Dissolution of cathode active material of spent Li-ion batteries using tartaric acid and ascorbic acid mixture to recover Co

Nayaka, G.P.; Pai, K. Vasantakumar; Santhosh, G.; Manjanna, J.

doi:10.1016/j.hydromet.2016.01.026

Cited by 204 publications

(78 citation statements)

References 30 publications

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“…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. However, these acids could inevitably cause corrosion and liquor waste.…”

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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“…13 In general, pretreatment techniques such as dismantling, physical separation, and crushing are necessary for this process. 14,15 Alternatively, in the pyrometallurgical process, [16][17][18][19][20][21] which is simple and does not even require dismantling the spent LIBs, 22 metals such as Fe, Cu, Ni and Co in lithium batteries are converted into an alloy aer the organic materials are burnt away and then, they are further isolated through hydrometallurgical treatments. 23,24 Nevertheless, a big disadvantage of all pyrometallurgical recycling processes for spent LIBs is that lithium is hard to be reduced, 22 due to which lithium is le in the smelting slag phase 25 with the addition of slag-forming agents such as CaO and SiO 2 .…”

Section: Introductionmentioning

confidence: 99%

Aqueous leaching of lithium from simulated pyrometallurgical slag by sodium sulfate roasting

Guo

Chang

et al. 2019

RSC Adv.

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“…Hydrometallurgical processes are commonly used to separate metals from spent LIBs. In most recycling processes, all metals are first dissolved by mineral acids such as hydrochloric acid [5,6], nitric acid [7,8], and sulphuric acid [9,10], or organic acids [11][12][13] such as citric acid [11] and succinic acid [12]. The dissolved metals are then separated by chemical precipitation [14] and/or solvent extraction [15] to recover metal salts in pure form.…”

Section: Introductionmentioning

confidence: 99%

Hydrometallurgy process for the recovery of valuable metals from LiNi0.8Co0.15Al0.05O2 cathode materials

Fung

2019

SN Appl. Sci.

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A hydrometallury process was developed to recover the valuable metals from LiNi 0.8 Co 0.15 Al 0.05 O 2 cathode materials. In step 1, lithium and aluminum were selectively dissolved by oxalic acid. Utilizing Na 2 SO 3 as the reducing reagent, the reaction was significantly accelerated. The aluminum and lithium in the liquid stream were recovered by chemical precipitation in steps 2 and 3, using KOH and K 2 CO 3 as precipitants, respectively. The mixture of solid Ni and Co oxalates from step 1 was converted to sulfates through acid baking. After dissolution in water, cobalt was recovered as Co 2 O 3 after oxidation and nickel stayed in the solution as NiSO 4 .

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Dissolution of cathode active material of spent Li-ion batteries using tartaric acid and ascorbic acid mixture to recover Co

Cited by 204 publications

References 30 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

Aqueous leaching of lithium from simulated pyrometallurgical slag by sodium sulfate roasting

Hydrometallurgy process for the recovery of valuable metals from LiNi0.8Co0.15Al0.05O2 cathode materials

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