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Article Navigation >  Green Energy&Environment  > 2019  >  4(4): 375-381
Zhijia Du, Christopher J. Janke, Jianlin Li, David L. Wood. High–Speed electron beam curing of thick electrode for high energy density Li-ion batteries. Green Energy&Environment, 2019, 4(4): 375-381. doi: 10.1016/j.gee.2019.04.001
Citation: Zhijia Du, Christopher J. Janke, Jianlin Li, David L. Wood. High–Speed electron beam curing of thick electrode for high energy density Li-ion batteries. Green Energy&Environment, 2019, 4(4): 375-381. doi: 10.1016/j.gee.2019.04.001
shu

High–Speed electron beam curing of thick electrode for high energy density Li-ion batteries

doi: 10.1016/j.gee.2019.04.001
  • a.

    Energy and Transportation Science Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA

  • b.

    Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA

More Information
  • Corresponding author: E-mail address: duz1@ornl.gov (Zhijia Du)
  • Received date 23 January 2019, Accepted date 04 April 2019, RevRecd date 14 March 2019, Available online 09 April 2019, Publish date 31 October 2019,
    Abstract
  • Electron beam curing is demonstrated as a promising method for high speed, low cost and environmentally friendly battery electrode manufacturing. This work reports transfer of this process to pilot scale equipment and evaluation of electrochemical performance in prototype 1.5 Ah pouch cells. Thick LiNi0.5Mn0.3Co0.2O2 (NMC532) composite electrodes with an areal loading of 25 mg cm−2 (∼4 mAh cm−2) are successfully cured at a line speed of 500 feet per minute at 275 keV. Compared to the NMC532 cathode processed via a conventional coating method, the electron beam cured electrodes show higher capacity fade in the first 100 cycles, but similar fade rate afterwards. Further improvement strategies are proposed and discussed. This work demonstrates that electron beam curing is a promising method for manufacturing thick battery electrodes at high speeds and low capital/operation cost.

     

    • • Electron beam curing has advantages of low energy input, high speed production and compact footprint. • Its application in manufacturing composite Li-ion battery electrode is demonstrated. • 1.5 Ah pouch cell performance is reported from 500 feet-per-minute cured electrodes.
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