Value-creating upcycling of retired electric vehicle battery cathodes

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

4 Scopus Citations
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Author(s)

  • Guannan Qian
  • Zhiyuan Li
  • Yong Wang
  • Xianyu Xie
  • Yushi He
  • Yanhua Zhu
  • Sijie Xie
  • Zhenjie Cheng
  • Haiying Che
  • Yanbin Shen
  • Liwei Chen
  • Xiaojing Huang
  • Piero Pianetta
  • Zi-Feng Ma
  • Yijin Liu
  • Linsen Li

Detail(s)

Original languageEnglish
Article number100741
Journal / PublicationCell Reports Physical Science
Volume3
Issue number2
Online published27 Jan 2022
Publication statusPublished - 16 Feb 2022
Externally publishedYes

Link(s)

Abstract

The electrification revolution in the automobile and other industries demands annual production capacity of batteries of at least 102 GWh, which presents a twofold challenge: supply of key materials such as cobalt and nickel and recycling when batteries are retired from use. Pyrometallurgical and hydrometallurgical recycling are currently used in industry but suffer from complexity, high costs, and secondary pollution. Here we report a molten-salt-based method for direct recycling (MSDR) that is environmentally benign and creates value on the basis of a techno-economic analysis using real-world data and price information. We also experimentally demonstrate the feasibility of MSDR by upcycling a low-nickel polycrystalline LiNi0.5Mn0.3Co0.2O2 (NMC) cathode material into Ni-rich (Ni > 65%) single-crystal NMCs with increased energy density (>10% increase) and outstanding electrochemical performance (>94% capacity retention after 500 cycles). This work may open opportunities for closed-loop recycling of electric vehicle batteries and manufacturing of next-generation NMC cathode materials.

Research Area(s)

  • cathode, high-energy density, lithium-ion battery, molten salts, single-crystal NMC, upcycling

Citation Format(s)

Value-creating upcycling of retired electric vehicle battery cathodes. / Qian, Guannan; Li, Zhiyuan; Wang, Yong; Xie, Xianyu; He, Yushi; Li, Jizhou; Zhu, Yanhua; Xie, Sijie; Cheng, Zhenjie; Che, Haiying; Shen, Yanbin; Chen, Liwei; Huang, Xiaojing; Pianetta, Piero; Ma, Zi-Feng; Liu, Yijin; Li, Linsen.

In: Cell Reports Physical Science, Vol. 3, No. 2, 100741, 16.02.2022.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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