Print Email Facebook Twitter Operando monitoring the lithium spatial distribution of lithium metal anodes Title Operando monitoring the lithium spatial distribution of lithium metal anodes Author Lv, Shasha (Tsinghua University; Student TU Delft) Verhallen, T.W. (TU Delft RST/Fundamental Aspects of Materials and Energy) Vasileiadis, A. (TU Delft RST/Fundamental Aspects of Materials and Energy) Ooms, F.G.B. (TU Delft RST/Fundamental Aspects of Materials and Energy) Xu, Y. (TU Delft ChemE/Materials for Energy Conversion and Storage) Li, Z. (TU Delft RST/Fundamental Aspects of Materials and Energy) Li, Zhengcao (Tsinghua University) Wagemaker, M. (TU Delft RST/Fundamental Aspects of Materials and Energy) Date 2018 Abstract Electrical mobility demands an increase of battery energy density beyond current lithium-ion technology. A crucial bottleneck is the development of safe and reversible lithium-metal anodes, which is challenged by short circuits caused by lithium-metal dendrites and a short cycle life owing to the reactivity with electrolytes. The evolution of the lithium-metal-film morphology is relatively poorly understood because it is difficult to monitor lithium, in particular during battery operation. Here we employ operando neutron depth profiling as a noninvasive and versatile technique, complementary to microscopic techniques, providing the spatial distribution/density of lithium during plating and stripping. The evolution of the lithium-metal-density-profile is shown to depend on the current density, electrolyte composition and cycling history, and allows monitoring the amount and distribution of inactive lithium over cycling. A small amount of reversible lithium uptake in the copper current collector during plating and stripping is revealed, providing insights towards improved lithium-metal anodes. To reference this document use: http://resolver.tudelft.nl/uuid:b445a0eb-9076-4f74-a733-5b21cda4c684 DOI https://doi.org/10.1038/s41467-018-04394-3 ISSN 2041-1723 Source Nature Communications, 9 (1) Bibliographical note doi erratum 10.1038/s41467-018-95212-6, Scopus http://www.scopus.com/inward/record.url?scp=85050552108&partnerID=8YFLogxK Part of collection Institutional Repository Document type journal article Rights © 2018 Shasha Lv, T.W. Verhallen, A. Vasileiadis, F.G.B. Ooms, Y. Xu, Z. Li, Zhengcao Li, M. Wagemaker Files PDF s41467_018_04394_3.pdf 4.13 MB Close viewer /islandora/object/uuid:b445a0eb-9076-4f74-a733-5b21cda4c684/datastream/OBJ/view