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

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

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 L...

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Main Authors: Zhijia Du, Christopher J. Janke, Jianlin Li, David L. Wood, III
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2019-10-01
Series:Green Energy & Environment
Online Access:http://www.sciencedirect.com/science/article/pii/S2468025719300160
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spelling doaj-a2f700097ee14fa686dfa8363c0922512021-03-02T09:15:41ZengKeAi Communications Co., Ltd.Green Energy & Environment2468-02572019-10-0144375381High–Speed electron beam curing of thick electrode for high energy density Li-ion batteriesZhijia Du0Christopher J. Janke1Jianlin Li2David L. Wood, III3Energy and Transportation Science Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA; Corresponding author.Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USAEnergy and Transportation Science Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USAEnergy and Transportation Science Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USAElectron 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. Keywords: Electron beam curing, Li-ion batteries, Thick electrodehttp://www.sciencedirect.com/science/article/pii/S2468025719300160
collection DOAJ
language English
format Article
sources DOAJ
author Zhijia Du
Christopher J. Janke
Jianlin Li
David L. Wood, III
spellingShingle Zhijia Du
Christopher J. Janke
Jianlin Li
David L. Wood, III
High–Speed electron beam curing of thick electrode for high energy density Li-ion batteries
Green Energy & Environment
author_facet Zhijia Du
Christopher J. Janke
Jianlin Li
David L. Wood, III
author_sort Zhijia Du
title High–Speed electron beam curing of thick electrode for high energy density Li-ion batteries
title_short High–Speed electron beam curing of thick electrode for high energy density Li-ion batteries
title_full High–Speed electron beam curing of thick electrode for high energy density Li-ion batteries
title_fullStr High–Speed electron beam curing of thick electrode for high energy density Li-ion batteries
title_full_unstemmed High–Speed electron beam curing of thick electrode for high energy density Li-ion batteries
title_sort high–speed electron beam curing of thick electrode for high energy density li-ion batteries
publisher KeAi Communications Co., Ltd.
series Green Energy & Environment
issn 2468-0257
publishDate 2019-10-01
description 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. Keywords: Electron beam curing, Li-ion batteries, Thick electrode
url http://www.sciencedirect.com/science/article/pii/S2468025719300160
work_keys_str_mv AT zhijiadu highspeedelectronbeamcuringofthickelectrodeforhighenergydensityliionbatteries
AT christopherjjanke highspeedelectronbeamcuringofthickelectrodeforhighenergydensityliionbatteries
AT jianlinli highspeedelectronbeamcuringofthickelectrodeforhighenergydensityliionbatteries
AT davidlwoodiii highspeedelectronbeamcuringofthickelectrodeforhighenergydensityliionbatteries
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