Roll-to-roll prelithiation of lithium-ion battery anodes by transfer printing

Cheng Yang, Huachun Ma, Ruichuan Yuan, Kuangyu Wang, Kai Liu, Yuanzheng Long, Fei Xu, Lei Li, Haitian Zhang, Yingchuan Zhang, Xiaoyan Li () and Hui Wu ()
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Cheng Yang: Tsinghua University
Huachun Ma: Tsinghua University
Ruichuan Yuan: Tsinghua University
Kuangyu Wang: Tsinghua University
Kai Liu: North China Electric Power University
Yuanzheng Long: Tsinghua University
Fei Xu: Do-Fluoride New Energy Technology Co. Ltd.
Lei Li: National Engineering Research Center of Electric Vehicles, Beijing Institute of Technology
Haitian Zhang: Tsinghua University
Yingchuan Zhang: Tsinghua University
Xiaoyan Li: Tsinghua University
Hui Wu: Tsinghua University

Nature Energy, 2023, vol. 8, issue 7, 703-713

Abstract: Abstract Prelithiation can boost the performance of lithium-ion batteries (LIBs). A cost-effective prelithiation strategy with high quality and high industrial compatibility is urgently required. Herein we developed a roll-to-roll electrodeposition and transfer-printing system for continuous prelithiation of LIB anodes. By roll-to-roll calendering, pre-manufactured anodes could be fully transfer-printed onto electrodeposited lithium metal. The interface separation and adhesion during transfer printing were related to interfacial shear and compressive stress, respectively. With the facile transfer-printing prelithiation, high initial Coulombic efficiencies of 99.99% and 99.05% were achieved in graphite and silicon/carbon composite electrode half cells, respectively. The initial Coulombic efficiencies and energy densities in full cells were observed to be significantly improved with the prelithiated electrodes. The roll-to-roll transfer printing provides a high-performance, controllable, scalable and industry-adaptable prelithiation in LIBs.

Date: 2023
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DOI: 10.1038/s41560-023-01272-1

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