4.5 Article

Reactions of garnet-based solid-state lithium electrolytes with water - A depth-resolved study

Journal

SOLID STATE IONICS
Volume 320, Issue -, Pages 259-265

Publisher

ELSEVIER
DOI: 10.1016/j.ssi.2018.03.004

Keywords

Battery; Thin film; Secondary ion mass spectrometry; Nuclear reaction analysis; Raman microscopy

Funding

  1. Helmholtz Gemeinschaft Deutscher Forschungszentren (PoF3-SCI) e.V. under grant Speicher und Vernetzte Infrastrukturen
  2. Helmholtz Gemeinschaft Deutscher Forschungszentren (PoF3-SCI) e.V. under Helmholtz Institute Munster (HI MS) [PoF3-SCI]
  3. Bundesministerium fur Bildung und Forschung (Federal ministry of education and research), Germany [13N9973, 03X4634C, 03SF0477A]

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Garnet Li6.4La3Zr1.6Ta0.4O12 thin films prepared by magnetron sputtering were analysed by secondary ion mass spectrometry, nuclear reaction analysis and Rutherford backscattering to identify, localize and quantify the reactions associated with the presence of low amounts of water and carbon dioxide. Samples in a pristine state and after storage in an Argon-filled glove box for months were compared. Both, lithium hydroxide and lithium carbonate were detected, with carbon-containing species and hydrogen-containing having surprisingly different depth profiles.

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