New-generation energy storage nanomaterials: synthesis, characterization and lab-scale device fabrication

全球能源需求正在迅速而显著地增长，因为能源是现代经济所有部门的关键成分，由于我们对其丰富和不间断供应的依赖，能源已经侵入了今天的生活质量。制造经济可行、环境友好的高能储能装置是当前科学界面临的主要挑战之一。为了满足大功率电子设备、备用电源和电动汽车对环保、高效的能量存储和转换装置的迫切需求，人们正在努力开发电池、燃料电池和超级电容器，以取代化石燃料的使用。超级电容器受到了广泛的关注，因为它们可以同时实现高功率和高能量密度，并且在电子设备、备用电源和电动汽车中显示出巨大的应用前景。超级电容器装置是用两个电极制造的，像电池一样浸入电解质中，但由绝缘多孔材料（如聚合物膜）隔开。在这个项目中，纳米结构翻译金属氧化物（TMO）薄膜将在铝上生长，因为铝将用作电荷收集器。这些薄膜将分别用碳纳米管、石墨烯或导电聚合物进一步改性，以制造具有改善电子和离子导电性的纳米结构复合薄膜超级电容器电极。最重要的是，由于TMO和碳材料的存在，这些纳米复合薄膜电极将利用假电容器和电双层电容器（EDLC）的储能机制。制造的电极将用于组装实验室规模的超级电容器器件并系统地表征它们。通过分解超疏水有机-无机网络制备纳米复合材料，这是一种完全创新的方法；因此，研究成果是可申请专利的。由于利用阳极氧化铝孔（AAO）和微纳米球光刻技术可以控制铝表面纳米图案的大小，研究结果将使我们能够制造出重量轻、体积小、成本低、高能量、高功率和长循环寿命的超级电容器器件。同样，在能源应用中使用木材产品纳米晶纤维素（NCC）将为魁北克、加拿大以及国际带来基础知识和实际应用。这些新知识将通过培训四名预计在五年内毕业的HQP来传授。此外，这一转移将通过国际期刊的出版物进行传播。

Global energy demand is growing rapidly and significantly as energy, the key ingredient in all sectors of modern economy, has invaded the quality of life today due to our dependency on its abundant and uninterrupted supply. Fabrication of economically viable and environment friendly high energy storage device is one of the major challenges for the current scientific community. To meet the urgent need for environment-friendly, high efficiency energy storage and conversion devices for high-power electronic devices, backup power supplies, and electric vehicles, efforts have been made to develop batteries, fuel cells, and supercapacitors (ECs) with the aim of replacing fossil fuel use. Supercapacitors have received much attention because they can simultaneously achieve high power and high energy densities and have shown great promises for use in electronic devices, backup power supplies, and electric vehicles. A supercapacitor device is fabricated using two electrodes, immersed in an electrolyte, like batteries, but separated by an insulated porous material such as polymer membranes. In this project, nanostructure translon metal oxides (TMO) thin films will be grown on aluminum since it will be used as charge collectors. These thin films will be further modified with carbon nanotube, graphene or conducting polymer, separately, to create nanostructured composite thin films supercapacitor electrodes with improved electronic and ionic conductivities. Above all, these nanocomposite thin films electrodes will utilize both energy storage mechanisms of pseudocapacitors and electrical double layer capacitors (EDLC) due to the presence of both TMO and carbon materials. The fabricated electrodes will be used to assemble lab-scale supercapacitor devices and characterize them systematically. The nanocomposite materials will be fabricated by decomposing superhydrophobic organic-inorganic network which is completely innovative; hence the outcome of the research is patentable. Due to the possibilities to control of the size of the nanopatterns on aluminum using anodized aluminum pore (AAO) and micro-nanosphere lithography, the outcome of the research will enable us to fabricate a supercapacitor device having light weight, small size, low cost with high energy, high power and long cycle life. Similarly, use of nanocrystalline cellulose (NCC), a product of wood, in energy application would bring fundamental knowledge as well as practical applications for Quebec, Canada as well as internationally. This new knowledge will be transferred through training of four HQP's who expected to be graduated within five years. Moreover, this transfer will be disseminated through publications in international journals.