Didem Ketenoglu, Georg Spiekermann, Manuel Harder, Erdinc Oz, Cevriye Koz, Mehmet C. Yagci, Eda Yilmaz, Zhong Yin, Christoph J. Sahle, Blanka Detlefs, Hasan Yavas
- The effects of varying LiPF6 salt concentration and the presence of lithium bis(oxalate)borate additive on the electronic structure of commonly used lithium-ion battery electrolyte solvents (ethylene carbonate-dimethyl carbonate and propylene carbonate) have been investigated. X-ray Raman scattering spectroscopy (a non-resonant inelastic X-ray scattering method) was utilized together with a closed-circle flow cell. Carbon and oxygen K-edges provide characteristic information on the electronic structure of the electrolyte solutions, which are sensitive to local chemistry. Higher Li+ ion concentration in the solvent manifests itself as a blue-shift of both the pi* feature in the carbon edge and the carbonyl pi* feature in the oxygen edge. While these oxygen K-edge results agree with previous soft X-ray absorption studies on LiBF4 salt concentration in propylene carbonate, carbon K-edge spectra reveal a shift in energy, which can be explained with differing ionic conductivities of the electrolyte solutions.
MetadatenAuthor details: | Didem KetenogluORCiD, Georg SpiekermannORCiDGND, Manuel Harder, Erdinc OzORCiD, Cevriye Koz, Mehmet C. YagciORCiD, Eda Yilmaz, Zhong YinORCiD, Christoph J. SahleORCiD, Blanka DetlefsORCiD, Hasan YavasORCiD |
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DOI: | https://doi.org/10.1107/S1600577518001662 |
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ISSN: | 0909-0495 |
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ISSN: | 1600-5775 |
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Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/29488934 |
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Title of parent work (English): | Journal of synchrotron radiation |
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Publisher: | International Union of Crystallography |
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Place of publishing: | Chester |
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Publication type: | Article |
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Language: | English |
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Date of first publication: | 2018/01/28 |
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Publication year: | 2018 |
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Release date: | 2022/01/17 |
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Tag: | C and O K-edge spectra; lithium-ion battery electrolyte; non-resonant inelastic X-ray scattering |
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Volume: | 25 |
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Number of pages: | 6 |
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First page: | 537 |
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Last Page: | 542 |
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Funding institution: | Turkiye Atom Enerjisi Kurumu (SESAME grant); Turkiye Bilimsel ve Teknolojik Arastirma KurumuTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [BIDEB-2219]; TUBITAK projectTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [115M375]; Deutsche ForschungsgemeinschaftGerman Research Foundation (DFG) [SFB 755, SFB 1073]; Ankara University Institute of Accelerator Technologies (TARLA project) [2006K-120470] |
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Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Geowissenschaften |
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DDC classification: | 5 Naturwissenschaften und Mathematik / 55 Geowissenschaften, Geologie / 550 Geowissenschaften |
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