Multifunctional "White Graphene" for Solid-State Energy Storage Systems

在国际上，加拿大几十年来在清洁能源转换和储存技术方面一直处于领先地位。2014年，加拿大在新的国内清洁能源存储项目投资方面排名世界第六。在这方面，电化学储能系统如锂离子电池（LIBs）和超级电容器作为高效、低污染的储能系统正受到重视。它们的潜在应用是电动汽车和移动小型化电子设备。然而，为了其广泛的应用和商业化，市场需要固态和灵活的设计，以提高其能量/功率密度和安全性。这些技术障碍与这些系统主要隔室的结构有关，包括不安全且体积庞大的液体电解质。因此，这项为期5年的研究的主要目标是开发基于六方氮化硼（h-BN）纳米结构的高性能多功能电解质膜。H-BN被称为“白色石墨烯”，具有与石墨烯相似的晶体结构，并因其与石墨烯相比具有明显的物理和化学优势而引起了科学界的极大关注。具体而言，由于h-BN具有永久的电绝缘性质，因此具有很强的潜力，可以作为可靠的固态电解质被操纵并应用于lib和超级电容器中，并生产出具有高能量和功率密度的安全、全固态清洁能源存储系统。******预计，拟议的研究结果将通过性能和耐用性的改进，为固态储能系统的商业可行性技术提供所需的突破。拟议的研究的成功和高素质人员的培训将为加拿大能源和电子工业的商业活动和企业所需要的电化学工程和材料科学领域提供急需的技术和专门知识。这将加强加拿大清洁能源公司在竞争激烈的全球市场中的地位，并为加拿大知识型经济的发展做出贡献。通过这种方式，加拿大将在快节奏的工业中保持其在两项新兴技术（即纳米技术和清洁能源）发展方面的国际领先地位。

Internationally, Canada has held a significant lead in clean energy conversion and storage technologies for decades. In 2014, Canada ranked sixth in the world for investment in new domestic clean energy storage projects. In this regard, electrochemical energy storage systems such as Li-ion batteries (LIBs) and supercapacitors are under serious consideration as efficient and less polluting power-storage systems. Their potential applications are in electric vehicles and mobile miniaturized electronic devices. However, for their widespread utilization and commercialization, markets demand a solid-state and flexible design with an enhancement of their energy/power density and safety. These technical barriers are associated with the structure of the main compartments of these systems, including unsafe and voluminous liquid electrolytes. Thus, the main goal for this 5-year proposed research is to develop solid-state, multifunctional electrolyte membranes based on hexagonal boron nitride (h-BN) nanostructures with high performance and durability. H-BN, known as “white graphene”, has a similar crystal structure to graphene and has attracted a great deal of attention from the scientific community because of its distinct physical and chemical advantages over graphene. Specifically, due to having a permanent electrically insulating nature, h-BN has a strong potential to be manipulated and applied in LIBs and supercapacitors as a reliable solid-state electrolyte and produce safe, fully solid-state clean-energy storage systems with high energy and power densities.******It is expected that the results of the proposed research will provide the breakthrough needed to make solid-state energy storage systems commercially viable technologies through performance and durability improvements. The success of the proposed research and the training of highly qualified personnel (HQP) will contribute highly needed technology and expertise to the fields of electrochemical engineering and materials science, required for the business activities and enterprises of energy and electronics industries in Canada. This will strengthen the position of Canadian companies specializing in clean energy within a competitive global market and contribute to the development of a knowledge-based Canadian economy. In this way, Canada will maintain its place as an international leader in the development of two emerging technologies (i.e., nanotechnology and clean energy) within a fast-paced industry.