Role of iron impurity in hydrometallurgical recovery process of spent lead-acid battery: Phase transformation of positive material made from recovered leady oxide

Wenhao Yu; Jiakuan Yang; Sha Liang; Peiyuan Zhang; Mingyang Li; Junxiong Wang; Keke Xiao; Huijie Hou; Jingping Hu; Bingchuan Liu; R. Vasant Kumar

doi:10.1149/2.0061910jes

Role of iron impurity in hydrometallurgical recovery process of spent lead-acid battery: Phase transformation of positive material made from recovered leady oxide

Wenhao Yu, Jiakuan Yang^*, Sha Liang, Peiyuan Zhang, Mingyang Li, Junxiong Wang, Keke Xiao, Huijie Hou, Jingping Hu, Bingchuan Liu, R. Vasant Kumar

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Leady oxide samples with various Fe contents were recovered from simulated spent lead paste with the addition of various dosages of iron oxides as simulated Fe impurities via hydrometallurgical process with sodium citrate-acetic acid solution. More than 75 wt% of the Fe element in simulated spent lead paste remained in the recovered leady oxide. The recovered leady oxide samples were used to prepare positive plates in order to illuminate the effect of Fe impurities on the phase composition of positive material. When the Fe content in recovered leady oxide was > 223 mg kg^–1, the generation of 4PbO·PbSO₄ (4BS) during curing procedure was inhibited. The specific surface area, α-PbO₂ content, and hydrated PbO₂ content of positive active mass (PAM) after formation procedure decreased with the increase of Fe content. As a result, larger PbSO₄ crystals formed in Fe-containing PAMs after cell discharge, which hindered the transfer of H₂SO₄ electrolyte and destroyed the interconnected PbO₂ skeleton. The negative effect of Fe impurities on cell cycle performance was observed when the PAM was manufactured from the leady oxide containing only 49 mg kg^–1 Fe element, with the cell capacity decreased from 2.2 to 1.0 Ah after only 230 charge-discharge cycles.

Original language	English
Pages (from-to)	A1715-A1724
Journal	Journal of the Electrochemical Society
Volume	166
Issue number	10
DOIs	https://doi.org/10.1149/2.0061910jes
State	Published - 2019
Externally published	Yes

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Yu, W., Yang, J., Liang, S., Zhang, P., Li, M., Wang, J., Xiao, K., Hou, H., Hu, J., Liu, B., & Kumar, R. V. (2019). Role of iron impurity in hydrometallurgical recovery process of spent lead-acid battery: Phase transformation of positive material made from recovered leady oxide. Journal of the Electrochemical Society, 166(10), A1715-A1724. https://doi.org/10.1149/2.0061910jes

@article{6c7b4998d5ef41b8b7f93cdde2c57cbc,

title = "Role of iron impurity in hydrometallurgical recovery process of spent lead-acid battery: Phase transformation of positive material made from recovered leady oxide",

abstract = "Leady oxide samples with various Fe contents were recovered from simulated spent lead paste with the addition of various dosages of iron oxides as simulated Fe impurities via hydrometallurgical process with sodium citrate-acetic acid solution. More than 75 wt% of the Fe element in simulated spent lead paste remained in the recovered leady oxide. The recovered leady oxide samples were used to prepare positive plates in order to illuminate the effect of Fe impurities on the phase composition of positive material. When the Fe content in recovered leady oxide was > 223 mg kg–1, the generation of 4PbO·PbSO4 (4BS) during curing procedure was inhibited. The specific surface area, α-PbO2 content, and hydrated PbO2 content of positive active mass (PAM) after formation procedure decreased with the increase of Fe content. As a result, larger PbSO4 crystals formed in Fe-containing PAMs after cell discharge, which hindered the transfer of H2SO4 electrolyte and destroyed the interconnected PbO2 skeleton. The negative effect of Fe impurities on cell cycle performance was observed when the PAM was manufactured from the leady oxide containing only 49 mg kg–1 Fe element, with the cell capacity decreased from 2.2 to 1.0 Ah after only 230 charge-discharge cycles.",

author = "Wenhao Yu and Jiakuan Yang and Sha Liang and Peiyuan Zhang and Mingyang Li and Junxiong Wang and Keke Xiao and Huijie Hou and Jingping Hu and Bingchuan Liu and Kumar, {R. Vasant}",

note = "Publisher Copyright: {\textcopyright} 2019 The Electrochemical Society.",

year = "2019",

doi = "10.1149/2.0061910jes",

language = "英语",

volume = "166",

pages = "A1715--A1724",

journal = "Journal of the Electrochemical Society",

issn = "0013-4651",

publisher = "Electrochemical Society, Inc.",

number = "10",

}

Yu, W, Yang, J, Liang, S, Zhang, P, Li, M, Wang, J, Xiao, K, Hou, H, Hu, J, Liu, B & Kumar, RV 2019, 'Role of iron impurity in hydrometallurgical recovery process of spent lead-acid battery: Phase transformation of positive material made from recovered leady oxide', Journal of the Electrochemical Society, vol. 166, no. 10, pp. A1715-A1724. https://doi.org/10.1149/2.0061910jes

TY - JOUR

T1 - Role of iron impurity in hydrometallurgical recovery process of spent lead-acid battery

T2 - Phase transformation of positive material made from recovered leady oxide

AU - Yu, Wenhao

AU - Yang, Jiakuan

AU - Liang, Sha

AU - Zhang, Peiyuan

AU - Li, Mingyang

AU - Wang, Junxiong

AU - Xiao, Keke

AU - Hou, Huijie

AU - Hu, Jingping

AU - Liu, Bingchuan

AU - Kumar, R. Vasant

PY - 2019

Y1 - 2019

N2 - Leady oxide samples with various Fe contents were recovered from simulated spent lead paste with the addition of various dosages of iron oxides as simulated Fe impurities via hydrometallurgical process with sodium citrate-acetic acid solution. More than 75 wt% of the Fe element in simulated spent lead paste remained in the recovered leady oxide. The recovered leady oxide samples were used to prepare positive plates in order to illuminate the effect of Fe impurities on the phase composition of positive material. When the Fe content in recovered leady oxide was > 223 mg kg–1, the generation of 4PbO·PbSO4 (4BS) during curing procedure was inhibited. The specific surface area, α-PbO2 content, and hydrated PbO2 content of positive active mass (PAM) after formation procedure decreased with the increase of Fe content. As a result, larger PbSO4 crystals formed in Fe-containing PAMs after cell discharge, which hindered the transfer of H2SO4 electrolyte and destroyed the interconnected PbO2 skeleton. The negative effect of Fe impurities on cell cycle performance was observed when the PAM was manufactured from the leady oxide containing only 49 mg kg–1 Fe element, with the cell capacity decreased from 2.2 to 1.0 Ah after only 230 charge-discharge cycles.

AB - Leady oxide samples with various Fe contents were recovered from simulated spent lead paste with the addition of various dosages of iron oxides as simulated Fe impurities via hydrometallurgical process with sodium citrate-acetic acid solution. More than 75 wt% of the Fe element in simulated spent lead paste remained in the recovered leady oxide. The recovered leady oxide samples were used to prepare positive plates in order to illuminate the effect of Fe impurities on the phase composition of positive material. When the Fe content in recovered leady oxide was > 223 mg kg–1, the generation of 4PbO·PbSO4 (4BS) during curing procedure was inhibited. The specific surface area, α-PbO2 content, and hydrated PbO2 content of positive active mass (PAM) after formation procedure decreased with the increase of Fe content. As a result, larger PbSO4 crystals formed in Fe-containing PAMs after cell discharge, which hindered the transfer of H2SO4 electrolyte and destroyed the interconnected PbO2 skeleton. The negative effect of Fe impurities on cell cycle performance was observed when the PAM was manufactured from the leady oxide containing only 49 mg kg–1 Fe element, with the cell capacity decreased from 2.2 to 1.0 Ah after only 230 charge-discharge cycles.

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U2 - 10.1149/2.0061910jes

DO - 10.1149/2.0061910jes

M3 - 文章

AN - SCOPUS:85072135894

SN - 0013-4651

VL - 166

SP - A1715-A1724

JO - Journal of the Electrochemical Society

JF - Journal of the Electrochemical Society

IS - 10

ER -

Role of iron impurity in hydrometallurgical recovery process of spent lead-acid battery: Phase transformation of positive material made from recovered leady oxide

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