ion batteries by mechanochemical approach

An environmental benign process for cobalt and lithium recovery from spent lithium-ion batteries by mechanochemical approach

Re-synthesis and Electrochemical Characteristics of LiFePO4Cathode Materials Recycled from Scrap Electrodes

Recovery Of Electrodic Powder From Spent Lithium Ion Batteries (LIBs)

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Re-synthesis and Electrochemical Characteristics of LiFePO₄Cathode Materials Recycled from Scrap Electrodes