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Batteries and Fuel Cells03:12

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A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
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功能化的基于triazine的小分子作为高效的电池阳极材料.

Yao-Chih Lu1, Febri Baskoro2, Meng-Ju Yang3

  • 1Department of Applied Chemistry, National Chi Nan University, No. 1 University Rd., Puli, Nantou 545, Taiwan.

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概括
此摘要是机器生成的。

新型三酸衍生物显示出作为离子电池 (LIB) 的高性能阳极材料的前景. 这些材料具有出色的容量,速率能力和循环稳定性,性能优于石墨阳极.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 电化学 电化学 电化学
  • 储能 储能 储能 储能 储能 储能

背景情况:

  • 氨酸框架提供结构的多功能性和化学强度.
  • 开发高性能阳极材料对于推进离子电池 (LIB) 的发展至关重要.

研究的目的:

  • 为LIBs合成和评估基于三的新型衍生物作为阳极材料.
  • 为了研究这些三氨酸阳极的电化学性能和结构/性能关系.

主要方法:

  • 合成了两种新的三酸衍生物 (pOMeAni和pOMe2CN).
  • 具有不同活性物质含量 (20%和40%) 的电极的电化学评估.
  • 在不同的电流密度和循环计数下进行性能测试,包括机械和运动研究.

主要成果:

  • 基于triazine的阳极实现了高特异性容量 (高达459mAhg-1在100mAg-1上),具有出色的库伦比效率 (~99%).
  • 在高电流密度 (2000 mA g−1对于2000 个周期) 中表现出优越的速率能力和循环稳定性,达到445 mA h g−1.1,达到445 mA h g−1.
  • 在高电流和长期运行中表现优于商业石墨阳极.

结论:

  • 氨酸衍生品显示出作为LIBs的替代阳极材料的巨大潜力.
  • 揭示了用于设计先进有机电极材料的结构/性能关系.
  • 为下一代有机电极材料在可持续能源储存中开辟了新的途径.