Development of Enhanced Performance Energy Storage Materials Using Tailorable Percolation Networks of Nanofibers

使用可定制的纳米纤维渗滤网络开发增强性能的储能材料

• 批准号: 1235769
• 负责人: Amy Fleischer
• 金额: $ 32.55万
• 依托单位: Villanova University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-09-01 至 2016-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1235769&HistoricalAwards=false
• 关键词: Development; Enhanced; Performance; Energy; Storage

CBET-1235769PI: FleischerMany sustainable or alternative energy systems such as large scale solar energy plants provide a surplus of energy at certain times (when the sun is shining) but much less at other times (such as at night). If the plants can be designed to store the surplus energy for use during times of decreased supply, the plant will operate more economically and efficiently. This will be even more beneficial if the plants can respond to rapid changes in energy requirements by using stored energy to meet this demand. This research project focuses on the use of phase change materials for large scale energy storage. Phase change materials store energy inside the material itself as it melts. As the material melts, energy is needed to release the bonds as the material transitions from solid to liquid. This energy is absorbed from the surroundings and is stored. When the material later solidifies, this stored energy is released from the material and can be used. The only down side to phase change material energy storage is that most existing phase change materials have characteristics that prevent a quick energy transfer response. Thus this project is focused on designing and creating improved phase change energy storage materials by improving the characteristics of the material to allow rapid storage of energy, and rapid release again upon demand. This will be done by embedding graphite nanofibers in the material and then controlling the motion of the nanofibers to provide a continuous path for the energy to penetrate into the material. The first layer of nanoparticles will be anchored at the surface and the remaining nanofibers will create a matrix of energy paths connected to these initial anchor points. The researchers will then extend this development such that the materials can be tailored for specific applications by creating controlled nanofibers networks with electrical and magnetic field control. The ability to control and manipulate nanofiber motion to tailor thermal properties has the potential to be truly transformational in the field. Energy storage though solid-liquid phase change is a wide-reaching technology that can be utilized in many applications. These applications include a wide range of sustainable technologies not just including solar energy systems, but also high efficiency heating and air conditioning systems, domestic hot water, and advanced building materials. Phase change materials can also be used to absorb heat and provide thermal control for portable electronics and communication systems. This study addresses a key weakness in phase change material technologies, and the successful execution of this project will enable greater implementation of sustainable technologies. The research undertaken in this project will provide educational opportunities for several graduate students and the researchers will use the solar energy system designs to enhance an existing engineering outreach project used to introduce middle school girls, particularly those from underrepresented minorities to engineering. This outreach project is executed through a partnership with Girl Scouts of Eastern Pennsylvania.

CBET-1235769 PI：Fleischer许多可持续或替代能源系统，如大型太阳能发电厂，在某些时候（当太阳照耀时）提供过剩的能量，但在其他时间（如晚上）则少得多。如果工厂可以设计为储存剩余能源以供供应减少时使用，工厂将更经济、更有效地运行。 如果工厂能够通过使用储存的能量来满足能源需求的快速变化，这将更加有益。 该研究项目的重点是将相变材料用于大规模储能。 相变材料在材料熔化时将能量储存在材料本身内部。 当材料熔化时，当材料从固体转变为液体时，需要能量来释放键。 这些能量从周围环境中吸收并储存起来。 当材料后来凝固时，这种储存的能量从材料中释放出来，可以使用。相变材料储能的唯一缺点是大多数现有的相变材料具有阻止快速能量传递响应的特性。 因此，该项目的重点是通过改善材料的特性来设计和创造改进的相变储能材料，以允许快速储存能量，并根据需求再次快速释放。这将通过将石墨纳米纤维嵌入材料中，然后控制纳米纤维的运动来实现，从而为能量渗透到材料中提供连续的路径。第一层纳米颗粒将被锚定在表面，其余的纳米纤维将创建连接到这些初始锚点的能量路径矩阵。然后，研究人员将扩展这一开发，通过创建具有电场和磁场控制的受控纳米纤维网络，可以为特定应用定制材料。 控制和操纵往复运动以定制热性能的能力有可能在该领域实现真正的变革。通过固-液相变进行能量储存是一种广泛的技术，可以在许多应用中使用。 这些应用包括广泛的可持续技术，不仅包括太阳能系统，还包括高效供暖和空调系统，家用热水和先进的建筑材料。相变材料还可用于吸收热量并为便携式电子设备和通信系统提供热控制。 这项研究解决了相变材料技术的一个关键弱点，该项目的成功执行将使可持续技术的更大实施成为可能。在这个项目中进行的研究将为几名研究生提供教育机会，研究人员将利用太阳能系统设计来加强现有的工程推广项目，该项目用于向中学女生，特别是那些代表性不足的少数民族介绍工程。这一外联项目是通过与宾夕法尼亚州东部女童子军合作执行的。