固体核磁共振7Li SAE技术揭示晶体晶格中的锂离子迁移

doi:10.11938/cjmr20192756

波谱学杂志 ›› 2020, Vol. 37 ›› Issue (1): 61-66.doi: 10.11938/cjmr20192756

固体核磁共振⁷Li SAE技术揭示晶体晶格中的锂离子迁移

张炜, 刘清华, 王建印, 陈群, 胡炳文

上海市磁共振重点实验室&物理与材料科学学院, 华东师范大学, 上海 200062

收稿日期:2019-04-28 出版日期:2020-03-05 发布日期:2019-07-23
通讯作者: 陈群,Tel:021-62233633,E-mail:qchen@ecnu.edu.cn;胡炳文,Tel:021-62233633,E-mail:bwhu@phy.ecnu.edu.cn. E-mail:qchen@ecnu.edu.cn;bwhu@phy.ecnu.edu.cn
基金资助:
the National Natural Science Foundation of China (21872055).

Revealing of Li-Ion Transportation in Crystal Lattices by ⁷Li SAE in Solid-State NMR

ZHANG Wei, LIU Qing-hua, WANG Jian-yin, CHEN Qun, HU Bing-wen

Shanghai Key Laboratory of Magnetic Resonance & School of Physics & Materials Science, East China Normal University, Shanghai 200062, China

Received:2019-04-28 Online:2020-03-05 Published:2019-07-23
Supported by:
the National Natural Science Foundation of China (21872055).

摘要/Abstract

摘要： 本文采用自旋对齐回波（SAE）研究了α-LiAsF₆/PEO₆低聚环氧乙烯（PEO）分子量的体系.结果表明，自旋-晶格弛豫时间和线宽不是表征高电导率的好指标，而SAE实验的相关速率k_SAE是表征高电导率的较好指标.

关键词: 自旋对齐回波(SAE), 聚合物电解质, 线宽, 自旋-晶格弛豫时间

Abstract: Spin alignment echo (SAE) is employed here to study the α-LiAsF₆/PEO₆ system with low poly(ethylene oxide) (PEO) molecular weight. We show that the correlation rate k_SAE from SAE experiments, but not the spin-lattice relaxation time and the linewidth, is a better indicator to characterize the higher conductivity.

Key words: spin alignment echo (SAE), polymer electrolyte, linewidth, spin-lattice relaxation time

中图分类号:

O482.53

张炜, 刘清华, 王建印, 陈群, 胡炳文. 固体核磁共振⁷Li SAE技术揭示晶体晶格中的锂离子迁移[J]. 波谱学杂志, 2020, 37(1): 61-66.

ZHANG Wei, LIU Qing-hua, WANG Jian-yin, CHEN Qun, HU Bing-wen. Revealing of Li-Ion Transportation in Crystal Lattices by ⁷Li SAE in Solid-State NMR[J]. Chinese Journal of Magnetic Resonance, 2020, 37(1): 61-66.

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固体核磁共振⁷Li SAE技术揭示晶体晶格中的锂离子迁移

Revealing of Li-Ion Transportation in Crystal Lattices by ⁷Li SAE in Solid-State NMR

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