来自多孔分子的固体-液体电解质纳米复合物
Aaron Petronico1, Timothy P Moneypenny1,2, Bruno G Nicolau1
1Department of Chemistry , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States.
Journal of the American Chemical Society
|June 5, 2018
概括
多孔有机可以为离子电池制造有效的固体液体纳米复合电解质. 这些新材料具有高离子导电性和在室温下优异的氧化稳定性.
科学领域:
- 材料科学
- 电化学
- 纳米技术
背景情况:
- 开发先进的电解质对于高性能离子电池至关重要.
- 目前的电解质在导电性,稳定性和安全性方面面临挑战.
- 多孔有机为材料设计提供可调节的结构.
研究的目的:
- 研究基于多孔有机的固体液体电解质纳米复合材料 (SLEN) 作为离子电解质的潜力.
- 评估这些新型复合电解质的离子导电性,激活能量和氧化稳定性.
主要方法:
- 使用LiTFSI/DME电解质和多孔有机制成固体液体电解质纳米复合材料 (SLEN).
- 在室温下测量离子导电性.
- 激活能量屏障的确定.
- 对/+的氧化稳定性的评估.
主要成果:
- SLEN 的离子导电率大约为 1 × 10−3 S cm−1.
- 复合材料的激活屏障为0.16 eV,被归类为超离子导体.
- SLEN表现出极好的氧化稳定性,高达4.7V与Li/Li+.
结论:
- 来自多孔有机的固体-液体纳米复合材料是室温有效的离子电解质.
- 这种三元系统允许合理设计具有可调节分子架构的电解质.
- 开发的SLEN显示出下一代离子电池应用的前景.
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