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Julian Selinger1, M Tauhidul Islam2, Qamar Abbas3

  • 1Institute of Bioproducts and Paper Technology, Graz University of Technology, Inffeldgasse 23, 8010 Graz, Austria; Department of Bioproducts and Biosystems, Aalto University, Vuorimiehentie 1, FI-00076 Aalto, Finland.

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概括

这项研究通过添加微纤维化纤维素 (MFC) 和与BTCA交叉连接来增强绿色能源存储的纤维素分离器. 这提高了湿强度和尺寸稳定性,使它们适合用于电池.

关键词:
交叉连接 (crosslinking) 是一种交叉连接.储能储能是指储能过程中的能量.微纤维化纤维素微纤维化纤维素纸制造业 纸制造业 纸制造业分离器的设计设计.

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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
  • 可再生能源储存可再生能源的储存

背景情况:

  • 纤维素衍生分离器对于绿色能源储存至关重要,但往往缺乏足够的孔隙性和湿强度.
  • 现有的分离器在性能和耐用性方面面临着先进的能源存储应用的挑战.

研究的目的:

  • 为使用微纤维化纤维素 (MFC) 的储能设备开发改进的基于纤维素的分离器.
  • 为了解决纸质分离器中湿强度和尺寸稳定性差的局限性.
  • 为了评估增强分离器的电化学性能.

主要方法:

  • 将微纤维化纤维素 (MFC) 整合到纸张中,以定制分离器特性.
  • 使用1,2,3,4-butanetetracarboxylic acid (BTCA) 进行纤维素分离器的交叉连接.
  • 物理性能 (厚度,空气透性,机械强度) 和电化学性能 (阻抗光谱,静电循环) 的表征.

主要成果:

  • 集成MFC改善了网络形成,并允许定制厚度和空气透度.
  • 与BTCA交叉连接显著增加了多达6700%的湿强度,并确保了尺寸稳定性.
  • 电化学性能与商业分离器相当,显示出良好的离子扩散,速率能力和电容保持.

结论:

  • 使用MFC和BTCA交联的纸张技术方法有效地克服了基于纸张的分离器的局限性.
  • 开发的分离器为绿色能源存储应用提供了一个有希望的,可持续的替代方案.
  • 这种方法提高了分离器的耐用性和稳定性,而不会影响电化学性能.