Direct 7Li NMR spectral evidence for different Li+ local environments in a polyether poly(urethane urea) electrolyte

Hsing Lung Wang; Hsien Ming Kao; Ten-Chin Wen

doi:10.1021/ma000963i

Direct ⁷Li NMR spectral evidence for different Li⁺ local environments in a polyether poly(urethane urea) electrolyte

Hsing Lung Wang, Hsien Ming Kao, Ten-Chin Wen

Department of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

31 Citations (Scopus)

Abstract

The lithium cation environments need to be characterized as accurately as possible, particularly in the microseparated phases of polyether polyurethane urea (PEUU) electrolytes, since it is the source that supplies the high ionic conductivity. The Li⁺ magic angle spinning (MAS) nuclear magnetic resonance (NMR) spectra with high-power proton decoupling provides an extremely effective and unique method for probing different local environments of lithium cations in PEUU-based electrolytes. The method allows the properties of each of the different lithium cations to be observed directly and with high spectral resolution.

Original language	English
Pages (from-to)	6910-6912
Number of pages	3
Journal	Macromolecules
Volume	33
Issue number	19
DOIs	https://doi.org/10.1021/ma000963i
Publication status	Published - 2000 Sept 19

All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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10.1021/ma000963i

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abstract = "The lithium cation environments need to be characterized as accurately as possible, particularly in the microseparated phases of polyether polyurethane urea (PEUU) electrolytes, since it is the source that supplies the high ionic conductivity. The Li+ magic angle spinning (MAS) nuclear magnetic resonance (NMR) spectra with high-power proton decoupling provides an extremely effective and unique method for probing different local environments of lithium cations in PEUU-based electrolytes. The method allows the properties of each of the different lithium cations to be observed directly and with high spectral resolution.",

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AB - The lithium cation environments need to be characterized as accurately as possible, particularly in the microseparated phases of polyether polyurethane urea (PEUU) electrolytes, since it is the source that supplies the high ionic conductivity. The Li+ magic angle spinning (MAS) nuclear magnetic resonance (NMR) spectra with high-power proton decoupling provides an extremely effective and unique method for probing different local environments of lithium cations in PEUU-based electrolytes. The method allows the properties of each of the different lithium cations to be observed directly and with high spectral resolution.

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Direct ⁷Li NMR spectral evidence for different Li⁺ local environments in a polyether poly(urethane urea) electrolyte

Abstract

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