NanoBat - GHz nanoscale electrical and dielectric measurements of the solid-electrolyte interface and applications in the battery manufacturing line

Part of EU Open Research Repository
Published July 23, 2021 | Version v1
Journal article Open

Accelerated Electrochemical Investigation of Li Plating Efficiency as Key Parameter for Li Metal Batteries Utilizing a Scanning Droplet Cell

Authors/Creators

  • 1. Analytical Chemistry – Center for Electrochemical Sciences (CES); Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätstr. 150, D-44780 Bochum, Germany
  • 2. Department of Chemistry University of Burgos Plaza Misael Bañuelos s/n E-09200 Burgos, Spain

Description

The scanning droplet cell (SDC) allows for automatized electrochemical experiments leading to time-saving and reproducible experimental conditions. Its implementation for non-aqueous battery research is discussed, and the necessary adaptations to be operated inside an Ar-filled glovebox in complete absence of oxygen and moisture are described. Due to the importance of the use of Li metal electrodes for next-generation high-energy batteries, the complex multi-parameter optimisation of the Li plating/stripping  processes are investigated by means of the SDC. In particular, the influence of pulsed Li plating protocols on the coulombic  efficiency is evaluated. The results clearly show that fine tuning of the parameters of pulsed Li plating protocols, i. e. the relaxation period and Li plating duration, is required to improve Li plating efficiencies at high current densities.

Notes

E.V. acknowledges the financial support by the Spanish Government (MINECO) through the Research Challenges Programme (Grant RTI2018-099228-A-I00) and Ramón y Cajal award (RYC2018-026086-I) as well as the NanoBat project. NanoBat has received funding from the European Union's Horizon 2020 research and innovation programme under Grant agreement no. 861962. Open access funding enabled and organized by Projekt DEAL.

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DOI10.1002celc.202100733.pdf

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Additional details

Funding

European Commission
NanoBat - GHz nanoscale electrical and dielectric measurements of the solid-electrolyte interface and applications in the battery manufacturing line 861962