7Li NMR studies of lithium ion dynamics in polymer-derived silicon oxycarbide ceramics
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- 作者：Michael Haaksa ; Jan Kasparb ; Anjuli Franza ; Magdalena Graczyk-Zajacb ; Ralf Riedelb ; Michael Vogela ; michael.vogel@physik.tu-darmstadt.de" class="auth_mail" title="E-mail the corresponding author
- 关键词：7Li NMR ; Lithium ion dynamics ; Lithium-ion battery ; Anode material ; Silicon oxycarbide ceramic
- 刊名：Solid State Ionics
- 出版年：2016
- 出版时间：April 2016
- 年：2016
- 卷：287
- 期：Complete
- 页码：28-35
- 全文大小：2496 K
文摘
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7Li NMR yields microscopic insights into lithium ion dynamics in anode materials.
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Determination of correlation times in very broad dynamic and temperature ranges
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Lithium ionic jumps are governed by very broad distributions of correlation times.
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Faster lithium ion dynamics in lithiated than in delithiated compounds
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Prepared ceramics undergo irreversible changes when heating to 400 K.