REWAS 2019 pp 421-435 | Cite as

Study on Vacuum Pyrolysis Process of Cathode Sheets from Spent Lithium-Ion Batteries

  • Weilun Li
  • Shenghai Yang
  • Nannan Liu
  • Yongming ChenEmail author
  • Yan Xi
  • Shuai Li
  • Yafei Jie
  • Fang Hu
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)


Spent lithium-ion batteries(LIBs) contain lots of valuable metals such as nickel, cobalt, and lithium, together with organic solvents, binders, and other toxic materials. Therefore, recycling of spent LIBs is of great importance for comprehensive resource recovery and environmental protection. In this study, vacuum pyrolysis was used to dispose of the cathode sheets of LIBs. The effects of pyrolysis temperature and vacuum degree on the separation of cathode sheets and phase transition of valuable metal of cathode active powder were investigated in detail. The results showed that the effective separation of active powder and Al foil can be achieved under the optimized conditions of pyrolysis temperature of 600 °C and a vacuum degree of 1000 Pa, and the recovery rate of cathode active powder reached 98.04%. In the temperature range of 450–650 °C, with the increase of pyrolysis temperature, the XRD patterns of the cathode active powder showed that the characteristic peak of Li[NixCoyMn1-x-y]O2 gradually weakened and eventually disappeared.


Vacuum pyrolysis Spent lithium ion batteries Cathode sheets Recovery rate Phase transition 



We are grateful to Anhui Province Research and Development Innovation Project for Automotive Power Battery Efficient Recycling System and the Research Fund Program of State Key Laboratory of Rare Metals Separation and Comprehensive Utilization (No. GK-201806) for providing financial support.


  1. 1.
    Sinolink Securities. Deep research report on power lithium battery recycling industry [EB/OL]. Shanghai, 01 July 2017.
  2. 2.
    Chen Y, Liu N, Hu F, Ye L, Xi Y, Yang S (2018) Thermal treatment and ammoniacal leaching for the recovery of valuable metals from spent lithium-ion batteries. Waste Manag 75:469CrossRefGoogle Scholar
  3. 3.
    Chagnes A, Pospiech B (2013) A brief review on hydrometallurgical technologies for recycling spent lithium-ion batteries. J Chem Technol Biotechnol 88(7):1191–1199CrossRefGoogle Scholar
  4. 4.
    Meshram P, Pandey BD, Mankhand TR (2015) Recovery of valuable metals from cathodic active material of spent lithium ion batteries: leaching and kinetic aspects. Waste Manag 45:306–313CrossRefGoogle Scholar
  5. 5.
    Li L, Dunn JB, Zhang XX, Gaines L, Chen RJ, Wu F et al (2013) Recovery of metals from spent lithium-ion batteries with organic acids as leaching reagents and environmental assessment. J Power Sources 233(233):180–189CrossRefGoogle Scholar
  6. 6.
    Jha MK, Kumari A, Jha AK, Kumar V, Hait J, Pandey BD (2013) Recovery of lithium and cobalt from waste lithium ion batteries of mobile phone. Waste Manag 33(9):1890–1897CrossRefGoogle Scholar
  7. 7.
    He J, Liu J, Li J, Lai Y, Wu X (2016) Enhanced ionic conductivity and electrochemical capacity of lithium ion battery based on PVDF-HFP/HDPE membrane. Mater Lett 170:126–129CrossRefGoogle Scholar
  8. 8.
    Zhu SG, Wen-Zhi HE, Guang-Ming LI et al (2012) Recovery of Co and Li from spent lithium-ion batteries by combination method of acid leaching and chemical precipitation. Trans Nonferrous Metals Soc China 22(9):2274–2281CrossRefGoogle Scholar
  9. 9.
    Li J, Zhao R, He X, Liu H (2009) Preparation of licoo 2, cathode materials from spent lithium–ion batteries. Ionics 15(1):111–113CrossRefGoogle Scholar
  10. 10.
    Chen Y, Tian Q, Chen B, Shi X, Liao T (2011) Preparation of lithium carbonate from spodumene by a sodium carbonate autoclave process. Hydrometallurgy 109(1):43–46CrossRefGoogle Scholar
  11. 11.
    Weng Y, Xu S, Huang G, Jiang C (2013) Synthesis and performance of Li[(Ni1/3Co1/3Mn1/3)1-xMgx]O2 prepared from spent lithium ion batteries. J Hazard Mater 246–247(4):163–172CrossRefGoogle Scholar
  12. 12.
    Shin SM, Kim NH, Sohn JS, Yang DH, Kim YH (2005) Development of a metal recovery process from Li-ion battery wastes. Hydrometallurgy 79(3):172–181CrossRefGoogle Scholar
  13. 13.
    Shuva MAH, Kurny A (2013) Hydrometallurgical recovery of value metals from spent lithium ion batteries. Am J Mater Eng Technol 1(1):8–12Google Scholar
  14. 14.
    Hanisch C, Haselrieder W, Kwade A (2011). Recovery of active materials from spent lithium-ion electrodes and electrode production rejects 85–89Google Scholar
  15. 15.
    Ferreira DA, Prados LMZ, Majuste D, Mansur MB (2009) Hydrometallurgical separation of aluminium, cobalt, copper and lithium from spent Li-ion batteries. J Power Sources 187(1):238–246CrossRefGoogle Scholar
  16. 16.
    Paulino JF, Busnardo NG, Afonso JC (2008) Recovery of valuable elements from spent Li-batteries. J Hazard Mater 150(3):843–849CrossRefGoogle Scholar
  17. 17.
    Zeng X, Li J (2014) Innovative application of ionic liquid to separate al and cathode materials from spent high-power lithium-ion batteries. J Hazard Mater 271(271):50–56CrossRefGoogle Scholar
  18. 18.
    Contestabile M, Panero S, Scrosati B (2001) A laboratory-scale lithium-ion battery recycling process. J Power Sources 92(1):65–69CrossRefGoogle Scholar
  19. 19.
    Chen L, Tang X, Zhang Y, Li L, Zeng Z, Zhang Y (2011) Process for the recovery of cobalt oxalate from spent lithium-ion batteries. Hydrometallurgy 108(1):80–86CrossRefGoogle Scholar
  20. 20.
    Sun L, Qiu K (2011) Vacuum pyrolysis and hydrometallurgical process for the recovery of valuable metals from spent lithium-ion batteries. J Hazard Mater 194(11):378–384CrossRefGoogle Scholar
  21. 21.
    Ravdel B, Abraham KM, Gitzendanner R, Dicarlo J, Lucht B, Campion C (2003) Thermal stability of lithium-ion battery electrolytes. J Power Sources 119:805–810CrossRefGoogle Scholar

Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  • Weilun Li
    • 1
  • Shenghai Yang
    • 1
  • Nannan Liu
    • 1
  • Yongming Chen
    • 1
    Email author
  • Yan Xi
    • 1
  • Shuai Li
    • 1
  • Yafei Jie
    • 1
  • Fang Hu
    • 2
  1. 1.School of Metallurgy and EnvironmentCentral South UniversityChangsha HunanChina
  2. 2.College of Chemistry and Chemical EngineeringCentral South UniversityChangsha HunanChina

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